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I am in need of a 5167 or 5193 or Equivalent magnetron. None= of the vendors seem to have any in stock. Thanks in advance !!!<= /DIV>

Garry

--Boundary_(ID_9XFSjlt1Bt7FZC3yB3NRgA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 17 May 2004 13:40:22 +0200 From: "Ole G. Nielsen" Subject: Relative uptime. Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Cc: =?ISO-8859-1?Q?J=F8rgen=20Petersen?= , =?ISO-8859-1?Q?Lars=20Pr=E6stegaard?= Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Dear Listmembers, our physicists have asked me to broadcast this question = "Has anyone a clinic with modern MLC-equipped linear accelerators from more than one vendor (Siemens, Elekta, or Varian)? If so, could you comment on the relative up-time of Siemens, Elekta, or Varian linear accelerators? If you have other comments they are also very welcome." Thank you in advance Ole G. Nielsen Ole G. Nielsen Dept. of Medical Physics Aarhus University Hospital Phone +45 8949 2487 Fax +45 8949 2590 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["10054" "Monday" "17" "May" "2004" "07:49:07" "-0400" "neville.wiles@spectrum-health.org" "neville.wiles@spectrum-health.org" nil "265" "Siemens Digital RF Driver." nil nil nil "5" nil nil (number " " mark "U neville.wiles@spe May 17 265/10054 " thread-indent "\"Siemens Digital RF Driver.\"\n") nil nil nil nil nil nil] nil) Date: Mon, 17 May 2004 07:49:07 -0400 From: neville.wiles@spectrum-health.org Subject: Siemens Digital RF Driver. 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 X-Babyl-Labels: 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_whhi27FfsoGF+rbcWodJLA) Content-type: text/plain; charset=iso-8859-1 Hello, Does anyone know of a vendor that can rebuild Siemens RF Drivers? I have a 4 year old one that is losing output power intermittanly. Thanks in advance. Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 --Boundary_(ID_whhi27FfsoGF+rbcWodJLA) Content-type: text/html; charset=iso-8859-1

Hello,

Does anyone know of a vendor that can rebuild Siemens RF Drivers? I have a 4 year old one that is losing output power intermittanly.

Thanks in advance.

Neville Wiles

Spectrum Health

Grand Rapids, MI

616 391-3639

--Boundary_(ID_whhi27FfsoGF+rbcWodJLA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 17 May 2004 14:01:22 +0100 (BST) From: =?iso-8859-1?q?kim=20yeung?= Subject: Re: Varian HE Clinac Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: --Boundary_(ID_s0+muYiGr7H0xrcNTabIQQ) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Hi Colleagues, Varian 2300CD When we change any energy to no mode the status of the energy switch will remain unchanged. Does anyone know the reasons behind? --------------------------------- Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now --Boundary_(ID_s0+muYiGr7H0xrcNTabIQQ) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 8bit

Hi Colleagues,

Varian 2300CD

When we change any energy to no mode the status of the energy switch will remain unchanged.

Does anyone know the reasons behind?

Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now --Boundary_(ID_s0+muYiGr7H0xrcNTabIQQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 17 May 2004 13:48:39 -0500 From: Stephen Jordan Subject: 2100C "Series 3" foils Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Cc: Richard Popple Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Our Physics department is studying a publication that refers to Varian 2100C "Series 3" electron scattering foils (9e and 20e). Can someone on the list please explain what Varian's reference designations are with respect to foils? Our 2100c (C1 serial 078) has 6,9,12,15,18e, 6x,15x. I cannot locate documentation pertaining to the foil type or "series" that we are using. Thank you ! Steve Jordan UAB Dept. of Radiation Physics From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 18 May 2004 08:35:39 -0600 From: "Lollar, James" Subject: Siemens Mev 74 Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message Thread-Topic: Siemens Mev 74 Thread-Index: AcQ85WQeXzgAGAIrTKC8r4MbDt/LOQ== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_kNHqigNogXwVNWm4k8N0pw) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable To the List: Does anyone out there in the Linac World have a need for the following Siemens Linac for spares are what ever. This unit is in storage in Denver, Colorado. If you have any interest please contact me direct. I believe there is no charge for Linac except for removal of unit from storage & shipping. =20 Siemens Mevatron 74 DOB circa 1984-5. =20 Single 10MV photon energy. =20 6,9,12,14 MeV electron energies =20 Assymetrix X jaw. =20 No MLC. =20 New Accelerator guide. =20 I don't know if they've kept vacuum. They were in the beginning but not sure now.=20 =20 James Lollar Exempla Saint Joseph & Exempla Lutheran Medical Center Linac/Imaging Engineer 303-837-7795 Office 303-829-3197 Cell 303-837-6557 Fax 303-897-2019 Pager lollarj@exempla.org =20 =20 =20 --Boundary_(ID_kNHqigNogXwVNWm4k8N0pw) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

To the=20 List:

Does anyone out there in the Linac World have = a need=20 for the following Siemens Linac for spares are what ever. This unit is = in=20 storage in Denver, Colorado. If you have any interest please contact me = direct.=20 I believe there is no charge for Linac except for removal of unit = from=20 storage & shipping.

Siemens=20 Mevatron 74 DOB circa 1984-5.

Single 10MV photon energy.

6,9,12,14 MeV electron = energies

Assymetrix X jaw.

No MLC.

New Accelerator guide.

I don't know if they've kept vacuum. = They were in=20 the beginning but not sure now.

James Lollar

Exempla Saint = Joseph=20 &

Exempla Lutheran = Medical=20 Center

Linac/Imaging=20 Engineer

303-837-7795=20 Office

303-829-3197=20 Cell

303-837-6557=20 Fax

303-897-2019=20 Pager

lollarj@exempla.org<= /A>

=00 --Boundary_(ID_kNHqigNogXwVNWm4k8N0pw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 18 May 2004 10:51:00 -0400 From: "Eason, Guy" Subject: foil carrousel faults. Varian 21EX Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: foil carrousel faults. Varian 21EX Thread-Index: AcQ854iVRnv4jUQ7ToSqt2It/nrskg== X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id JAA09103 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Has any one out there run into a bad aux back plane causing foil carrousel faults. As long as we keep pressure on the pwm card against the back plane, the carrousel works fine. This is minimum pressure but pressure none the less. If no pressure is applied to the pwm card then the carrousel does not turn at all. Varian 21EX sn 1771. Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital Albany, GA (229) 312-2280 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["1364" "Tuesday" "18" "May" "2004" "14:11:07" "-0400" "Eason, Guy" "geason@ppmh.org" nil "48" "RE: foil carrousel faults. Varian 21EX Thanks to all who have replied." nil nil nil "5" nil nil (number " " mark "U Eason, Guy May 18 48/1364 " thread-indent "\"RE: foil carrousel faults. Varian 21EX Thanks to all who have replied.\"\n") nil nil nil nil nil nil] nil) Date: Tue, 18 May 2004 14:11:07 -0400 From: "Eason, Guy" Subject: RE: foil carrousel faults. Varian 21EX Thanks to all who have replied. Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: foil carrousel faults. Varian 21EX Thread-Index: AcQ8+itgIJgDYUw4ToKtYWUbTXCUVwACRrmw X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA12739 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: I will take the back plane out and try to resolder the connections on the back. Will let everyone know how its turns out. Thanks to all who have replied. Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital Albany, GA (229) 312-2280 -----Original Message----- From: Steve Davis [mailto:steved@nmohc.com] Sent: Tuesday, May 18, 2004 1:04 PM To: Eason, Guy Subject: Re: foil carrousel faults. Varian 21EX Guy, Varian has had numerous problems with traces and solder joints on printed circuit boards over the years which it sounds as if you are experiencing one now. Steve Davis New Mexico Oncology Hematology Consultants. 4901 Lang Ave. NE Albuquerque, N.M. 87109 505-379-7665 steved@nmohc.com ----- Original Message ----- From: "Eason, Guy" To: "Linac-Engineering (E-mail)" Sent: Tuesday, May 18, 2004 8:51 AM Subject: foil carrousel faults. Varian 21EX > Has any one out there run into a bad aux back plane causing foil carrousel faults. As long as we keep pressure on the pwm card against the back plane, the carrousel works fine. This is minimum pressure but pressure none the less. If no pressure is applied to the pwm card then the carrousel does not turn at all. Varian 21EX sn 1771. > > Guy Eason > Radiation Oncology > Phoebe Putney Memorial Hospital > Albany, GA > (229) 312-2280 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["1400" "Thursday" "20" "May" "2004" "12:28:00" "+1000" "Johnson Glenn" "glenn.johnson@dhhs.tas.gov.au" nil "34" "IPSN" nil nil nil "5" nil nil (number " " mark "U Johnson Glenn May 20 34/1400 " thread-indent "\"IPSN\"\n") nil nil nil nil nil nil] nil) Date: Thu, 20 May 2004 12:28:00 +1000 From: Johnson Glenn Subject: IPSN Sender: owner-linac-eng@plato.aristotle.net To: "LINAC_ENGINEERS (E-mail)" X-NetTas-MTS: 'i4K2Tv6M027117' scanned using rules for Default MTS (plato.aristotle.net), previous hop was [147.109.65.6] X-Scanned-By: MIMEDefang 2.40 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hi All, Have been getting intermittent (on a daily basis) IPSN interlocks. It can occur on any position / treatment setup, and happens as a random event during beam on. Event Log registers the interlock as IPSN, but position information is as setup - meaning nothing has moved. I have since put on another monitor onto the AVI Interface, so we can watch from the Console Room if there is any change in readout. RV mode shows the PLANNED POSITION, and once the machine positions are within tolerance the ACTUAL POSITION readout display goes black from red. At any instant during beam on, I have confirmed the ACTUAL POSITION readout to momentarily flicker red, into out of tolerance, then back to black, in tolerance. I have captured, at different times, Couch Vertical, Coll Rotation, Gantry Rotation all go into the red by as much as 3.0 cm or 3.0 degrees. Its physically impossible for the Clinic to move by this much out of tolerance and back to the original position. Because I'm not seeing any change in Event Log or change in readout display on Treatment monitor, its perhaps some random noise ? Pieces in question are - 600C #298, Varies In Room Monitor & Verification Interface V1.4.06 and Varies Treatment V6.1. Has any one had any similar experiences with this type of fault ? You've gotta love the intermittent faults !! Regards, Glenn Johnson Radiation Engineer W P Holman Clinic From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["234" "Thursday" "20" "May" "2004" "08:38:37" "+0100" "White, Malcolm" "Malcolm.White@ubht.swest.nhs.uk" nil "8" "Re IPSN" nil nil nil "5" nil nil (number " " mark "U White, Malcolm May 20 8/234 " thread-indent "\"Re IPSN\"\n") nil nil nil nil nil nil] nil) Date: Thu, 20 May 2004 08:38:37 +0100 From: "White, Malcolm" Subject: Re IPSN 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 X-Babyl-Labels: Oh the good old IPSN random fault. I have seen a jaw move by up to 0.5cm between the radiographer setting it and then leaving the room. Changing the pots made no difference. Have you checked the power supplies to the pots? -- Malc From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["5660" "Thursday" "20" "May" "2004" "13:26:50" "+0200" "Will Pazda" "will.pazda@rxl.co.za" nil "154" "Equipment Available" nil nil nil "5" nil nil (number " " mark "U Will Pazda May 20 154/5660 " thread-indent "\"Equipment Available\"\n") nil nil nil nil nil nil] nil) Date: Thu, 20 May 2004 13:26:50 +0200 From: Will Pazda Subject: Equipment Available 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 X-Babyl-Labels: 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_r+m6YaZQIRoP532Y/E7k9Q) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_xeOVr8a3hiq3wQorDZP1Mw)" --Boundary_(ID_xeOVr8a3hiq3wQorDZP1Mw) Content-type: text/plain; CHARSET=US-ASCII Hi, We have the following equipment available :- Plato Planning System (Silicon Graphics workstation running V4.00 Plato s/w) Philips SL75/20 Linac (with Ram Style Couch) CMS Focus Planning System (HP Visualise workstation running V3.0.0 Focus s/w) 3M LaserImager Plus Siemens Somatom CR CT Scanner If anybody is interested in making any offers on any of the above and requires further info, please email me. Regards, Will Pazda Cape Town - South Africa --Boundary_(ID_xeOVr8a3hiq3wQorDZP1Mw) Content-type: text/html

Hi,

We have the following equipment available :-

Plato Planning System (Silicon Graphics workstation running V4.00 Plato s/w)

Philips SL75/20 Linac (with Ram Style Couch)

CMS Focus Planning System (HP Visualise workstation running V3.0.0 Focus s/w)

3M LaserImager Plus

Siemens Somatom CR CT Scanner

If anybody is interested in making any offers on any of the above and requires further info, please email me.

Regards,

Will Pazda

Cape Town - South Africa

--Boundary_(ID_xeOVr8a3hiq3wQorDZP1Mw)-- --Boundary_(ID_r+m6YaZQIRoP532Y/E7k9Q)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 20 May 2004 08:41:08 -0500 From: "Kyle, John" Subject: RE: IPSN Sender: owner-linac-eng@plato.aristotle.net To: Johnson Glenn , "LINAC_ENGINEERS (E-mail)" X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: IPSN Thread-Index: AcQ+Itb/fu6MMYyZQm2C0126iLZY0wATNm1A X-OriginalArrivalTime: 20 May 2004 13:41:10.0211 (UTC) FILETIME=[1C1C9130:01C43E70] X-WSS-ID: 6CB26AF1229524-01-01 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA23499 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Check the primary and secondary readout pots. Also check the teeth on the belts. John Kyle Coordinator Technical Support Services Brookwood Medical Center 205-877-1092 -----Original Message----- From: Johnson Glenn [mailto:glenn.johnson@dhhs.tas.gov.au] Sent: Wednesday, May 19, 2004 9:28 PM To: LINAC_ENGINEERS (E-mail) Subject: IPSN Hi All, Have been getting intermittent (on a daily basis) IPSN interlocks. It can occur on any position / treatment setup, and happens as a random event during beam on. Event Log registers the interlock as IPSN, but position information is as setup - meaning nothing has moved. I have since put on another monitor onto the AVI Interface, so we can watch from the Console Room if there is any change in readout. RV mode shows the PLANNED POSITION, and once the machine positions are within tolerance the ACTUAL POSITION readout display goes black from red. At any instant during beam on, I have confirmed the ACTUAL POSITION readout to momentarily flicker red, into out of tolerance, then back to black, in tolerance. I have captured, at different times, Couch Vertical, Coll Rotation, Gantry Rotation all go into the red by as much as 3.0 cm or 3.0 degrees. Its physically impossible for the Clinic to move by this much out of tolerance and back to the original position. Because I'm not seeing any change in Event Log or change in readout display on Treatment monitor, its perhaps some random noise ? Pieces in question are - 600C #298, Varies In Room Monitor & Verification Interface V1.4.06 and Varies Treatment V6.1. Has any one had any similar experiences with this type of fault ? You've gotta love the intermittent faults !! Regards, Glenn Johnson Radiation Engineer W P Holman Clinic From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["9851" "Thursday" "20" "May" "2004" "08:58:03" "-0600" "Kurt Knibutat" "kurtkn@CancerBoard.ab.ca" nil "233" "Re: IPSN" nil nil nil "5" nil nil (number " " mark "U Kurt Knibutat May 20 233/9851 " thread-indent "\"Re: IPSN\"\n") nil nil nil nil nil nil] nil) Date: Thu, 20 May 2004 08:58:03 -0600 From: Kurt Knibutat Subject: Re: IPSN Sender: owner-linac-eng@plato.aristotle.net To: Johnson Glenn Cc: "LINAC_ENGINEERS (E-mail)" Organization: Tom Baker Cancer Centre X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Something to check... We just went through some strange readout problems with CL21EX #1291. The main culprit was the +/-15V supply in the console. This is the power source for the precision supplies for the PRO circuits. Our original problem showed up as a drifting Collimator Rot. readout. It turned out we had a flaky fuse/fuse-holder in the +15V circuit. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre (403) 944-1089 This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 20 May 2004 13:56:46 -0400 From: "Maddox, Buford J" Subject: RE: IPSN Sender: owner-linac-eng@plato.aristotle.net To: 'Johnson Glenn' , "LINAC_ENGINEERS (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Sounds like noise or a power supply. I have seen modulator (DEQ recovery spike) noise get into the analog multiplexer, so that you could affect which axis had a motion fault by changing the DeQ %. Right now I am chasing a very intermittent HWFA in a 600c: both gantry pots go together, coll reads 100 more than possible, UJ1 gives the HWFA, come couch readouts are impossible numbers. This is a good example of the fact that your interlock will often be the first item in the list of things that are monitored, if they all have something in common. Trying to find out if it is gantry related, etc., but therapists do too many things in order to try to recover quickly. Trying to get them to be the detectives, as it will never happen for me. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Johnson Glenn Sent: Wednesday, May 19, 2004 10:28 PM To: LINAC_ENGINEERS (E-mail) Subject: IPSN Hi All, Have been getting intermittent (on a daily basis) IPSN interlocks. It can occur on any position / treatment setup, and happens as a random event during beam on. Event Log registers the interlock as IPSN, but position information is as setup - meaning nothing has moved. I have since put on another monitor onto the AVI Interface, so we can watch from the Console Room if there is any change in readout. RV mode shows the PLANNED POSITION, and once the machine positions are within tolerance the ACTUAL POSITION readout display goes black from red. At any instant during beam on, I have confirmed the ACTUAL POSITION readout to momentarily flicker red, into out of tolerance, then back to black, in tolerance. I have captured, at different times, Couch Vertical, Coll Rotation, Gantry Rotation all go into the red by as much as 3.0 cm or 3.0 degrees. Its physically impossible for the Clinic to move by this much out of tolerance and back to the original position. Because I'm not seeing any change in Event Log or change in readout display on Treatment monitor, its perhaps some random noise ? Pieces in question are - 600C #298, Varies In Room Monitor & Verification Interface V1.4.06 and Varies Treatment V6.1. Has any one had any similar experiences with this type of fault ? You've gotta love the intermittent faults !! Regards, Glenn Johnson Radiation Engineer W P Holman Clinic From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 20 May 2004 13:54:25 -0400 From: "Maddox, Buford J" Subject: RE: IPSN Sender: owner-linac-eng@plato.aristotle.net To: 'Kurt Knibutat' , Johnson Glenn Cc: "LINAC_ENGINEERS (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: I had the same PS go flaky in a 2100. The -15 would go down slowly. Initial symptom was that dose rate would die, then later the smell of smoke in the treatment room would get everyone all excited, wanting to call fire dept. pcbs in the DeQ deck would burn up resistors. The -15v is used to keep a transistor turned off in the trigger circuits there. When it stayed on, 300v ps chain cooked some resistors. Took a couple of spares and a while watching the deQ PCB (pulsing) to find it, as we suspected a problem in the DeQ HV, divider, trigger xformer, etc. in the beginning. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Kurt Knibutat Sent: Thursday, May 20, 2004 10:58 AM To: Johnson Glenn Cc: LINAC_ENGINEERS (E-mail) Subject: Re: IPSN Something to check... We just went through some strange readout problems with CL21EX #1291. The main culprit was the +/-15V supply in the console. This is the power source for the precision supplies for the PRO circuits. Our original problem showed up as a drifting Collimator Rot. readout. It turned out we had a flaky fuse/fuse-holder in the +15V circuit. -- Kurt Knibutat Sr Technical Equipment Officer Tom Baker Cancer Centre (403) 944-1089 This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 21 May 2004 08:13:22 +1200 From: Dave Pinchin Subject: Re: IPSN Sender: owner-linac-eng@plato.aristotle.net To: glenn.johnson@dhhs.tas.gov.au, linac-eng@plato.aristotle.net Content-disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id PAA02054 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: G'day, Yup, sure have. Just upgraded to VARiS gen 6 with new console s/w (V6) on 3 linacs. 2100#40, 2100#1164 &600#248. Had this IPSN interlock on all 3 machines. Turned out to be the VARiS tolerance table being unrealisticly tight. :D >>> Johnson Glenn 20/05/04 14:28:00 >>> Hi All, Have been getting intermittent (on a daily basis) IPSN interlocks. It can occur on any position / treatment setup, and happens as a random event during beam on. Event Log registers the interlock as IPSN, but position information is as setup - meaning nothing has moved. I have since put on another monitor onto the AVI Interface, so we can watch from the Console Room if there is any change in readout. RV mode shows the PLANNED POSITION, and once the machine positions are within tolerance the ACTUAL POSITION readout display goes black from red. At any instant during beam on, I have confirmed the ACTUAL POSITION readout to momentarily flicker red, into out of tolerance, then back to black, in tolerance. I have captured, at different times, Couch Vertical, Coll Rotation, Gantry Rotation all go into the red by as much as 3.0 cm or 3.0 degrees. Its physically impossible for the Clinic to move by this much out of tolerance and back to the original position. Because I'm not seeing any change in Event Log or change in readout display on Treatment monitor, its perhaps some random noise ? Pieces in question are - 600C #298, Varies In Room Monitor & Verification Interface V1.4.06 and Varies Treatment V6.1. Has any one had any similar experiences with this type of fault ? You've gotta love the intermittent faults !! Regards, Glenn Johnson Radiation Engineer W P Holman Clinic ********************************************************************** 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 ********************************************************************** From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 21 May 2004 07:19:50 -0400 From: "Eason, Guy" Subject: Thanks, Foil Carrousel faults Varian 21EX Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineering (E-mail)" X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: Thanks, Foil Carrousel faults Varian 21EX Thread-Index: AcQ/JYgR4z8mF8/+T1SXGQ3X98SymQ== X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA12596 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: I took out the Aux Back plane and resoldered every connection on the board. Reinstalled after nearly falling off the ladder twice and applied power. Went through the carrousel calibration and every thing looks great. No more faults. Must have been a bad solder joint cause it is working fine now. Thanks to all the help. Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital Albany, GA (229) 312-2280 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["422" "Tuesday" "25" "May" "2004" "10:34:45" "-0400" "DP" "dopoole@ieee.org" nil "13" "SIEMENS ACCELERATORS" nil nil nil "5" nil nil (number " " mark "U DP May 25 13/422 " thread-indent "\"SIEMENS ACCELERATORS\"\n") nil nil nil nil nil nil] nil) Date: Tue, 25 May 2004 10:34:45 -0400 From: DP Subject: SIEMENS ACCELERATORS Sender: owner-linac-eng@plato.aristotle.net To: Linac Engineers X-Accept-Language: en-us, en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Can anyone give me a short description of how Siemens modify their machines to enable generating 6MV and 18MV from the same waveguide? -- Darrell O. Poole Senior Physicist M.D. Anderson Cancer Center Orlando 321.841.7036 Office (Works sometimes and only when I am at my desk) 407.721.2658 CELL ( Works sometimes but ALWAYS after hours) 407.980.7024 BEEPER ( Works all the time) 407.649.6895 FAX dopoole@ieee.org From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["5930" "Tuesday" "25" "May" "2004" "13:11:11" "-0400" "Scott Mange" "smange@ameritech.net" nil "156" "ACCELERATORS IN GENERAL" nil nil nil "5" nil nil (number " " mark "U Scott Mange May 25 156/5930 " thread-indent "\"ACCELERATORS IN GENERAL\"\n") nil nil nil nil nil nil] nil) Date: Tue, 25 May 2004 13:11:11 -0400 From: Scott Mange Subject: ACCELERATORS IN GENERAL In-reply-to: <40B35985.6070001@ieee.org> Sender: owner-linac-eng@plato.aristotle.net X-Sender: smange@mailhost.det.ameritech.net To: Linac Engineers X-GCMulti: 1 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: --Boundary_(ID_QXH4elDNltzf+sJP8n05og) Content-type: text/plain; format=flowed; charset=us-ascii; x-avg-checked=avg-ok-182E5850 Content-transfer-encoding: 8bit Darrell Poole asked for a description of the Siemens machines and how you get different beam energies from it. As a physicist preparing for the board exam, I'd like to ask the members of the engineers list to explain this phenomenon in general (i.e. all linac types). Please explain in very simple terms. I'm interested in the material from a conceptual perspective. If you have the time and inclination, please explain in a simple way how the linac works in general. Perhaps you could include things that surprise you or that you find interesting. Something that a guy who doesn't get to dig around inside the guts of the thing would be surprised by or not expect (energy slits for example). What are common misconceptions about the linacs? Any other specific tidbits like beam current for both photon and electron, current through the thyratron, pulse duration, etc. Your help and patients with the little projects I send to this list is always appreciated. Sincerely Yours, Scott Mange --Boundary_(ID_QXH4elDNltzf+sJP8n05og) Content-type: text/plain; x-avg-checked=avg-ok-182E5850; x-avg=cert; charset=us-ascii Content-disposition: inline --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.690 / Virus Database: 451 - Release Date: 5/22/04 --Boundary_(ID_QXH4elDNltzf+sJP8n05og)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 25 May 2004 13:45:05 -0400 From: "Nelson, Steve" Subject: RE: ACCELERATORS IN GENERAL Sender: owner-linac-eng@plato.aristotle.net To: Scott Mange , Linac Engineers content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 Thread-Topic: ACCELERATORS IN GENERAL Thread-Index: AcRCfeHeDYLVJZiKQKSpCXjyUHtbJAAARf3w X-MUSC-MailScanner-Information: Please contact postmstr@musc.edu for more information X-MUSC-MailScanner: Found to be clean X-MUSC-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0.578, required 4, LINES_OF_YELLING 0.01, SUBJ_ALL_CAPS 0.57) X-MailScanner-From: nelson@radonc.musc.edu X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA24451 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Scott, I would recommend that you pick up a copy of a book by Karzmark and Morton entitled "A Primer on Theory and Operation of Linear Accelerators in Radiation Therapy". It should be available from Medical Physics Publishing Corporation. I've been teaching residents from this for many years and it has been updated periodically to keep up with the technology. It's a great introduction and is not vendor specific. Regards, Stephen -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Scott Mange Sent: Tuesday, May 25, 2004 1:11 PM To: Linac Engineers Subject: ACCELERATORS IN GENERAL Darrell Poole asked for a description of the Siemens machines and how you get different beam energies from it. As a physicist preparing for the board exam, I'd like to ask the members of the engineers list to explain this phenomenon in general (i.e. all linac types). Please explain in very simple terms. I'm interested in the material from a conceptual perspective. If you have the time and inclination, please explain in a simple way how the linac works in general. Perhaps you could include things that surprise you or that you find interesting. Something that a guy who doesn't get to dig around inside the guts of the thing would be surprised by or not expect (energy slits for example). What are common misconceptions about the linacs? Any other specific tidbits like beam current for both photon and electron, current through the thyratron, pulse duration, etc. Your help and patients with the little projects I send to this list is always appreciated. Sincerely Yours, Scott Mange From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 25 May 2004 18:08:51 -0500 From: Thomas McCausland Subject: Re: SIEMENS ACCELERATORS In-reply-to: <40B35985.6070001@ieee.org> Sender: owner-linac-eng@plato.aristotle.net To: Linac Engineers Reply-to: acceltek@acceltekservice.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: > Can anyone give me a short description of how Siemens modify their > machines to enable generating 6MV and 18MV from the same waveguide? > > -- > Darrell O. Poole > Senior Physicist > M.D. Anderson Cancer Center Orlando > 321.841.7036 Office (Works sometimes and only when I am at my desk) > 407.721.2658 CELL ( Works sometimes but ALWAYS after hours) > 407.980.7024 BEEPER ( Works all the time) 407.649.6895 FAX > dopoole@ieee.org > > Short answer is - They don't. Unless something has changed in the past couple of years. I'm no waveguide engineer, but I think they just design the guides 'bandpass' wide enough to allow both a low and high photon energy to be passed. This means that the guide might not be super efficient at any energy, but still be able to run the rated dose output at a high and low energy. What you do have to do is run more gun current on the low energy then the high, since the guide is more efficient at the higher energy. For example , you might run 200 or 240 ma on the high energy, but 900 or 1000 ma on the low energy...no bellows, energy switches..none of that. Hope this helps. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["9420" "Wednesday" "26" "May" "2004" "07:46:17" "-0400" "Xraytherapy@aol.com" "Xraytherapy@aol.com" nil "265" "something to consider when cahnging a target in linac" nil nil nil "5" nil nil (number " " mark "U Xraytherapy@aol.c May 26 265/9420 " thread-indent "\"something to consider when cahnging a target in linac\"\n") nil nil nil nil nil nil] nil) Date: Wed, 26 May 2004 07:46:17 -0400 (EDT) From: Xraytherapy@aol.com Subject: something to consider when cahnging a target in linac 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 X-Babyl-Labels: --Boundary_(ID_/l+M5RdX8diHIPjJqvwOKg) Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable Hello all, I imagine that some of you have already seen this on the Physics bulletin=20 board. I was unaware that targets became radioactive. Maybe I am the only on= e who=20 didn't know this, but just in case, please take this into consideration when= =20 changing a target.=20 Date:=A0 =A0 Tue, 25 May 2004 11:46:46 -0400 From:=A0 =A0 Lars Ewell Subject: Re: Radioactive Target Chris Hawkins, =A0 Greetings. =A0 This is an interesting question about what types of radionuclides are created in this machine. =A0 I believe that the main type of activation would be from neutron emission/capture. =A0 There is an empirical formula for the energy at which the Giant Dipole Resonance (GDR) is excited: E =3D 77(A)^(-1/3)MeV (see S.S. Hanna 'Proceedings of the Giant Multipole Resonance Topical Conference, 15-17 Oct. 1979, Oak Ridge Tenn.': Harwood Academic Puclbishers, New York 1980).=A0 So if the target is made of tungsten (A=3D184), you get an approximate energy of 14MeV for excitation of the GDR.=A0 This can dexcite by neutron emission, so that if you have photons of around this energy or higher then you can expect that neutrons will be generated in a tungsten target. =A0 After they are released, they can be captured by other nuclei so that I would suspect that tungsten 185 would be a potential radionuclide. It decays via beta emission with a 74.8d 1/2 life.=A0 Tungsten 183 would also be a radionuclide to consider.=A0 Looking at my copy of CRC handbook of chemistry and physics, I see that naturally occuring Tungsten is composed of isotopes ^182W, ^184W and ^186W, so radionuclides of one below and one above these isotopes are things to consider. =A0 Of course if the target is made of copper or something else, a different calculation needs to be done. =A0 Hope this helps. =A0 regards, =A0 Lars Ewell ----------------------------------------------------------------------------= -- ---------- We just pulled the target out of a PRIMUS (nominal high energy 23 MV) and of course it is radioactive. With an ion survey meter the rate is 90 mR/hr at the surface of the hot side. The queries are: What radionuclides am I seeing?? What half-life can I expect?? --------------------------- Lars Ewell Physics Resident Department of Radiation Oncology University of Michigan Medical Center Doug Steers Danbury Engineering Inc. 194 Old Mount Tom Road Bantam, CT 06750 1-860-567-3054 www.danburyengineering.com --Boundary_(ID_/l+M5RdX8diHIPjJqvwOKg) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable Hello all,

I imagine that some of you have already seen this on the Physics bulletin bo= ard. I was unaware that targets became radioactive. Maybe I am the only one=20= who didn't know this, but just in case, please take this into consideration=20= when changing a target.

Date:=A0 =A0 Tue, 25 May 2004 11:46:46 -0400
From:=A0 =A0 Lars Ewell <ewell@MED.UMICH.EDU>
Subject: Re: Radioactive Target

Chris Hawkins,

=A0 Greetings.

=A0 This is an interesting question about what types of radionuclides
are created in this machine.

=A0 I believe that the main type of activation would be from neutron
emission/capture.

=A0 There is an empirical formula for the energy at which the Giant
Dipole
Resonance (GDR) is excited: E =3D 77(A)^(-1/3)MeV (see S.S. Hanna
'Proceedings
of the Giant Multipole Resonance Topical Conference, 15-17 Oct. 1979,
Oak Ridge Tenn.': Harwood Academic Puclbishers, New York 1980).=A0 So if
the target is made of tungsten (A=3D184), you get an approximate energy
of 14MeV for excitation of the GDR.=A0 This can dexcite by neutron
emission,
so that if you have photons of around this energy or higher then you
can
expect that neutrons will be generated in a tungsten target.

=A0 After they are released, they can be captured by other nuclei so
that
I would suspect that tungsten 185 would be a potential radionuclide.
It
decays via beta emission with a 74.8d 1/2 life.=A0 Tungsten 183 would
also
be a radionuclide to consider.=A0 Looking at my copy of CRC handbook of
chemistry and physics, I see that naturally occuring Tungsten is
composed
of isotopes ^182W, ^184W and ^186W, so radionuclides of one below
and one above these isotopes are things to consider.

=A0 Of course if the target is made of copper or something else, a
different
calculation needs to be done.

=A0 Hope this helps.

=A0 regards,

=A0 Lars Ewell

----------------------------------------------------------------------------= ------------

We just pulled the target out of a PRIMUS (nominal high energy 23 MV)
and
of course it is radioactive. With an ion survey meter the rate is 90
mR/hr at
the surface of the hot side.

The queries are:

What radionuclides am I seeing??

What half-life can I expect??

---------------------------
Lars Ewell
Physics Resident
Department of Radiation Oncology
University of Michigan Medical Center

Doug Steers
Danbury Engineering Inc.
194 Old Mount Tom Road
Bantam, CT 06750
1-860-567-3054

www.danburyengineering.com
--Boundary_(ID_/l+M5RdX8diHIPjJqvwOKg)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 26 May 2004 07:36:24 -0400 From: "Maddox, Buford J" Subject: RE: SIEMENS ACCELERATORS Sender: owner-linac-eng@plato.aristotle.net To: 'DP' , Linac Engineers X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Electrons are boiled off from the white hot gun cathode. They are then accelerated and focussed into a few mm hole in the first RF cavity of the accelerating guide (a stack of cylindrical RF cavities with a hole in the middle) by the gun high voltage. They are typically over 1/2 the speed of light when exiting the gun. The cavities have a high voltage across them which accelerates the electrons when the RF is on the positive 1/2 of the cycle. The first RF cavity bunches up the electrons, in sync with the peak of the RF, and brings them essentially to the speed of light. In a standing wave accelerating guide, each RF cavity gives the electrons more energy as they pass through. The Varian course used a stack of plates with batteries as an analogy. The RF which is out of sync, wrong polarity, occurrs in the side cavities, shortening the guide length. Another common analogy is that of a wave pool, where you might be kicked by the rise of each wave if you moved down the pool with the right speed. Or a series of revolving doors that smack your behind. The amount of energy added is based on the RF voltage present. Siemens varies the RF voltage to change the energy. Varian and Mitsubishi do the same, but also cause some cavites to have low Rf by inserting plungers, for low energy use. the Automatic Frequency Control is a critical component that keeps the waveguide on resonance for maximum RF efficiency and voltage developed in the cavities. It has a strong effect on the energy produced. The electrons absorb energy from the Rf, an effect called beam loading, which also affects the final energy. This is largest for the lower energies. At lower energies you need much more current because the dose per electron is lower and the guide is somewhat less efficient. Travelling wave linacs like the older Philips SL-75 work on a surfing analogy, where the electrons ride on an RF wave that travels down the guide once. Many of the above comments apply. But the waveguide cavities are very different. The Karzmark/Numan/Tanabe book "Medical Electron Accelerators" is good, especially on the Varian type machine. I also use it to teach, as mentioned. The above folksy description will get you started at a low level. Older books by Livingood and another by Livingston are very good, probably out of print. I think it is a very good idea for physicists and engineers to have a deeper, and shared, understanding of the linac so that the implications of work done are considered, and appropriate measurements are made afterward. Jerry MS Physics, Engineer by inclination -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of DP Sent: Tuesday, May 25, 2004 10:35 AM To: Linac Engineers Subject: SIEMENS ACCELERATORS Can anyone give me a short description of how Siemens modify their machines to enable generating 6MV and 18MV from the same waveguide? -- Darrell O. Poole Senior Physicist M.D. Anderson Cancer Center Orlando 321.841.7036 Office (Works sometimes and only when I am at my desk) 407.721.2658 CELL ( Works sometimes but ALWAYS after hours) 407.980.7024 BEEPER ( Works all the time) 407.649.6895 FAX dopoole@ieee.org From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["15897" "Wednesday" "26" "May" "2004" "10:15:17" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "359" "RE: something to consider when cahnging a target in linac" nil nil nil "5" nil nil (number " " mark "U Maddox, Buford J May 26 359/15897 " thread-indent "\"RE: something to consider when cahnging a target in linac\"\n") nil nil nil nil nil nil] nil) Date: Wed, 26 May 2004 10:15:17 -0400 From: "Maddox, Buford J" Subject: RE: something to consider when cahnging a target in linac Sender: owner-linac-eng@plato.aristotle.net To: "'Xraytherapy@aol.com'" , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_D5ebdcRWfb/YP3tWZU18xQ) Content-type: text/plain; charset=iso-8859-1 In theory, you could get radioactivity from as low as 8+Mv for the primary beam. I have never seen this. I haven't seen 10Mv make a radioactive target, but I would expect this to happen with the copper used around some targets, producing a low level. The bottom line is to check, and never touch them as the level changes with the distance. A survey meter is far away compared to your hand if you touch it, so you will get much higher levels to your finger. Talk to your friendly Physicist! Our 15Mv machine makes the target fairly radioactive. I would be interested in the levels people have measured. I recall levels in the mr/hr range. From my experience with high level research linacs (275Mv 1Amp), copper, nickel, iron are all likely radioactive isotopes. At very high levels even concrete and the air become radioactive. BTW, pulsed radiation from the Linac can saturate the some kinds of meters used for low level radioactivity checks. Beware Good post on a subject of interest to all.. Jerry (Radiation Safety Officer in a former job) -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Xraytherapy@aol.com Sent: Wednesday, May 26, 2004 7:46 AM To: linac-eng@plato.aristotle.net Subject: something to consider when cahnging a target in linac Hello all, I imagine that some of you have already seen this on the Physics bulletin board. I was unaware that targets became radioactive. Maybe I am the only one who didn't know this, but just in case, please take this into consideration when changing a target. Date: Tue, 25 May 2004 11:46:46 -0400 From: Lars Ewell Subject: Re: Radioactive Target Chris Hawkins, Greetings. This is an interesting question about what types of radionuclides are created in this machine. I believe that the main type of activation would be from neutron emission/capture. There is an empirical formula for the energy at which the Giant Dipole Resonance (GDR) is excited: E = 77(A)^(-1/3)MeV (see S.S. Hanna 'Proceedings of the Giant Multipole Resonance Topical Conference, 15-17 Oct. 1979, Oak Ridge Tenn.': Harwood Academic Puclbishers, New York 1980). So if the target is made of tungsten (A=184), you get an approximate energy of 14MeV for excitation of the GDR. This can dexcite by neutron emission, so that if you have photons of around this energy or higher then you can expect that neutrons will be generated in a tungsten target. After they are released, they can be captured by other nuclei so that I would suspect that tungsten 185 would be a potential radionuclide. It decays via beta emission with a 74.8d 1/2 life. Tungsten 183 would also be a radionuclide to consider. Looking at my copy of CRC handbook of chemistry and physics, I see that naturally occuring Tungsten is composed of isotopes ^182W, ^184W and ^186W, so radionuclides of one below and one above these isotopes are things to consider. Of course if the target is made of copper or something else, a different calculation needs to be done. Hope this helps. regards, Lars Ewell -------------------------------------------------------------------------------- -------- We just pulled the target out of a PRIMUS (nominal high energy 23 MV) and of course it is radioactive. With an ion survey meter the rate is 90 mR/hr at the surface of the hot side. The queries are: What radionuclides am I seeing?? What half-life can I expect?? --------------------------- Lars Ewell Physics Resident Department of Radiation Oncology University of Michigan Medical Center Doug Steers Danbury Engineering Inc. 194 Old Mount Tom Road Bantam, CT 06750 1-860-567-3054 www.danburyengineering.com --Boundary_(ID_D5ebdcRWfb/YP3tWZU18xQ) Content-type: text/html; charset=iso-8859-1

In theory, you could get radioactivity from as low as 8+Mv for the primary beam. I have never seen this. I haven't seen 10Mv make a radioactive target, but I would expect this to happen with the copper used around some targets, producing a low level. The bottom line is to check, and never touch them as the level changes with the distance. A survey meter is far away compared to your hand if you touch it, so you will get much higher levels to your finger. Talk to your friendly Physicist! Our 15Mv machine makes the target fairly radioactive. I would be interested in the levels people have measured. I recall levels in the mr/hr range. From my experience with high level research linacs (275Mv 1Amp), copper, nickel, iron are all likely radioactive isotopes. At very high levels even concrete and the air become radioactive.

BTW, pulsed radiation from the Linac can saturate the some kinds of meters used for low level radioactivity checks. Beware

Good post on a subject of interest to all..

Jerry

(Radiation Safety Officer in a former job)

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Xraytherapy@aol.com
Sent: Wednesday, May 26, 2004 7:46 AM
To: linac-eng@plato.aristotle.net
Subject: something to consider when cahnging a target in linac

Hello all,

I imagine that some of you have already seen this on the Physics bulletin board. I was unaware that targets became radioactive. Maybe I am the only one who didn't know this, but just in case, please take this into consideration when changing a target.

Date: Tue, 25 May 2004 11:46:46 -0400
From: Lars Ewell <ewell@MED.UMICH.EDU>
Subject: Re: Radioactive Target

Chris Hawkins,

Greetings.

This is an interesting question about what types of radionuclides
are created in this machine.

I believe that the main type of activation would be from neutron
emission/capture.

There is an empirical formula for the energy at which the Giant
Dipole
Resonance (GDR) is excited: E = 77(A)^(-1/3)MeV (see S.S. Hanna
'Proceedings
of the Giant Multipole Resonance Topical Conference, 15-17 Oct. 1979,
Oak Ridge Tenn.': Harwood Academic Puclbishers, New York 1980). So if
the target is made of tungsten (A=184), you get an approximate energy
of 14MeV for excitation of the GDR. This can dexcite by neutron
emission,
so that if you have photons of around this energy or higher then you
can
expect that neutrons will be generated in a tungsten target.

After they are released, they can be captured by other nuclei so
that
I would suspect that tungsten 185 would be a potential radionuclide.
It
decays via beta emission with a 74.8d 1/2 life. Tungsten 183 would
also
be a radionuclide to consider. Looking at my copy of CRC handbook of
chemistry and physics, I see that naturally occuring Tungsten is
composed
of isotopes ^182W, ^184W and ^186W, so radionuclides of one below
and one above these isotopes are things to consider.

Of course if the target is made of copper or something else, a
different
calculation needs to be done.

Hope this helps.

regards,

Lars Ewell

----------------------------------------------------------------------------------------

We just pulled the target out of a PRIMUS (nominal high energy 23 MV)
and
of course it is radioactive. With an ion survey meter the rate is 90
mR/hr at
the surface of the hot side.

The queries are:

What radionuclides am I seeing??

What half-life can I expect??

---------------------------
Lars Ewell
Physics Resident
Department of Radiation Oncology
University of Michigan Medical Center

Doug Steers
Danbury Engineering Inc.
194 Old Mount Tom Road
Bantam, CT 06750
1-860-567-3054

www.danburyengineering.com

--Boundary_(ID_D5ebdcRWfb/YP3tWZU18xQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 26 May 2004 12:03:58 -0400 From: Richie Klein Subject: Varian Table Racquet Re-Stringing Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MSMail-Priority: Normal X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_s10F8FuqsBonb0UJSEURuQ) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable Linear Accelerator Support Services has Varian Table Racquets for sale: ETR Table Racquets - newly re-strung and with the mylar cover - = $750/plus shipping We also re-string Varian and Nucletron Table Racquets. For more information, reply to this email or call 704-553-7708 --Boundary_(ID_s10F8FuqsBonb0UJSEURuQ) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable

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--Boundary_(ID_s10F8FuqsBonb0UJSEURuQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 26 May 2004 16:34:29 -0400 From: Peter Vitali Subject: Re: something to consider when cahnging a target in linac Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineers, Listserver Mess" X-Accept-Language: en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Good Afternoon All: The target is not the only item to become radioactive. Any item that the high energy electrons (over 10Mev) can hit will also become radioactive. If the energy of the electron can produce neutrons when they are stopped, then we start seeing induced radioactivity. It depends on the beam line of the drift system. After the electrons leave the accelerator structure they now travel in a drift system until they reach the target or exit through the vacuum window as pure electrons. Depending on how the drift system is constructed, straight to a 90 degree bend magnet, straight to a 270 Achromatic bend magnet, or a slalom system with two to four bend magnets, where ever the beam changes direction there is going to be some electrons striking the walls of the bend magnets. In order to keep the beam in the center of the bend magnets there are usually Energy Determining Slits. These are usually copper bars inserted into the beam path to determine if the beam is of the correct energy. If the beam hits one of these slits because its energy is higher or lower than what the bend magnet is set for then the slits produce a correction signal to slightly change the energy so the electrons are in the middle of the bend path. "The energy determining slits shown in Figs. 23(a) and 23(b) are sources of leakage radiation from stopped electrons. However, this bremsstrahlung is direct away form the isocenter and not contributory to patient exposure." Medical Physics, Vol 11, No 2, Mar/Apr 1984 Page 121, Review Article: C.J. Karzmak: Advances in Linear Accelerator Design. They may not effect the patient but it can sure effect the engineer who has to work in this area when repairing the accelerator. We had a CGR Satittarie 25MV Linear Accelerator. The energy slits were in the tunnel between the Accelerator Room and the Treatment room. If they were running 25MV photons the slits got really radioactive. As a matter of fact both slits had thermal switches on them to shut down the beam if the beam energy did not change. One of the problems was that the thermal switches would get damaged by the radiation from the slit and electrons hitting them and have to be replaced. Usually we had to wait a couple of hours before we could change them. Also the slits had to be removed because the kapton insulation would also be damaged from the electrons striking the kapton and the radiation from the copper slit which would cause the slit to short to the frame of the bend magnet. Other items that were radioactive for a very shot time after the beam was on was the 120-degree bend magnet in the head, the target and filters, the couch top and the patient. My advice then is if you work on a machine with and photon energy higher than 10 MV do a survey of the head if you have to go into the bend magnet area. Don't forget the 3 rules to minimize exposure, Time, Distance and Shielding. My RSO, Mike Bohan, supplied a 4th rule: The 4th rule in this case is to wait for decay, if possible. Most activation products have short enough half-lives that a few hours of decay can make a big difference in exposures to a service engineer. I might also remind them that when removing irradiated parts , they should use remote handling tools instead of handling them directly. Hope this helps 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... From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["3879" "Thursday" "27" "May" "2004" "13:06:30" "-0700" "Watters, Dan" "dwatters@umcaz.edu" nil "101" "MD2 Collimator" nil nil nil "5" nil nil (number " " mark "U Watters, Dan May 27 101/3879 " thread-indent "\"MD2 Collimator\"\n") nil nil nil nil nil nil] nil) Date: Thu, 27 May 2004 13:06:30 -0700 From: "Watters, Dan" Subject: MD2 Collimator Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message Thread-Topic: MD2 Collimator Thread-Index: AcREJhge7NAGEpSXRwaNGJwnarDb6A== X-imss-version: 2.0 X-imss-result: Passed X-imss-scores: Clean:24.7700 C:20 M:1 S:5 R:5 X-imss-settings: Baseline:1 C:1 M:1 S:1 R:1 (0.0000 0.0000) X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_rDjyZbI+Hk6tg1GYCMOmng) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable My thanks to all who responded to my message concerning the collimator = not moving when anything was inserted in slot 3 on the accessory holder. = Problem turned out to be a bad PROM on function controller 7. =20 Thank you, =20 Dan Watters Radiology Engineering University Med Center Tucson, Arizona --Boundary_(ID_rDjyZbI+Hk6tg1GYCMOmng) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable

My = thanks to all who=20 responded to my message concerning the collimator not moving when = anything was=20 inserted in slot 3 on the accessory holder. Problem turned out to = be a bad=20 PROM on function controller 7.

Thank=20 you,

Dan=20 Watters

Radiology=20 Engineering

University Med=20 Center

Tucson,=20 Arizona

--Boundary_(ID_rDjyZbI+Hk6tg1GYCMOmng)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 28 May 2004 04:21:37 -0500 From: ROD WILLIAMS Subject: HDR and Elekta SLS Simulator Sender: owner-linac-eng@plato.aristotle.net X-Sender: roddmod@hotmail.com To: linac-eng@plato.aristotle.net X-Originating-IP: [65.30.223.163] X-Originating-Email: [roddmod@hotmail.com] X-OriginalArrivalTime: 28 May 2004 09:21:37.0969 (UTC) FILETIME=[2DA30210:01C44495] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hello to all, I am looking for help for a problem that we here at Waukesha are having with our HDR room. We have an Elekta SLS simulator, which has a Philips SP 80 generator and the standard X-Tube. The problem has been and continues to be shooting films and fluoroing when the tube and II is in the lateral position. Shooting though the patients hip area left to right is tough, it takes multiple exposures sometimes three or four at max KV and MAS for one film. The fluoro is able to get though sometimes and sometimes not, this only using the 15-ma boost mode. I have them try to get the II and Tube as close as possible but this is hard to do with the leg supports on the table. I have had Philips in twice for the problem and the X-Ray tube has been replaced. This last time the II checked weak so they recommended that the II at a cost of 51 K be replaced. I have no problem doing this but if it takes so much to get a film from this machine I am thinking that even with spending 51K on a new II that the problem will still be there. So I thought I would post this to see if anyone else as any thoughts and what equipment they are using for their HDR rooms and if they are having the same problem getting though the patient with there X- Ray equipment. Thanks Rod ROD WILLIAMS ENCORE ENGINEERING SERVICES 7906 W. DIXON ST MILWAUKEE WI 53214 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["2758" "Friday" "28" "May" "2004" "15:18:48" "-0400" "Conn, Calvin R." "CRConn@st-claire.org" nil "63" "RE: HDR and Elekta SLS Simulator" nil nil nil "5" nil nil (number " " mark "U Conn, Calvin R. May 28 63/2758 " thread-indent "\"RE: HDR and Elekta SLS Simulator\"\n") nil nil nil nil nil nil] nil) Date: Fri, 28 May 2004 15:18:48 -0400 From: "Conn, Calvin R." Subject: RE: HDR and Elekta SLS Simulator 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 X-Babyl-Labels: Hello Rod, I don't have this generator so I can't be specific. But, I can make some observations, suggestions, or ideas. You did not mention the techniques used while making the lat exposures so I don't know if they are reasonable or not. Have you had this machine for some time and if so are you trying to use techniques similar to what where using in the past? Is the fluoro max dose rate at the limit when you have trouble in fluoro mode? Why did they replace the x-ray tube? How do you define 'weak II tube', are you measuring it with a light meter and estimating a conversion factor or are depending on other estimates based on dose or depending on what Philips has told you? How is the processor QC running? Having problems in both the fluoro mode and radiographic mode seems to indicate the possibility of more than one problem. I don't know if this was any help or not, but, maybe it could give you some ideas of things to check out. Calvin R. Conn CRConn@st-claire.org From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 31 May 2004 13:07:27 +0930 From: a kovendy Subject: LANTIS virus Sender: owner-linac-eng@plato.aristotle.net To: linac engineering list Organization: ARC X-MSMail-Priority: Normal X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: To all users of LANTIS, Has anyone been hit by a virus which attacks the Lantis file GLB.DLL ?? This file resides in the Lantis executable root directory and is required by Lantis and ViewStation ... but not PrimeView. The virus continually appens a .vir extension to the GLB.DLL file making it impossible to execute, delete or overwrite with a fresh copy. I have scoured the system registry and OS system files and found nothing. The virus scanner (NAI McAfee) has recognised it as a "Morphine" variant - but could not clean it, and a check of several antiVirus web sites have revealed nothing. The virus may have created a background task which constantly clobbers any new instances of GLB.DLL. Of some consolation is the fact that the patient database was unaffected. I believe some other Siemens sites have been hit by this virus - and they have done what we have been forced to do - wipe and reinstall. My main concern is that we may get hit again since we still have no idea how to block it. In appreciation of any info, Regards, Andrew Kovendy Manager, Physics, Engineering & IT Adelaide Radiotherapy Centre Adelaide, South Australia Tel 08 8223 3022 Mob 0429 698 198 Fax 08 8232 1243 email akovendy@adelaideradiotherapycentre.com.au From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["9381" "Monday" "31" "May" "2004" "17:02:05" "+1200" "Dave Pinchin" "Dave.Pinchin@cdhb.govt.nz" nil "225" "Re: LANTIS virus" nil nil nil "5" nil nil (number " " mark "U Dave Pinchin May 31 225/9381 " thread-indent "\"Re: LANTIS virus\"\n") nil nil nil nil nil nil] nil) Date: Mon, 31 May 2004 17:02:05 +1200 From: Dave Pinchin Subject: Re: LANTIS virus Sender: owner-linac-eng@plato.aristotle.net To: akovendy@adelaideradiotherapycentre.com.au, linac-eng@plato.aristotle.net Content-disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id AAA06737 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: G'day, I suspect this is not actually a virus. Contact McAffee to get this one sorted out. As you all will know, antivirus software looks for particular fingerprints which 99 time out of 100 indicates that a virus is present. Most modern software sets up a quarantine regime where a suspected virus can be 'locked away' until it's proved safe (or otherwise). I suspect you've found the 1 out of 100 and the file is locked in quarantine. The file is safe but is quarantined. Contact McAffee to verify the file as safe or otherwise, they will have a hotline where advice can be sought. Using the words like 'Clinical' 'Treatment' 'radiotherapy' etc may cut through the red tape babble and give you the priority you need. McAffee will NEED to examine your file and they will produce a revised fingerprint file to prevent the false positives. I once had a .txt file which emailing s/w had a fit over. The file was a joke stating that "Mad Cow disease was the only virus not transmitted by Outlook Express" and that "microsoft are trying to solve this issue......" I guess using the words "outlook express" and "Virus" tripped the fingerprint algorythm. Good luck Dave. >>> "a kovendy" 31/05/04 15:37:27 >>> To all users of LANTIS, Has anyone been hit by a virus which attacks the Lantis file GLB.DLL ?? This file resides in the Lantis executable root directory and is required by Lantis and ViewStation ... but not PrimeView. The virus continually appens a ..vir extension to the GLB.DLL file making it impossible to execute, delete or overwrite with a fresh copy. I have scoured the system registry and OS system files and found nothing. The virus scanner (NAI McAfee) has recognised it as a "Morphine" variant - but could not clean it, and a check of several antiVirus web sites have revealed nothing. The virus may have created a background task which constantly clobbers any new instances of GLB.DLL. Of some consolation is the fact that the patient database was unaffected. I believe some other Siemens sites have been hit by this virus - and they have done what we have been forced to do - wipe and reinstall. My main concern is that we may get hit again since we still have no idea how to block it. In appreciation of any info, Regards, Andrew Kovendy Manager, Physics, Engineering & IT Adelaide Radiotherapy Centre Adelaide, South Australia Tel 08 8223 3022 Mob 0429 698 198 Fax 08 8232 1243 email akovendy@adelaideradiotherapycentre.com.au ********************************************************************** 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 ********************************************************************** From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 31 May 2004 15:25:31 +1000 From: "Caunt, Peter" Subject: Re: Carrousel Noise Errors 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 X-Babyl-Labels: Listservmembers, And the winner is .......Mr Chris Bartee from VCU Health Systems.....the closest to the fault. O.K. Intermittent carrousel faults - two faults in one. The first being the carrousel position pot, intermittent after 3 years - found when obtaining both extender cards needed for C3 type carrousel/Bmag control cards - measuring the pot voltage at the board with a CRO. The second, W57 gantry patch to Aux electronics, chewed through by the water hose fitting - a common enough problem for Mr V to have a cable in stock. At particular gantry angles grounded the (-) terminal of the carrousel motor - allowed carrousel to be driven in only one direction by PWM signal. NB W57 runs pos R&T, buncher R&T, Angle R&T, Trim, Target, coll rotation and carrousel rotation. Any one of which can be grounded through the wearing of this cable - well worth a look at the back of the stand if any such problems present. Thanks to all who responded. Kind Regards, Peter Caunt Rad Onc Canberra, Australia. "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 31 May 2004 12:58:13 +0100 (BST) From: =?iso-8859-1?q?kim=20yeung?= Subject: Re: DS12 & Yield interlocks Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: --Boundary_(ID_5VY7c+UOJi4DetJcwl5voA) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Hi Colleagues, Varian 600CD Version 6.1 We experience frequent sudden changes of dose rate this causes DS12 and Yield interlocks in our 600CD Clinac. We notice the magnetron current is unstable, even when the dose rate and yield servo are off and the PFN voltage has a flat-bottom waveform. The delay line and the phase wand have been adjusted but no luck. Any advice or suggestion? Kim Yeung --------------------------------- Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now --Boundary_(ID_5VY7c+UOJi4DetJcwl5voA) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 8bit

Hi Colleagues,

Varian 600CD Version 6.1

We experience frequent sudden changes of dose rate this causes DS12 and Yield interlocks in our 600CD Clinac.

We notice the magnetron current is unstable, even when the dose rate and yield servo are off and the PFN voltage has a flat-bottom waveform.

The delay line and the phase wand have been adjusted but no luck.

Any advice or suggestion?

Kim Yeung

Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now --Boundary_(ID_5VY7c+UOJi4DetJcwl5voA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 01 Jun 2004 08:33:05 -0300 From: Greg MacKinnon Subject: 2100C/D HWFA interlock Sender: owner-linac-eng@plato.aristotle.net To: "LinacEng (E-mail)" Importance: Normal X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 (Normal) X-Babyl-Labels: Hi Group Over the last month I have seen on my 2100C/D three occurs of HWFA interlock. The EVENT log for each reported as follows: HWFA: Primary/2nd cha mismatch 03 UJ2. HWFA: Primary/2nd cha mismatch 03 Gantry. HWFA: Controller Interlock CPU Beam ON/OFF failed while turning Beam on. The first two cleared after entering or leaving service mode, therapist in process of setting up patient when interlock occur and lost pendant motions. The third one cleared after turning the key from Ready, therapist depressed the BEAM ON button then fault occurred. Is it possible they are all related to a common faulty part or is this three separate items failing. Any information would be appreciated. Thanks in advance __________________________________________ 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 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["3704" "Tuesday" "1" "June" "2004" "10:28:29" "-0500" "ajengstl@gundluth.org" "ajengstl@gundluth.org" nil "76" "Re: 2100C/D HWFA interlock" nil nil nil "6" nil nil (number " " mark "U ajengstl@gundluth Jun 1 76/3704 " thread-indent "\"Re: 2100C/D HWFA interlock\"\n") nil nil nil nil nil nil] nil) Date: Tue, 01 Jun 2004 10:28:29 -0500 From: ajengstl@gundluth.org Subject: Re: 2100C/D HWFA interlock Sender: owner-linac-eng@plato.aristotle.net To: Greg MacKinnon Cc: "LinacEng (E-mail)" , owner-linac-eng@plato.aristotle.net X-MIMETrack: Serialize by Router on GLSMTP2/GUNDLUTH(Release 5.0.12 |February 13, 2003) at 06/01/2004 10:23:35 AM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: .Greg, In my humble experience the first 2 usually mean a primary or secondary pot is bad or jaws need cleaning/lube. Look in the event log to see what the pot readings were at the time of fault. Sometimes doing a recal. corrects it if Pri/Sec not off much. The CPU Beam on/off can be a keyswitch, the Beam on keyswitch, the control processor, maybe one of the timer boards. Could be other things but these are the ones I can remember now. This one is tough to find sometimes. Alan Engstler Gundersen Lutheran The information transmitted above 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 message in error, please contact the above party and delete the material from any computer or server. Thank you. "Greg MacKinnon" ealth.ca> cc: Sent by: Subject: 2100C/D HWFA interlock owner-linac-eng@plato.ar istotle.net 06/01/04 08:33 AM Hi Group Over the last month I have seen on my 2100C/D three occurs of HWFA interlock. The EVENT log for each reported as follows: HWFA: Primary/2nd cha mismatch 03 UJ2. HWFA: Primary/2nd cha mismatch 03 Gantry. HWFA: Controller Interlock CPU Beam ON/OFF failed while turning Beam on. The first two cleared after entering or leaving service mode, therapist in process of setting up patient when interlock occur and lost pendant motions. The third one cleared after turning the key from Ready, therapist depressed the BEAM ON button then fault occurred. Is it possible they are all related to a common faulty part or is this three separate items failing. Any information would be appreciated. Thanks in advance __________________________________________ 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 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["450" "Tuesday" "1" "June" "2004" "11:10:05" "-0500" "Thomas McCausland" "acceltek@acceltekservice.com" nil "15" "Orthovoltage -Bucky X-ray" nil nil nil "6" nil nil (number " " mark "U Thomas McCausland Jun 1 15/450 " thread-indent "\"Orthovoltage -Bucky X-ray\"\n") nil nil nil nil nil nil] nil) Date: Tue, 01 Jun 2004 11:10:05 -0500 From: Thomas McCausland Subject: Orthovoltage -Bucky X-ray Sender: owner-linac-eng@plato.aristotle.net To: Linac Engineers Reply-to: acceltek@acceltekservice.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: We have a customer that has an orthovoltage treatment unit made by Bucky X-Ray International, from New York, NY. - produced in 1995. They want a door interlock switch connected to it, but they don't have any schematics for the machine. Does anyone have schematics for this unit, or can tell me where the connect point for a door switch would go. The model number is 6520.310. Thomas W. McCausland AccelTek Inc. 281-652-0059 888-619-8811 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["14758" "Wednesday" "2" "June" "2004" "07:52:38" "-0400" "Xraytherapy@aol.com" "Xraytherapy@aol.com" nil "374" "orthovoltage Bucky X-Ray" nil nil nil "6" nil nil (number " " mark "U Xraytherapy@aol.c Jun 2 374/14758 " thread-indent "\"orthovoltage Bucky X-Ray\"\n") nil nil nil nil nil nil] nil) Date: Wed, 02 Jun 2004 07:52:38 -0400 (EDT) From: Xraytherapy@aol.com Subject: orthovoltage Bucky X-Ray 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 X-Babyl-Labels: --Boundary_(ID_35KDKVYBovZx2kEaClW/xg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello Thomas, Our company deals exclusively in superficial and orthovoltage x-ray systems. We have parts and manuals for the Bucky units here, as well as all other manufacturers equipment. Please call me 9AM to 5 PM Eastern time for help. Kind regards, Doug Steers Danbury Engineering Inc. 194 Old Mount Tom Road Bantam, CT 06750 1-860-567-3054 www.danburyengineering.com --Boundary_(ID_35KDKVYBovZx2kEaClW/xg) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable Hello Thomas,

Our company deals exclusively in superficial and orthovoltage x-ray systems.= We have parts and manuals for the Bucky units here, as well as all other ma= nufacturers equipment.

Please call me 9AM to 5 PM Eastern time for help.

Kind regards,

Doug Steers
Danbury Engineering Inc.
194 Old Mount Tom Road
Bantam, CT 06750
1-860-567-3054

www.danburyengineering.com
--Boundary_(ID_35KDKVYBovZx2kEaClW/xg)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 02 Jun 2004 19:15:32 -0400 From: "Maddox, Buford J" Subject: RE: DS12 & Yield interlocks Sender: owner-linac-eng@plato.aristotle.net To: 'kim yeung' , Linac-Eng X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_0Ye+4wXRDvJi/Iic5luJ/Q) Content-type: text/plain; charset=iso-8859-1 I assume you have smooth tuning on both sides of resonance, no jumps. What is the nature of the Mag I instability? Leading edge, trailing edge breakup, jumps in the middle of the pulse? Typical bad magnetron symptoms. Or is the pulse shape ok, just jumping in the height, typical of a DeQing problem? If you look on a longer time scale, is there a pattern on charge I indicative of a line related problem? Is target I showing instability? Any vacuum activity? I have installed a toroid on the gun leads (well insulated) sometimes to look at the gun pulse. Hope this gives you some ideas. Or is it already fixed? Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of kim yeung Sent: Monday, May 31, 2004 7:58 AM To: Linac-Eng Subject: Re: DS12 & Yield interlocks Hi Colleagues, Varian 600CD Version 6.1 We experience frequent sudden changes of dose rate this causes DS12 and Yield interlocks in our 600CD Clinac. We notice the magnetron current is unstable, even when the dose rate and yield servo are off and the PFN voltage has a flat-bottom waveform. The delay line and the phase wand have been adjusted but no luck. Any advice or suggestion? Kim Yeung _____ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now --Boundary_(ID_0Ye+4wXRDvJi/Iic5luJ/Q) Content-type: text/html; charset=iso-8859-1

I assume you have smooth tuning on both sides of resonance, no jumps.

What is the nature of the Mag I instability? Leading edge, trailing edge breakup, jumps in the middle of the pulse? Typical bad magnetron symptoms.

Or is the pulse shape ok, just jumping in the height, typical of a DeQing problem? If you look on a longer time scale, is there a pattern on charge I indicative of a line related problem? Is target I showing instability? Any vacuum activity?

I have installed a toroid on the gun leads (well insulated) sometimes to look at the gun pulse.

Hope this gives you some ideas. Or is it already fixed?

Jerry

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of kim yeung
Sent: Monday, May 31, 2004 7:58 AM
To: Linac-Eng
Subject: Re: DS12 & Yield interlocks

Hi Colleagues,

Varian 600CD Version 6.1

We experience frequent sudden changes of dose rate this causes DS12 and Yield interlocks in our 600CD Clinac.

We notice the magnetron current is unstable, even when the dose rate and yield servo are off and the PFN voltage has a flat-bottom waveform.

The delay line and the phase wand have been adjusted but no luck.

Any advice or suggestion?

Kim Yeung

Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now

--Boundary_(ID_0Ye+4wXRDvJi/Iic5luJ/Q)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 09:12:06 -0400 From: Richie Klein Subject: Varian Morning Warm-up printers Sender: owner-linac-eng@plato.aristotle.net To: linac X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_R9PentLaLGuvWXYbMlxQgQ) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable Hello, Has anyone replaced the Varian supplied printer with a laser or ink-jet = printer and is it working well? Older "C" series Clinacs used the HP Quiet Jet and the newer ones use = the Okidata Microline 590. Any information would be appreciated. Richie Klein RS&A --Boundary_(ID_R9PentLaLGuvWXYbMlxQgQ) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable

Hello,

Has anyone replaced the Varian supplied = printer=20 with a laser or ink-jet printer and is it working = well?

Older "C" series Clinacs used the HP = Quiet Jet and=20 the newer ones use the Okidata Microline 590.

Any information would be = appreciated.

Richie Klein

RS&A

--Boundary_(ID_R9PentLaLGuvWXYbMlxQgQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 10:40:41 -0400 From: "Maddox, Buford J" Subject: RE: Carrousel Noise Errors Sender: owner-linac-eng@plato.aristotle.net To: "'Caunt, Peter'" , "Linac Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: For those of you who listen to Garrison Keillor, Prairie Home Companion on PBS (USA), duct tape solves everything. We often use it on the gantry cables at spots that rub. TX for posting answers. Any suggestions on the problem I and another person posted recently, the pro-spro mismatch interlock which is not really what it seems, but affects several locations, and may be in the console processing somewhere? This is not the common problem we all know how to fix, a pot mismatch. The mismatch ilk is only a symptom, many more show up on the same event in the event log. It is intermittent, and the cause is gone when you look, a lot of grief. You have all been there, I'm sure. Post a few stories. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Caunt, Peter Sent: Monday, May 31, 2004 1:26 AM To: Linac Eng (E-mail) Subject: Re: Carrousel Noise Errors Listservmembers, And the winner is .......Mr Chris Bartee from VCU Health Systems.....the closest to the fault. O.K. Intermittent carrousel faults - two faults in one. The first being the carrousel position pot, intermittent after 3 years - found when obtaining both extender cards needed for C3 type carrousel/Bmag control cards - measuring the pot voltage at the board with a CRO. The second, W57 gantry patch to Aux electronics, chewed through by the water hose fitting - a common enough problem for Mr V to have a cable in stock. At particular gantry angles grounded the (-) terminal of the carrousel motor - allowed carrousel to be driven in only one direction by PWM signal. NB W57 runs pos R&T, buncher R&T, Angle R&T, Trim, Target, coll rotation and carrousel rotation. Any one of which can be grounded through the wearing of this cable - well worth a look at the back of the stand if any such problems present. Thanks to all who responded. Kind Regards, Peter Caunt Rad Onc Canberra, Australia. "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 10:55:07 -0500 From: ajengstl@gundluth.org Subject: Re: Varian Morning Warm-up printers Sender: owner-linac-eng@plato.aristotle.net To: Richie Klein Cc: linac , owner-linac-eng@plato.aristotle.net X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 5.0.12 |February 13, 2003) at 06/03/2004 11:07:43 AM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Greetings, I hooked up a HP laserjet 4P with no problems. Worked with whatever drivers Varian uses. Alan Engstler Gundersen Lutheran "Richie Klein" m> cc: Sent by: Subject: Varian Morning Warm-up printers owner-linac-eng@plato.ar istotle.net 06/03/04 08:12 AM Hello, Has anyone replaced the Varian supplied printer with a laser or ink-jet printer and is it working well? Older "C" series Clinacs used the HP Quiet Jet and the newer ones use the Okidata Microline 590. Any information would be appreciated. Richie Klein RS&A From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["4655" "Thursday" "3" "June" "2004" "11:45:42" "-0500" "Segovia, Luis E." "LSegovia@tmh.tmc.edu" nil "100" "UDN2943Z" nil nil nil "6" nil nil (number " " mark "U Segovia, Luis E. Jun 3 100/4655 " thread-indent "\"UDN2943Z\"\n") nil nil nil nil nil nil] nil) Date: Thu, 03 Jun 2004 11:45:42 -0500 From: "Segovia, Luis E." Subject: UDN2943Z Sender: owner-linac-eng@plato.aristotle.net To: 'Linac List' X-MS-TNEF-Correlator: X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_J6I7CMZjztkYBZxI9nJutA) Content-type: text/plain; charset=iso-8859-1 Hello list, Equipment: Siemens Primus, Mevatrons Assembly: Target Drive Would anyone in the US know a sourse for the OP amp motor driver used in the target drive assembly? It is made by Allegro microsystems UDN2943Z Thank you Luis Segovia ----------------------------------------- ____________________________________________________________________________________ ****CONFIDENTIALITY NOTICE**** This e-mail is the property of The Methodist Hospital and/or its relevant affiliates and may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient(or authorized to receive for the recipient), please contact the sender and delete all copies of the message. Thank you. --Boundary_(ID_J6I7CMZjztkYBZxI9nJutA) Content-type: application/ms-tnef Content-transfer-encoding: base64 eJ8+IiwQAQaQCAAEAAAAAAABAAEAAQeQBgAIAAAA5AQAAAAAAADoAAEIgAcAGAAAAElQTS5NaWNy b3NvZnQgTWFpbC5Ob3RlADEIAQWAAwAOAAAA1AcGAAMACwAtACoABABKAQEggAMADgAAANQHBgAD AAsALQAqAAQASgEBCYABACEAAAA0QUJERUU4QzNCRTVDNjQ5QUE2NzhGMEQwN0FDRDA0MgB7BwEE gAEACQAAAFVETjI5NDNaABMCAQ2ABAACAAAAAgACAAEDkAYAPAYAAC0AAAADAAGACCAGAAAAAADA AAAAAAAARgAAAABShQAAc3kBAB4AAoAIIAYAAAAAAMAAAAAAAABGAAAAAFSFAAABAAAABAAAADku MAALAAOACCAGAAAAAADAAAAAAAAARgAAAAAGhQAAAAAAAAMABIAIIAYAAAAAAMAAAAAAAABGAAAA AAGFAAAAAAAACwAGgAggBgAAAAAAwAAAAAAAAEYAAAAAA4UAAAAAAAALAAeACCAGAAAAAADAAAAA AAAARgAAAAAOhQAAAAAAAAMACIAIIAYAAAAAAMAAAAAAAABGAAAAABCFAAAAAAAAAwAKgAggBgAA AAAAwAAAAAAAAEYAAAAAEYUAAAAAAAADAAmACCAGAAAAAADAAAAAAAAARgAAAAAYhQAAAAAAAAIB CRABAAAAUwEAAE8BAAC4AQAATFpGdUH0GlEDAAoAcmNwZzEyNRYyAPgLYG4OEDAzM08B9wKkA+MC AGNoCsBzsGV0MCAHEwKAfQqBknYIkHdrC4BkNAxgDmMAUAsDC7UgSGVsyQkAIGwEAHQsCqIKhHEK gEVxdQUgB4ACMDpeIAYACJAVkQQgUAUQbQh1cywF0GV2YXR3A2AAgBSKQQQQFiACYHlSOgyCIFQK wGcRMCBSRAUQdmUUilcIYGyUZCAAcHkCIGUgC4AoIHRoG2BVBfBrbmJvB+BhIHMIYREgICcCEAXA G7JPUBsAbXDqIARgdAWxZBmyBcAWwH8JgBt2AZAZUx5TGwAYZT9dFIpJBUAEAB3gYQEAIGxieRFg E/BlCcAUEG1zDeADYHN5FFAWIBeLVYBETjI5NDNaFIriVBDwbmsgGzAMcBSZpkwVYAZCZ28SIGEU hAUR4QAocAAeAHAAAQAAAAkAAABVRE4yOTQzWgAAAAACAXEAAQAAABYAAAABxEmKNS+n0bHtzx5B uJ6dpci1dOXKAAALAAIAAQAAAAMACVkDAAAAAwDeP69vAABAADkAYM2KNYpJxAEDAPE/CQQAAB4A MUABAAAACQAAAExTRUdPVklBAAAAAAMAGkAAAAAAHgAwQAEAAAAJAAAATFNFR09WSUEAAAAAAwAZ QAAAAAADAP0/5AQAAAMAJgAAAAAAAwA2AAAAAAADAIAQ/////wIBRwABAAAALQAAAGM9VVM7YT0g O3A9TUhDUztsPUVYQ0gyLTA0MDYwMzE2NDU0MlotMzYxMDUwAAAAAAIB+T8BAAAAUgAAAAAAAADc p0DIwEIQGrS5CAArL+GCAQAAAAAAAAAvTz1UTUhDUy9PVT1UTUgvQ049UkVDSVBJRU5UUy9DTj1Q Uk9GU1ZDUy9DTj1MU0VHT1ZJQQAAAB4A+D8BAAAAEQAAAFNlZ292aWEsIEx1aXMgRS4AAAAAHgA4 QAEAAAAJAAAATFNFR09WSUEAAAAAAgH7PwEAAABSAAAAAAAAANynQMjAQhAatLkIACsv4YIBAAAA AAAAAC9PPVRNSENTL09VPVRNSC9DTj1SRUNJUElFTlRTL0NOPVBST0ZTVkNTL0NOPUxTRUdPVklB AAAAHgD6PwEAAAARAAAAU2Vnb3ZpYSwgTHVpcyBFLgAAAAAeADlAAQAAAAkAAABMU0VHT1ZJQQAA AABAAAcwlml+wIlJxAFAAAgwwIacNYpJxAEeAD0AAQAAAAEAAAAAAAAAHgAdDgEAAAAJAAAAVURO Mjk0M1oAAAAAHgA1EAEAAAA9AAAAPEJBQkNFQUM4REI5RDA0NEE5RDM2MjlCOUIxMzhDQzc0MEQ1 Q0FGREZAZXhjaDIudG1oLnRtYy5lZHU+AAAAAAsAKQAAAAAACwAjAAAAAAADAAYQ1JujYwMABxDH AAAAAwAQEAAAAAADABEQAAAAAB4ACBABAAAAZQAAAEhFTExPTElTVCxFUVVJUE1FTlQ6U0lFTUVO U1BSSU1VUyxNRVZBVFJPTlNBU1NFTUJMWTpUQVJHRVREUklWRVdPVUxEQU5ZT05FSU5USEVVU0tO T1dBU09VUlNFRk9SVEhFT1AAAAAAAgF/AAEAAAA9AAAAPEJBQkNFQUM4REI5RDA0NEE5RDM2MjlC OUIxMzhDQzc0MEQ1Q0FGREZAZXhjaDIudG1oLnRtYy5lZHU+AAAAAMY4 --Boundary_(ID_J6I7CMZjztkYBZxI9nJutA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 14:22:41 -0400 From: "Spencer, Kelly" Subject: Clinac 6100 STD 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 X-Babyl-Labels: Hello Folks, Sorry to bother everyone with a mundane question, but I have a need to know what the source to tray distance is for a Varian Clinac 6100 for block cutting purposes. I am unable to find the distance in the operator's or maintenance manuals. Using crude measuring tools (tape measure from isocenter), I calculate 60.7 cm. Can anyone confirm this? Thanks for your help. Kelly Kelly M. Spencer, MS DABMP Medical Physicist Moses Cone Regional Cancer Center Radiation Oncology Department 501 North Elam Avenue Greensboro, NC 27403 (336) 832-0631 kelly.spencer@mosescone.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["7586" "Thursday" "3" "June" "2004" "11:49:05" "-0600" "Massimo Giovannetti" "massimog@CancerBoard.ab.ca" nil "239" "Re: UDN2943Z" nil nil nil "6" nil nil (number " " mark "U Massimo Giovannet Jun 3 239/7586 " thread-indent "\"Re: UDN2943Z\"\n") nil nil nil nil nil nil] nil) Date: Thu, 03 Jun 2004 11:49:05 -0600 From: Massimo Giovannetti Subject: Re: UDN2943Z Sender: owner-linac-eng@plato.aristotle.net To: "Segovia, Luis E." Cc: 'Linac List' X-Accept-Language: en-us, en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hi Luis, I know you are looking for US vendors but keep this information handy. The part you are looking for is discontinued so you will have to seek companies that deal with hard to find IC's. The company we use is AMS Alltronics located in Ontario. Their website is www.hard-to-find.net. Presently they have 84 in stock according to the site. You will have to call them and they'll fax you a quote with minimum order and delivery time. Good luck! Massimo Giovannetti Tom Baker Cancer Centre Calgary, Alberta, Canada Segovia, Luis E. wrote: > Hello list, > > Equipment: Siemens Primus, Mevatrons > > Assembly: Target Drive > > Would anyone in the US know a sourse for the OP amp motor driver used in the > target drive assembly? > > It is made by Allegro microsystems > > UDN2943Z > > Thank you > > Luis Segovia > > > > ----------------------------------------- > ____________________________________________________________________________________ > ****CONFIDENTIALITY NOTICE**** > This e-mail is the property of The Methodist Hospital and/or its relevant affiliates and may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient(or authorized to receive for the recipient), please contact the sender and delete all copies of the message. Thank you. This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 14:39:31 -0400 (EDT) From: GARRYANGEL@aol.com Subject: USED KLYSTRON 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 X-Babyl-Labels: --Boundary_(ID_znSCuY+Jky7sXLBeCcLLUw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello Everyone: I am looking for a good "late model" used Varian Klystron. If anyone can help please email specifics on the tube. Please send mfr. date, ser #, equipment used in, and of course, cost. Thanks in advance. Garry --Boundary_(ID_znSCuY+Jky7sXLBeCcLLUw) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello Everyone:

I am looking for a good "late model" used Varian Klystron. If anyo= ne can help please email specifics on the tube. Please send mfr. date, ser #= , equipment used in, and of course, cost.

Thanks in advance.

Garry

--Boundary_(ID_znSCuY+Jky7sXLBeCcLLUw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 03 Jun 2004 14:35:37 -0500 From: Shoan Edwards Subject: in room patient monitoring Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 Content-Class: urn:content-classes:message Thread-Topic: in room patient monitoring thread-index: AcRJoenrsXj63tweQRGLpGhLg7h0ug== X-OriginalArrivalTime: 03 Jun 2004 19:40:55.0218 (UTC) FILETIME=[AF8FC120:01C449A2] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_xYMIr7iHTsdpA+w+YXmnmg) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Hello =20 Just looking for advice for a good replacement camera for our in room patient monitoring. We are currently using a Panasonic camera not sure the model off hand but it looks like R2-D2 stuck to the ceiling upside down. We need the typical pan tilt zoom and iris controls any suggestions would be great thanks =20 Shoan Edwards --Boundary_(ID_xYMIr7iHTsdpA+w+YXmnmg) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable

Hello

Just looking for advice for a good replacement camera = for our in room patient monitoring. We are currently using a Panasonic = camera not sure the model off hand but it looks like R2-D2 stuck to the ceiling = upside down. We need the typical pan tilt zoom and iris controls any = suggestions would be great thanks

Shoan Edwards

--Boundary_(ID_xYMIr7iHTsdpA+w+YXmnmg)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 04 Jun 2004 06:25:07 +0800 From: "James.Song" Subject: Elekta Database Problem? Sender: owner-linac-eng@plato.aristotle.net To: =?utf-8?B?5Yqg6YCf5Zmo6K6o6K6657uE?= X-TEBIE-Originating-IP: [211.167.200.117] X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA04430 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: Hi Group: last night, we can't use Preminum therapy in Elekta Precise. The System note: The following process has terminated:'ILR Server' Applets will be terminated and the system will be shutdown. We has about 90 patients in the database.(RTD 4.1.0), I delete some old patients. The system is ok. but 3 hours later,same problem is coming. Any one Know how to do? Thanks in advance James.Song Engineer&MCSE Radiological Physicist Dept. of Radiation Oncology, C.A.M.S Cancer(Institute) Hospital Chinese Academy of Medical Science Office: 86-10-67781331ext8292 E-mail: jamessong@263.net From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["529" "Thursday" "3" "June" "2004" "21:21:45" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "14" "Re: in room patient monitoring" nil nil nil "6" nil nil (number " " mark "U Randy.McVittie@lr Jun 3 14/529 " thread-indent "\"Re: in room patient monitoring\"\n") nil nil nil nil nil nil] nil) Date: Thu, 03 Jun 2004 21:21:45 -0400 From: Randy.McVittie@lrcc.on.ca Subject: Re: in room patient monitoring Sender: owner-linac-eng@plato.aristotle.net To: Shoan Edwards 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 X-Babyl-Labels: The Panasonic WV-CU161C controller and the the Panasonic WV-CS564 pan/tilt/zoom camera is a pretty good combination. The controller can talk to the camera over the video cable or you can run separate RS485 control lines to the camera. I think that 1 fixed camera and 1 pan/tilt/zoom is a good combination, costs a bit more than 2 fixed cameras but it saves time in the future when there is a patient that has to be monitored more closely and you have to scramble to find a camera, lens and cables to make it all work. Randy From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["1067" "Friday" "4" "June" "2004" "08:45:53" "+0200" "Thomas Reinbeck" "thomasreinbeck@vinzenz.de" nil "39" "Antw: UDN2943Z" nil nil nil "6" nil nil (number " " mark "U Thomas Reinbeck Jun 4 39/1067 " thread-indent "\"Antw: UDN2943Z\"\n") nil nil nil nil nil nil] nil) Date: Fri, 04 Jun 2004 08:45:53 +0200 From: Thomas Reinbeck Subject: Antw: UDN2943Z Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, LSegovia@tmh.tmc.edu Content-disposition: inline Virus-Scanned: by Marienhospital-Stuttgart X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA09334 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Luis, try this (thanks to google) http://www.usbid.com/catalog1/page.cfm/294/1 or http://www.freetradezone.com/index.html Hope this helps From Germany Thomas >>> "Segovia, Luis E." 03.06.2004 18.45 Uhr >>> Hello list, Equipment: Siemens Primus, Mevatrons Assembly: Target Drive Would anyone in the US know a sourse for the OP amp motor driver used in the target drive assembly? It is made by Allegro microsystems UDN2943Z Thank you Luis Segovia ----------------------------------------- ____________________________________________________________________________________ ****CONFIDENTIALITY NOTICE**** This e-mail is the property of The Methodist Hospital and/or its relevant affiliates and may contain confidential and privileged material for the sole use of the intended recipient(s). Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient(or authorized to receive for the recipient), please contact the sender and delete all copies of the message. Thank you. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["1021" "Friday" "4" "June" "2004" "09:13:27" "-0500" "Tirabassi Michael" "Michael.Tirabassi@HCAHealthcare.com" nil "34" "RE: in room patient monitoring" nil nil nil "6" nil nil (number " " mark "U Tirabassi Michael Jun 4 34/1021 " thread-indent "\"RE: in room patient monitoring\"\n") nil nil nil nil nil nil] nil) Date: Fri, 04 Jun 2004 09:13:27 -0500 From: Tirabassi Michael Subject: RE: in room patient monitoring Sender: owner-linac-eng@plato.aristotle.net To: "Linac list (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Good morning! Speaking of cameras. Is there any requirement as to the number of cameras needed to monitor the patient. Obviously you need at least one but is that the minimum. Is there any spec that says you should have a certain #. Mike T. Rapides Cancer Center -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Thursday, June 03, 2004 8:22 PM To: Shoan Edwards Cc: linac-eng@plato.aristotle.net Subject: Re: in room patient monitoring The Panasonic WV-CU161C controller and the the Panasonic WV-CS564 pan/tilt/zoom camera is a pretty good combination. The controller can talk to the camera over the video cable or you can run separate RS485 control lines to the camera. I think that 1 fixed camera and 1 pan/tilt/zoom is a good combination, costs a bit more than 2 fixed cameras but it saves time in the future when there is a patient that has to be monitored more closely and you have to scramble to find a camera, lens and cables to make it all work. Randy From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["2833" "Friday" "4" "June" "2004" "09:35:15" "-0500" "Chris Dyke" "Chris.Dyke@cancercare.mb.ca" nil "92" "Re: in room patient monitoring" nil nil nil "6" nil nil (number " " mark "U Chris Dyke Jun 4 92/2833 " thread-indent "\"Re: in room patient monitoring\"\n") nil nil nil nil nil nil] nil) Date: Fri, 04 Jun 2004 09:35:15 -0500 From: Chris Dyke Subject: Re: in room patient monitoring 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 X-Babyl-Labels: We have the same R2D2 camera. The model number is WV-CS854B. Just wondering why you are replacing it. We've had our cameras installed for just over a year and are experiencing image degredation especially when the room lights are off. Lots of specs on the screen. It has very good pan, tilt and zoom function, so it would be a shame to go back to the fixed style cameras with a zoom lens and a separate pan and tilt assembly. thanks >>> "Shoan Edwards" 06/03/04 02:35PM >>> Hello Just looking for advice for a good replacement camera for our in room patient monitoring. We are currently using a Panasonic camera not sure the model off hand but it looks like R2-D2 stuck to the ceiling upside down. We need the typical pan tilt zoom and iris controls any suggestions would be great thanks Shoan Edwards Chris Dyke Electronic Technologist Dept of Nuclear Electronics CancerCare Manitoba (204)787-2192 (204)775-1684 Fax From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 04 Jun 2004 09:01:56 -0600 From: scot thiesson Subject: Re: in room patient monitoring In-reply-to: <39A90AC123CB9D428821E2BC273E73CD01F866DB@ftwex03.hca.corpad.net> Sender: owner-linac-eng@plato.aristotle.net To: Tirabassi Michael Cc: "Linac list (E-mail)" X-Accept-Language: en-us, en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Tirabassi Michael wrote: >Good morning! > >Speaking of cameras. Is there any requirement as to the number of cameras >needed to monitor the patient. Obviously you need at least one but is that >the minimum. Is there any spec that says you should have a certain #. > > >Mike T. >Rapides Cancer Center > >-----Original Message----- >From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] >Sent: Thursday, June 03, 2004 8:22 PM >To: Shoan Edwards >Cc: linac-eng@plato.aristotle.net >Subject: Re: in room patient monitoring > > > > >The Panasonic WV-CU161C controller and the the Panasonic WV-CS564 >pan/tilt/zoom >camera is a pretty good combination. >The controller can talk to the camera over the video cable or you can run >separate RS485 control lines to the camera. > >I think that 1 fixed camera and 1 pan/tilt/zoom is a good combination, costs >a >bit more than 2 fixed cameras but it saves time in the future >when there is a patient that has to be monitored more closely and you have >to >scramble to find a camera, lens and cables to make it all work. > >Randy > > > > Probably not but I have found over the years that one on each side of the bed capable of being tilted and zoomed to most machine structures is a great help when trouble shooting! Scot Thiesson ABCC Regina From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["22132" "Friday" "4" "June" "2004" "12:34:44" "-0400" "Michael Nordin" "mnordin@mail.mcg.edu" nil "617" "mmlc vxworks commands" nil nil nil "6" nil nil (number " " mark "U Michael Nordin Jun 4 617/22132 " thread-indent "\"mmlc vxworks commands\"\n") nil nil nil nil nil nil] nil) Date: Fri, 04 Jun 2004 12:34:44 -0400 From: Michael Nordin Subject: mmlc vxworks commands 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 X-Babyl-Labels: Group, Is there a clesr screen command for vxworks? Mike Nordin From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 04 Jun 2004 13:48:32 -0300 From: Greg MacKinnon Subject: RE: in room patient monitoring In-reply-to: Sender: owner-linac-eng@plato.aristotle.net To: 'Shoan Edwards' Cc: "LinacEng (E-mail)" Importance: Normal X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 (Normal) X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_IwLIK3CdCyy1c4Bp+e3nAA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Hi Here at our centre we use Sony color video camera (model SSC-C104) with a Sony Trinitron monitor. The camera pan, tilt, zoom & iris is controlled by a PELCO model MPTAZ24DT. No problems with the units at all. __________________________________________ 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 -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Shoan Edwards Sent: Thursday, June 03, 2004 4:36 PM To: linac-eng@plato.aristotle.net Subject: in room patient monitoring Hello Just looking for advice for a good replacement camera for our in room patient monitoring. We are currently using a Panasonic camera not sure the model off hand but it looks like R2-D2 stuck to the ceiling upside down. We need the typical pan tilt zoom and iris controls any suggestions would be great thanks Shoan Edwards --Boundary_(ID_IwLIK3CdCyy1c4Bp+e3nAA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable

Here=20 at our centre we use Sony color video camera (model SSC-C104) with = a Sony=20 Trinitron monitor. The camera pan, tilt, zoom & iris is controlled = by a=20 PELCO model MPTAZ24DT. No problems with the units at = all.

__________________________________________
Greg MacKinnon,=20 C.E.T.
Linear Accelerator Service Technologist
Cape Breton Cancer=20 Centre
1482 George Street
Sydney, Nova Scotia, Canada
B1P = 1P3
tel:=20 (902) 567-8076
fax: (902) 567-8075
email:=20 mackinnongreg@cbdha.nshealth.ca

-----Original Message-----
From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Shoan=20 Edwards
Sent: Thursday, June 03, 2004 4:36 PM
To:=20 linac-eng@plato.aristotle.net
Subject: in room patient=20 monitoring

Hello

Just looking for advice = for a good=20 replacement camera for our in room patient monitoring. We are = currently=20 using a Panasonic camera not sure the model off hand but it looks like = R2-D2=20 stuck to the ceiling upside down. We need the typical pan tilt = zoom and=20 iris controls any suggestions would be great thanks

Shoan=20 Edwards

--Boundary_(ID_IwLIK3CdCyy1c4Bp+e3nAA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 07 Jun 2004 09:52:28 -0400 From: "Maddox, Buford J" Subject: RE: in room patient monitoring Sender: owner-linac-eng@plato.aristotle.net To: 'Tirabassi Michael' , "Linac list (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: You always need to be able to see the patient. One camera on center may not be able to see the patients' face, so we use two cameras at about 15 deg angles. One may be obscured by the gantry, but then the other can see. Not sure if there is a code that requires two, but this requirement is always there from the nurses and anesthesiologists. In some rooms medical staff have required these two plus one on center, for anesthesized pediatric cases. All our cameras are motorized per their requirements to be able to zoom in on the face or breathing. Besides the need to observe the patient, prevention of collisions is becoming a strong reason for excellent viewing, due to increased use of procedures and software where is allowed to move without a person in the room. Our Quality Assurance committee is reviewing the conditions under which this is allowed, and I would be interested in any rules, regulations, and training at your site regarding remotely controlled movement. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Tirabassi Michael Sent: Friday, June 04, 2004 10:13 AM To: Linac list (E-mail) Subject: RE: in room patient monitoring Good morning! Speaking of cameras. Is there any requirement as to the number of cameras needed to monitor the patient. Obviously you need at least one but is that the minimum. Is there any spec that says you should have a certain #. Mike T. Rapides Cancer Center -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Thursday, June 03, 2004 8:22 PM To: Shoan Edwards Cc: linac-eng@plato.aristotle.net Subject: Re: in room patient monitoring The Panasonic WV-CU161C controller and the the Panasonic WV-CS564 pan/tilt/zoom camera is a pretty good combination. The controller can talk to the camera over the video cable or you can run separate RS485 control lines to the camera. I think that 1 fixed camera and 1 pan/tilt/zoom is a good combination, costs a bit more than 2 fixed cameras but it saves time in the future when there is a patient that has to be monitored more closely and you have to scramble to find a camera, lens and cables to make it all work. Randy From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 07 Jun 2004 22:54:42 +0800 From: "James.Song" Subject: Re: Clinac 6100 STD Sender: owner-linac-eng@plato.aristotle.net To: "Spencer, Kelly" Cc: =?utf-8?B?5Yqg6YCf5Zmo6K6o6K6657uE?= X-TEBIE-Originating-IP: [211.167.200.117] X-MSMail-Priority: Normal x-mimeole: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_lz+Ss2XW6gjJpVjrfST4/w) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 7BIT Reference from CMS library. NOTE: CMS can not guarantee the accuracy of the values reported in these tables. Independent verification is recommended. I found it correctly as Varian advertisement. James.Song Engineer & MCSE Radiological Physicist Dept. of Radiation Oncology, C.A.M.S Cancer (Institute) Hospital Chinese Academy of Medical Science Office: 86-10-67781331ext8292 E-mail: jamessong@263.net ----- Original Message ----- From: "Spencer, Kelly" To: Sent: Friday, June 04, 2004 2:22 AM Subject: Clinac 6100 STD > Hello Folks, > > Sorry to bother everyone with a mundane question, but I have a need to know > what the source to tray distance is for a Varian Clinac 6100 for block > cutting purposes. I am unable to find the distance in the operator's or > maintenance manuals. Using crude measuring tools (tape measure from > isocenter), I calculate 60.7 cm. Can anyone confirm this? > > Thanks for your help. > > Kelly > > > Kelly M. Spencer, MS DABMP > Medical Physicist > Moses Cone Regional Cancer Center > Radiation Oncology Department > 501 North Elam Avenue > Greensboro, NC 27403 > (336) 832-0631 > kelly.spencer@mosescone.com > > --Boundary_(ID_lz+Ss2XW6gjJpVjrfST4/w) Content-type: MESSAGE/RFC822; name="Varian Head Geometry Params.mht" Date: Mon, 7 Jun 2004 22:48:21 +0800 From: <�� Microsoft Internet Explorer 5 ��ꁡ��?> Subject: Varian Head Geometry Params MIME-version: 1.0 Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 7BIT Content-Location: file://E:\????\CMS\BMG4.0\XiO_BMG\Libraries\HeadGeom\VarHeadGeom.htm X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Varian Head Geometry Params

Varian Linear Accelerator Head Geometry Parameters

	6/100 Non-IJ	6/100 IJ 600C	600C	CL18 CL1800	CL1800 IJ 2100C	2100C	CL2500 2500C	21EX	21EX
	No MLC	*No MLC*	*MLC*	Non-IJ No MLC	*No MLC*	*MLC*	*No MLC*	*No MLC*	*MLC*
Target Distance to:
Eff. Source to Collimator	28.9	36.2	36.2	36.3	36.2	36.2	36.6	36.2	36.2
Middle of Upper Jaw	24.1	31.8	31.8	31.9	31.8	31.8	32.3	31.8	31.8
Middle of Lower Jaw	33.6	40.6	40.6	40.6	40.6	40.6	40.8	40.6	40.6
Middle of MLC Leaf	*******	*******	50.9	*******	*******	50.9	*******	*******	50.9
Wedge Tray (Upper)	42.1	49.2	57.4	49.2	49.2	57.4	52.9	49.2	57.4
Wedge Tray (Lower)	*******	*******	69.2	*******	*******	69.2	*******	*******	69.2
Block Tray (Standard)	57.7	61.0	64.8	64.8	61.0	64.8	64.7	64.8	64.8
Block Tray (Option)	64.8	64.8	*******	*******	64.8	*******	*******	*******	*******

--Boundary_(ID_lz+Ss2XW6gjJpVjrfST4/w)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 07 Jun 2004 23:12:57 +0800 From: "James.Song" Subject: Re: Elekta Database Problem? Sender: owner-linac-eng@plato.aristotle.net To: =?utf-8?B?5Yqg6YCf5Zmo6K6o6K6657uE?= X-TEBIE-Originating-IP: [211.167.200.117] X-MSMail-Priority: Normal x-mimeole: Produced By Microsoft MimeOLE V6.00.2800.1106 X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id KAA03893 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: ----- Original Message ----- From: "James.Song" To: "Chris Forrest" Sent: Monday, June 07, 2004 11:12 PM Subject: Re: Elekta Database Problem? Hi Group: My hospital only have a Precise. So it is SLN (Single linac Network),no CDN. I note some prescriptions was wrong: 1. Operators edit some prescriptions as ALL LINAC. But we have only one . 2. Some prescriptions which import from Pinnacle 6.2b DICOM-RT files. Some fractions no DOS. But we haved used system half of year. That's no any problems. I delete all wrong prescriptions, correct some prescriptions. Now That's is OK. Can anyone tell me why? James.Song Engineer & MCSE Radiological Physicist Dept. of Radiation Oncology, C.A.M.S Cancer (Institute) Hospital Chinese Academy of Medical Science Office: 86-10-67781331ext8292 E-mail: jamessong@263.net ----- Original Message ----- From: "Chris Forrest" To: Sent: Friday, June 04, 2004 3:27 PM Subject: Re: Elekta Database Problem? Have you tried rebooting server? Chris >>> "James.Song" 03/06/2004 23:25:07 >>> Hi Group: last night, we can't use Preminum therapy in Elekta Precise. The System note: The following process has terminated:'ILR Server' Applets will be terminated and the system will be shutdown. We has about 90 patients in the database.(RTD 4.1.0), I delete some old patients. The system is ok. but 3 hours later,same problem is coming. Any one Know how to do? Thanks in advance James.Song Engineer&MCSE Radiological Physicist Dept. of Radiation Oncology, C.A.M.S Cancer(Institute) Hospital Chinese Academy of Medical Science Office: 86-10-67781331ext8292 E-mail: jamessong@263.net From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["61636" "Wednesday" "9" "June" "2004" "14:58:50" "-0400" "Gohier, Georges" "ggohier@ottawahospital.on.ca" nil "1549" "Siemens hand controller" nil nil nil "6" nil nil (number " " mark "U Gohier, Georges Jun 9 1549/61636 " thread-indent "\"Siemens hand controller\"\n") nil nil nil nil nil nil] nil) Date: Wed, 09 Jun 2004 14:58:50 -0400 From: "Gohier, Georges" Subject: Siemens hand controller Sender: owner-linac-eng@plato.aristotle.net To: "Linac Engineers (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: I am looking for the manufacturer of the Siemens Mevatron hand controller connector. I need both the male and female part numbers. Any information would be greatly appreciated. Thanks. Georges Gohier Ottawa Hospital Integrated Cancer Care Program From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 09 Jun 2004 14:52:51 -0500 From: chusmith@mdanderson.org Subject: RSEA Meeting Information Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIMETrack: Serialize by Router on UTM-MAIL05A/HOU/UTMDACC(Release 5.0.11 |July 24, 2002) at 06/09/2004 02:53:24 PM, Serialize complete at 06/09/2004 02:53:24 PM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multipart message in MIME format. --Boundary_(ID_Le85CtGar9eM39DhxQivrA) Content-type: text/plain; charset=us-ascii Greetings, There is still time to recieve discounted registration for the 3rd Annual RSEA meeting to be held 24-25 July in Pittsburgh, Pa. Discounted Registration will end tonight at 11:59 EDT. June 10th the registration fee increases to $180.00. Details and registration are available at: http://www.aapm.org/meetings/04AM/ Information is also available at the RSEA website found at: http://linaceng.org/rsea/. For more information please contact me at chusmith@mdanderson.org Regards, Chuck Smith --Boundary_(ID_Le85CtGar9eM39DhxQivrA) Content-type: text/html; charset=us-ascii
Greetings,

There is still time to recieve discounted registration for the 3rd Annual RSEA meeting to be held 24-25 July in Pittsburgh, Pa. Discounted Registration will end tonight at 11:59 EDT. June 10th the registration fee increases to $180.00.

Details and registration are available at:
http://www.aapm.org/meetings/04AM/

Information is also available at the RSEA website found at: http://linaceng.org/rsea/.

For more information please contact me at chusmith@mdanderson.org

Regards,
Chuck Smith
--Boundary_(ID_Le85CtGar9eM39DhxQivrA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 09 Jun 2004 14:32:48 -0700 From: JamesR.Wilson@providence.org Subject: Varian 2100EX Bmag Shunt Voltages Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Importance: normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 content-class: urn:content-classes:message Thread-Topic: Varian 2100EX Bmag Shunt Voltages Thread-Index: AcROaU9BfzW3/hw7Q6KFqndJR5lRDw== X-OriginalArrivalTime: 09 Jun 2004 21:32:48.0580 (UTC) FILETIME=[4F840040:01C44E69] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_l5U1cLKoo0+3fyYQU7TpGQ) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Is there a convenient place to measure the Bmag shunt voltages on the newer "EX" machines?? On my old machines of the past there were jacks right on the stand frame under the supply. Where would I measure them now?. Thanks,=20 =20 Jim Wilson Clinical Engineering Providence Health Systems Portland OR =20 DISCLAIMER: This message is intended for the sole use of the addressee, and may = contain information that is privileged, confidential and exempt from = disclosure under applicable law. If you are not the 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 this message. --Boundary_(ID_l5U1cLKoo0+3fyYQU7TpGQ) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable

Is there a convenient place to measure the Bmag shunt voltages on the newer “EX” machines?? On my old = machines of the past there were jacks right on the stand frame under the supply. = Where would I measure them now?. Thanks,

Jim Wilson

Clinical Engineering

Providence Health Systems

Portland = OR

DISCLAIMER:
This message is intended for the sole use of = the addressee, and may contain information that is privileged, = confidential and exempt from disclosure under applicable law. If you are = not the 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 this = message. --Boundary_(ID_l5U1cLKoo0+3fyYQU7TpGQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 09 Jun 2004 16:04:14 -0600 From: Massimo Giovannetti Subject: Re: Varian 2100EX Bmag Shunt Voltages Sender: owner-linac-eng@plato.aristotle.net To: JamesR.Wilson@providence.org Cc: linac-eng@plato.aristotle.net X-Accept-Language: en-us, en X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hi James, There are test points on the front edge of the Carr, Mode and Bmag PCB in the Aux Electronics labelled I+ and I- that you can measure from. Massimo Tom Baker Cancer Centre Calgary, Alberta JamesR.Wilson@providence.org wrote: > Is there a convenient place to measure the Bmag shunt voltages on the > newer ?EX? machines?? On my old machines of the past there were jacks > right on the stand frame under the supply. Where would I measure them > now?. Thanks, > > > > Jim Wilson > > Clinical Engineering > > Providence Health Systems > > Portland OR > > > > DISCLAIMER: > This message is intended for the sole use of the addressee, and may > contain information that is privileged, confidential and exempt from > disclosure under applicable law. If you are not the 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 this message. > This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 16:06:19 +1000 From: "Caunt, Peter" Subject: Linac - electricians 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 X-Babyl-Labels: Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 13:32:19 +0100 From: Kerry Clark Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: "'Caunt, Peter'" , "Linac Eng (E-mail)" X-VirusChecked: Checked X-Env-Sender: Kerry.Clark@Cromwellhospital.com X-Msg-Ref: server-5.tower-14.messagelabs.com!1086870638!7879374 X-StarScan-Version: 5.2.10; banners=cromwellhospital.com,-,- X-Originating-IP: [217.37.197.245] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Peter, It seems like a valid question for the group to me, I've seen it before where the paper shufflers can't comprehend the need to pay a specialist to keep complicated machines going and within tight tolerances. You look bad if the machines are not working, you look bad if you have nothing to do because the machines are working. A few ideas; I'm not sure about the Aussie standards for medical engineering but surely you can't let anyone repair medical equipment without proper training and supervision, hence the need for a specialist "linac engineer". Although I have met some very capable sparkies I'm sure the areas of RF engineering and data communications would leave them lost. Does this mean they would have to contract plumbers as well for any problem with water cooling systems? Can you sell them the comparative costs of downtime/ full manufacturers service contracts? have fun with this one Kerry Cromwell Hospital London -----Original Message----- From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au] Sent: 10 June 2004 07:06 To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________ ************************************************************************* Privileged or Confidential Information may be contained in this message. If you are not the addressee of this message (or responsible for its delivery to the addressee), you may not review or copy it, deliver it to anyone else or use information in it. In such a case, you should destroy this message and kindly notify the sender by reply email. Internet communications are not secure and therefore the Cromwell Hospital does not accept legal responsibility for the contents of this message. Although the Cromwell Hospital operates anti-virus programs, it does not accept responsibility for any damage whatsoever that is caused by viruses being passed. Opinions, conclusions and other information in this message that do not relate to the official business of the Cromwell Hospital are neither given nor endorsed by it. Thank you. ************************************************************************* ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 09:03:55 -0500 From: Tirabassi Michael Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: "'Caunt, Peter'" Cc: "Linac list (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Are you asking if it would be appropriate for an electrician to work on a linac? Before I got into the medical field I worked 8.5 years as an industrial/commercial electrician. Therefore I feel somewhat qualified to comment on this question. All electricians are not created equal. Having said that, I certainly know that an individual who is an electrician could possess the understanding and capability to "service" a linac. Someone with motor control, high voltage, process controller experience etc.Someone whose background would help them understand the workings of a linac. But as we used to say & I have witnessed personally, some "electricians" know just enough to be dangerous! Considering the "nature" of a linac I would think that the role of a general "electrician" in regards to servicing a linac would stop at the ac line inputs in the modulator. Mike T. Rapides Cancer Center -----Original Message----- From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au] Sent: Thursday, June 10, 2004 1:06 AM To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 09:07:52 -0500 From: "Martin, Kevin" Subject: FW: Siemens fluctuating PFN... Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Importance: normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Content-Class: urn:content-classes:message Thread-Topic: Siemens fluctuating PFN... thread-index: AcRO81pFaCkXJ511TxGkfQU2REGjyAAAC0Lg X-OriginalArrivalTime: 10 Jun 2004 14:07:52.0178 (UTC) FILETIME=[51A21520:01C44EF4] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_jXoauuy5R95rGXjyr2R/KA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable =20 Dear lurkers: I have a KD-2 with 6 - 15X....5 thru 21e Twice a day I have to adjust the pfn to stabilize the dose pulse =3D higher then lower ( dose pulse drops from 5 to 2.5 volts) If not I'll get dose rate errors on =20 15x and 6,9,and 12 e....6X and higher electrons are ok and require no adjustments... Symptom takes a couple of hours to happen but are very consistent.. To date I have replaced the Fc # 4 beam control..F/D converters #3,4 ( G32)....Trigger A...B...Klystron Interface pcb...and master clock I have monitored the pfn voltage on the klystron interface pcb (tp4) and consistently fluctuates approx. .1 to .15 volts higher and lower to cause the dose rate errors=20 (15x-1.25 volts ok however will drift to 1.35 volts -dose rates) And so it goes I adjust the pfn higher then lower changing parts as I go and I have found my self thinking about blowing up this thing ... a couple of times...just kidden..hhmmmmm So is there some feedback coming back from the modulator that can be affecting / causing this problem... ps..I have also adjusted the filament voltage / and RF input from 40 watts to 60 to 80 and back to 60 with no change..=20 All power supplies have been monitored and appear stable ..=20 =20 Any ideas..I'll share the result with the list of course.. thanks Kevin DISCLAIMER: This electronic message, including any attachments, is confidential and = intended solely for use of the intended recipient(s). This message may = contain information that is privileged or otherwise protected from = disclosure by applicable law. Any unauthorized disclosure, = dissemination, use or reproduction is strictly prohibited. If you have = received this message in error, please delete it and notify the sender = immediately. --Boundary_(ID_jXoauuy5R95rGXjyr2R/KA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

Dear lurkers:

I have a KD-2 with 6 - 15X....5 thru=20 21e

Twice a day I=20 have to adjust the pfn to stabilize the dose pulse =3D higher then lower ( dose pulse drops from 5 to 2.5 = volts) If=20 not I'll get dose rate errors on

15x and=20 6,9,and 12 e....6X and higher electrons are ok and require no=20 adjustments...

Symptom takes a couple of hours to = happen=20 but are very=20 consistent..

To = date I have=20 replaced the Fc # 4 beam = control..F/D=20 converters #3,4 ( G32)....Trigger A...B...Klystron Interface pcb...and = master=20 clock

I have = monitored the=20 pfn voltage on the klystron interface pcb (tp4) and consistently = fluctuates=20 approx. .1 to .15 volts higher and lower to cause the dose rate errors=20

(15x-1.25 volts ok=20 however will drift to 1.35 volts -dose rates)

And so it goes=20 I adjust the pfn higher then lower changing parts as I go and I have = found my=20 self thinking about blowing up this thing ... a=20 couple of times...just kidden..hhmmmmm

So is there some feedback coming back from = the=20 modulator that can be affecting / causing this=20 problem...

ps..I have also adjusted the filament = voltage / and RF=20 input from 40 watts to 60 to 80 and back to 60 with no=20 change..

All=20 power supplies have been monitored and appear stable=20 ..

Any ideas..I'll share the result with the = list of=20 course..

thanks =20 Kevin

DISCLAIMER:
This = electronic message, including any attachments, is confidential and = intended solely for use of the intended recipient(s). This message may = contain information that is privileged or otherwise protected from = disclosure by applicable law. Any unauthorized disclosure, = dissemination, use or reproduction is strictly prohibited. If you have = received this message in error, please delete it and notify the sender = immediately. --Boundary_(ID_jXoauuy5R95rGXjyr2R/KA)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 14:16:34 +0100 From: Graham Chalmers Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: "'Caunt, Peter'" , "Linac Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_wbqfyYPMbGGRbexgM7D6BQ) Content-type: text/plain; CHARSET=US-ASCII Dear Peter It seems to me that you need to clearly differentiate the skills that are required to be a good LA engineer and those that an electrician on contract might have. It is worth stressing all the different aspects of the machine's complex systems you want to cover The former would be highly skilled at maintaining highly complex and patient critical equipment consisting of high precision mechanical e.g MLC technology, microwave, vacuum, HT and computing equipment as well as skills and responsibilities in quality assuring the machine, any repairs made, its calibration and to some extent its acceptability for patient treatment. The latter person, if I understand your terminology, would not have this range of expertise. No disrespect to any contract electricians but in general a person who does mains wiring, changes light bulbs and does basic plant repairs may not typically have the range of skills or knowledge that I would anticipate a from a good LA technician. I have seen on interviewing for 'electronics technicians' the difference between those who understand electronics and those who 'know all about electronics' because they have installed a CCTV system Best wishes Graham Chalmers Radiotherapy Physics University Hospital Birmingham NHS Trust Birmingham B15 2TH 0121-627-2266 -----Original Message----- From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au] Sent: 10 June 2004 07:06 To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ DISCLAIMER: This e-mail contains proprietary information some or all of which may be confidential or legally privileged. It is for the exclusive use of the intended recipient(s) only. If an addressing or transmission error has misdirected this e-mail and you are not the intended recipient(s), please notify the author by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely on this e-mail, as this may be unlawful. --Boundary_(ID_wbqfyYPMbGGRbexgM7D6BQ) Content-type: text/html Content-transfer-encoding: quoted-printable RE: Linac - electricians

Dear Peter

It seems to me that you need to clearly differentiate = the skills that are required to be a good LA engineer and those that an = electrician on contract might have.

It is worth stressing all the different aspects of = the machine's complex systems you want to cover

The former would be highly skilled at maintaining = highly complex and patient critical equipment consisting of high = precision mechanical e.g MLC technology, microwave, vacuum, HT and = computing equipment as well as skills and responsibilities in quality = assuring the machine, any repairs made, its calibration and to some = extent its acceptability for patient treatment.

The latter person, if I understand your terminology, = would not have this range of expertise.

No disrespect to any contract electricians but in = general a person who does mains wiring, changes light bulbs and does = basic plant repairs may not typically have the range of skills or = knowledge that I would anticipate a from a good LA technician. I have = seen on interviewing for 'electronics technicians' the difference = between those who understand electronics and those who 'know all about = electronics' because they have installed a CCTV system

Best wishes

Graham Chalmers

Radiotherapy Physics

University Hospital Birmingham NHS Trust

Birmingham B15 2TH

0121-627-2266

-----Original Message-----
From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au= ]
Sent: 10 June 2004 07:06
To: Linac Eng (E-mail)
Subject: Linac - electricians

Listmembers,
&nb= sp; &nb= sp; Apologies for this non-machine request but I believe
it is a linac-eng question.

Had discussions recently with some government types = regarding radiotherapy
"engineering" support services and the = question posed concerns the role of a
"linac engineer" and what comparative = service would be provided if you only
had electricians on contract.

While somewhat of a devils advocate question, it does = draw out the essential
characteristics of the job and requires an = explanation in basic terms.

Any input to assist in preparing a response would be = appreciated.

I will offer my email address as an option to those = who are concerned about
the relevance of the request to the linac-eng = group.

Kind Regards,

Peter Caunt
Radiation Oncology
Canberra Hospital
Australia.

Peter.Caunt@act.gov.au

"Important: This transmission is intended only = for the use of the addressee
and may contain confidential or legally privileged = information.
If you are not the intended recipient, you are = notified that any use or
dissemination of this communication is strictly = prohibited. If you receive
this transmission in error please notify the author = immediately and delete
all copies of this transmission."

---------------------------------------------------------------= -------------
------------------------------------------
This email, and any attachments, may be = confidential and also privileged.
If you are not the intended recipient:
Please notify the sender and delete all copies of = this transmission along
with any attachments immediately.
You should not copy or use it for any purpose, nor = disclose its contents to
any other person.
---------------------------------------------------------------= -------------
------------------------------------------
DISCLAIMER: This e-mail contains proprietary = information some or all of which may be confidential or legally = privileged. It is for the exclusive use of the intended recipient(s) = only. If an addressing or transmission error has misdirected this = e-mail and you are not the intended recipient(s), please notify the = author by replying to this e-mail. If you are not the intended = recipient you must not use, disclose, distribute, copy, print, or rely = on this e-mail, as this may be unlawful.

--Boundary_(ID_wbqfyYPMbGGRbexgM7D6BQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 10:51:36 -0500 From: Stephen Jordan Subject: RF rotary joint repair 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 X-Babyl-Labels: I have heard of cases in which engineers replaced the o-ring(s) in the rotary joint due to leaking. Does anyone have any information on this regarding o-ring size and material? Thanks in adavnce! Steve Jordan UAB Rad Physics From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 11:52:23 -0400 From: "Rozenblat, Alex" Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: 'Tirabassi Michael' , "'Caunt, Peter'" Cc: "Linac list (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_Ts6jRvVAzNYrdGfXz7AICw) Content-type: text/plain; charset=iso-8859-1 Do I understand that the question is the appropriate appreciation of our distinguished position in professional world and not the background we come from? Some of us have somewhat relevant University degrees, but some of us came with little if no knowledge about many aspects of linear accelerator functioning. Many of us (majority, I hope) became unique specialists who have no parallel match in professional world. I would go even to such extend to say that my knowledge exceeds many times over "medical equipment engineer" knowledge, simply just because of our versatility and demand to know (learn) nuances in so many fields. And yet feel like we have to learn something new every single day. So, to fight a government/authorities for your recognition as a unique professional you have to prove that set/combination of your skills/knowledge cannot be match by any other professional be it a pro in electronics, or electrician, or plumber, or RF specialist, or computer wiz, or mechanic ... Best luck, Alex Rozenblat, TSRCC, Toronto -----Original Message----- From: Tirabassi Michael [mailto:Michael.Tirabassi@HCAHealthcare.com] Sent: 10 June 2004 10:04 To: 'Caunt, Peter' Cc: Linac list (E-mail) Subject: RE: Linac - electricians Are you asking if it would be appropriate for an electrician to work on a linac? Before I got into the medical field I worked 8.5 years as an industrial/commercial electrician. Therefore I feel somewhat qualified to comment on this question. All electricians are not created equal. Having said that, I certainly know that an individual who is an electrician could possess the understanding and capability to "service" a linac. Someone with motor control, high voltage, process controller experience etc.Someone whose background would help them understand the workings of a linac. But as we used to say & I have witnessed personally, some "electricians" know just enough to be dangerous! Considering the "nature" of a linac I would think that the role of a general "electrician" in regards to servicing a linac would stop at the ac line inputs in the modulator. Mike T. Rapides Cancer Center -----Original Message----- From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au] Sent: Thursday, June 10, 2004 1:06 AM To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ --Boundary_(ID_Ts6jRvVAzNYrdGfXz7AICw) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable RE: Linac - electricians

Do I understand that the question is the appropriate = appreciation of our distinguished position in professional world and = not the background we come from? Some of us have somewhat relevant = University degrees, but some of us came with little if no knowledge = about many aspects of linear

accelerator functioning. Many of us (majority, I = hope) became unique specialists who have no parallel match in = professional world. I would go even to such extend to say that my = knowledge exceeds many times over "medical equipment = engineer" knowledge, simply just because of our versatility and = demand to know (learn) nuances in so many fields. And yet feel like we = have to learn something new every single day.

So, to fight a government/authorities for your = recognition as a unique professional you have to prove that = set/combination of your skills/knowledge cannot be match by any other = professional be it a pro in electronics, or electrician, or plumber, or = RF specialist, or computer wiz, or mechanic ...

Best luck,

Alex Rozenblat,
TSRCC, Toronto

-----Original Message-----
From: Tirabassi Michael [mailto:Michael.Tirab= assi@HCAHealthcare.com]
Sent: 10 June 2004 10:04
To: 'Caunt, Peter'
Cc: Linac list (E-mail)
Subject: RE: Linac - electricians

Are you asking if it would be appropriate for an = electrician to work on a
linac?

Before I got into the medical field I worked 8.5 = years as an
industrial/commercial electrician. Therefore I feel = somewhat qualified to
comment on this question. All electricians are not = created equal. Having
said that, I certainly know that an individual who = is an electrician could
possess the understanding and capability to = "service" a linac. Someone with
motor control, high voltage, process controller = experience etc.Someone whose
background would help them understand the workings = of a linac. But as we
used to say & I have witnessed personally, some = "electricians" know just
enough to be dangerous!
Considering the "nature" of a linac I = would think that the role of a general
"electrician" in regards to servicing a = linac would stop at the ac line
inputs in the modulator.

Mike T.
Rapides Cancer Center

-----Original Message-----
From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au= ]
Sent: Thursday, June 10, 2004 1:06 AM
To: Linac Eng (E-mail)
Subject: Linac - electricians

Listmembers,
&nb= sp; &nb= sp; Apologies for this non-machine request but I believe
it is a linac-eng question.

While somewhat of a devils advocate question, it does = draw out the essential
characteristics of the job and requires an = explanation in basic terms.

Any input to assist in preparing a response would be = appreciated.

I will offer my email address as an option to those = who are concerned about
the relevance of the request to the linac-eng = group.

Kind Regards,

Peter Caunt
Radiation Oncology
Canberra Hospital
Australia.

Peter.Caunt@act.gov.au

--Boundary_(ID_Ts6jRvVAzNYrdGfXz7AICw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 11:49:09 -0400 From: "Maddox, Buford J" Subject: RE: Siemens fluctuating PFN... Sender: owner-linac-eng@plato.aristotle.net To: "'Martin, Kevin'" , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_Y3RALCVkvuIjHDLHdJAMUw) Content-type: text/plain; charset=ISO-8859-1 This sounds like a problem I had with the high voltage divider that feeds the DeQ circuits in another brand of machine. Had bad resistors, one open and one only partially cracked. They changed as they heated up, showed wrong values when tested with a power supply. Old carbon composition resistors were known for this kind of instability when used in HV applications. Does KD2 have ordinary DEQ or the newer flyback system that I see in the Primus I have? Changes in pulse width or relative timing have caught me by surprise sometimes. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Martin, Kevin Sent: Thursday, June 10, 2004 10:08 AM To: linac-eng@plato.aristotle.net Subject: FW: Siemens fluctuating PFN... Dear lurkers: I have a KD-2 with 6 - 15X....5 thru 21e Twice a day I have to adjust the pfn to stabilize the dose pulse = higher then lower ( dose pulse drops from 5 to 2.5 volts) If not I'll get dose rate errors on 15x and 6,9,and 12 e....6X and higher electrons are ok and require no adjustments... Symptom takes a couple of hours to happen but are very consistent.. To date I have replaced the Fc # 4 beam control..F/D converters #3,4 ( G32)....Trigger A...B...Klystron Interface pcb...and master clock I have monitored the pfn voltage on the klystron interface pcb (tp4) and consistently fluctuates approx. .1 to .15 volts higher and lower to cause the dose rate errors (15x-1.25 volts ok however will drift to 1.35 volts -dose rates) And so it goes I adjust the pfn higher then lower changing parts as I go and I have found my self thinking about blowing up this thing ... a couple of times...just kidden..hhmmmmm So is there some feedback coming back from the modulator that can be affecting / causing this problem... ps..I have also adjusted the filament voltage / and RF input from 40 watts to 60 to 80 and back to 60 with no change.. All power supplies have been monitored and appear stable .. Any ideas..I'll share the result with the list of course.. thanks Kevin DISCLAIMER: This electronic message, including any attachments, is confidential and intended solely for use of the intended recipient(s). This message may contain information that is privileged or otherwise protected from disclosure by applicable law. Any unauthorized disclosure, dissemination, use or reproduction is strictly prohibited. If you have received this message in error, please delete it and notify the sender immediately. --Boundary_(ID_Y3RALCVkvuIjHDLHdJAMUw) Content-type: text/html; charset=ISO-8859-1 Message

This sounds like a problem I had with the high voltage divider that feeds the DeQ circuits in another brand of machine. Had bad resistors, one open and one only partially cracked. They changed as they heated up, showed wrong values when tested with a power supply. Old carbon composition resistors were known for this kind of instability when used in HV applications. Does KD2 have ordinary DEQ or the newer flyback system that I see in the Primus I have?

Changes in pulse width or relative timing have caught me by surprise sometimes.

Jerry

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Martin, Kevin
Sent: Thursday, June 10, 2004 10:08 AM
To: linac-eng@plato.aristotle.net
Subject: FW: Siemens fluctuating PFN...

Dear lurkers:

I have a KD-2 with 6 - 15X....5 thru 21e

Twice a day I have to adjust the pfn to stabilize the dose pulse = higher then lower (  dose pulse drops from 5 to 2.5 volts) If not I'll get dose rate errors on

15x and 6,9,and 12 e....6X and higher electrons are ok and require no adjustments...

Symptom takes a couple of hours to happen but are very consistent..

To date I have replaced the Fc # 4 beam control..F/D converters #3,4 ( G32)....Trigger A...B...Klystron Interface pcb...and master clock

I have monitored the pfn voltage on the klystron interface pcb (tp4) and consistently fluctuates approx. .1 to .15 volts higher and lower to cause the dose rate errors

(15x-1.25 volts ok however will drift to 1.35 volts -dose rates)

And so it goes I adjust the pfn higher then lower changing parts as I go and I have found my self thinking about blowing up this thing  ... a couple of times...just kidden..hhmmmmm

So is there some feedback coming back from the modulator that can be affecting / causing this problem...

ps..I have also adjusted the filament voltage / and RF input from 40 watts to 60   to 80 and back to 60 with no change..

All power supplies have been monitored and appear stable ..

Any ideas..I'll share the result with the list of course..

thanks   Kevin

DISCLAIMER:
This electronic message, including any attachments, is confidential and intended solely for use of the intended recipient(s). This message may contain information that is privileged or otherwise protected from disclosure by applicable law. Any unauthorized disclosure, dissemination, use or reproduction is strictly prohibited. If you have received this message in error, please delete it and notify the sender immediately.

--Boundary_(ID_Y3RALCVkvuIjHDLHdJAMUw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 13:00:24 -0400 From: Randy.McVittie@lrcc.on.ca Subject: Re: RF rotary joint repair 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 X-Babyl-Labels: I guess it can happen, since Varian does include the tool for that big retaining clip. I have never had to do anything with it though. I think it would be a real bear of a problem to get in there and work around all of the cables, plumbing etc. What are your symptoms? Are you getting an SF6 leak there? Randy McVittie ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["1775" "Thursday" "10" "June" "2004" "13:24:41" "-0400" "Lapenna, Russ" "Russ.Lapenna@hrcc.on.ca" nil "48" "RE: RF rotary joint repair" nil nil nil "6" nil nil (number " " mark "U Lapenna, Russ Jun 10 48/1775 " thread-indent "\"RE: RF rotary joint repair\"\n") nil nil nil nil nil nil] nil) Date: Thu, 10 Jun 2004 13:24:41 -0400 From: "Lapenna, Russ" Subject: RE: RF rotary joint repair Sender: owner-linac-eng@plato.aristotle.net To: "'Randy.McVittie@lrcc.on.ca'" , Stephen Jordan Cc: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: We've had it done here once before, I don't have details of the o-ring required, but you need to remove the whole assembly and do it on a bench. I remember we were going to try it ourselves but when we saw the size of the task and realized the risk of it still leaking after we were done, we decided to send it to a third party that has a bench test jig for that setup. Russ > -----Original Message----- > From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] > Sent: Thursday, June 10, 2004 1:00 PM > To: Stephen Jordan > Cc: linac-eng@plato.aristotle.net > Subject: Re: RF rotary joint repair > > > > > I guess it can happen, since Varian does include the tool for > that big retaining > clip. I have never had to do anything with it though. > I think it would be a real bear of a problem to get in there > and work around all > of the cables, plumbing etc. > > What are your symptoms? > Are you getting an SF6 leak there? > > Randy McVittie > > > > ----------------------------------------- > This information is directed in confidence solely to the > person named above and may contain confidential and/or > privileged material. This information may not otherwise be > distributed, copied or disclosed. If you have received this > e-mail in error, please notify the sender immediately via a > return e-mail and destroy original message. Thank you for > your cooperation. > This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["30434" "Thursday" "10" "June" "2004" "11:48:45" "-0700" "Gary.Stober@providence.org" "Gary.Stober@providence.org" nil "814" "RE: RF rotary joint repair" nil nil nil "6" nil nil (number " " mark "U Gary.Stober@provi Jun 10 814/30434 " thread-indent "\"RE: RF rotary joint repair\"\n") nil nil nil nil nil nil] nil) Date: Thu, 10 Jun 2004 11:48:45 -0700 From: Gary.Stober@providence.org Subject: RE: RF rotary joint repair Sender: owner-linac-eng@plato.aristotle.net To: srjordan@uabmc.edu, linac-eng@plato.aristotle.net Importance: normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 content-class: urn:content-classes:message Thread-Topic: RF rotary joint repair Thread-Index: AcRPCl7jJESCsVHJRq6YkBMtkiSFywADoZwg X-OriginalArrivalTime: 10 Jun 2004 18:48:45.0624 (UTC) FILETIME=[8F11DB80:01C44F1B] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA16239 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: We replaced the o-ring for a gas leak once. We removed the joint and tore it down on the bench. Apparently there are two types of joint that use different o-rings. Our o-ring had a 4 lobed cross section. It looked a little like 4 smaller o-rings that were glued together, but I don't think that's how it was manufactured. With the o-ring installed in a square cross section, it has two points of contact on each side of the square, instead of one with a conventional o-ring. It worked fine for maybe 6 months, then started leaking a lot, so we replaced the joint. Don't think I'd go the o-ring route again. Goog luck. - Gary Stober Clinical Engineering Providence St. Vincent Medical Center 9205 SW Barnes Road Portland, OR 97225 (503) 216-2988 (503) 216-2972 (Fax) mailto:Gary.Stober@providence.org -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Stephen Jordan Sent: Thursday, June 10, 2004 8:52 AM To: linac-eng@plato.aristotle.net Subject: RF rotary joint repair I have heard of cases in which engineers replaced the o-ring(s) in the rotary joint due to leaking. Does anyone have any information on this regarding o-ring size and material? Thanks in adavnce! Steve Jordan UAB Rad Physics DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 16:04:43 -0500 From: Stephen Jordan Subject: Rotary joint repair 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 X-Babyl-Labels: Thanks for all the help, folks. Looks like it's the semi-rigid guide section at the output of the rotary joint, instead. (whew!) It would only leak when the cabling would lean on it. Time to re-dress the cables. Steve From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 06:00:59 +0600 From: Gerry Guevara Subject: Brand-models of notebooks kelvin To: kok@radth.ruu.nl, kotte@radth.ruu.nl, r.exterkate@radth.ruu.nl, ramesh@radth.ruu.nl, ric@radth.ruu.nl X-Babyl-Labels: ----768576322654620
=

a[5 ----768576322654620-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Thu, 10 Jun 2004 23:58:47 +0100 (BST) From: =?iso-8859-1?q?pankaj=20roy?= Subject: Re: Linac - electricians In-reply-to: <2FC7DBCD6D6AD611AD7B0090278CABAEE79E9A@CAL030> Sender: owner-linac-eng@plato.aristotle.net To: "Caunt, Peter" , "Linac Eng (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hi all, Keep it simple----- In a world of specialists, an "Electrician" or "Electronics" person is a specialist who deals with Electricity or Electronics. HOWEVER, A Linac Engineer is specialist who deals with---- PROBABILITY, ELECTRICITY (HV and LV), ELECTRONICS ( Digital and Analog), DIGITAL CONTROLS, SOFTWARE & FIRMWARE, BUGS, MECHANICS and SAFETY, BEHAVIOUR of GASES, HYDRAULICS, MICROWAVE, OPTICS and LENSES, OPTOELECTRONICS, THERMODYNAMICS , IMAGE QUALITY, THEORY of X-RADIATION and its RELATIONSHIP TO THE REAL WORLD, EFFECTS OF RADIATION on ELECTRONICS and COMMUNICATIONS. +++++ UNDOCUMENTED PAST EXPERIENCE. (And not to forget---A potentiometer's behaviour as per Heisenberg's uncertainty principle). If any other specialist is willing to pick up these threads, he would be most welcome to the Linac Engineers fraternity. This is what has to be presented to the bureaucrats. They can hire anyone with the above characteristics. Best of Luck, Pankaj Roy Liverpool Australia --- "Caunt, Peter" wrote: > Listmembers, > Apologies for this > non-machine request but I believe > it is a linac-eng question. > > Had discussions recently with some government types > regarding radiotherapy > "engineering" support services and the question > posed concerns the role of a > "linac engineer" and what comparative service would > be provided if you only > had electricians on contract. > > While somewhat of a devils advocate question, it > does draw out the essential > characteristics of the job and requires an > explanation in basic terms. > > Any input to assist in preparing a response would be > appreciated. > > I will offer my email address as an option to those > who are concerned about > the relevance of the request to the linac-eng group. > > Kind Regards, > > > > Peter Caunt > Radiation Oncology > Canberra Hospital > Australia. > > Peter.Caunt@act.gov.au > > "Important: This transmission is intended only for > the use of the addressee > and may contain confidential or legally privileged > information. > If you are not the intended recipient, you are > notified that any use or > dissemination of this communication is strictly > prohibited. If you receive > this transmission in error please notify the author > immediately and delete > all copies of this transmission." > > > > ---------------------------------------------------------------------------- > ------------------------------------------ > This email, and any attachments, may be > confidential and also privileged. > If you are not the intended recipient: > Please notify the sender and delete all copies of > this transmission along > with any attachments immediately. > You should not copy or use it for any purpose, nor > disclose its contents to > any other person. > ---------------------------------------------------------------------------- > ------------------------------------------ ___________________________________________________________ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself http://uk.messenger.yahoo.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 00:19:01 +0100 (BST) From: =?iso-8859-1?q?pankaj=20roy?= Subject: RE: Siemens fluctuating PFN... In-reply-to: <36298D09ED1AD311B4DC0008C7F4D4E111466498@phsexch6.partners.org> Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" , "'Martin, Kevin'" , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hello, FIRSTLY, CHECK IF THERE IS ANY CHANGE IN RF-OUT ON THE RF DRIVER (when put to internal trigger) DURING DIFFERENT TIMES--problem or no problem. Now, though you may have done this before, I would suggest starting again. Is it a beam problem or a dose problem? Hook the SCOPE---Does the amplitude of Pulse-I change or the Inj-I change (even slightly) when there is a problem . If yes---, did you try replacing the 8255 chips on the Beam F.C.-3. If already done this, and ---if the Inj-I is changing, did you check the +135V bias in the Injector. (If however the above is OK and , ON THE SCOPE, there is no change in Pulse-I or Inj-I, there may be a problem in Dose monitoring). Best of Luck, Pankaj Roy Liverpool Australia --- "Maddox, Buford J" wrote: > This sounds like a problem I had with the high > voltage divider that feeds the > DeQ circuits in another brand of machine. Had bad > resistors, one open and one > only partially cracked. They changed as they heated > up, showed wrong values > when tested with a power supply. Old carbon > composition resistors were known > for this kind of instability when used in HV > applications. Does KD2 have > ordinary DEQ or the newer flyback system that I see > in the Primus I have? > Changes in pulse width or relative timing have > caught me by surprise > sometimes. > Jerry > > -----Original Message----- > From: owner-linac-eng@plato.aristotle.net > [mailto:owner-linac-eng@plato.aristotle.net]On > Behalf Of Martin, Kevin > Sent: Thursday, June 10, 2004 10:08 AM > To: linac-eng@plato.aristotle.net > Subject: FW: Siemens fluctuating PFN... > > > > > Dear lurkers: > I have a KD-2 with 6 - 15X....5 thru 21e > Twice a day I have to adjust the pfn to stabilize > the dose pulse = higher then > lower ( dose pulse drops from 5 to 2.5 volts) If > not I'll get dose rate errors > on > 15x and 6,9,and 12 e....6X and higher electrons are > ok and require no > adjustments... > Symptom takes a couple of hours to happen but are > very consistent.. > To date I have replaced the Fc # 4 beam control..F/D > converters #3,4 ( > G32)....Trigger A...B...Klystron Interface pcb...and > master clock > I have monitored the pfn voltage on the klystron > interface pcb (tp4) and > consistently fluctuates approx. .1 to .15 volts > higher and lower to cause the > dose rate errors > (15x-1.25 volts ok however will drift to 1.35 volts > -dose rates) > And so it goes I adjust the pfn higher then lower > changing parts as I go and I > have found my self thinking about blowing up this > thing ... a couple of > times...just kidden..hhmmmmm > So is there some feedback coming back from the > modulator that can be affecting / > causing this problem... > ps..I have also adjusted the filament voltage / and > RF input from 40 watts to 60 > to 80 and back to 60 with no change.. > All power supplies have been monitored and appear > stable .. > > Any ideas..I'll share the result with the list of > course.. > thanks Kevin > > > > DISCLAIMER: > This electronic message, including any attachments, > is confidential and intended > solely for use of the intended recipient(s). This > message may contain > information that is privileged or otherwise > protected from disclosure by > applicable law. Any unauthorized disclosure, > dissemination, use or reproduction > is strictly prohibited. If you have received this > message in error, please > delete it and notify the sender immediately. > > ___________________________________________________________ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself http://uk.messenger.yahoo.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 11:37:30 +1200 From: Dave Pinchin Subject: Re: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: Peter.Caunt@act.gov.au, linac-eng@plato.aristotle.net Content-disposition: inline X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id SAA24663 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: G'day Peter, DANGEROUS ground tread very carefully. YOUR (and my) jobs are on the line. NZ follows Aus in most of these lines of thought. A BIG thrust in the electrical industry has been absolute safety. We (Ausy & NZ electricians) require regular first aid & safety in workplace training. The hosp electricians are in a border area where their safety training is insufficient for their 'particular' roles. I remember one safety lecture where infection control was discussed and the infection control nurse was brought in. She showed us how to do a bedpan. One electrician came back with, ' That's all very well, but after I've been down in the sewers how do I clean my tools before I work in the theatre ?' So, already, the training 'requirement' is insufficient for a general hospital environment. If we roll on to the legal requirement that 'should' apply to Radiotherapy Engineers we must add a hefty dose of radiation safety training. This has totally ignored the highly technical nature of the beasts we work with. I have been actively pushing the concept of 'Specialist Linac Engineer' as a job description. We are literally irreplaceable, they need to understand this. Their line of thought is, 'Get Joe Bloggs electrical to fix the linac after he's finished sorting out the air conditioning.' It will be much cheaper for them because the hourly rate is only $50. The other fallacy in this pattern is that as Joe Bloggs Electrical will be doing the job, all holiday cover, sick leave cover, changing staff etc will be automatically covered. This does not work because Each Person who MAY respond to the repair requirement MUST be fully trained and experienced.. I have enough problem keeping experienced because the modern machine is so reliable. It would be absolutely impossible for Joe Bloggs electrician. The long term implications are obvious. Machine reliability will drop, time taken to repair a fault will increase. Here's you downtime stats. Intermittents will increase. ad hoc modifications will 'seriously compromise' patient treatments and safety. Whereas if they consider the alternative a linac specialist should be able to 'demand' what they want because they are irreplaceable. Consider Mr V's training course. How expensive is it? Add some radiation training. It all adds up. I suggest you join the RSEA immediately and then our chosen 'profession' will have a better standing. Dave >>> "Caunt, Peter" 10/06/04 18:06:19 >>> Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ ********************************************************************** 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 ********************************************************************** From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 08:14:40 -0400 From: neville.wiles@spectrum-health.org Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: Michael.Tirabassi@HCAHealthcare.com, Peter.Caunt@act.gov.au Cc: linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_80zopz0BBhWVYwfvhW5iBw) Content-type: text/plain; charset=iso-8859-1 Its their unit but tell them you want a lot more money to come back and put it back together. -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Tirabassi Michael Sent: Thursday, June 10, 2004 10:04 AM To: 'Caunt, Peter' Cc: Linac list (E-mail) Subject: RE: Linac - electricians Are you asking if it would be appropriate for an electrician to work on a linac? Before I got into the medical field I worked 8.5 years as an industrial/commercial electrician. Therefore I feel somewhat qualified to comment on this question. All electricians are not created equal. Having said that, I certainly know that an individual who is an electrician could possess the understanding and capability to "service" a linac. Someone with motor control, high voltage, process controller experience etc.Someone whose background would help them understand the workings of a linac. But as we used to say & I have witnessed personally, some "electricians" know just enough to be dangerous! Considering the "nature" of a linac I would think that the role of a general "electrician" in regards to servicing a linac would stop at the ac line inputs in the modulator. Mike T. Rapides Cancer Center -----Original Message----- From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au] Sent: Thursday, June 10, 2004 1:06 AM To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ---------------------------------------------------------------------------- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ---------------------------------------------------------------------------- ------------------------------------------ --Boundary_(ID_80zopz0BBhWVYwfvhW5iBw) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable RE: Linac - electricians

Its their unit but tell them you want a lot more = money to come back and put it back together.

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net
[mailto:owner-linac-e= ng@plato.aristotle.net]On Behalf Of Tirabassi
Michael
Sent: Thursday, June 10, 2004 10:04 AM
To: 'Caunt, Peter'
Cc: Linac list (E-mail)
Subject: RE: Linac - electricians

Are you asking if it would be appropriate for an = electrician to work on a
linac?

Mike T.
Rapides Cancer Center

-----Original Message-----
From: Caunt, Peter [mailto:Peter.Caunt@act.gov.au= ]
Sent: Thursday, June 10, 2004 1:06 AM
To: Linac Eng (E-mail)
Subject: Linac - electricians

Listmembers,
&nb= sp; &nb= sp; Apologies for this non-machine request but I believe
it is a linac-eng question.

While somewhat of a devils advocate question, it does = draw out the essential
characteristics of the job and requires an = explanation in basic terms.

Any input to assist in preparing a response would be = appreciated.

I will offer my email address as an option to those = who are concerned about
the relevance of the request to the linac-eng = group.

Kind Regards,

Peter Caunt
Radiation Oncology
Canberra Hospital
Australia.

Peter.Caunt@act.gov.au

--Boundary_(ID_80zopz0BBhWVYwfvhW5iBw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 09:45:34 -0400 From: "Feuerstake, Tom" Subject: RE: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: "Linac Eng (E-mail)" X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 Content-Class: urn:content-classes:message Thread-Topic: Linac - electricians Thread-Index: AcRO0isRT2u+OCaWTeONByvMm/idlwA1/9Sg X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id IAA03273 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: In Canada we have a federal regulatory agency that controls the use of radiation emitting devices, by issuing user licenses. One of these licenses is called a "license to service". Among other things, this license confirms that service personnel have adequate training to service the high- energy machines. This training must include radiation safety training, with modules intended specifically for servicing Linacs. There are other training requirements as well. I doubt very much that your electricians would have this. Perhaps your government types are concerned about the fact that you are un-licensed, that there are no standards or published qualifications for what you do, and they are looking for a solution. We all know that the technical knowledge we have far exceeds what an electrician must know to do the job, but electricians have a standard and a code to go by. What you should do is start talking to these other government types, your nuclear regulatory agency. You've got to convince them that the solution is- to license you. This move towards licensing our work is coming into place in some other countries as well. Perhaps this is a growing trend in our industry, but I can't confirm this. I'd like to hear from anyone else if they have similar situations in their own country. Regards, Tom Feuerstake Kingston, Ontario -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Caunt, Peter Sent: June 10, 2004 2:06 AM To: Linac Eng (E-mail) Subject: Linac - electricians Listmembers, Apologies for this non-machine request but I believe it is a linac-eng question. Had discussions recently with some government types regarding radiotherapy "engineering" support services and the question posed concerns the role of a "linac engineer" and what comparative service would be provided if you only had electricians on contract. While somewhat of a devils advocate question, it does draw out the essential characteristics of the job and requires an explanation in basic terms. Any input to assist in preparing a response would be appreciated. I will offer my email address as an option to those who are concerned about the relevance of the request to the linac-eng group. Kind Regards, Peter Caunt Radiation Oncology Canberra Hospital Australia. Peter.Caunt@act.gov.au "Important: This transmission is intended only for the use of the addressee and may contain confidential or legally privileged information. If you are not the intended recipient, you are notified that any use or dissemination of this communication is strictly prohibited. If you receive this transmission in error please notify the author immediately and delete all copies of this transmission." ------------------------------------------------------------------------ ---- ------------------------------------------ This email, and any attachments, may be confidential and also privileged. If you are not the intended recipient: Please notify the sender and delete all copies of this transmission along with any attachments immediately. You should not copy or use it for any purpose, nor disclose its contents to any other person. ------------------------------------------------------------------------ ---- ------------------------------------------ From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["52428" "Friday" "11" "June" "2004" "09:34:15" "-0500" "Martin, Kevin" "Kevin.Martin@brgeneral.org" nil "1387" "follow - up to pfn dose problems" nil nil nil "6" nil nil (number " " mark "U Martin, Kevin Jun 11 1387/52428 " thread-indent "\"follow - up to pfn dose problems\"\n") nil nil nil nil nil nil] nil) Date: Fri, 11 Jun 2004 09:34:15 -0500 From: "Martin, Kevin" Subject: follow - up to pfn dose problems Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Importance: normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Content-Class: urn:content-classes:message Thread-Topic: follow - up to pfn dose problems thread-index: AcRPwSscvcoFCy/8Qu+xXlVrJliSgA== X-OriginalArrivalTime: 11 Jun 2004 14:34:15.0967 (UTC) FILETIME=[2C0EDAF0:01C44FC1] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_Y8e+Qoh4Kfo4aIiyV1QV2A) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable A follow-up to my problem with a fluctuating dose pulse on a Siemens KD-2 ... Last evening after eliminating all inputs going to the modulator I looked in the modulator ( Diodes , resistors, connections , corona discharge etc..) couldn't find anything..Temp. related problems can be such a B***h .....Since this problem occurs mainly with 15X and low electrons I looked at the charging side....I replaced the tetrode and low and behold the dose pulse settled down....hhmmmmm...I then replaced the thyratron chassis assy and hmmm it got much better.... I will monitor this for a couple of days but I must say it looks promising..... =20 Many thanks to all the guys that responded..with all the great info..we know that there is many solutions to these type of problems... but it's great to bounce ideas around... have a good day EH!! =20 =20 DISCLAIMER: This electronic message, including any attachments, is confidential and = intended solely for use of the intended recipient(s). This message may = contain information that is privileged or otherwise protected from = disclosure by applicable law. Any unauthorized disclosure, = dissemination, use or reproduction is strictly prohibited. If you have = received this message in error, please delete it and notify the sender = immediately. --Boundary_(ID_Y8e+Qoh4Kfo4aIiyV1QV2A) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

A = follow-up to my=20 problem with a fluctuating dose pulse on a Siemens KD-2=20 ...

Last = evening after=20 eliminating all inputs going to the modulator I looked in the=20 modulator ( Diodes , resistors, = connections ,=20 corona discharge etc..)

couldn't find=20 anything..Temp. related problems can be such a B***h .....Since = this=20 problem occurs mainly with 15X and low electrons I looked at the = charging=20 side....I replaced the tetrode and low and behold

the = dose pulse=20 settled down....hhmmmmm...I then replaced the thyratron chassis assy and = hmmm it=20 got much better....

I will = monitor this=20 for a couple of days but I must say it looks = promising.....

Many = thanks to all=20 the guys that responded..with all the great info..we know that = there is=20 many solutions to these type of problems...

but = it's great to=20 bounce ideas around...

have a = good=20 day EH!!

DISCLAIMER= :
This electronic message, including any attachments, is confidential = and intended solely for use of the intended recipient(s). This message = may contain information that is privileged or otherwise protected from = disclosure by applicable law. Any unauthorized disclosure, = dissemination, use or reproduction is strictly prohibited. If you have = received this message in error, please delete it and notify the sender = immediately. --Boundary_(ID_Y8e+Qoh4Kfo4aIiyV1QV2A)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 11:12:16 -0400 From: "Maddox, Buford J" Subject: RE: Rotary joint repair Sender: owner-linac-eng@plato.aristotle.net To: 'Stephen Jordan' , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Those semi-rigid/fles guides are notorious for leaks, especially at the solder joints. We have tried resoldering, refurbished ones, and epoxy. Epoxy worked great, no leaks, but had to put it on thick. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Stephen Jordan Sent: Thursday, June 10, 2004 5:05 PM To: linac-eng@plato.aristotle.net Subject: Rotary joint repair Thanks for all the help, folks. Looks like it's the semi-rigid guide section at the output of the rotary joint, instead. (whew!) It would only leak when the cabling would lean on it. Time to re-dress the cables. Steve From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Fri, 11 Jun 2004 11:29:46 -0400 From: "Maddox, Buford J" Subject: RE: Siemens fluctuating PFN... Sender: owner-linac-eng@plato.aristotle.net To: 'pankaj roy' , "'Martin, Kevin'" , linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Our local Siemens guy just solved a lot of intermittent problems this week by checking many connectors, fixing some, reseating others; some were loose. FC ones are especially prone to flakey problems. Days of glitches, none after that. 8255s are a common problem as stated. Some say the NEC version works best. We keep a lot of spares, easy thing to try. Also agree with the injector possibility. Have seen zeners and xistors go bad, lots of stress there. Be sure to use heat sink grease. Cmos tends to fail in a manner which results in intermittent behavior. Can sometimes see input or output DC levels and/or pulses that are wrong, borderline. Or if several outputs are paralleled, one may not have low enough output impedance when activated. Once spent a whole day in a conventional console, waveforms fine, occasionally wrong data in the wrong place. Finally found a glitch on the clock which is a combinational waveform from ANDing several counter outputs. it was caused by high z output on one cmos chip. Several times bad/flakey cmos chips have caused intermittent check cycle interlocks on my Primus. Typically narrow problem to a few chips, replace them, in old days when there were sockets. Jerry -----Original Message----- From: pankaj roy [mailto:pankajroy135@yahoo.co.uk] Sent: Thursday, June 10, 2004 7:19 PM To: Maddox, Buford J; 'Martin, Kevin'; linac-eng@plato.aristotle.net Subject: RE: Siemens fluctuating PFN... Hello, FIRSTLY, CHECK IF THERE IS ANY CHANGE IN RF-OUT ON THE RF DRIVER (when put to internal trigger) DURING DIFFERENT TIMES--problem or no problem. Now, though you may have done this before, I would suggest starting again. Is it a beam problem or a dose problem? Hook the SCOPE---Does the amplitude of Pulse-I change or the Inj-I change (even slightly) when there is a problem . If yes---, did you try replacing the 8255 chips on the Beam F.C.-3. If already done this, and ---if the Inj-I is changing, did you check the +135V bias in the Injector. (If however the above is OK and , ON THE SCOPE, there is no change in Pulse-I or Inj-I, there may be a problem in Dose monitoring). Best of Luck, Pankaj Roy Liverpool Australia --- "Maddox, Buford J" wrote: > This sounds like a problem I had with the high > voltage divider that feeds the > DeQ circuits in another brand of machine. Had bad > resistors, one open and one > only partially cracked. They changed as they heated > up, showed wrong values > when tested with a power supply. Old carbon > composition resistors were known > for this kind of instability when used in HV > applications. Does KD2 have > ordinary DEQ or the newer flyback system that I see > in the Primus I have? > Changes in pulse width or relative timing have > caught me by surprise > sometimes. > Jerry > > -----Original Message----- > From: owner-linac-eng@plato.aristotle.net > [mailto:owner-linac-eng@plato.aristotle.net]On > Behalf Of Martin, Kevin > Sent: Thursday, June 10, 2004 10:08 AM > To: linac-eng@plato.aristotle.net > Subject: FW: Siemens fluctuating PFN... > > > > > Dear lurkers: > I have a KD-2 with 6 - 15X....5 thru 21e > Twice a day I have to adjust the pfn to stabilize > the dose pulse = higher then > lower ( dose pulse drops from 5 to 2.5 volts) If > not I'll get dose rate errors > on > 15x and 6,9,and 12 e....6X and higher electrons are > ok and require no > adjustments... > Symptom takes a couple of hours to happen but are > very consistent.. > To date I have replaced the Fc # 4 beam control..F/D > converters #3,4 ( > G32)....Trigger A...B...Klystron Interface pcb...and > master clock > I have monitored the pfn voltage on the klystron > interface pcb (tp4) and > consistently fluctuates approx. .1 to .15 volts > higher and lower to cause the > dose rate errors > (15x-1.25 volts ok however will drift to 1.35 volts > -dose rates) > And so it goes I adjust the pfn higher then lower > changing parts as I go and I > have found my self thinking about blowing up this > thing ... a couple of > times...just kidden..hhmmmmm > So is there some feedback coming back from the > modulator that can be affecting / > causing this problem... > ps..I have also adjusted the filament voltage / and > RF input from 40 watts to 60 > to 80 and back to 60 with no change.. > All power supplies have been monitored and appear > stable .. > > Any ideas..I'll share the result with the list of > course.. > thanks Kevin > > > > DISCLAIMER: > This electronic message, including any attachments, > is confidential and intended > solely for use of the intended recipient(s). This > message may contain > information that is privileged or otherwise > protected from disclosure by > applicable law. Any unauthorized disclosure, > dissemination, use or reproduction > is strictly prohibited. If you have received this > message in error, please > delete it and notify the sender immediately. > > ___________________________________________________________ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself http://uk.messenger.yahoo.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 14 Jun 2004 12:48:34 +0000 From: davesteimel.miro@comcast.net Subject: RE: Siemens fluctuating PFN... Sender: owner-linac-eng@plato.aristotle.net To: "Maddox, Buford J" Cc: 'pankaj roy' , "'Martin, Kevin'" , linac-eng@plato.aristotle.net X-Authenticated-Sender: ZGF2ZXN0ZWltZWwubWlyb0Bjb21jYXN0Lm5ldA== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hello Group, I have a KD-2 that kicked my butt for quite a while with this type of intermittent problem. Reference the overall schematic "Modulator Assembley, Klystron (5658166). At 'K4 CR6, To K1J2 Charging current', you will see 2 varistors Rv1 & Rv2. These are located behind the K1 power chasis, you need to swing that panel forward (DISCHARGE CAPS !) to see them. Mine were pretty toasted and making intermittent connection. Replaced them and problem solved. Good Luck, Dave Steimel MIRO Madison Heights, MI 248-563-1116 > Our local Siemens guy just solved a lot of intermittent problems this week > by checking many connectors, fixing some, reseating others; some were loose. > FC ones are especially prone to flakey problems. Days of glitches, none > after that. > 8255s are a common problem as stated. Some say the NEC version works best. > We keep a lot of spares, easy thing to try. > Also agree with the injector possibility. Have seen zeners and xistors go > bad, lots of stress there. Be sure to use heat sink grease. > Cmos tends to fail in a manner which results in intermittent behavior. Can > sometimes see input or output DC levels and/or pulses that are wrong, > borderline. Or if several outputs are paralleled, one may not have low > enough output impedance when activated. Once spent a whole day in a > conventional console, waveforms fine, occasionally wrong data in the wrong > place. Finally found a glitch on the clock which is a combinational > waveform from ANDing several counter outputs. it was caused by high z > output on one cmos chip. Several times bad/flakey cmos chips have caused > intermittent check cycle interlocks on my Primus. Typically narrow problem > to a few chips, replace them, in old days when there were sockets. > Jerry > > > -----Original Message----- > From: pankaj roy [mailto:pankajroy135@yahoo.co.uk] > Sent: Thursday, June 10, 2004 7:19 PM > To: Maddox, Buford J; 'Martin, Kevin'; linac-eng@plato.aristotle.net > Subject: RE: Siemens fluctuating PFN... > > > Hello, > > FIRSTLY, CHECK IF THERE IS ANY CHANGE IN RF-OUT ON THE > RF DRIVER (when put to internal trigger) DURING > DIFFERENT TIMES--problem or no problem. > > Now, though you may have done this before, I would > suggest starting again. > > Is it a beam problem or a dose problem? > > Hook the SCOPE---Does the amplitude of Pulse-I change > or the Inj-I change (even slightly) when there is a > problem . > > If yes---, did you try replacing the 8255 chips on the > Beam F.C.-3. > > If already done this, > > and ---if the Inj-I is changing, did you check the > +135V bias in the Injector. > > > (If however the above is OK and , ON THE SCOPE, there > is no change in Pulse-I or Inj-I, there may be a > problem in Dose monitoring). > > > Best of Luck, > Pankaj Roy > Liverpool > Australia > > > > > > > > --- "Maddox, Buford J" > wrote: > This sounds like a problem I had with the > high > > voltage divider that feeds the > > DeQ circuits in another brand of machine. Had bad > > resistors, one open and one > > only partially cracked. They changed as they heated > > up, showed wrong values > > when tested with a power supply. Old carbon > > composition resistors were known > > for this kind of instability when used in HV > > applications. Does KD2 have > > ordinary DEQ or the newer flyback system that I see > > in the Primus I have? > > Changes in pulse width or relative timing have > > caught me by surprise > > sometimes. > > Jerry > > > > -----Original Message----- > > From: owner-linac-eng@plato.aristotle.net > > [mailto:owner-linac-eng@plato.aristotle.net]On > > Behalf Of Martin, Kevin > > Sent: Thursday, June 10, 2004 10:08 AM > > To: linac-eng@plato.aristotle.net > > Subject: FW: Siemens fluctuating PFN... > > > > > > > > > > Dear lurkers: > > I have a KD-2 with 6 - 15X....5 thru 21e > > Twice a day I have to adjust the pfn to stabilize > > the dose pulse = higher then > > lower ( dose pulse drops from 5 to 2.5 volts) If > > not I'll get dose rate errors > > on > > 15x and 6,9,and 12 e....6X and higher electrons are > > ok and require no > > adjustments... > > Symptom takes a couple of hours to happen but are > > very consistent.. > > To date I have replaced the Fc # 4 beam control..F/D > > converters #3,4 ( > > G32)....Trigger A...B...Klystron Interface pcb...and > > master clock > > I have monitored the pfn voltage on the klystron > > interface pcb (tp4) and > > consistently fluctuates approx. .1 to .15 volts > > higher and lower to cause the > > dose rate errors > > (15x-1.25 volts ok however will drift to 1.35 volts > > -dose rates) > > And so it goes I adjust the pfn higher then lower > > changing parts as I go and I > > have found my self thinking about blowing up this > > thing ... a couple of > > times...just kidden..hhmmmmm > > So is there some feedback coming back from the > > modulator that can be affecting / > > causing this problem... > > ps..I have also adjusted the filament voltage / and > > RF input from 40 watts to 60 > > to 80 and back to 60 with no change.. > > All power supplies have been monitored and appear > > stable .. > > > > Any ideas..I'll share the result with the list of > > course.. > > thanks Kevin > > > > > > > > DISCLAIMER: > > This electronic message, including any attachments, > > is confidential and intended > > solely for use of the intended recipient(s). This > > message may contain > > information that is privileged or otherwise > > protected from disclosure by > > applicable law. Any unauthorized disclosure, > > dissemination, use or reproduction > > is strictly prohibited. If you have received this > > message in error, please > > delete it and notify the sender immediately. > > > > > > > > > > ___________________________________________________________ALL-NEW Yahoo! > Messenger - sooooo many all-new ways to express yourself > http://uk.messenger.yahoo.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 14 Jun 2004 14:48:15 +0000 From: davesteimel.miro@comcast.net Subject: Re: Siemens fluctuating PFN Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net (Linac-eng POST) X-Authenticated-Sender: ZGF2ZXN0ZWltZWwubWlyb0Bjb21jYXN0Lm5ldA== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hello Group, I apologize if this posts twice. I don�t see my first post appearing. I have a KD-2 that kicked my butt with an intermittent PFN problem like this one. Reference the schematic # 5658166 titled �Modulator Assy., Klystron�. At K4CR6 �To K1J2 Charging Current� you can see 2 varistors Rv1 & Rv2. These components are located behind the fold down K1 Power Distribution panel in the Klystron rack. On my machine there was only one, but it was thoroughly toasted, making intermittent connection. Replaced it with a locally purchased equivalent and it resolved my PFN instability. Good Luck, Dave Steimel MIRO, Madison Hts., MI 248-563-1116 From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 14 Jun 2004 18:20:34 -0500 From: lsullivan@bhcpns.org Subject: 6ex flow IL Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 6.5.1|January 21, 2004) at 06/14/2004 06:20:35 PM, Serialize complete at 06/14/2004 06:20:35 PM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multipart message in MIME format. --Boundary_(ID_pzUAmESBUE4vClI1KTVadg) Content-type: text/plain; charset=US-ASCII Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729 Thanks in advance Larry Sullivan Baptist Hospital 850-469-2200 ----------------------------------------- All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message. --Boundary_(ID_pzUAmESBUE4vClI1KTVadg) Content-type: text/html; charset=US-ASCII
Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only

and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving

any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the

problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729

Thanks in advance
Larry Sullivan
Baptist Hospital
850-469-2200

All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message.

--Boundary_(ID_pzUAmESBUE4vClI1KTVadg)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Mon, 14 Jun 2004 17:34:03 -0700 From: Timothy Brown Subject: Re: Linac - electricians Sender: owner-linac-eng@plato.aristotle.net To: Peter.Caunt@act.gov.au, linac-eng@plato.aristotle.net, pankajroy135@yahoo.co.uk Content-disposition: inline X-MessageScreenMessageID: 1087259673.704173.1070.214584 X-MessageScreenContentScore: Score of 0 assigned to Content X-MessageScreenUCEScore: Score of 0 assigned to UCE X-MessageScreen: Analyzed by IntelliReach MessageScreen(tm) http://www.intellireach.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Good one. Tim Brown N AZ Cancer Ctr >>> pankaj roy 06/10/04 03:58PM >>> Hi all, Keep it simple----- In a world of specialists, an "Electrician" or "Electronics" person is a specialist who deals with Electricity or Electronics. HOWEVER, A Linac Engineer is specialist who deals with---- PROBABILITY, ELECTRICITY (HV and LV), ELECTRONICS ( Digital and Analog), DIGITAL CONTROLS, SOFTWARE & FIRMWARE, BUGS, MECHANICS and SAFETY, BEHAVIOUR of GASES, HYDRAULICS, MICROWAVE, OPTICS and LENSES, OPTOELECTRONICS, THERMODYNAMICS , IMAGE QUALITY, THEORY of X-RADIATION and its RELATIONSHIP TO THE REAL WORLD, EFFECTS OF RADIATION on ELECTRONICS and COMMUNICATIONS. +++++ UNDOCUMENTED PAST EXPERIENCE. (And not to forget---A potentiometer's behaviour as per Heisenberg's uncertainty principle). If any other specialist is willing to pick up these threads, he would be most welcome to the Linac Engineers fraternity. This is what has to be presented to the bureaucrats. They can hire anyone with the above characteristics. Best of Luck, Pankaj Roy Liverpool Australia --- "Caunt, Peter" wrote: > Listmembers, > Apologies for this > non-machine request but I believe > it is a linac-eng question. > > Had discussions recently with some government types > regarding radiotherapy > "engineering" support services and the question > posed concerns the role of a > "linac engineer" and what comparative service would > be provided if you only > had electricians on contract. > > While somewhat of a devils advocate question, it > does draw out the essential > characteristics of the job and requires an > explanation in basic terms. > > Any input to assist in preparing a response would be > appreciated. > > I will offer my email address as an option to those > who are concerned about > the relevance of the request to the linac-eng group. > > Kind Regards, > > > > Peter Caunt > Radiation Oncology > Canberra Hospital > Australia. > > Peter.Caunt@act.gov.au > > "Important: This transmission is intended only for > the use of the addressee > and may contain confidential or legally privileged > information. > If you are not the intended recipient, you are > notified that any use or > dissemination of this communication is strictly > prohibited. If you receive > this transmission in error please notify the author > immediately and delete > all copies of this transmission." > > > > ---------------------------------------------------------------------------- > ------------------------------------------ > This email, and any attachments, may be > confidential and also privileged. > If you are not the intended recipient: > Please notify the sender and delete all copies of > this transmission along > with any attachments immediately. > You should not copy or use it for any purpose, nor > disclose its contents to > any other person. > ---------------------------------------------------------------------------- > ------------------------------------------ ___________________________________________________________ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself http://uk.messenger.yahoo.com From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 15:51:54 +0930 From: Andrew Frolov Subject: Re: 6ex flow IL In-reply-to: Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Organization: Royal Adelaide Hospital X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: We have a flow interlock on our 600 c/d occasionally due to oxidation of flow sensor contacts. Seems to be very strange as there is no visible oxidation, but disconnecting and re-connecting the contacts helps eliminate the i/l for months or years. Then it comes back again. From: lsullivan@bhcpns.org To: linac-eng@plato.aristotle.net Subject: 6ex flow IL Date sent: Mon, 14 Jun 2004 18:20:34 -0500 > Good day all... Please help!!! I have an intermittent flow interlock > which seems to occur at 270 deg a couple of times a day. We use the 6ex > for imrt only > > and when I check the flow AFC board none of the red indicator lamps are > illuminated.. So far I can't duplicate by continuously rotating gantry or > moving > > any hoses or cables. I can pinch off hose and create the Fault, I have > recalibrated the flow transducers and widened the tolerances slightly but > the > > problem seems to continue... It may happen 2 or 3 times a day or less and > would appreciate any thoughts ... Serial # 729 > > > > Thanks in advance > Larry Sullivan > Baptist Hospital > 850-469-2200 > > > ----------------------------------------- > All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. a re subject to monitoring. This message and the information contained in it, which may consist of e lectronic data attachments, are the confidential and proprietary communications of Baptist Health C are and are intended to be received only by the individual or individuals to whom the message has b een addressed. If the reader of this message is not the intended recipient, please take notice tha t any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Heal th Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message. Andrew Frolov Manager, RE Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 08:13:12 +0100 From: "White, Malcolm" Subject: RE: 6ex flow IL 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 X-Babyl-Labels: 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_K/w4TXExTkyiNOQx5uQ2/A) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_0uVBnlU1gLkVYcTo+fdLog)" --Boundary_(ID_0uVBnlU1gLkVYcTo+fdLog) Content-type: text/plain; CHARSET=US-ASCII Duff Flow switch? Malcolm White -----Original Message----- From: lsullivan@bhcpns.org [mailto:lsullivan@bhcpns.org] Sent: 15 June 2004 00:21 To: linac-eng@plato.aristotle.net Subject: 6ex flow IL Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729 Thanks in advance Larry Sullivan Baptist Hospital 850-469-2200 --Boundary_(ID_0uVBnlU1gLkVYcTo+fdLog) Content-type: text/html

Duff Flow switch?

Malcolm White

-----Original Message-----
From: lsullivan@bhcpns.org [mailto:lsullivan@bhcpns.org]
Sent: 15 June 2004 00:21
To: linac-eng@plato.aristotle.net
Subject: 6ex flow IL

Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only

and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving

any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the

problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729

Thanks in advance
Larry Sullivan
Baptist Hospital
850-469-2200

--Boundary_(ID_0uVBnlU1gLkVYcTo+fdLog)-- --Boundary_(ID_K/w4TXExTkyiNOQx5uQ2/A)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 22:15:36 +1000 From: Francis Tisse Subject: Siemens Convetional Mevatron S9 Card cage Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2739.300 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_dSWOo3tYDQj81cEtSMbftQ) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable Hi All, If any of you guys have a spare S9 card cage for sale, please contact = me. Regards, Francis Tisse --Boundary_(ID_dSWOo3tYDQj81cEtSMbftQ) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable

Hi All,

If any of you guys have a spare S9 card = cage for=20 sale, please contact me.

Regards,

Francis = Tisse

--Boundary_(ID_dSWOo3tYDQj81cEtSMbftQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 08:33:57 -0400 From: neville.wiles@spectrum-health.org Subject: RE: 6ex flow IL Sender: owner-linac-eng@plato.aristotle.net To: lsullivan@bhcpns.org, linac-eng@plato.aristotle.net X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: 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_HuT8qwIseZAOnsYan4Ez0A) Content-type: text/plain; CHARSET=US-ASCII If this is a Siemens Check the water line at the target in 6E it could be pinching off as the slide moves. Simply pull back the slack by the ODI of the 2 clear lines. Neville Wiles -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of lsullivan@bhcpns.org Sent: Monday, June 14, 2004 7:21 PM To: linac-eng@plato.aristotle.net Subject: 6ex flow IL Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729 Thanks in advance Larry Sullivan Baptist Hospital 850-469-2200 _____ All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message. --Boundary_(ID_HuT8qwIseZAOnsYan4Ez0A) Content-type: text/html

If this is a Siemens Check the water line at the target in 6E it could be pinching off as the slide moves. Simply pull back the slack by the ODI of the 2 clear lines.

Neville Wiles

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of lsullivan@bhcpns.org
Sent: Monday, June 14, 2004 7:21 PM
To: linac-eng@plato.aristotle.net
Subject: 6ex flow IL

Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only

and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving

any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the

problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729

Thanks in advance
Larry Sullivan
Baptist Hospital
850-469-2200

All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message.

--Boundary_(ID_HuT8qwIseZAOnsYan4Ez0A)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 09:52:01 -0500 From: Tirabassi Michael Subject: RE: Flow Interlock Sender: owner-linac-eng@plato.aristotle.net To: lsullivan@bhcpns.org Cc: "Linac list (E-mail)" X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Morning, Used to have an old 6/100 that would give flow interlocks of the weird kind. Pressure switches were always the cause. Not sure if on a 6ex if the set up is the same but that would be the first thing I'd look at. I would jumper out one at a time to see which one was causing the intermittents. Have fun! MikeT. RCC From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 11:22:33 -0400 (EDT) From: GARRYANGEL@aol.com Subject: Looking for 2100C with MLC 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 X-Babyl-Labels: --Boundary_(ID_nfsdg+AUcpw2bO3SPREQQw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit I am looking for a used 2100 or 21EX with MLC prefer 6 & 15 X. I will also consider a later model 2100C without MLC. Please email info. Thank you in advance. Garry --Boundary_(ID_nfsdg+AUcpw2bO3SPREQQw) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

I am looking for a used 2100 or 21EX with MLC prefer 6 &= amp; 15 X. I will also consider a later model 2100C without MLC. Please= email info.

Thank you in advance.

Garry

--Boundary_(ID_nfsdg+AUcpw2bO3SPREQQw)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Tue, 15 Jun 2004 12:40:57 -0500 From: "Kyle, John" Subject: RE: 6ex flow IL Sender: owner-linac-eng@plato.aristotle.net To: lsullivan@bhcpns.org, linac-eng@plato.aristotle.net X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: 6ex flow IL Thread-Index: AcRShLfmfcOFLUtvTAiV40Sq9scozgAesZqw X-OriginalArrivalTime: 15 Jun 2004 17:40:58.0444 (UTC) FILETIME=[EAE830C0:01C452FF] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multi-part message in MIME format. --Boundary_(ID_Fpe5Icpdxwt4fx4CLg5r3A) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable I think I would replace the Flow Wheel. Maybe the angle is affecting the way it spins.=20 John Kyle=20 Coordinator=20 Technical Support Services=20 Brookwood Medical Center=20 205-877-1092=20 -----Original Message----- From: lsullivan@bhcpns.org [mailto:lsullivan@bhcpns.org]=20 Sent: Monday, June 14, 2004 6:21 PM To: linac-eng@plato.aristotle.net Subject: 6ex flow IL Good day all... Please help!!! I have an intermittent flow interlock which seems to occur at 270 deg a couple of times a day. We use the 6ex for imrt only=20 and when I check the flow AFC board none of the red indicator lamps are illuminated.. So far I can't duplicate by continuously rotating gantry or moving=20 any hoses or cables. I can pinch off hose and create the Fault, I have recalibrated the flow transducers and widened the tolerances slightly but the=20 problem seems to continue... It may happen 2 or 3 times a day or less and would appreciate any thoughts ... Serial # 729=20 Thanks in advance=20 Larry Sullivan=20 Baptist Hospital=20 850-469-2200=20 _____ =20 All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message. --Boundary_(ID_Fpe5Icpdxwt4fx4CLg5r3A) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

I=20 think I would replace the Flow Wheel. Maybe the angle is affecting the = way it=20 spins.

John Kyle
Coordinator
Technical = Support=20 Services
Brookwood Medical = Center=20
205-877-1092 =

-----Original Message-----
From:=20 lsullivan@bhcpns.org [mailto:lsullivan@bhcpns.org]
Sent: = Monday,=20 June 14, 2004 6:21 PM
To:=20 linac-eng@plato.aristotle.net
Subject: 6ex flow=20 IL

Good day = all... Please=20 help!!! I have an intermittent flow interlock which seems = to=20 occur at 270 deg a couple of times a day. We use the 6ex = for imrt=20 only

and when I check = the flow AFC=20 board none of the red indicator lamps are illuminated.. So far I = can't=20 duplicate by continuously rotating gantry or moving =

any hoses or cables. I can pinch off hose = and create=20 the Fault, I have recalibrated the flow transducers and widened = the=20 tolerances slightly but the

problem seems to continue... It may happen 2 or 3 times a day = or less=20 and would appreciate any thoughts ... Serial # 729=20

Thanks in = advance=20
Larry Sullivan
Baptist Hospital
850-469-2200=20

All electronic mail communications originating from or = transmitted=20 to Baptist Health Care, Inc. are subject to monitoring. This message = and the=20 information contained in it, which may consist of electronic data = attachments,=20 are the confidential and proprietary communications of Baptist Health = Care and=20 are intended to be received only by the individual or individuals to = whom the=20 message has been addressed. If the reader of this message is not the = intended=20 recipient, please take notice that any use, copying, printing, = forwarding or=20 distribution of this message, in any form, is strictly prohibited. If = you have=20 received this message in error, please immediately notify the Baptist = Health=20 Care Privacy Officer at (850) 434-4472 and/or forward the message to=20 hipaa@bhcpns.org and delete or destroy all copies of this=20 message.

--Boundary_(ID_Fpe5Icpdxwt4fx4CLg5r3A)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 16 Jun 2004 08:18:39 +0200 From: terence.kearey@orebroll.se Subject: RE: 6ex flow IL Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net X-OriginalArrivalTime: 16 Jun 2004 06:18:51.0531 (UTC) FILETIME=[CAFA9DB0:01C45369] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Another thought is that the interlock may be due to a real reduced flow. How old is the machine? The rubber hoses become cracked on the inside and this causes increased resistance and decreases the water flow. The flow wheel gauge in the gantry can give an indication of this if you have noted the initial mV and frequency. Any time after 3 years or thereabouts is time to change the hoses. The actual time may depend on water quality. Big job, lot of fun, especially near the target, you can either see the connections or feel them, not both at the same time. A generous time for this job would be 2 days for the change and repairing everything which you break in the process - it's practically unavoidable. My rule of thumb is to change hoses when the mV reading has reduced to about half. So it's not every 3 years it gets done... Regards Tel. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 16 Jun 2004 08:22:03 -0300 From: Scott Purcell Subject: Machines avaiable Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Content-disposition: inline X-Guinevere: 2.0.13 ; Capital District Hea X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hi to all, We here at the Nova Scotia Cancer Centre have just removed a Theratronics T1000 cobalt machine and will also be removing a Philips simulator SLS later this month. If anyone is interested these pieces of equipment you can contact me at this email address or at the information below. 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 Confidentiality: This email message may contain confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Email transmissions cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept any liability for errors or omissions in the contents of this message that arise as a result of email transmissions. If verification is required please request a hard copy version. From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 X-VM-v5-Data: ([nil t nil nil nil nil nil nil nil] ["3662" "Wednesday" "16" "June" "2004" "13:18:58" "-0500" "lsullivan@bhcpns.org" "lsullivan@bhcpns.org" nil "60" "RE: 6ex flow IL" nil nil nil "6" nil nil (number " " mark "U lsullivan@bhcpns. Jun 16 60/3662 " thread-indent "\"RE: 6ex flow IL\"\n") nil nil nil nil nil nil] nil) Date: Wed, 16 Jun 2004 13:18:58 -0500 From: lsullivan@bhcpns.org Subject: RE: 6ex flow IL In-reply-to: <959992E73874F24C846A9CEA66D10C283D1B34@rouge.orebroll.se> Sender: owner-linac-eng@plato.aristotle.net To: terence.kearey@orebroll.se Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net X-MIMETrack: Serialize by Router on BHCMail1/PNS/BHC_Notes(Release 6.5.1|January 21, 2004) at 06/16/2004 01:18:58 PM, Serialize complete at 06/16/2004 01:18:58 PM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: This is a multipart message in MIME format. --Boundary_(ID_TPstXS7FHqnSLCaCrQHDcQ) Content-type: text/plain; charset=US-ASCII To All ,, Thanks for the input I cleaned the flow sensors by removing and cleaning with mild detergent , with this I disconnected spade connectors and cleaned pins and now for second day I've not experienced and flow faults as of yet.... Since for a couple of weeks it was happening everyday this is progress... Thanks to all who replied. Larry Sullivan ----------------------------------------- All electronic mail communications originating from or transmitted to Baptist Health Care, Inc. are subject to monitoring. This message and the information contained in it, which may consist of electronic data attachments, are the confidential and proprietary communications of Baptist Health Care and are intended to be received only by the individual or individuals to whom the message has been addressed. If the reader of this message is not the intended recipient, please take notice that any use, copying, printing, forwarding or distribution of this message, in any form, is strictly prohibited. If you have received this message in error, please immediately notify the Baptist Health Care Privacy Officer at (850) 434-4472 and/or forward the message to hipaa@bhcpns.org and delete or destroy all copies of this message. --Boundary_(ID_TPstXS7FHqnSLCaCrQHDcQ) Content-type: text/html; charset=US-ASCII
To All ,, Thanks for the input I cleaned the flow sensors by removing and cleaning with mild detergent , with this I disconnected spade connectors and cleaned pins and now for second day I've not experienced and flow faults as of yet.... Since for a couple of weeks it was happening everyday this is progress...
Thanks to all who replied.

Larry Sullivan

--Boundary_(ID_TPstXS7FHqnSLCaCrQHDcQ)-- From "Babyl to mail by b2m" Thu Jun 17 10:22:29 2004 Date: Wed, 16 Jun 2004 15:05:47 -0500 From: Ken Allen Subject: IR Emitters Varian MMLC Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Content-disposition: inline X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Babyl-Labels: Hello List, Is anyone have a good source for the Optical IR emitters used on the MMLC calibration? I believe it has a part number of OD-88F1 made by Opto Diode Corp. Looking preferably for a Canadian distributor if possible. Thanks for your assistance. Ken Allen Nuclear Electronics Technologist CancerCare Manitoba Winnipeg, MB, Canada From VM Tue Jun 22 09:32:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3534" "Thursday" "17" "June" "2004" "08:31:53" "-0700" "Patrick Wong (VICC)" "PWong@bccancer.bc.ca" nil "97" "RE: IR Emitters Varian MMLC" "^From:" nil nil "6" nil nil (number " " mark " Patrick Wong (VIC Jun 17 97/3534 " thread-indent "\"RE: IR Emitters Varian MMLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZG0097BRLHNU@hubbard.azu.nl>; Thu, 17 Jun 2004 19:36:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004061719365432361 ; Thu, 17 Jun 2004 19:36:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA17594; Thu, 17 Jun 2004 19:37:30 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma017560; Thu, 17 Jun 2004 19:37:11 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA12620 for linac-eng-list; Thu, 17 Jun 2004 10:29:32 -0500 (CDT) Received: from cwav01.cw.bc.ca (mail2.cw.bc.ca [207.23.159.180]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id KAA12616 for ; Thu, 17 Jun 2004 10:29:31 -0500 (CDT) Received: From server17.bccancer.bc.ca ([205.233.164.254]) by cwav01.cw.bc.ca (WebShield SMTP v4.5 MR1a); id 1087486103789; Thu, 17 Jun 2004 08:28:23 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Thu, 17 Jun 2004 08:26:32 -0700 Message-id: <6BAF4D075F07D411B30900508B94CBA007A4F8C8@SERVER20> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_rGW7H3Oec7CVLry457eR7w)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Patrick Wong (VICC)" Sender: owner-linac-eng@plato.aristotle.net To: 'Ken Allen' , linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: RE: IR Emitters Varian MMLC Date: Thu, 17 Jun 2004 08:31:53 -0700 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_rGW7H3Oec7CVLry457eR7w) Content-type: text/plain; CHARSET=US-ASCII Hi Ken, This Led infared emitter diode can be order from Varian and It only cost $9.81usd. I couldn't found any canadian distributor (Electro-Sonic & Newark) or the US distributor, such as Digi-Key. I replace all the bad infared diodes for all our six MMLC syatem. If you can find one in Canada, just tell me and good luck and happy hunting. Patrick Wong C.T. Radiotherapy Service Technologist Vancouver Island Cancer Center 2410 Lee Avenue Victoria, British Coulmbia V8R 6V5 Canada Tel:(250)519-5500 Local373 Fax: (250)519-2024 -----Original Message----- From: Ken Allen [mailto:Ken.Allen@cancercare.mb.ca] Sent: Wednesday, June 16, 2004 1:06 PM To: linac-eng@plato.aristotle.net; canadalist@yahoogroups.com Subject: IR Emitters Varian MMLC Hello List, Is anyone have a good source for the Optical IR emitters used on the MMLC calibration? I believe it has a part number of OD-88F1 made by Opto Diode Corp. Looking preferably for a Canadian distributor if possible. Thanks for your assistance. Ken Allen Nuclear Electronics Technologist CancerCare Manitoba Winnipeg, MB, Canada --Boundary_(ID_rGW7H3Oec7CVLry457eR7w) Content-type: text/html RE: IR Emitters Varian MMLC

Hi Ken,
This Led infared emitter diode can be order from Varian and It only cost $9.81usd.
I couldn't found any canadian distributor (Electro-Sonic & Newark) or the US distributor, such as Digi-Key.
I replace all the bad infared diodes for all our six MMLC syatem.
If you can find one in Canada, just tell me and good luck and happy hunting.

Patrick Wong C.T.
Radiotherapy Service Technologist
Vancouver Island Cancer Center
2410 Lee Avenue
Victoria, British Coulmbia
V8R 6V5 Canada
Tel:(250)519-5500 Local373
Fax: (250)519-2024

-----Original Message-----
From: Ken Allen [mailto:Ken.Allen@cancercare.mb.ca]
Sent: Wednesday, June 16, 2004 1:06 PM
To: linac-eng@plato.aristotle.net; canadalist@yahoogroups.com
Subject: IR Emitters Varian MMLC

Hello List,
Is anyone have a good source for the Optical IR emitters used on the
MMLC calibration? I believe it has a part number of OD-88F1 made by
Opto Diode Corp. Looking preferably for a Canadian distributor if
possible. Thanks for your assistance.

Ken Allen
Nuclear Electronics Technologist
CancerCare Manitoba
Winnipeg, MB, Canada

--Boundary_(ID_rGW7H3Oec7CVLry457eR7w)-- From VM Tue Jun 22 09:32:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["810" "Thursday" "17" "June" "2004" "12:45:41" "-0400" "david hall" "hall.david@lycos.com" nil "30" "Re: IR Emitters Varian MMLC" "^From:" nil nil "6" nil nil (number " " mark " david hall Jun 17 30/810 " thread-indent "\"Re: IR Emitters Varian MMLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZG00F16ULE66@hubbard.azu.nl>; Thu, 17 Jun 2004 20:41:40 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004061720413700764 ; Thu, 17 Jun 2004 20:41:37 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA24840; Thu, 17 Jun 2004 20:42:14 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024826; Thu, 17 Jun 2004 20:42:08 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA14135 for linac-eng-list; Thu, 17 Jun 2004 11:46:32 -0500 (CDT) Received: from lycos.com (www2.mail.lycos.com [209.202.220.150]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA14131 for ; Thu, 17 Jun 2004 11:46:31 -0500 (CDT) Received: from Unknown/Local ([?.?.?.?]) by mailcity.com; Thu, 17 Jun 2004 16:45:41 +0000 Reply-to: hall.david@lycos.com Message-id: Organization: Lycos Mail (http://www.mail.lycos.com:80) MIME-version: 1.0 X-Mailer: MailCity Service Content-type: text/plain; charset=us-ascii Content-language: en Content-transfer-encoding: 7bit Precedence: bulk X-Sent-Mail: off X-Sender-Ip: 68.122.104.172 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 From: david hall Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, canadalist@yahoogroups.com, Ken Allen Subject: Re: IR Emitters Varian MMLC Date: Thu, 17 Jun 2004 12:45:41 -0400 RadParts has them, phone # 877 704-3838 Dave Hall -- --------- Original Message --------- DATE: Wed, 16 Jun 2004 15:05:47 From: "Ken Allen" To: , Cc: >Hello List, >Is anyone have a good source for the Optical IR emitters used on the >MMLC calibration? I believe it has a part number of OD-88F1 made by >Opto Diode Corp. Looking preferably for a Canadian distributor if >possible. Thanks for your assistance. > >Ken Allen >Nuclear Electronics Technologist >CancerCare Manitoba >Winnipeg, MB, Canada > > ____________________________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC=lycos10 From VM Tue Jun 22 09:32:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1650" "Thursday" "17" "June" "2004" "15:14:20" "-0300" "Scott Purcell" "Scott.Purcell@cdha.nshealth.ca" nil "44" "Re: IR Emitters Varian MMLC" "^From:" nil nil "6" nil nil (number " " mark " Scott Purcell Jun 17 44/1650 " thread-indent "\"Re: IR Emitters Varian MMLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZG00K3SY6LHV@hubbard.azu.nl>; Thu, 17 Jun 2004 21:59:10 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004061721590802199 ; Thu, 17 Jun 2004 21:59:08 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id VAA04195; Thu, 17 Jun 2004 21:59:44 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmae04174; Thu, 17 Jun 2004 21:59:20 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA15935 for linac-eng-list; Thu, 17 Jun 2004 13:14:44 -0500 (CDT) Received: from NGATE01.qe2-hsc.ns.ca (mail.sacentre.nshealth.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA15931 for ; Thu, 17 Jun 2004 13:14:41 -0500 (CDT) Received: from sdc_dom-MTA by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Thu, 17 Jun 2004 15:14:32 -0300 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.2 Beta Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-Guinevere: 2.0.13 ; Capital District Hea X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Scott Purcell Sender: owner-linac-eng@plato.aristotle.net To: Ken.Allen@cancercare.mb.ca, linac-eng@plato.aristotle.net, canadalist@yahoogroups.com Subject: Re: IR Emitters Varian MMLC Date: Thu, 17 Jun 2004 15:14:20 -0300 You can order them direct form Opto Diode corp. @ $4.00 ea and there is a $50 min order if you used the net and a $100.00 min order if you call. I can't explain this. There web site is www.optodiode.com and the number is 805-499-0335. 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 >>> "Ken Allen" 06/16/04 05:05PM >>> Hello List, Is anyone have a good source for the Optical IR emitters used on the MMLC calibration? I believe it has a part number of OD-88F1 made by Opto Diode Corp. Looking preferably for a Canadian distributor if possible. Thanks for your assistance. Ken Allen Nuclear Electronics Technologist CancerCare Manitoba Winnipeg, MB, Canada Confidentiality: This email message may contain confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Email transmissions cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept any liability for errors or omissions in the contents of this message that arise as a result of email transmissions. If verification is required please request a hard copy version. From VM Tue Jun 22 09:32:40 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1257" "Friday" "18" "June" "2004" "14:32:43" "-0400" "Peter Vitali" "peter.vitali@yale.edu" nil "35" "RJ45 Connector" "^From:" nil nil "6" nil nil (number " " mark " Peter Vitali Jun 18 35/1257 " thread-indent "\"RJ45 Connector\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZI00JVHV26ES@hubbard.azu.nl>; Fri, 18 Jun 2004 22:46:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004061822465400707 ; Fri, 18 Jun 2004 22:46:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA14110; Fri, 18 Jun 2004 22:47:32 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmac14059; Fri, 18 Jun 2004 22:46:59 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA14186 for linac-eng-list; Fri, 18 Jun 2004 13:31:29 -0500 (CDT) 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 NAA14182 for ; Fri, 18 Jun 2004 13:31:27 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.1-1 #30532) with ESMTP id <01LBG2AGV26200CIKB@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Fri, 18 Jun 2004 14:29:51 -0400 (EDT) Message-id: <40D334DD.1BE0C155@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.76 (Macintosh; U; PPC) Content-type: text/plain; charset=us-ascii; x-mac-type=54455854; x-mac-creator=4D4F5353 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 From: Peter Vitali Sender: owner-linac-eng@plato.aristotle.net To: "Linac-Engineers, Listserver Mess" Subject: RJ45 Connector Date: Fri, 18 Jun 2004 14:32:43 -0400 Good Day all? Varian has stopped stocking and selling the RJ45 Connector (Part number: 5146300400) located at the foot of the ETR couches. It is an 8 Pin RJ45 with about 6 Inch leads (15 cm) with very small spade lugs on them. I know where to get the connector without the spade lugs on them but the wire colors are different from the ones Varian Used. (Guess I am getting Lazy in my old age). Has anyone found the connectors with spade lugs on them from another supplier? Lately, Last year or so we have been having them destroyed. Do not know whether it is the building service person with a buffer or staff with platform shoes. At one point I had to put a guard around one of the connectors. It seems that what is happening is that the cable and plug is being pushed in violently or side ways violently. When I remove the pieces, the plastic housing is usually cracked into 3 or 4 pieces or the contact wires are pushed in. Thanks for the help. 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... From VM Tue Jun 22 09:32:41 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["6250" "Saturday" "19" "June" "2004" "16:14:37" "-0300" "David Burgess" "David.Burgess@cdha.nshealth.ca" nil "138" "Re: RJ45 Connector" "^From:" nil nil "6" nil nil (number " " mark " David Burgess Jun 19 138/6250 " thread-indent "\"Re: RJ45 Connector\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZL00CDB8U731@hubbard.azu.nl>; Sun, 20 Jun 2004 05:39:46 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062005394319667 ; Sun, 20 Jun 2004 05:39:43 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id FAA02007; Sun, 20 Jun 2004 05:40:21 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma001983; Sun, 20 Jun 2004 05:40:11 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id UAA10220 for linac-eng-list; Sat, 19 Jun 2004 20:10:22 -0500 (CDT) Received: from NGATE01.qe2-hsc.ns.ca (mail.pcdhatest.nshealth.ca [142.176.37.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id UAA10216 for ; Sat, 19 Jun 2004 20:10:18 -0500 (CDT) Received: from sdc_dom-MTA by NGATE01.qe2-hsc.ns.ca with Novell_GroupWise; Sat, 19 Jun 2004 16:14:45 -0300 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.2 Beta Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_qr1zF89bbbD+K+Z3PBNZnA)" Precedence: bulk X-Guinevere: 2.0.13 ; Capital District Hea X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: David Burgess Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, peter.vitali@yale.edu Subject: Re: RJ45 Connector Date: Sat, 19 Jun 2004 16:14:37 -0300 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_qr1zF89bbbD+K+Z3PBNZnA) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit I don't have a supplier for you, but I agree that the connectors get pushed in. A guard and a clamp on the pendant coil cord near the connector will save you a lot of knee work. Best regards David Burgess Nova Scotia Cancer Centre >>> Peter Vitali 6/18/2004 3:32:43 PM >>> Good Day all? Varian has stopped stocking and selling the RJ45 Connector (Part number: 5146300400) located at the foot of the ETR couches. It is an 8 Pin RJ45 with about 6 Inch leads (15 cm) with very small spade lugs on them. I know where to get the connector without the spade lugs on them but the wire colors are different from the ones Varian Used. (Guess I am getting Lazy in my old age). Has anyone found the connectors with spade lugs on them from another supplier? Lately, Last year or so we have been having them destroyed. Do not know whether it is the building service person with a buffer or staff with platform shoes. At one point I had to put a guard around one of the connectors. It seems that what is happening is that the cable and plug is being pushed in violently or side ways violently. When I remove the pieces, the plastic housing is usually cracked into 3 or 4 pieces or the contact wires are pushed in. Thanks for the help. 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... Confidentiality: This email message may contain confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Email transmissions cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept any liability for errors or omissions in the contents of this message that arise as a result of email transmissions. If verification is required please request a hard copy version. --Boundary_(ID_qr1zF89bbbD+K+Z3PBNZnA) Content-type: text/html; charset=ISO-8859-1 Content-description: HTML Content-transfer-encoding: quoted-printable

I don't have a supplier for = you, but I=20 agree that the connectors get pushed in.

A guard and a clamp on = the=20 pendant coil cord near the connector will save you a lot of knee=20 work.

Best regards

David Burgess

Nova Scotia Cancer=20 Centre

>>> Peter Vitali <peter.vitali@yale.edu>= ;=20 6/18/2004 3:32:43 PM >>>
Good Day all?

Varian has = stopped=20 stocking and selling the RJ45 Connector (Part
number: 5146300400)= =20 located at the foot of the ETR couches.   It is an
8 Pin RJ45 = with=20 about 6 Inch leads (15 cm) with very small spade lugs on
them. I = know=20 where to get the connector without the spade lugs on them
but the wire = colors=20 are different from the ones Varian Used. (Guess I
am getting Lazy = in my=20 old age). Has anyone found the connectors with
spade lugs on them = from=20 another supplier?

Lately, Last year or so we have been having = them=20 destroyed. Do not know
whether it is the building service person = with a=20 buffer or staff with
platform shoes. At one point I had to put a = guard=20 around one of the
connectors. It seems that what is happening is = that=20 the cable and plug
is being pushed in violently or side ways violently. = When=20 I remove the
pieces, the plastic housing is usually cracked into 3 or = 4=20 pieces or the
contact wires are pushed in.

Thanks for the=20 help.

Peter E. Vitali, CBET
Therapeutic Radiological Engineer
= Yale=20 New Haven Hospital
20 York Street,    HRT 22
New = Haven,=20 CT. 06504
Phone:   (203)=20 688-2948
FAX:     (203)=20 688-3663
E-mail:    peter.vitali@yale.edu

As = usual,=20 everything I say may be plausibly denied at my=20 employer's
convenience...

Confidentiality: This email message may contain confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this email. Please notify the sender immediately by email if you have received this email by mistake and delete this email from your system. Email transmissions cannot be guaranteed to be secure or error free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or contain viruses. The sender therefore does not accept any liability for errors or omissions in the contents of this message that arise as a result of email transmissions. If verification is required please request a hard copy version.

--Boundary_(ID_qr1zF89bbbD+K+Z3PBNZnA)-- From VM Tue Jun 22 09:32:41 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["894" "Monday" "21" "June" "2004" "13:29:07" "+1200" "Dave Pinchin" "Dave.Pinchin@cdhb.govt.nz" nil "21" "RT100 parts." "^From:" nil nil "6" nil nil (number " " mark " Dave Pinchin Jun 21 21/894 " thread-indent "\"RT100 parts.\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZN00LG14CKLH@hubbard.azu.nl>; Mon, 21 Jun 2004 05:57:58 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062105575403720 ; Mon, 21 Jun 2004 05:57:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id FAA29320; Mon, 21 Jun 2004 05:58:34 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma029298; Mon, 21 Jun 2004 05:58:31 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA27979 for linac-eng-list; Sun, 20 Jun 2004 21:04:39 -0500 (CDT) Received: from gandalf.chhlth.govt.nz ([159.117.1.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA27975 for ; Sun, 20 Jun 2004 21:04:36 -0500 (CDT) Received: from NTCHAVIMSS (ntchavimss.chhlth.govt.nz [159.117.27.250]) by gandalf.chhlth.govt.nz (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id i5L28kUh009224 for ; Mon, 21 Jun 2004 14:08:47 +1200 Received: from SMTPGATE.CHHLTH.GOVT.NZ ([159.117.20.14]) by NTCHAVIMSS with InterScan Messaging Security Suite; Mon, 21 Jun 2004 13:29:22 +1200 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Mon, 21 Jun 2004 13:29:22 +1200 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.4 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 8bit Precedence: bulk X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id VAA27976 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dave Pinchin Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RT100 parts. Date: Mon, 21 Jun 2004 13:29:07 +1200 G'day, I'm after a RT100 cooling pump unit. Any voltage OK. Must have good motor, pump and box. Don't care about radiator or reservoir tank. 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 ********************************************************************** From VM Tue Jun 22 09:32:42 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1676" "Monday" "21" "June" "2004" "15:17:52" "-0400" "Mlaa@aol.com" "Mlaa@aol.com" nil "37" "600c file processing error" "^From:" nil nil "6" nil nil (number " " mark " Mlaa@aol.com Jun 21 37/1676 " thread-indent "\"600c file processing error\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZO00J46FYHHT@hubbard.azu.nl>; Mon, 21 Jun 2004 23:06:23 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062123062103530 ; Mon, 21 Jun 2004 23:06:21 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA18508; Mon, 21 Jun 2004 23:07:01 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma018446; Mon, 21 Jun 2004 23:06:29 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA14815 for linac-eng-list; Mon, 21 Jun 2004 14:18:28 -0500 (CDT) Received: from imo-m23.mx.aol.com (imo-m23.mx.aol.com [64.12.137.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA14811 for ; Mon, 21 Jun 2004 14:18:27 -0500 (CDT) Received: from Mlaa@aol.com by imo-m23.mx.aol.com (mail_out_v37_r2.6.) id y.cc.2d99ee94 (25305) for ; Mon, 21 Jun 2004 15:17:52 -0400 (EDT) Message-id: MIME-version: 1.0 X-Mailer: 9.0 for Windows sub 5031 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_TH81f+THhmUdbIDfN7xviA)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: 600c file processing error Date: Mon, 21 Jun 2004 15:17:52 -0400 (EDT) --Boundary_(ID_TH81f+THhmUdbIDfN7xviA) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello to all, I have a problem I hope that someone can help with. I have a 600c that when in the service mode shows a "File Processing Error" screen, with cause "Saving Diagnostic Files". It is annoying because it is always present when in the service mode. I went into DOS and did a "del dd.*" which did clear out the event logs. However the Saving Diagnostic Screen did not go away. Any thoughts and suggestions would be helpful. Thanks in advance, Mike Liddicote Accelerator Associates --Boundary_(ID_TH81f+THhmUdbIDfN7xviA) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello to all,

I have a problem I hope that someone can help with.&= nbsp; I have a 600c that when in the service mode shows a "File Process= ing Error" screen, with cause "Saving Diagnostic Files". It is annoyin= g because it is always present when in the service mode. I went into D= OS and did a "del dd.*" which did clear out the event logs. = However the Saving Diagnostic Screen did not go away. Any thoughts an= d suggestions would be helpful. Thanks in advance,

Mike Liddicote

Accelerator Associates

--Boundary_(ID_TH81f+THhmUdbIDfN7xviA)-- From VM Wed Jun 23 07:20:17 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["443" "Tuesday" "22" "June" "2004" "13:56:30" "-0400" "Chippett, Sheldon" "sheldon_chippett@wrh.on.ca" nil "23" "Siemens Primus Gantry Drive Clutch" "^From:" nil nil "6" nil nil (number " " mark " Chippett, Sheldon Jun 22 23/443 " thread-indent "\"Siemens Primus Gantry Drive Clutch\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZQ00D188JXB6@hubbard.azu.nl>; Tue, 22 Jun 2004 22:21:38 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062222213410592 ; Tue, 22 Jun 2004 22:21:34 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA15037; Tue, 22 Jun 2004 22:22:14 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma014955; Tue, 22 Jun 2004 22:21:42 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA07342 for linac-eng-list; Tue, 22 Jun 2004 12:57:28 -0500 (CDT) Received: from wrhmail1.WRH (w82.wednet.on.ca [209.202.75.82]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA07338 for ; Tue, 22 Jun 2004 12:57:26 -0500 (CDT) Received: by WRHMAIL1 with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jun 2004 13:56:30 -0400 Received: by WRHMAIL1 with Internet Mail Service (5.5.2653.19) id ; Tue, 22 Jun 2004 13:35:30 -0400 Message-id: <331EE6D48DDFD51189E500508BBD36080259E6A2@WRHMAIL1> 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 From: "Chippett, Sheldon" Sender: owner-linac-eng@plato.aristotle.net To: "'linag-eng@plato.aristotle.net'" Subject: Siemens Primus Gantry Drive Clutch Date: Tue, 22 Jun 2004 13:56:30 -0400 I recently replaced the gantry drive clutch on one of our Primus units (serial # 3291) and I am now in the process of replacing the fiber disks on the old clutch. Does anyone know the torque specification for the nut? Thanks in advance, Sheldon Sheldon Chippett Senior Accelerator Technologist Windsor Regional Cancer Services Windsor, Ontario Canada Phone: 519-253-3191 Ext. 58555 Fax: 519-255-8679 Email: sheldon_chippett@wrh.on.ca From VM Wed Jun 23 08:43:38 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["6971" "Wednesday" "23" "June" "2004" "11:32:38" "+0800" "=?big5?B?ZmFpY2hpY2hhbg==?=" "faichichan@sinaman.com" nil "102" "=?big5?B?UHJvYmxlbXMgb2YgRWxla3RhIFNMMTU=?=" "^From:" nil nil "6" nil nil (number " " mark " =?big5?B?ZmFpY2hpY2hhbg==?= Jun 23 102/6971 " thread-indent "\"=?big5?B?UHJvYmxlbXMgb2YgRWxla3RhIFNMMTU=?=\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZQ009EHY1Q9D@hubbard.azu.nl>; Wed, 23 Jun 2004 07:32:31 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with 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HAA02001; Wed, 23 Jun 2004 07:34:16 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma001973; Wed, 23 Jun 2004 07:33:47 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id WAA18492 for linac-eng-list; Tue, 22 Jun 2004 22:40:45 -0500 (CDT) Received: from ismssclu1.umcaz.edu (smtp.umcaz.edu [198.60.159.10]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id WAA18488 for ; Tue, 22 Jun 2004 22:40:43 -0500 (CDT) Received: from xchange2k.umcaz.edu ([170.87.50.78]) by ismssclu1 with trend_ isnt_name_B; Tue, 22 Jun 2004 20:40:02 -0700 Message-id: <9AE191E1E625364CA06663EA6752085947788F@xchange2k> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message Thread-Topic: patriotism Thread-Index: AcRY0zlz6MdxT0cEQxqbRQyl0VenywAAB2Yw X-imss-version: 2.0 X-imss-result: Passed X-imss-scores: Clean:5.4039 C:20 M:1 S:5 R:5 X-imss-settings: Baseline:1 C:1 M:1 S:1 R:1 (0.0000 0.0000) X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id WAA18489 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Martinez, Tom" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: FW: patriotism Date: Tue, 22 Jun 2004 20:40:12 -0700 > http://www.mightyhorn.com/embed.php?sid= > Please excuse the non-technical nature of this email but with Independence Day coming up I thought this would be ok. It is an awesome rendition of America the Beautiful with a short film showing various scenes of America, and proud to say, the Beautiful. If not interested please just delete, not intended to incite commentaries, positive, negative, or otherwise, just wanted to share a truly awesome work, musically and theatrically. Thanks, enjoy. From VM Wed Jun 23 13:59:10 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1098" "Wednesday" "23" "June" "2004" "02:57:20" "-0400" "Mlaa@aol.com" "Mlaa@aol.com" nil "30" "Image Intensifier Camera" "^From:" nil nil "6" nil nil (number " " mark " Mlaa@aol.com Jun 23 30/1098 " thread-indent "\"Image Intensifier Camera\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZR001X07NHRP@hubbard.azu.nl>; Wed, 23 Jun 2004 11:00:31 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062311002724490 ; Wed, 23 Jun 2004 11:00:27 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id LAA17567; Wed, 23 Jun 2004 11:01:08 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma017481; Wed, 23 Jun 2004 11:00:38 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA21551 for linac-eng-list; Wed, 23 Jun 2004 01:57:58 -0500 (CDT) 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 BAA21547 for ; Wed, 23 Jun 2004 01:57:57 -0500 (CDT) Received: from Mlaa@aol.com by imo-d06.mx.aol.com (mail_out_v37_r2.6.) id y.12e.44b82664 (4238) for ; Wed, 23 Jun 2004 02:57:20 -0400 (EDT) Message-id: <12e.44b82664.2e0a83d0@aol.com> MIME-version: 1.0 X-Mailer: 9.0 for Windows sub 5031 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_xtqJA9eM/BH/rSpZV0fXAg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Image Intensifier Camera Date: Wed, 23 Jun 2004 02:57:20 -0400 (EDT) --Boundary_(ID_xtqJA9eM/BH/rSpZV0fXAg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello to all on list, Does anyone know of a source for a camera for an II tube? I have one that has failed, (I believe it is a Precise Optics camera) any help would be appreciated. Thanks, Mike Liddicote Accelerator Associates --Boundary_(ID_xtqJA9eM/BH/rSpZV0fXAg) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello to all on list,

Does anyone know of a source for a camera for an II=20= tube? I have one that has failed, (I believe it is a Precise Optics ca= mera) any help would be appreciated. Thanks,

Mike Liddicote

Accelerator Associates

--Boundary_(ID_xtqJA9eM/BH/rSpZV0fXAg)-- From VM Wed Jun 23 13:59:10 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["399" "Wednesday" "23" "June" "2004" "16:41:58" "+0800" "=?big5?B?ZmFpY2hpY2hhbg==?=" "faichichan@sinaman.com" nil "15" "=?big5?B?UkU6NjAwYyBmaWxlIHByb2Nlc3NpbmcgZXJyb3I=?=" "^From:" nil nil "6" nil nil (number " " mark " =?big5?B?ZmFpY2hpY2hhbg==?= Jun 23 15/399 " thread-indent "\"=?big5?B?UkU6NjAwYyBmaWxlIHByb2Nlc3NpbmcgZXJyb3I=?=\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZR00ABGCRMIN@hubbard.azu.nl>; Wed, 23 Jun 2004 12:50:21 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062312501528097 ; Wed, 23 Jun 2004 12:50:15 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id MAA07577; Wed, 23 Jun 2004 12:50:55 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma007393; Wed, 23 Jun 2004 12:50:03 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA24535 for linac-eng-list; Wed, 23 Jun 2004 03:50:00 -0500 (CDT) Received: from hk.sina.com.hk ([202.85.139.116]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA24527 for ; Wed, 23 Jun 2004 03:49:49 -0500 (CDT) Received: (qmail 29716 invoked by uid 99); Wed, 23 Jun 2004 08:41:58 +0000 Message-id: <20040623084158.29715.qmail@hk.sina.com.hk> MIME-version: 1.0 Content-type: text/plain; charset=big5 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 From: =?big5?B?ZmFpY2hpY2hhbg==?= Sender: owner-linac-eng@plato.aristotle.net To: Mlaa@aol.com, linac-eng@plato.aristotle.net Subject: =?big5?B?UkU6NjAwYyBmaWxlIHByb2Nlc3NpbmcgZXJyb3I=?= Date: Wed, 23 Jun 2004 16:41:58 +0800 >Hi: Try to remove or rename Event directory and then create new directory. fai ========================================================================================== ��K�O�H�ɾǭ^�y�M��q�� - http://adimages.sina.com.hk/Lingua_0604.html �B�E�s�s�H��¤H �{��s�� - http://ent.sina.com.hk/focus/music/startup/ �ڬw��a�׳̷s�Ա�+��䴩�A�� - http://sms.sina.com.hk/euro2004.html From VM Wed Jun 23 15:05:55 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1222" "Wednesday" "23" "June" "2004" "11:36:22" "+0100" "Chris Forrest" "Chris.Forrest@leedsth.nhs.uk" nil "41" "Re: Problems of Elekta SL15" "^From:" nil nil "6" nil nil (number " " mark " Chris Forrest Jun 23 41/1222 " thread-indent "\"Re: Problems of Elekta SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZR002EJI149V@hubbard.azu.nl>; Wed, 23 Jun 2004 14:44:11 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062314440032644 ; Wed, 23 Jun 2004 14:44:00 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id OAA02141; Wed, 23 Jun 2004 14:44:41 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002029; Wed, 23 Jun 2004 14:44:07 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA25779 for linac-eng-list; Wed, 23 Jun 2004 05:37:14 -0500 (CDT) Received: from mail20.nhs.uk (mail20.nhs.uk [62.6.139.212]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA25775 for ; Wed, 23 Jun 2004 05:37:12 -0500 (CDT) Received: from [10.191.254.3] (helo=relayint1.nhs.uk) by mail20.nhs.uk with esmtp (MTC MTA) id 1Bd57S-0001wx-0a for linac-eng@plato.aristotle.net; Wed, 23 Jun 2004 11:36:42 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 7.0.008) id 40926E2F00C6CA33 for linac-eng@plato.aristotle.net; Wed, 23 Jun 2004 11:36:41 +0100 Received: from smtp.leedsth.nhs.uk (163.160.107.2) by relay.nhs.uk (Syntegra-1 7.0.008) (authenticated as smtp_leedsth_nhs_uk@es2002.nhs.uk) id 40D954ED00006D14 for linac-eng@plato.aristotle.net; Wed, 23 Jun 2004 11:36:41 +0100 Received: from LTH-MTA by smtp.leedsth.nhs.uk with Novell_GroupWise; Wed, 23 Jun 2004 11:36:38 +0100 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: 8bit Precedence: bulk X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id FAA25776 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Chris Forrest Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, faichichan@sinaman.com Subject: Re: Problems of Elekta SL15 Date: Wed, 23 Jun 2004 11:36:22 +0100 Fai, Does this problem only occur during beam on? If so I have seen a similar problem to this when the processor blanking pulse goes missing. This signal from linac to control cabinet (Javelin?) pauses the processor activity during the Thyratron pulse. If the blanking signal is missing, noise from the modulator causes spurious readings from the linac. Water temp is a common one. Check the continuity of the serial link cables where it passes through the cable reeling drum. You may find one conductor o/c or hi Z. Use the floppy calblocks backup you made just before you attempted the restore from tape ;-) Good luck, Chris Chris Forrest Technical Specialist Radiotherapy Technology Services Department of Medical Physics & Engineering Leeds Teaching Hospitals NHS Trust Cookridge Hospital Hospital Lane Leeds LS16 6QB UK Tel. +44 113 3924354 Fax. +44 113 3924122 >>> "faichichan" 23/06/2004 04:32:38 >>> ========================================================================================== - http://adimages.sina.com.hk/Lingua_0604.html - http://ent.sina.com.hk/focus/music/startup/ + - http://sms.sina.com.hk/euro2004.html From VM Thu Jun 24 09:00:43 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1845" "Wednesday" "23" "June" "2004" "10:01:41" "-0600" "Steve Davis" "steved@nmohc.com" nil "53" "IMRT QA" "^From:" nil nil "6" nil nil (number " " mark " Steve Davis Jun 23 53/1845 " thread-indent "\"IMRT QA\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZR003J6WJXM1@hubbard.azu.nl>; Wed, 23 Jun 2004 19:57:35 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062319573309462 ; Wed, 23 Jun 2004 19:57:33 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA25587; Wed, 23 Jun 2004 19:58:14 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma025557; Wed, 23 Jun 2004 19:57:49 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA04429 for linac-eng-list; Wed, 23 Jun 2004 10:57:03 -0500 (CDT) Received: from vhost01.spinn.net (vhost01.spinn.net [216.223.237.32]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA04425 for ; Wed, 23 Jun 2004 10:57:00 -0500 (CDT) Received: from LT7 ([216.223.230.38]) by vhost01.spinn.net (8.11.6/8.11.6) with SMTP id i5NGi8P31405 for ; Wed, 23 Jun 2004 09:44:08 -0700 Message-id: <000801c4593b$5fd147f0$91c8a8c0@nmohc.com> MIME-version: 1.0 X-Mailer: Microsoft Outlook Express 6.00.2800.1158 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_O+mkyjakTeTkAsKijcM68w)" Precedence: bulk X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 From: Steve Davis Sender: owner-linac-eng@plato.aristotle.net To: "Linac Eng (E-mail)" Subject: IMRT QA Date: Wed, 23 Jun 2004 10:01:41 -0600 This is a multi-part message in MIME format. --Boundary_(ID_O+mkyjakTeTkAsKijcM68w) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable Hello all, Our facility is in the process of purchasing an IMRT QA Profiler and = were wondering if any of you had experience with PTW or the Sun Nuclear = devices. Your comments and experiences would be immensely appreciated = and will be held in confidence. Thank you, Steve Davis New Mexico Oncology Hematology Consultants. 4901 Lang Ave. NE Albuquerque, N.M. 87109=20 505-379-7665 steved@nmohc.com --Boundary_(ID_O+mkyjakTeTkAsKijcM68w) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable

Hello all,

Our facility is in the process of = purchasing an=20 IMRT QA Profiler and were wondering if any of you had experience with = PTW or the=20 Sun Nuclear devices. Your comments and experiences would be immensely=20 appreciated and will be held in confidence.

Thank you,

Steve Davis
New Mexico Oncology = Hematology=20 Consultants.
4901 Lang Ave. NE
Albuquerque, N.M. 87109=20
505-379-7665
steved@nmohc.com

= --Boundary_(ID_O+mkyjakTeTkAsKijcM68w)-- From VM Thu Jun 24 09:00:43 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7456" "Wednesday" "23" "June" "2004" "10:29:07" "-0400" "Timothy Forsgren" "tforsgren@msn.com" nil "124" "Re: Problems of Elekta SL15" "^From:" nil nil "6" nil nil (number " " mark " Timothy Forsgren Jun 23 124/7456 " thread-indent "\"Re: Problems of Elekta SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZS00MIR8JGGA@hubbard.azu.nl>; Thu, 24 Jun 2004 00:16:32 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062400162714008 ; Thu, 24 Jun 2004 00:16:27 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA25780; Thu, 24 Jun 2004 00:17:09 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma025760; Thu, 24 Jun 2004 00:16:55 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA07808 for linac-eng-list; Wed, 23 Jun 2004 15:12:54 -0500 (CDT) Received: from BAY0-HMR15.phx.gbl (bay0-hmr15.bay0.hotmail.com [65.54.241.214]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA07713 for ; Wed, 23 Jun 2004 15:04:20 -0500 (CDT) Received: from hotmail.com ([65.54.168.110]) by BAY0-HMR15.phx.gbl with Microsoft SMTPSVC(5.0.2195.6713); Wed, 23 Jun 2004 07:41:21 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 23 Jun 2004 07:29:13 -0700 Received: from 4.161.147.122 by bay3-dav6.bay3.hotmail.com with DAV; Wed, 23 Jun 2004 14:29:12 +0000 X-Sender: tforsgren@msn.com Message-id: MIME-version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_CyrcgCGyu4jFlpgztAbvPA)" Precedence: bulk X-Originating-IP: [4.161.147.122] X-Originating-Email: [tforsgren@msn.com] X-OriginalArrivalTime: 23 Jun 2004 14:29:13.0241 (UTC) FILETIME=[74938890:01C4592E] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Timothy Forsgren Sender: owner-linac-eng@plato.aristotle.net To: faichichan , linac-eng@plato.aristotle.net Subject: Re: Problems of Elekta SL15 Date: Wed, 23 Jun 2004 10:29:07 -0400 --Boundary_(ID_CyrcgCGyu4jFlpgztAbvPA) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable Does this happen on only one energy, or across the board? Make sure the m= onitor values for HP Phase and LP Phase are matched to the actual value (= used to be on page 8 in service on pre desktop models). Good luck ----- Original Message ----- From: faichichan Sent: Wednesday, June 23, 2004 1:15 AM To: linac-eng@plato.aristotle.net Subject: Problems of Elekta SL15 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8=E6=99=82=E5=AD=B8=E8=8B=B1=E8= =AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 - http://adimages.sina.com.hk/Lingua_0604.html =E5=8A=89=E6=B5=A9=E9=BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA = =E7=8F=BE=E8=BA=AB=E6=96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 - http://ent.sina.com.hk/focus/music/startup/ =E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C=80=E6=96=B0=E6=88=B0=E6= =83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C=8D=E5=8B=99 - http://sms.sina.com.hk/euro2004.html Hi everybody on list: =20 Recently, Elekta SL15 has three intermittent interlocks that are Hp phase= position, Lp phase position & Water temperature happen at a glance and t= hen disappear. The signals of them are from HT control area. So I have ch= anged PCBs: AI12, SCC ( U & V ) and two PSU at HT control unit and have c= hecked voltage of the signals, which all are quiet stable. Therefore susp= ect it may be software problem, I have tried to restore full backup from = tape to a new hard disk. First have made a copy of backup to tape of Test= ID, Customizing & Calibration in service mode and Patient, Customizing &= Calibration in clinical mode. Then restore an ancient full backup tape t= o new hard disk and restore data from just created backup tape without an= y error message. But only the patient files are updated. The data of Cali= bration is not current settings. It needs me to update them manually. Why= ? How can I restore Calibration block? The software version of Elekta SL1= 5 is R3.1.0. Even replaced new hard disk, the intermittent interlocks sti= ll happen. What should I do next? Please help. =20 =20 Fai ] --Boundary_(ID_CyrcgCGyu4jFlpgztAbvPA) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable

Does this happ= en on only one energy, or across the board? Make sure the monitor values = for HP Phase and LP Phase are matched to the actual value (used to be on = page 8 in service on pre desktop models). Good luck

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

From: faichichan
Sent: Wednesday, June 23, 200= 4 1:15 AM

To: linac-eng@plat= o.aristotle.net

Subject: Pro= blems of Elekta SL15

=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D
=E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8= =E6=99=82=E5=AD=B8=E8=8B=B1=E8=AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 = -
http://adimages.sina.com.hk/Lingua_0604.html
=E5=8A=89=E6=B5=A9=E9= =BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA =E7=8F=BE=E8=BA=AB=E6= =96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 -
http://ent.sina.com.hk/fo= cus/music/startup/
=E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C= =80=E6=96=B0=E6=88=B0=E6=83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C= =8D=E5=8B=99 -
http://sms.sina.com.hk/euro2004.html

Hi everybody on list:=

Recently, Elekta SL15 has= three intermittent interlocks that are Hp phase position, Lp phase posit= ion & Water temperature happen at a glance and then disappear. The si= gnals of them are from HT control area. So I have changed PCBs: AI12, SCC= ( U & V ) and two PSU at HT control unit and have checked voltage of= the signals, which all are quiet stable. Therefore suspect it may be sof= tware problem, I have tried to restore full backup from tape to a new har= d disk. First have made a copy of backup to tape of Test ID, Customizing = & Calibration in service mode and Patient, Customizing & Calibrat= ion in clinical mode. Then restore an ancient full backup tape to new har= d disk and restore data from just created backup tape without any error m= essage. But only the patient files are updated. The data of Calibration i= s not current settings. It needs me to update them manually. Why? How can= I restore Calibration block? The software version of Elekta SL15 is R3.1= 0. Even replaced new hard disk, the intermittent interlocks still happen= What should I do next? Please help.

Fai

]
=

--Boundary_(ID_CyrcgCGyu4jFlpgztAbvPA)-- From VM Thu Jun 24 09:00:43 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3598" "Wednesday" "23" "June" "2004" "14:49:15" "-0700" "Denny Yu" "DYu@bccancer.bc.ca" nil "101" "RE: Problems of Elekta SL15" "^From:" nil nil "6" nil nil (number " " mark " Denny Yu Jun 23 101/3598 " thread-indent "\"RE: Problems of Elekta SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZS001YEC3QA1@hubbard.azu.nl>; Thu, 24 Jun 2004 01:33:28 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062401332515090 ; Thu, 24 Jun 2004 01:33:25 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id BAA02921; Thu, 24 Jun 2004 01:34:06 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002890; Thu, 24 Jun 2004 01:33:34 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA12029 for linac-eng-list; Wed, 23 Jun 2004 16:46:53 -0500 (CDT) Received: from cwav01.cw.bc.ca (mail2.cw.bc.ca [207.23.159.180]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA12025 for ; Wed, 23 Jun 2004 16:46:49 -0500 (CDT) Received: From server17.bccancer.bc.ca ([205.233.164.254]) by cwav01.cw.bc.ca (WebShield SMTP v4.5 MR1a); id 1088027144999; Wed, 23 Jun 2004 14:45:44 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id ; Wed, 23 Jun 2004 14:43:35 -0700 Message-id: <6BAF4D075F07D411B30900508B94CBA012B03AF5@SERVER20> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_heUYhWRfIpDqd5woVpaKnQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Denny Yu Sender: owner-linac-eng@plato.aristotle.net To: 'faichichan' , linac-eng@plato.aristotle.net Subject: RE: Problems of Elekta SL15 Date: Wed, 23 Jun 2004 14:49:15 -0700 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_heUYhWRfIpDqd5woVpaKnQ) Content-type: text/plain; charset=iso-2022-jp Our SL20 (RTD desktop)had a similar problem a month ago, intermittently beam terminated abnormally. Our debug terminal logged "HP position" . However, I noticed our item 223 was running a bit high, ie 31-32C or higher. It turned out (I thought? ) to be the external cooling water was pretty warm and once we dropped the water temperature down, this problem has disappeared for over a month. Denny Yu B.C. Cancer Agency 604-930-4051 -----Original Message----- From: faichichan [mailto:faichichan@sinaman.com] Sent: Tuesday, June 22, 2004 8:33 PM To: linac-eng@plato.aristotle.net Subject: Problems of Elekta SL15 ============================================================================ ============== $BF|F|LHHqn.;~U\1Q8lOBIaDLOC(J - http://adimages.sina.com.hk/Lingua_0604.html $BN-9@N6?7?M>'gQ?M(J $B8=?H?7O2D>GE<<(J - http://ent.sina.com.hk/focus/music/startup/ $B]?='T"2HGV:G?7Y%>p(J+$B RE: Problems of Elekta SL15

Our SL20 (RTD desktop)had a similar problem a month = ago, intermittently beam terminated abnormally. Our debug terminal = logged "HP position" . However, I noticed our item 223 was = running a bit high, ie 31-32C or higher. It turned out (I thought? ) to = be the external cooling water was pretty warm and once we dropped the = water temperature down, this problem has disappeared for over a month. =

Denny Yu
B.C. Cancer Agency
604-930-4051

-----Original Message-----
From: faichichan [mailto:faichichan@sinaman.com= ]
Sent: Tuesday, June 22, 2004 8:33 PM
To: linac-eng@plato.aristotle.net
Subject: Problems of Elekta SL15

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
=1B$BF|F|LHHqn.;~U\1Q8lOBIaDLOC=1B(J -
http://adimages.sina.com.hk/Lingua_0604.html
=1B$BN-9@N6?7?M>'gQ?M=1B(J = =1B$B8=3D?H?7O2D>GE<<=1B(J -
http://ent.sina.com.hk/focus/music/startup/=
=1B$B]?=3D'T"2HGV:G?7Y%>p=1B(J+=1B$B
http://sms.sina.com.hk/euro2004.html

--Boundary_(ID_heUYhWRfIpDqd5woVpaKnQ)-- From VM Thu Jun 24 09:00:43 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7456" "Wednesday" "23" "June" "2004" "10:29:07" "-0400" "Timothy Forsgren" "tforsgren@msn.com" nil "124" "Re: Problems of Elekta SL15" "^From:" nil nil "6" nil nil (number " " mark " Timothy Forsgren Jun 23 124/7456 " thread-indent "\"Re: Problems of Elekta SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZS0036APX6WR@hubbard.azu.nl>; Thu, 24 Jun 2004 06:31:56 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062406314818153 ; Thu, 24 Jun 2004 06:31:48 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id GAA25009; Thu, 24 Jun 2004 06:32:30 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024997; Thu, 24 Jun 2004 06:32:22 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id VAA16390 for linac-eng-list; Wed, 23 Jun 2004 21:48:14 -0500 (CDT) Received: from BAY0-HMR15.phx.gbl (bay0-hmr15.bay0.hotmail.com [65.54.241.214]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA16375 for ; Wed, 23 Jun 2004 21:46:29 -0500 (CDT) Received: from hotmail.com ([65.54.168.110]) by BAY0-HMR15.phx.gbl with Microsoft SMTPSVC(5.0.2195.6713); Wed, 23 Jun 2004 07:41:21 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 23 Jun 2004 07:29:13 -0700 Received: from 4.161.147.122 by bay3-dav6.bay3.hotmail.com with DAV; Wed, 23 Jun 2004 14:29:12 +0000 X-Sender: tforsgren@msn.com Message-id: MIME-version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_UgJdvNav2xLTng6YK4RO6A)" Precedence: bulk X-Originating-IP: [4.161.147.122] X-Originating-Email: [tforsgren@msn.com] X-OriginalArrivalTime: 23 Jun 2004 14:29:13.0241 (UTC) FILETIME=[74938890:01C4592E] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Timothy Forsgren Sender: owner-linac-eng@plato.aristotle.net To: faichichan , linac-eng@plato.aristotle.net Subject: Re: Problems of Elekta SL15 Date: Wed, 23 Jun 2004 10:29:07 -0400 --Boundary_(ID_UgJdvNav2xLTng6YK4RO6A) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable Does this happen on only one energy, or across the board? Make sure the m= onitor values for HP Phase and LP Phase are matched to the actual value (= used to be on page 8 in service on pre desktop models). Good luck ----- Original Message ----- From: faichichan Sent: Wednesday, June 23, 2004 1:15 AM To: linac-eng@plato.aristotle.net Subject: Problems of Elekta SL15 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8=E6=99=82=E5=AD=B8=E8=8B=B1=E8= =AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 - http://adimages.sina.com.hk/Lingua_0604.html =E5=8A=89=E6=B5=A9=E9=BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA = =E7=8F=BE=E8=BA=AB=E6=96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 - http://ent.sina.com.hk/focus/music/startup/ =E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C=80=E6=96=B0=E6=88=B0=E6= =83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C=8D=E5=8B=99 - http://sms.sina.com.hk/euro2004.html Hi everybody on list: =20 Recently, Elekta SL15 has three intermittent interlocks that are Hp phase= position, Lp phase position & Water temperature happen at a glance and t= hen disappear. The signals of them are from HT control area. So I have ch= anged PCBs: AI12, SCC ( U & V ) and two PSU at HT control unit and have c= hecked voltage of the signals, which all are quiet stable. Therefore susp= ect it may be software problem, I have tried to restore full backup from = tape to a new hard disk. First have made a copy of backup to tape of Test= ID, Customizing & Calibration in service mode and Patient, Customizing &= Calibration in clinical mode. Then restore an ancient full backup tape t= o new hard disk and restore data from just created backup tape without an= y error message. But only the patient files are updated. The data of Cali= bration is not current settings. It needs me to update them manually. Why= ? How can I restore Calibration block? The software version of Elekta SL1= 5 is R3.1.0. Even replaced new hard disk, the intermittent interlocks sti= ll happen. What should I do next? Please help. =20 =20 Fai ] --Boundary_(ID_UgJdvNav2xLTng6YK4RO6A) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable

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

From: faichichan
Sent: Wednesday, June 23, 200= 4 1:15 AM

To: linac-eng@plat= o.aristotle.net

Subject: Pro= blems of Elekta SL15

=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D
=E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8= =E6=99=82=E5=AD=B8=E8=8B=B1=E8=AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 = -
http://adimages.sina.com.hk/Lingua_0604.html
=E5=8A=89=E6=B5=A9=E9= =BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA =E7=8F=BE=E8=BA=AB=E6= =96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 -
http://ent.sina.com.hk/fo= cus/music/startup/
=E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C= =80=E6=96=B0=E6=88=B0=E6=83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C= =8D=E5=8B=99 -
http://sms.sina.com.hk/euro2004.html

Hi everybody on list:=

Recently, Elekta SL15 has= three intermittent interlocks that are Hp phase position, Lp phase posit= ion & Water temperature happen at a glance and then disappear. The si= gnals of them are from HT control area. So I have changed PCBs: AI12, SCC= ( U & V ) and two PSU at HT control unit and have checked voltage of= the signals, which all are quiet stable. Therefore suspect it may be sof= tware problem, I have tried to restore full backup from tape to a new har= d disk. First have made a copy of backup to tape of Test ID, Customizing = & Calibration in service mode and Patient, Customizing & Calibrat= ion in clinical mode. Then restore an ancient full backup tape to new har= d disk and restore data from just created backup tape without any error m= essage. But only the patient files are updated. The data of Calibration i= s not current settings. It needs me to update them manually. Why? How can= I restore Calibration block? The software version of Elekta SL15 is R3.1= 0. Even replaced new hard disk, the intermittent interlocks still happen= What should I do next? Please help.

Fai

]
=

--Boundary_(ID_UgJdvNav2xLTng6YK4RO6A)-- From VM Thu Jun 24 09:00:43 2004 X-VM-v5-Data: ([nil nil nil t nil nil nil nil nil] ["7456" "Wednesday" "23" "June" "2004" "10:29:07" "-0400" "Timothy Forsgren" "tforsgren@msn.com" nil "124" "Re: Problems of Elekta SL15" "^From:" nil nil "6" nil nil (number " " mark " F Timothy Forsgren Jun 23 124/7456 " thread-indent "\"Re: Problems of Elekta SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZS0036APX6WR@hubbard.azu.nl>; Thu, 24 Jun 2004 06:31:56 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062406314818153 ; Thu, 24 Jun 2004 06:31:48 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id GAA25009; Thu, 24 Jun 2004 06:32:30 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024997; Thu, 24 Jun 2004 06:32:22 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id VAA16390 for linac-eng-list; Wed, 23 Jun 2004 21:48:14 -0500 (CDT) Received: from BAY0-HMR15.phx.gbl (bay0-hmr15.bay0.hotmail.com [65.54.241.214]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id VAA16375 for ; Wed, 23 Jun 2004 21:46:29 -0500 (CDT) Received: from hotmail.com ([65.54.168.110]) by BAY0-HMR15.phx.gbl with Microsoft SMTPSVC(5.0.2195.6713); Wed, 23 Jun 2004 07:41:21 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 23 Jun 2004 07:29:13 -0700 Received: from 4.161.147.122 by bay3-dav6.bay3.hotmail.com with DAV; Wed, 23 Jun 2004 14:29:12 +0000 X-Sender: tforsgren@msn.com Message-id: MIME-version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_UgJdvNav2xLTng6YK4RO6A)" Precedence: bulk X-Originating-IP: [4.161.147.122] X-Originating-Email: [tforsgren@msn.com] X-OriginalArrivalTime: 23 Jun 2004 14:29:13.0241 (UTC) FILETIME=[74938890:01C4592E] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Timothy Forsgren Sender: owner-linac-eng@plato.aristotle.net To: faichichan , linac-eng@plato.aristotle.net Subject: Re: Problems of Elekta SL15 Date: Wed, 23 Jun 2004 10:29:07 -0400 --Boundary_(ID_UgJdvNav2xLTng6YK4RO6A) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable Does this happen on only one energy, or across the board? Make sure the m= onitor values for HP Phase and LP Phase are matched to the actual value (= used to be on page 8 in service on pre desktop models). Good luck ----- Original Message ----- From: faichichan Sent: Wednesday, June 23, 2004 1:15 AM To: linac-eng@plato.aristotle.net Subject: Problems of Elekta SL15 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8=E6=99=82=E5=AD=B8=E8=8B=B1=E8= =AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 - http://adimages.sina.com.hk/Lingua_0604.html =E5=8A=89=E6=B5=A9=E9=BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA = =E7=8F=BE=E8=BA=AB=E6=96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 - http://ent.sina.com.hk/focus/music/startup/ =E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C=80=E6=96=B0=E6=88=B0=E6= =83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C=8D=E5=8B=99 - http://sms.sina.com.hk/euro2004.html Hi everybody on list: =20 Recently, Elekta SL15 has three intermittent interlocks that are Hp phase= position, Lp phase position & Water temperature happen at a glance and t= hen disappear. The signals of them are from HT control area. So I have ch= anged PCBs: AI12, SCC ( U & V ) and two PSU at HT control unit and have c= hecked voltage of the signals, which all are quiet stable. Therefore susp= ect it may be software problem, I have tried to restore full backup from = tape to a new hard disk. First have made a copy of backup to tape of Test= ID, Customizing & Calibration in service mode and Patient, Customizing &= Calibration in clinical mode. Then restore an ancient full backup tape t= o new hard disk and restore data from just created backup tape without an= y error message. But only the patient files are updated. The data of Cali= bration is not current settings. It needs me to update them manually. Why= ? How can I restore Calibration block? The software version of Elekta SL1= 5 is R3.1.0. Even replaced new hard disk, the intermittent interlocks sti= ll happen. What should I do next? Please help. =20 =20 Fai ] --Boundary_(ID_UgJdvNav2xLTng6YK4RO6A) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable

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

From: faichichan
Sent: Wednesday, June 23, 200= 4 1:15 AM

To: linac-eng@plat= o.aristotle.net

Subject: Pro= blems of Elekta SL15

=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D
=E6=97=A5=E6=97=A5=E5=85=8D=E8=B2=BB=E9=9A=A8= =E6=99=82=E5=AD=B8=E8=8B=B1=E8=AA=9E=E5=92=8C=E6=99=AE=E9=80=9A=E8=A9=B1 = -
http://adimages.sina.com.hk/Lingua_0604.html
=E5=8A=89=E6=B5=A9=E9= =BE=8D=E6=96=B0=E4=BA=BA=E5=94=B1=E8=88=8A=E4=BA=BA =E7=8F=BE=E8=BA=AB=E6= =96=B0=E6=B5=AA=E7=9B=B4=E6=92=AD=E5=AE=A4 -
http://ent.sina.com.hk/fo= cus/music/startup/
=E6=AD=90=E6=B4=B2=E5=9C=8B=E5=AE=B6=E7=9B=83=E6=9C= =80=E6=96=B0=E6=88=B0=E6=83=85+=E6=89=8B=E6=A9=9F=E6=94=AF=E6=8F=B4=E6=9C= =8D=E5=8B=99 -
http://sms.sina.com.hk/euro2004.html

Hi everybody on list:=

Recently, Elekta SL15 has= three intermittent interlocks that are Hp phase position, Lp phase posit= ion & Water temperature happen at a glance and then disappear. The si= gnals of them are from HT control area. So I have changed PCBs: AI12, SCC= ( U & V ) and two PSU at HT control unit and have checked voltage of= the signals, which all are quiet stable. Therefore suspect it may be sof= tware problem, I have tried to restore full backup from tape to a new har= d disk. First have made a copy of backup to tape of Test ID, Customizing = & Calibration in service mode and Patient, Customizing & Calibrat= ion in clinical mode. Then restore an ancient full backup tape to new har= d disk and restore data from just created backup tape without any error m= essage. But only the patient files are updated. The data of Calibration i= s not current settings. It needs me to update them manually. Why? How can= I restore Calibration block? The software version of Elekta SL15 is R3.1= 0. Even replaced new hard disk, the intermittent interlocks still happen= What should I do next? Please help.

Fai

]
=

--Boundary_(ID_UgJdvNav2xLTng6YK4RO6A)-- From VM Mon Jun 28 07:41:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1869" "Friday" "25" "June" "2004" "13:49:54" "-0700" "Eric J Earnst" "ejearnst@accuray.com" nil "45" "Job Posting - Linac engineering position" "^From:" nil nil "6" nil nil (number " " mark " Eric J Earnst Jun 25 45/1869 " thread-indent "\"Job Posting - Linac engineering position\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0HZV00MLDZAF92@hubbard.azu.nl>; Sat, 26 Jun 2004 00:47:08 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062600470315434 ; Sat, 26 Jun 2004 00:47:03 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA24584; Sat, 26 Jun 2004 00:47:45 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024557; Sat, 26 Jun 2004 00:47:18 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA25198 for linac-eng-list; Fri, 25 Jun 2004 15:51:21 -0500 (CDT) Received: from cougar.accuray.com (mail.accuray.com [67.108.13.68]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA25194 for ; Fri, 25 Jun 2004 15:51:19 -0500 (CDT) Received: from eearnst ([10.20.20.62]) by cougar.accuray.com with Microsoft SMTPSVC(5.0.2195.6713); Fri, 25 Jun 2004 13:50:48 -0700 Message-id: MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-15; format=flowed Content-transfer-encoding: quoted-printable Precedence: bulk User-Agent: Opera7.21/Win32 M2 build 3218 X-OriginalArrivalTime: 25 Jun 2004 20:50:48.0395 (UTC) FILETIME=[17FA49B0:01C45AF6] X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id PAA25198 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Eric J Earnst Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Job Posting - Linac engineering position Date: Fri, 25 Jun 2004 13:49:54 -0700 Hi all, I was successful in hiring somebody for an engineering position off a pos= t=20 to this group in the past so I figured I try again. I am looking for a=20 Linac Engineering Manager to manage internal development efforts for the=20 CyberKnife=AE linac, the technical activities of related vendors and to=20 support manufacturing and field service. The linac operates at 6 MV, 9.3= =20 GHz and 400 rads/min. The accelerator and microwave components are locate= d=20 on the end effector of a large 6 degree of freedom robot that allows=20 delivery of radiation from many different angles. We also have an x-ray=20 imaging subsystem that allows us to eliminate frames and perform precise=20 fractionated treatments. Accuray is a fast-growing company with a unique, highly innovative=20 product, the CyberKnife Stereotactic Radiosurgery/Radiotherapy System. We= =20 are located in Sunnyvale, CA in the heart of Silicon Valley. The=20 CyberKnife precisely delivers collimated beams of radiation for the=20 primary purpose of destroying solid tumors, while preserving the=20 surrounding normal tissue. More information on the CyberKnife system and= =20 Accuray is available on our website: < http://www.accuray.com/ >. We=20 currently have 18 systems installed in the US, over 10 in Asia and 2 in=20 Europe. Our install rate is accelerating for all parts of the world. Please pass this along to anybody off the list who might be interested. =20 Additionally, we will be needing more qualified field service engineers s= o=20 if anybody is interested, you can shoot me your info and I will pass it=20 along. Thanks, Eric =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D Eric Earnst Director of Hardware Engineering Accuray, Inc. 1310 Chesapeake Terrace Sunnyvale, CA 94089 408-716-4710 408-830-4601 fax eearnst@accuray.com From VM Tue Jun 29 06:58:08 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1521" "Monday" "28" "June" "2004" "11:46:57" "-0400" "Mlaa@aol.com" "Mlaa@aol.com" nil "35" "AECL simulator parts" "^From:" nil nil "6" nil nil (number " " mark " Mlaa@aol.com Jun 28 35/1521 " thread-indent "\"AECL simulator parts\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0100A265RD9N@hubbard.azu.nl>; Mon, 28 Jun 2004 19:54:50 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062819544810110 ; Mon, 28 Jun 2004 19:54:48 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA04569; Mon, 28 Jun 2004 19:55:33 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma004545; Mon, 28 Jun 2004 19:55:07 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA10693 for linac-eng-list; Mon, 28 Jun 2004 10:47:38 -0500 (CDT) Received: from imo-m26.mx.aol.com (imo-m26.mx.aol.com [64.12.137.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA10689 for ; Mon, 28 Jun 2004 10:47:37 -0500 (CDT) Received: from Mlaa@aol.com by imo-m26.mx.aol.com (mail_out_v37_r2.6.) id y.21.402bf76c (4254) for ; Mon, 28 Jun 2004 11:46:57 -0400 (EDT) Message-id: <21.402bf76c.2e119771@aol.com> MIME-version: 1.0 X-Mailer: 9.0 for Windows sub 5031 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_BcuXhHKSKgX2QzTtwsETTw)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: AECL simulator parts Date: Mon, 28 Jun 2004 11:46:57 -0400 (EDT) --Boundary_(ID_BcuXhHKSKgX2QzTtwsETTw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello to all on the list, I know this will be pushing the resources of this very informative list, but here goes. I am looking for some parts for an AECL 720 or 750 simulator. I need the control motor power supply PL - 13 (outputs of 5, 25, and 115 armature). I also need the motor control board part number A10181D5. If anyone has these parts or knows of a source, please let me know. Thanks Mike Liddicote Accelerator Associates --Boundary_(ID_BcuXhHKSKgX2QzTtwsETTw) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello to all on the list,

I know this will be pushing the resources of this ve= ry informative list, but here goes. I am looking for some parts for an AECL=20= 720 or 750 simulator. I need the control motor power supply PL - 13 (o= utputs of 5, 25, and 115 armature). I also need the motor control boar= d part number A10181D5. If anyone has these parts or knows of a source, plea= se let me know. Thanks

Mike Liddicote

Accelerator Associates

--Boundary_(ID_BcuXhHKSKgX2QzTtwsETTw)-- From VM Wed Jun 30 07:39:40 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2039" "Tuesday" "29" "June" "2004" "14:02:04" "-0400" "Mlaa@aol.com" "Mlaa@aol.com" nil "51" "Siemans" "^From:" nil nil "6" nil nil (number " " mark " Mlaa@aol.com Jun 29 51/2039 " thread-indent "\"Siemans\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0300HY767VQG@hubbard.azu.nl>; Tue, 29 Jun 2004 21:59:56 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062921595414419 ; Tue, 29 Jun 2004 21:59:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA07813; Tue, 29 Jun 2004 22:00:39 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma007775; Tue, 29 Jun 2004 22:00:32 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA04478 for linac-eng-list; Tue, 29 Jun 2004 13:02:43 -0500 (CDT) Received: from imo-m26.mx.aol.com (imo-m26.mx.aol.com [64.12.137.7]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA04474 for ; Tue, 29 Jun 2004 13:02:41 -0500 (CDT) Received: from Mlaa@aol.com by imo-m26.mx.aol.com (mail_out_v37_r2.6.) id y.89.e8e297f (4254) for ; Tue, 29 Jun 2004 14:02:05 -0400 (EDT) Message-id: <89.e8e297f.2e13089c@aol.com> MIME-version: 1.0 X-Mailer: 9.0 for Windows sub 5031 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_SKCwe8CLV9vUTwBh4yavlA)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Mlaa@aol.com Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Siemans Date: Tue, 29 Jun 2004 14:02:04 -0400 (EDT) --Boundary_(ID_SKCwe8CLV9vUTwBh4yavlA) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Hello to listers, I am looking for a Siemans machine that will fit on a Mev 6 base frame (to my knowledge I believe that all of the Siemans bases are the same). I would like to find one that has dual photons 6 and 10 preffered and electrons of course. My customer currently has a Mev 6 with retractable beamstopper. I may need a machine that has a retractable beamstopper unless anyone knows that the Mev 6 beamstopper will work on other machines. If anyone has one available can you please let us know how much and when it might be available. Thanks in advance, Mike Liddicote Accelerator Associates --Boundary_(ID_SKCwe8CLV9vUTwBh4yavlA) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello to listers,

I am looking for a Siemans machine that will fit on a Mev 6 base=20= frame (to my knowledge I believe that all of the Siemans bases are the same)= . I would like to find one that has dual photons 6 and 10 preffered an= d electrons of course. My customer currently has a Mev 6 with retractable be= amstopper. I may need a machine that has a retractable beamstopper unl= ess anyone knows that the Mev 6 beamstopper will work on other machines= . If anyone has one available can you please let us know how much and=20= when it might be available.

Thanks in advance,

Mike Liddicote

Accelerator Associates

--Boundary_(ID_SKCwe8CLV9vUTwBh4yavlA)-- From VM Wed Jun 30 07:39:40 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["347" "Tuesday" "29" "June" "2004" "14:00:07" "-0500" "Stephen Jordan" "srjordan@uabmc.edu" nil "8" "2100C C1 (0078) ETR couch LONG linear bearings" "^From:" nil nil "6" nil nil (number " " mark " Stephen Jordan Jun 29 8/347 " thread-indent "\"2100C C1 (0078) ETR couch LONG linear bearings\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0300LUX89CZG@hubbard.azu.nl>; Tue, 29 Jun 2004 22:44:01 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004062922435415100 ; Tue, 29 Jun 2004 22:43:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA12779; Tue, 29 Jun 2004 22:44:34 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma012758; Tue, 29 Jun 2004 22:44:07 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA04938 for linac-eng-list; Tue, 29 Jun 2004 14:01:29 -0500 (CDT) Received: from mail5.hs.uab.edu (msgmail5.hs.uab.edu [164.111.99.114]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA04934 for ; Tue, 29 Jun 2004 14:01:26 -0500 (CDT) Received: from msgia.hs.uab.edu not authenticated [10.20.2.43] by mail5.hs.uab.edu with NetMail SMTP Agent $Revision: 3.22.1.13 $ on Novell NetWare; Tue, 29 Jun 2004 14:00:20 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Tue, 29 Jun 2004 14:00:20 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 From: Stephen Jordan Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: 2100C C1 (0078) ETR couch LONG linear bearings Date: Tue, 29 Jun 2004 14:00:07 -0500 Can someone please provide the part number(s) for the longitudinal axis bearings on a ETR couch? I have both databooks, and unless V calls them something other than "bearings", I'm stumped. They are the flat-race, needle type bearings that are inserted between the inner and outer long assys. Thanks for the help! Steve Jordan UAB Rad Physics From VM Wed Jul 7 07:52:21 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2016" "Tuesday" "6" "July" "2004" "09:41:01" "-0500" "Kyle, John" "John.Kyle@tenethealth.com" nil "58" "RE: Image Intensifier Camera" "^From:" nil nil "7" nil nil (number " " mark " Kyle, John Jul 6 58/2016 " thread-indent "\"RE: Image Intensifier Camera\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0F009HDVO014@hubbard.azu.nl>; Tue, 6 Jul 2004 18:40:53 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070618405128192 ; Tue, 06 Jul 2004 18:40:51 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA04169; Tue, 06 Jul 2004 18:41:40 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma004129; Tue, 06 Jul 2004 18:41:29 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA26759 for linac-eng-list; Tue, 06 Jul 2004 09:42:30 -0500 (CDT) Received: from mail2.tenethealth.com (mail2.tenethealth.com [199.222.14.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA26755 for ; Tue, 06 Jul 2004 09:42:28 -0500 (CDT) Received: from tenhdcthemx53.tenethealth.net (tenhdcthemx53.tenethealth.net [172.18.167.214]) by mail2.tenethealth.com (8.11.6/8.11.6) with ESMTP id i66Efu908792; Tue, 06 Jul 2004 09:41:56 -0500 Received: from tenbmcthemx01.tenethealth.net ([10.30.2.48]) by tenhdcthemx53.tenethealth.net with Microsoft SMTPSVC(5.0.2195.6713); Tue, 06 Jul 2004 09:41:01 -0500 Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_51XHMApsCcbv1MibZdMwbQ)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: Image Intensifier Camera Thread-Index: AcRZAPnqF9qbZ8dERJuJ5CfVS+dmEwKZeU1Q X-OriginalArrivalTime: 06 Jul 2004 14:41:01.0452 (UTC) FILETIME=[4212B4C0:01C46367] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kyle, John" Sender: owner-linac-eng@plato.aristotle.net To: Mlaa@aol.com, linac-eng@plato.aristotle.net Subject: RE: Image Intensifier Camera Date: Tue, 06 Jul 2004 09:41:01 -0500 This is a multi-part message in MIME format. --Boundary_(ID_51XHMApsCcbv1MibZdMwbQ) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Try Imaging Affiliates. George Pardue. 1-800-388-9800 -----Original Message----- From: Mlaa@aol.com [mailto:Mlaa@aol.com]=20 Sent: Wednesday, June 23, 2004 1:57 AM To: linac-eng@plato.aristotle.net Subject: Image Intensifier Camera Hello to all on list, Does anyone know of a source for a camera for an II tube? I have one that has failed, (I believe it is a Precise Optics camera) any help would be appreciated. Thanks, Mike Liddicote Accelerator Associates --Boundary_(ID_51XHMApsCcbv1MibZdMwbQ) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

Try Imaging Affiliates. George = Pardue.=20 1-800-388-9800

-----Original Message-----
From: Mlaa@aol.com=20 [mailto:Mlaa@aol.com]
Sent: Wednesday, June 23, 2004 1:57=20 AM
To: linac-eng@plato.aristotle.net
Subject: = Image=20 Intensifier Camera

Hello to all on list,

Does anyone know of a source for a camera for = an II=20 tube? I have one that has failed, (I believe it is a Precise = Optics=20 camera) any help would be appreciated. Thanks,

Mike Liddicote

Accelerator Associates

--Boundary_(ID_51XHMApsCcbv1MibZdMwbQ)-- From VM Thu Jul 8 08:02:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["580" "Wednesday" "7" "July" "2004" "13:18:15" "-0500" "Stephen Jordan" "srjordan@uabmc.edu" nil "13" "2100C type II Accessory mount question" "^From:" nil nil "7" nil nil (number " " mark " Stephen Jordan Jul 7 13/580 " thread-indent "\"2100C type II Accessory mount question\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0I00KFM0UHMO@hubbard.azu.nl>; Wed, 7 Jul 2004 22:27:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070722275127029 ; Wed, 07 Jul 2004 22:27:51 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA19634; Wed, 07 Jul 2004 22:28:41 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma019584; Wed, 07 Jul 2004 22:28:23 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA18157 for linac-eng-list; Wed, 07 Jul 2004 13:19:25 -0500 (CDT) Received: from mail6.hs.uab.edu (msgmail6.hs.uab.edu [164.111.99.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA18153 for ; Wed, 07 Jul 2004 13:19:24 -0500 (CDT) Received: from msgia.hs.uab.edu not authenticated [10.20.2.43] by mail6.hs.uab.edu with NetMail SMTP Agent $Revision: 3.22.1.13 $ on Novell NetWare; Wed, 07 Jul 2004 13:18:23 -0500 Received: from INET-MTA by msgia.hs.uab.edu with Novell_GroupWise; Wed, 07 Jul 2004 13:18:23 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 From: Stephen Jordan Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: 2100C type II Accessory mount question Date: Wed, 07 Jul 2004 13:18:15 -0500 Our 2100C (C1) #0078 has the old, white type II accessory mount. It needs to be replaced. My question is: There are two part numbers for the application, 855430-13 (mica chamber) and 855430-14 (kapton chamber). Our 2100C has a kapton chamber, although the mount part number currently in use is for a mica chamber (the acc mount has been changed numerous times in the last four years). Can someone explain the difference? Is the mica chamber a different thickness, requiring a change in physical dimension of the acc. mount? Thanks in advance. Steve Jordan UAB Rad Physics From VM Fri Jul 9 07:35:11 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["543" "Thursday" "8" "July" "2004" "09:25:21" "-0300" "Marvin Rathburn" "RATMA@reg2.health.nb.ca" nil "11" "Blasting" "^From:" nil nil "7" nil nil (number " " mark " Marvin Rathburn Jul 8 11/543 " thread-indent "\"Blasting\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0J00KQHGWIL3@hubbard.azu.nl>; Thu, 8 Jul 2004 17:12:19 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070817121720253 ; Thu, 08 Jul 2004 17:12:17 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id RAA15976; Thu, 08 Jul 2004 17:13:07 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma015884; Thu, 08 Jul 2004 17:12:30 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA03816 for linac-eng-list; Thu, 08 Jul 2004 08:22:01 -0500 (CDT) Received: from crux-nb01s0.health.nb.ca (well.health.nb.ca [207.179.181.34]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA03812 for ; Thu, 08 Jul 2004 08:21:59 -0500 (CDT) Received: from SJRH-AS-N03.NBHEALTH ([10.21.4.10]) by crux-nb01s0.health.nb.ca (Post.Office MTA v3.5.3 release 223 ID# 607-58282U90000L90000S0V35) with ESMTP id ca for ; Thu, 08 Jul 2004 10:17:07 -0300 Received: from AHSC_DOMR-MTA by SJRH-AS-N03.NBHEALTH with Novell_GroupWise; Thu, 08 Jul 2004 10:18:18 -0300 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.2 Beta 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 From: Marvin Rathburn Sender: owner-linac-eng@plato.aristotle.net To: Linac-eng@plato.aristotle.net Subject: Blasting Date: Thu, 08 Jul 2004 09:25:21 -0300 For the interests of fellow engineers The blasting at our site has started with more to come. We have had two incidents in as many days. The two incidents so far were located in the area closest to our bunker, they will be moving away as construction continues. We set up seismographs in our bunkers but no movement was detected and after an intensive Q.A. it proved that our units were unaffected by the blasts. I am still keeping my fingers crossed unit all blasting is done. Regards Marvin Rathburn From VM Fri Jul 9 07:35:11 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7284" "Thursday" "8" "July" "2004" "11:43:41" "-0500" "ROY ERICKSON" "RERICKS1@FAIRVIEW.ORG" nil "219" "old Ximatron monitor" "^From:" nil nil "7" nil nil (number " " mark " ROY ERICKSON Jul 8 219/7284 " thread-indent "\"old Ximatron monitor\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0J00CD5Q7OUT@hubbard.azu.nl>; Thu, 8 Jul 2004 20:33:28 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070820332423615 ; Thu, 08 Jul 2004 20:33:24 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA10030; Thu, 08 Jul 2004 20:34:15 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa10003; Thu, 08 Jul 2004 20:34:05 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA07562 for linac-eng-list; Thu, 08 Jul 2004 11:44:27 -0500 (CDT) Received: from zixvpm2.fairview.org (ZIXVPM1.fairview.org [162.96.12.40]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA07558 for ; Thu, 08 Jul 2004 11:44:25 -0500 (CDT) Received: from zixvpm2.fairview.org (ZixVPM [127.0.0.1]) by Outbound.fairview.org (Proprietary) with ESMTP id 8A5782C00A5 for ; Thu, 08 Jul 2004 11:44:55 -0500 (CDT) Received: from gw-northdom.fairview.org (GW-NORTHDOM.fairview.org [162.96.12.31]) by zixvpm2.fairview.org (Proprietary) with ESMTP id 26C5A2C0099 for ; Thu, 08 Jul 2004 11:44:54 -0500 (CDT) Received: from NORTH-MTA by gw-northdom.fairview.org with Novell_GroupWise; Thu, 08 Jul 2004 11:43:46 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_D1OLoZeAAo/71kLm2/2YBw)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: ROY ERICKSON Sender: owner-linac-eng@plato.aristotle.net To: LINac-eng@plato.aristotle.net Subject: old Ximatron monitor Date: Thu, 08 Jul 2004 11:43:41 -0500 --Boundary_(ID_D1OLoZeAAo/71kLm2/2YBw) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id LAA07562 Good Day Fellow Listers, I am in need of a replacement fluoroscoptic 17" monochrome video monitor for Varian Xim #473. I would prefer a make and model # I would also consider used or rebuilt.=20 My thanks in advance,and an offer of multiple beverages of your choice if you ever come to Minnesota. =20 Thanks, =20 Roy Erickson The information transmitted in this e-mail is intended only for the perso= n or entity to which it is addressed and may contain confidential and/or privileged material, including =93pro= tected health information.=94 If you are not the intended recipient, you are hereby notified that any review, retr= ansmission, dissemination, distribution, or copying of this message is strictly prohibited. If you = have received this communication in error, please destroy and delete this message from any computer and conta= ct us immediately by return e-mail. <<<>>> --Boundary_(ID_D1OLoZeAAo/71kLm2/2YBw) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id LAA07562

Good Day Fellow Listers,

I am in need of a replacement fluoroscoptic 17" monochrome vi= deo=20 monitor for Varian Xim #473. I would prefer a make and model&n= bsp;# I=20 would also consider used or rebuilt.

My thanks in advance,and an offer of multiple beverages of your choi= ce if=20 you ever come to Minnesota.

&n= bsp; &nb= sp; &nbs= p; = ; = =20 Thanks,

&n= bsp; &nb= sp; &nbs= p; = ; = &= nbsp;=20 Roy Erickson

The information transmitted in this e-mail is intended only for th= e person or entity to which it is addressed and may contain

The information transmitted in this e-mail is int= ended only for

the person or entity t= o which it is addressed and may contain

confidential and/or pr= ivileged material, including =93protected

health information.=94= =A0 If you are not the intended recipie= nt,

you are hereby notifie= d that any review, retransmission,

dissemination, distrib= ution, or copying of this message is

strictly prohibited.=A0 If you have received this communica= tion

in error, please destr= oy and delete this message from any

computer and contact u= s immediately by return e-mail.

<<<<P.H.I.>>>>

--Boundary_(ID_D1OLoZeAAo/71kLm2/2YBw)-- From VM Fri Jul 9 07:35:11 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7284" "Thursday" "8" "July" "2004" "12:41:47" "-0500" "ROY ERICKSON" "RERICKS1@FAIRVIEW.ORG" nil "219" "old Ximatron monitor" "^From:" nil nil "7" nil nil (number " " mark " ROY ERICKSON Jul 8 219/7284 " thread-indent "\"old Ximatron monitor\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0J00HA2T0WTH@hubbard.azu.nl>; Thu, 8 Jul 2004 21:34:13 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070821341124678 ; Thu, 08 Jul 2004 21:34:11 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id VAA16827; Thu, 08 Jul 2004 21:35:01 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma016789; Thu, 08 Jul 2004 21:34:52 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA08910 for linac-eng-list; Thu, 08 Jul 2004 12:42:42 -0500 (CDT) Received: from zixvpm2.fairview.org (ZIXVPM1.fairview.org [162.96.12.40]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA08906 for ; Thu, 08 Jul 2004 12:42:40 -0500 (CDT) Received: from zixvpm2.fairview.org (ZixVPM [127.0.0.1]) by Outbound.fairview.org (Proprietary) with ESMTP id 03A722C0526 for ; Thu, 08 Jul 2004 12:43:08 -0500 (CDT) Received: from gw-northdom.fairview.org (GW-NORTHDOM.fairview.org [162.96.12.31]) by zixvpm2.fairview.org (Proprietary) with ESMTP id F15062C0517 for ; Thu, 08 Jul 2004 12:43:06 -0500 (CDT) Received: from NORTH-MTA by gw-northdom.fairview.org with Novell_GroupWise; Thu, 08 Jul 2004 12:41:57 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_ZmNxlG5D3vrxKCpAppvJSg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: ROY ERICKSON Sender: owner-linac-eng@plato.aristotle.net To: LINac-eng@plato.aristotle.net Subject: old Ximatron monitor Date: Thu, 08 Jul 2004 12:41:47 -0500 --Boundary_(ID_ZmNxlG5D3vrxKCpAppvJSg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id MAA08910 Good Day Fellow Listers, I am in need of a replacement fluoroscoptic 17" monochrome video monitor for Varian Xim #473. I would prefer a make and model # I would also consider used or rebuilt.=20 My thanks in advance,and an offer of multiple beverages of your choice if you ever come to Minnesota. =20 Thanks, =20 Roy Erickson The information transmitted in this e-mail is intended only for the perso= n or entity to which it is addressed and may contain confidential and/or privileged material, including =93pro= tected health information.=94 If you are not the intended recipient, you are hereby notified that any review, retr= ansmission, dissemination, distribution, or copying of this message is strictly prohibited. If you = have received this communication in error, please destroy and delete this message from any computer and conta= ct us immediately by return e-mail. <<<>>> --Boundary_(ID_ZmNxlG5D3vrxKCpAppvJSg) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id MAA08910

Good Day Fellow Listers,

I am in need of a replacement fluoroscoptic 17" monochrome vi= deo=20 monitor for Varian Xim #473. I would prefer a make and model&n= bsp;# I=20 would also consider used or rebuilt.

My thanks in advance,and an offer of multiple beverages of your choi= ce if=20 you ever come to Minnesota.

&n= bsp; &nb= sp; &nbs= p; = ; = =20 Thanks,

&n= bsp; &nb= sp; &nbs= p; = ; = &= nbsp;=20 Roy Erickson

The information transmitted in this e-mail is intended only for th= e person or entity to which it is addressed and may contain

The information transmitted in this e-mail is int= ended only for

the person or entity t= o which it is addressed and may contain

confidential and/or pr= ivileged material, including =93protected

health information.=94= =A0 If you are not the intended recipie= nt,

you are hereby notifie= d that any review, retransmission,

dissemination, distrib= ution, or copying of this message is

strictly prohibited.=A0 If you have received this communica= tion

in error, please destr= oy and delete this message from any

computer and contact u= s immediately by return e-mail.

<<<<P.H.I.>>>>

--Boundary_(ID_ZmNxlG5D3vrxKCpAppvJSg)-- From VM Fri Jul 9 14:56:07 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1107" "Thursday" "8" "July" "2004" "21:42:06" "-0700" "Domenic Greco" "dgreco@pacbell.net" nil "33" "RE: 2100C type II Accessory mount question" "^From:" nil nil "7" nil nil (number " " mark " Domenic Greco Jul 8 33/1107 " thread-indent "\"RE: 2100C type II Accessory mount question\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0K00J4MNP7V8@hubbard.azu.nl>; Fri, 9 Jul 2004 08:36:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070908365332312 ; Fri, 09 Jul 2004 08:36:53 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id IAA10164; Fri, 09 Jul 2004 08:37:44 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma010121; Fri, 09 Jul 2004 08:37:15 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA17631 for linac-eng-list; Thu, 08 Jul 2004 23:42:15 -0500 (CDT) Received: from smtp806.mail.sc5.yahoo.com (smtp806.mail.sc5.yahoo.com [66.163.168.185]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id XAA17627 for ; Thu, 08 Jul 2004 23:42:13 -0500 (CDT) Received: from unknown (HELO DGrecoHomOffice) (dgreco@pacbell.net@216.103.85.50 with login) by smtp806.mail.sc5.yahoo.com with SMTP; Fri, 09 Jul 2004 04:42:10 +0000 In-reply-to: Message-id: MIME-version: 1.0 X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Importance: Normal Precedence: bulk X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f X-Priority: 3 (Normal) From: Domenic Greco Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan , linac-eng@plato.aristotle.net Subject: RE: 2100C type II Accessory mount question Date: Thu, 08 Jul 2004 21:42:06 -0700 Steve, The difference is only in the harness which has the wedge and cone plugs flipped over. Since the electron cones differ between kapton and Mica, it was the method used to key the wedge mount so you couldn't install the wrong cone type. Domenic Greco -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Stephen Jordan Sent: Wednesday, July 07, 2004 11:18 AM To: linac-eng@plato.aristotle.net Subject: 2100C type II Accessory mount question Our 2100C (C1) #0078 has the old, white type II accessory mount. It needs to be replaced. My question is: There are two part numbers for the application, 855430-13 (mica chamber) and 855430-14 (kapton chamber). Our 2100C has a kapton chamber, although the mount part number currently in use is for a mica chamber (the acc mount has been changed numerous times in the last four years). Can someone explain the difference? Is the mica chamber a different thickness, requiring a change in physical dimension of the acc. mount? Thanks in advance. Steve Jordan UAB Rad Physics From VM Fri Jul 9 14:56:07 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["978" "Friday" "9" "July" "2004" "09:55:33" "+0100" "=?iso-8859-1?q?kim=20yeung?=" "kimyeungwk@yahoo.co.uk" nil "33" "" "^From:" nil nil "7" nil nil (number " " mark " =?iso-8859-1?Q?kim_yeung?= Jul 9 33/978 " thread-indent "\"\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0K00CBEY7TKG@hubbard.azu.nl>; Fri, 9 Jul 2004 12:24:00 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070912235605724 ; Fri, 09 Jul 2004 12:23:56 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id MAA13789; Fri, 09 Jul 2004 12:24:47 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma013759; Fri, 09 Jul 2004 12:24:39 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA20419 for linac-eng-list; Fri, 09 Jul 2004 03:56:06 -0500 (CDT) Received: from web25308.mail.ukl.yahoo.com (web25308.mail.ukl.yahoo.com [217.12.10.80]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id DAA20415 for ; Fri, 09 Jul 2004 03:56:04 -0500 (CDT) Received: from [210.0.231.246] by web25308.mail.ukl.yahoo.com via HTTP; Fri, 09 Jul 2004 09:55:33 +0100 (BST) Message-id: <20040709085533.15343.qmail@web25308.mail.ukl.yahoo.com> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_IRVRRLyqMCfAX9sx1ZxU0A)" Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: =?iso-8859-1?q?kim=20yeung?= Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng Date: Fri, 09 Jul 2004 09:55:33 +0100 (BST) --Boundary_(ID_IRVRRLyqMCfAX9sx1ZxU0A) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Hi Colleagues, Could anyone advise the source of Tri-Flow? Thanks in advance. Kim Yeung --------------------------------- ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself --Boundary_(ID_IRVRRLyqMCfAX9sx1ZxU0A) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 8bit

Hi Colleagues,

Could anyone advise the source of Tri-Flow?

Thanks in advance.

Kim Yeung

ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself --Boundary_(ID_IRVRRLyqMCfAX9sx1ZxU0A)-- From VM Fri Jul 9 14:56:07 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["30" "Friday" "9" "July" "2004" "11:54:29" "+0100" "White, Malcolm" "Malcolm.White@ubht.swest.nhs.uk" nil "5" "Re: Triflow" "^From:" nil nil "7" nil nil (number " " mark " White, Malcolm Jul 9 5/30 " thread-indent "\"Re: Triflow\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0L005CN44FKV@hubbard.azu.nl>; Fri, 9 Jul 2004 14:31:28 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070914312609419 ; Fri, 09 Jul 2004 14:31:26 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id OAA02874; Fri, 09 Jul 2004 14:32:17 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002830; Fri, 09 Jul 2004 14:31:47 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA21422 for linac-eng-list; Fri, 09 Jul 2004 05:55:12 -0500 (CDT) Received: from mail23.nhs.uk (mail23.nhs.uk [62.6.139.221]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA21418 for ; Fri, 09 Jul 2004 05:55:10 -0500 (CDT) Received: from [10.191.254.3] (helo=relayint2.nhs.uk) by mail23.nhs.uk with esmtp (MTC MTA) id 1Bit1c-0005HN-6M for linac-eng@plato.aristotle.net; Fri, 09 Jul 2004 11:54:40 +0100 Received: from relay.nhs.uk (194.62.42.142) by relayint2.nhs.uk (Syntegra-I2 7.0.008) id 409511E60126BE05 for linac-eng@plato.aristotle.net; Fri, 09 Jul 2004 11:54:40 +0100 Received: from ubht.swest.nhs.uk (194.101.53.2) by relay.nhs.uk (Syntegra-2 7.0.008) id 40ED66A70004CD01 for linac-eng@plato.aristotle.net; Fri, 09 Jul 2004 11:54:39 +0100 Received: by ubhtfw1.ubht.swest.nhs.uk id <119055>; Fri, 09 Jul 2004 11:30:48 +0100 Message-id: <04Jul9.113048bst.119055@ubhtfw1.ubht.swest.nhs.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 From: "White, Malcolm" Sender: owner-linac-eng@plato.aristotle.net To: "'linac-eng@plato.aristotle.net'" Subject: Re: Triflow Date: Fri, 09 Jul 2004 11:54:29 +0100 www.taskersuk.com -- Malc From VM Sat Jul 10 13:07:47 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2286" "Friday" "9" "July" "2004" "09:47:37" "-0500" "Kyle, John" "John.Kyle@tenethealth.com" nil "77" "RE:" "^From:" nil nil "7" nil nil (number " " mark " Kyle, John Jul 9 77/2286 " thread-indent "\"RE:\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0L001K3G5XNZ@hubbard.azu.nl>; Fri, 9 Jul 2004 18:51:34 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070918513215484 ; Fri, 09 Jul 2004 18:51:32 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA06769; Fri, 09 Jul 2004 18:52:24 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma006744; Fri, 09 Jul 2004 18:52:05 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA24610 for linac-eng-list; Fri, 09 Jul 2004 09:49:53 -0500 (CDT) Received: from mail2.tenethealth.com (mail2.tenethealth.com [199.222.14.8]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA24606 for ; Fri, 09 Jul 2004 09:49:51 -0500 (CDT) Received: from tenhdcthemx53.tenethealth.net (tenhdcthemx53.tenethealth.net [172.18.167.214]) by mail2.tenethealth.com (8.11.6/8.11.6) with ESMTP id i69EnDV14190; Fri, 09 Jul 2004 09:49:14 -0500 Received: from tenbmcthemx01.tenethealth.net ([10.30.2.48]) by tenhdcthemx53.tenethealth.net with Microsoft SMTPSVC(5.0.2195.6713); Fri, 09 Jul 2004 09:47:37 -0500 Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_h0+EUQdOOVBmj1dPwIgaIA)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: RE: Thread-Index: AcRloBwUKMJJJZAXSxq84ey6l6GV1AAIxgwg X-OriginalArrivalTime: 09 Jul 2004 14:47:37.0988 (UTC) FILETIME=[ADAA8C40:01C465C3] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kyle, John" Sender: owner-linac-eng@plato.aristotle.net To: kim yeung , Linac-Eng Subject: RE: Date: Fri, 09 Jul 2004 09:47:37 -0500 This is a multi-part message in MIME format. --Boundary_(ID_h0+EUQdOOVBmj1dPwIgaIA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable In the U.S. we can buy it at the hardware store. I am sure Varian has a part # if you can't find it somewhere else. -----Original Message----- From: kim yeung [mailto:kimyeungwk@yahoo.co.uk]=20 Sent: Friday, July 09, 2004 3:56 AM To: Linac-Eng Subject:=20 Hi Colleagues, =20 Could anyone advise the source of Tri-Flow? =20 Thanks in advance. =20 Kim Yeung _____ =20 ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself=20 --Boundary_(ID_h0+EUQdOOVBmj1dPwIgaIA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

In the=20 U.S. we can buy it at the hardware store. I am sure Varian has a part # = if you=20 can't find it somewhere else.

-----Original Message-----
From: kim = yeung=20 [mailto:kimyeungwk@yahoo.co.uk]
Sent: Friday, July 09, 2004 = 3:56=20 AM
To: Linac-Eng
Subject:

Hi Colleagues,

Could anyone advise the source of Tri-Flow?

Thanks in advance.

Kim Yeung

ALL-NEW=20 Yahoo! Messenger - sooooo many=20 all-new ways to express yourself=20

--Boundary_(ID_h0+EUQdOOVBmj1dPwIgaIA)-- From VM Sat Jul 10 13:07:47 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7993" "Friday" "9" "July" "2004" "15:55:14" "+0000" "davesteimel.miro@comcast.net" "davesteimel.miro@comcast.net" nil "246" "Re: old Ximatron monitor" "^From:" nil nil "7" nil nil (number " " mark " davesteimel.miro@ Jul 9 246/7993 " thread-indent "\"Re: old Ximatron monitor\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0L005VOIVFVI@hubbard.azu.nl>; Fri, 9 Jul 2004 19:50:04 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070919500216423 ; Fri, 09 Jul 2004 19:50:02 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA12574; Fri, 09 Jul 2004 19:50:53 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma012549; Fri, 09 Jul 2004 19:50:27 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id KAA25637 for linac-eng-list; Fri, 09 Jul 2004 10:55:47 -0500 (CDT) Received: from sccrmhc12.comcast.net (sccrmhc12.comcast.net [204.127.202.56]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA25631 for ; Fri, 09 Jul 2004 10:55:45 -0500 (CDT) Received: from 204.127.205.145 ([204.127.205.145]) by comcast.net (sccrmhc12) with SMTP id <2004070915551401200hm7ije>; Fri, 09 Jul 2004 15:55:14 +0000 Received: from [68.41.147.77] by 204.127.205.145; Fri, 09 Jul 2004 15:55:14 +0000 Message-id: <070920041555.18297.40EEBFE200003D13000047792200762302019D0703D2040A03070A9B9C0A900E0B@comcast.net> MIME-version: 1.0 X-Mailer: AT&T Message Center Version 1 (Jun 24 2004) Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_aLXTlaQgZJfqfwqsXS+EKQ)" Precedence: bulk X-Authenticated-Sender: ZGF2ZXN0ZWltZWwubWlyb0Bjb21jYXN0Lm5ldA== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: davesteimel.miro@comcast.net Sender: owner-linac-eng@plato.aristotle.net To: ROY ERICKSON , LINac-eng@plato.aristotle.net Subject: Re: old Ximatron monitor Date: Fri, 09 Jul 2004 15:55:14 +0000 --Boundary_(ID_aLXTlaQgZJfqfwqsXS+EKQ) Content-type: text/plain; CHARSET=US-ASCII Content-transfer-encoding: 8bit I have a brand new Siemens 44cm fluoro monitor. I would think that it should work for you as Siemens used to be the distributor for Ximatron. The Siemens p/n is 1942452. I can be reached at 248-563-1116. Dave Steimel MIRO --Boundary_(ID_aLXTlaQgZJfqfwqsXS+EKQ) Content-type: MESSAGE/RFC822 Date: Thu, 8 Jul 2004 19:18:01 +0000 From: "ROY ERICKSON" Subject: old Ximatron monitor To: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_ExeKheUy0j1MRntg/ZNtpg)" --Boundary_(ID_ExeKheUy0j1MRntg/ZNtpg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id KAA25637 Good Day Fellow Listers, I am in need of a replacement fluoroscoptic 17" monochrome video monitor for Varian Xim #473. I would prefer a make and model # I would also consider used or rebuilt.=20 My thanks in advance,and an offer of multiple beverages of your choice if you ever come to Minnesota. =20 Thanks, =20 Roy Erickson The information transmitted in this e-mail is intended only for the perso= n or entity to which it is addressed and may contain confidential and/or privileged material, including =93pro= tected health information.=94 If you are not the intended recipient, you are hereby notified that any review, retr= ansmission, dissemination, distribution, or copying of this message is strictly prohibited. If you = have received this communication in error, please destroy and delete this message from any computer and conta= ct us immediately by return e-mail. <<<>>> --Boundary_(ID_ExeKheUy0j1MRntg/ZNtpg) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id KAA25637

Good Day Fellow Listers,

I am in need of a replacement fluoroscoptic 17" monochrome vi= deo=20 monitor for Varian Xim #473. I would prefer a make and model&n= bsp;# I=20 would also consider used or rebuilt.

My thanks in advance,and an offer of multiple beverages of your choi= ce if=20 you ever come to Minnesota.

&n= bsp; &nb= sp; &nbs= p; = ; = =20 Thanks,

&n= bsp; &nb= sp; &nbs= p; = ; = &= nbsp;=20 Roy Erickson

The information transmitted in this e-mail is intended only for th= e person or entity to which it is addressed and may contain

The information transmitted in this e-mail is int= ended only for

the person or entity t= o which it is addressed and may contain

confidential and/or pr= ivileged material, including =93protected

health information.=94= =A0 If you are not the intended recipie= nt,

you are hereby notifie= d that any review, retransmission,

dissemination, distrib= ution, or copying of this message is

strictly prohibited.=A0 If you have received this communica= tion

in error, please destr= oy and delete this message from any

computer and contact u= s immediately by return e-mail.

<<<<P.H.I.>>>>

--Boundary_(ID_ExeKheUy0j1MRntg/ZNtpg)-- --Boundary_(ID_aLXTlaQgZJfqfwqsXS+EKQ)-- From VM Sat Jul 10 13:07:47 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["285" "Friday" "9" "July" "2004" "17:41:31" "+0000" "davesteimel.miro@comcast.net" "davesteimel.miro@comcast.net" nil "4" "Ximatron fluoro monitor" "^From:" nil nil "7" nil nil (number " " mark " davesteimel.miro@ Jul 9 4/285 " thread-indent "\"Ximatron fluoro monitor\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0L00KIOSKEFA@hubbard.azu.nl>; Fri, 9 Jul 2004 23:19:30 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004070923192619128 ; Fri, 09 Jul 2004 23:19:26 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA29461; Fri, 09 Jul 2004 23:20:17 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma029413; Fri, 09 Jul 2004 23:19:49 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA28220 for linac-eng-list; Fri, 09 Jul 2004 12:42:05 -0500 (CDT) Received: from sccrmhc11.comcast.net (sccrmhc11.comcast.net [204.127.202.55]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA28216 for ; Fri, 09 Jul 2004 12:42:03 -0500 (CDT) Received: from 204.127.205.149 ([204.127.205.149]) by comcast.net (sccrmhc11) with SMTP id <20040709174132011009n0t4e>; Fri, 09 Jul 2004 17:41:33 +0000 Received: from [68.41.147.77] by 204.127.205.149; Fri, 09 Jul 2004 17:41:31 +0000 Message-id: <070920041741.23339.40EED8CB000D25BA00005B2B2200758942019D0703D2040A03070A9B9C0A900E0B@comcast.net> MIME-version: 1.0 X-Mailer: AT&T Message Center Version 1 (Jun 24 2004) Content-type: TEXT/PLAIN; CHARSET=US-ASCII Precedence: bulk X-Authenticated-Sender: ZGF2ZXN0ZWltZWwubWlyb0Bjb21jYXN0Lm5ldA== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: davesteimel.miro@comcast.net Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net (Linac-eng POST) Subject: Ximatron fluoro monitor Date: Fri, 09 Jul 2004 17:41:31 +0000 I have a brand new, in the box, Siemens 44cm Fluoro monitor with manual. I would think this should work for you since Siemens used to sell the Ximatron. The Siemens p/n on the paperwork is 2844376. There is also a video cable included. I can be reached at 248-563-1116. Dave Steimel From VM Sat Jul 10 13:07:47 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1013" "Friday" "9" "July" "2004" "17:53:52" "-0500" "david hall" "hall.david@lycos.com" nil "44" "RE:" "^From:" nil nil "7" nil nil (number " " mark " david hall Jul 9 44/1013 " thread-indent "\"RE:\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0M00BET266UF@hubbard.azu.nl>; Sat, 10 Jul 2004 02:46:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071002465321366 ; Sat, 10 Jul 2004 02:46:53 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id CAA13269; Sat, 10 Jul 2004 02:47:44 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma013263; Sat, 10 Jul 2004 02:47:37 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA03333 for linac-eng-list; Fri, 09 Jul 2004 17:54:24 -0500 (CDT) Received: from webmail-outgoing.us4.outblaze.com (webmail-outgoing.us4.outblaze.com [205.158.62.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA03329 for ; Fri, 09 Jul 2004 17:54:22 -0500 (CDT) Received: from wfilter.us4.outblaze.com (wfilter.us4.outblaze.com [205.158.62.180]) by webmail-outgoing.us4.outblaze.com (Postfix) with QMQP id 3B5B11804B67 for ; Fri, 09 Jul 2004 22:53:52 +0000 (GMT) Received: by ws7-1.us4.outblaze.com (Postfix, from userid 1001) id 1AEB086AE1; Fri, 09 Jul 2004 22:53:52 +0000 (GMT) Received: from [68.122.49.61] by ws7-1.us4.outblaze.com with http for hall.david@lycos.com; Fri, 09 Jul 2004 17:53:52 -0500 Message-id: <20040709225352.1AEB086AE1@ws7-1.us4.outblaze.com> MIME-version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Content-type: text/plain; charset=iso-8859-1 Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-OB-Received: from unknown (208.36.123.30) by wfilter.us4.outblaze.com; 9 Jul 2004 22:52:14 -0000 X-Originating-Ip: 68.122.49.61 X-Originating-Server: ws7-1.us4.outblaze.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: david hall Sender: owner-linac-eng@plato.aristotle.net To: "Kyle, John" , kim yeung , Linac-Eng Subject: RE: Date: Fri, 09 Jul 2004 17:53:52 -0500 bike shops usually carry it.. Dave Hall ----- Original Message ----- From: "Kyle, John" Date: Fri, 9 Jul 2004 09:47:37 -0500 To: "kim yeung" ,"Linac-Eng" Subject: RE: > In the U.S. we can buy it at the hardware store. I am sure Varian has a > part # if you can't find it somewhere else. > > -----Original Message----- > From: kim yeung [mailto:kimyeungwk@yahoo.co.uk] > Sent: Friday, July 09, 2004 3:56 AM > To: Linac-Eng > Subject: > > > Hi Colleagues, > > Could anyone advise the source of Tri-Flow? > > Thanks in advance. > > Kim Yeung > > > > _____ > > > ALL-NEW Yahoo! Messenger - sooooo many all-new ways to express yourself > -- _______________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC=lycos10 From VM Mon Jul 12 16:28:30 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["5933" "Monday" "12" "July" "2004" "13:12:09" "+0800" "=?big5?B?ZmFpY2hpY2hhbg==?=" "faichichan@sinaman.com" nil "88" "=?big5?B?aW50ZXJtaXR0ZW50IGludGVybG9ja3Mgb2YgU0wxNQ==?=" "^From:" nil nil "7" nil nil (number " " mark " =?big5?B?ZmFpY2hpY2hhbg==?= Jul 12 88/5933 " thread-indent "\"=?big5?B?aW50ZXJtaXR0ZW50IGludGVybG9ja3Mgb2YgU0wxNQ==?=\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0Q00G659PE9E@hubbard.azu.nl>; Mon, 12 Jul 2004 09:20:30 +0200 (MET DST) Received: from armstrong.azu.nl 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majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: =?big5?B?ZmFpY2hpY2hhbg==?= Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: =?big5?B?aW50ZXJtaXR0ZW50IGludGVybG9ja3Mgb2YgU0wxNQ==?= Date: Mon, 12 Jul 2004 13:12:09 +0800 This is a multi-part message in MIME format. --Boundary_(ID_xwqAqxxeyKJCIzeDxHtjnQ) Content-type: text/plain; charset=big5 Content-disposition: inline Content-transfer-encoding: base64 X-MIME-Autoconverted: from 8bit to base64 by plato.aristotle.net id AAA10070 DQoNCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQ0KrX2kaKWnrPy7eaVA rMms/Lt5vsey3zOtq73gIC0NCmh0dHA6Ly9hZGltYWdlcy5zaW5hLmNvbS5oay9BTEVfMDcw NC5odG1sDQqtsrdzqqkgsF24Z8BXuUShR6r3oUKq0aFCttcgpleuYaTAqlIgpf63c9q7qmsg LQ0KaHR0cDovL2ZpbmFuY2Uuc2luYS5jb20uaGsvDQqltLPCsU6hSSC+U6RqRKFJuUPAuL73 sKunS7ZPqrGhSSAtDQpodHRwOi8vZ2FtZS5zaW5hLmNvbS5oay8NCg== 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mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071215521006670 ; Mon, 12 Jul 2004 15:52:10 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id PAA08601; Mon, 12 Jul 2004 15:53:02 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma008516; Mon, 12 Jul 2004 15:52:47 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA13694 for linac-eng-list; Mon, 12 Jul 2004 06:20:18 -0500 (CDT) Received: from hotmail.com (bay3-dav29.bay3.hotmail.com [65.54.169.59]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA13683 for ; Mon, 12 Jul 2004 06:20:15 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 12 Jul 2004 04:19:45 -0700 Received: from 4.160.24.48 by bay3-dav29.bay3.hotmail.com with DAV; Mon, 12 Jul 2004 11:19:45 +0000 X-Sender: tforsgren@msn.com Message-id: MIME-version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_pJiQE+2UiwCjjkE2c16HYw)" Precedence: bulk X-Originating-IP: [4.160.24.48] X-Originating-Email: [tforsgren@msn.com] X-OriginalArrivalTime: 12 Jul 2004 11:19:45.0295 (UTC) FILETIME=[2299E1F0:01C46802] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Timothy Forsgren Sender: owner-linac-eng@plato.aristotle.net To: faichichan , linac-eng@plato.aristotle.net Subject: Re: intermittent interlocks of SL15 Date: Mon, 12 Jul 2004 07:19:44 -0400 --Boundary_(ID_pJiQE+2UiwCjjkE2c16HYw) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable sounds like it's time to change the thyratron. ----- Original Message ----- From: faichichan Sent: Monday, July 12, 2004 5:15 AM To: linac-eng@plato.aristotle.net Subject: intermittent interlocks of SL15 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =E8=BF=AA=E5=A3=AB=E5=B0=BC=E7=BE=8E=E8=AA=9E=E4=B8=96=E7=95=8C=E7=BE=8E=E8= =AA=9E=E5=AD=B8=E7=BF=923=E9=87=8D=E8=B3=9E - http://adimages.sina.com.hk/ALE_0704.html =E9=9D=A9=E6=96=B0=E7=89=88 =E8=B2=A1=E7=B6=93=E9=A0=BB=E9=81=93=EF=BC=9A= =E9=87=91=E3=80=81=E8=82=A1=E3=80=81=E5=8C=AF =E5=90=8D=E5=AE=B6=E5=88=86= =E6=9E=90 =E5=85=A8=E6=96=B0=E7=9D=87=E6=B3=95 - http://finance.sina.com.hk/ =E6=89=93=E9=BA=BB=E5=B0=87=EF=BC=81 =E9=8B=A4=E5=A4=A7D=EF=BC=81=E9=81=8A= =E6=88=B2=E6=A9=9F=E9=AC=A5=E5=85=8D=E8=B2=BB=E7=8E=A9=EF=BC=81 - http://game.sina.com.hk/ Hi everybody: =20 About the intermittent interlocks of Elekta SL15, it was already solved b= y reducing the Reservoir heater voltage of Thyratron to 4.8V from 5.6V th= at is required voltage stamped on chassis of Thyratron. The higher heater= voltage of Thyratron causes Magnetron generates higher intensity of nois= e, I think. But reduction of heater voltage results in shrinking life of = Thyratron. How can I do to compromise this? =20 =20 fai =20 --Boundary_(ID_pJiQE+2UiwCjjkE2c16HYw) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable

sounds like it= 's time to change the thyratron.

= ----- Original Message -----

From: faichichan

Sent: Monday, July 12, 2004 5:15 AM

To: linac-eng@plato.aristotle.net
=
Subject: intermittent interlocks o= f SL15

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D
=E8=BF=AA=E5=A3=AB=E5=B0=BC=E7=BE=8E=E8=AA=9E=E4=B8=96=E7=95= =8C=E7=BE=8E=E8=AA=9E=E5=AD=B8=E7=BF=923=E9=87=8D=E8=B3=9E -
http://ad= images.sina.com.hk/ALE_0704.html
=E9=9D=A9=E6=96=B0=E7=89=88 =E8=B2=A1= =E7=B6=93=E9=A0=BB=E9=81=93=EF=BC=9A=E9=87=91=E3=80=81=E8=82=A1=E3=80=81=E5= =8C=AF =E5=90=8D=E5=AE=B6=E5=88=86=E6=9E=90 =E5=85=A8=E6=96=B0=E7=9D=87=E6= =B3=95 -
http://finance.sina.com.hk/
=E6=89=93=E9=BA=BB=E5=B0=87=EF= =BC=81 =E9=8B=A4=E5=A4=A7D=EF=BC=81=E9=81=8A=E6=88=B2=E6=A9=9F=E9=AC=A5=E5= =85=8D=E8=B2=BB=E7=8E=A9=EF=BC=81 -
http://game.sina.com.hk/
=

Hi everybody:<= /SPAN>

About the intermitt= ent interlocks of Elekta SL15, it was already solved by reducing the Rese= rvoir heater voltage of Thyratron to 4.8V from 5.6V that is required volt= age stamped on chassis of Thyratron. The higher heater voltage of Thyratr= on causes Magnetron generates higher intensity of noise, I think. But red= uction of heater voltage results in shrinking life of Thyratron. How can = I do to compromise this?

= fai

<= /SPAN>

--Boundary_(ID_pJiQE+2UiwCjjkE2c16HYw)-- From VM Tue Jul 13 09:40:11 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3893" "Monday" "12" "July" "2004" "06:25:29" "-0600" "Lollar, James" "LollarJ@exempla.org" nil "99" "Siemens M2 Intermittent IO Relay Fault" "^From:" nil nil "7" nil nil (number " " mark " Lollar, James Jul 12 99/3893 " thread-indent "\"Siemens M2 Intermittent IO Relay Fault\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0Q00DGPUFGLK@hubbard.azu.nl>; Mon, 12 Jul 2004 16:47:45 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071216473908878 ; Mon, 12 Jul 2004 16:47:39 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id QAA19632; Mon, 12 Jul 2004 16:48:32 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma019506; Mon, 12 Jul 2004 16:48:12 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id HAA14475 for linac-eng-list; Mon, 12 Jul 2004 07:26:01 -0500 (CDT) Received: from ehc-sjh-mail2.exempla.org ([170.188.202.17]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id HAA14471 for ; Mon, 12 Jul 2004 07:25:59 -0500 (CDT) Message-id: <1A52785828ABD7428AAFAF70E2A5A7E5DE0644@ehc-sjh-mail2.exempla.org> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_q8ZOrjr2lv4jbM/qaLDVjA)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message Thread-Topic: Siemens M2 Intermittent IO Relay Fault Thread-Index: AcRoC1FP2l6lsuiAS0KZCiiNY5dD/Q== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lollar, James" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Siemens M2 Intermittent IO Relay Fault Date: Mon, 12 Jul 2004 06:25:29 -0600 This is a multi-part message in MIME format. --Boundary_(ID_q8ZOrjr2lv4jbM/qaLDVjA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Hello to the list server: Have an interesting intermittent problem with my Siemens M2 Unit Serial # 2678 (1996) Single energy Unit (6X) Just about every morning I get a IO relay fault error # 86 ( "K' command from IO Controller : bits unequal (02 00) Bad IO relay Board). I have replaced IO Relay board 2X with same results. . On relay board the only hint that I am receiving thus far is that the Trig EN 1 is not on (Green) and T1 is tripped. This error only happens after energy & MU has been selected & you select program, then IO relay fault will pop up. By turning off the unit and bringing it back up this fault will go away so......this has been a real problem to T/S. Any suggestions would be greatly appreciated. =20 Thanks in advance=20 =20 James Lollar Exempla Saint Joseph & Exempla Lutheran Medical Center Linac/Imaging Engineer 303-837-7795 Office 303-829-3197 Cell 303-837-6557 Fax 303-897-2019 Pager lollarj@exempla.org =20 =20 =20 --Boundary_(ID_q8ZOrjr2lv4jbM/qaLDVjA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

Hello = to the list=20 server:

Have = an interesting=20 intermittent problem with my Siemens M2 Unit Serial # 2678 (1996) Single = energy=20 Unit (6X)

Just = about every=20 morning I get a IO relay fault error # 86 ( "K' command from IO = Controller=20 : bits unequal (02 00) Bad IO relay Board). I have replaced IO Relay = board 2X=20 with same results. . On relay board the only hint that I am receiving = thus far=20 is that the Trig EN 1 is not on (Green) and T1 is tripped. This = error only=20 happens after energy & MU has been selected & you select = program, then=20 IO relay fault will pop up. By turning off the unit and bringing=20 it back up this fault will go away so......this has been a real = problem to=20 T/S. Any suggestions would be greatly appreciated.

Thanks = in=20 advance

James Lollar

Exempla Saint = Joseph=20 &

Exempla Lutheran = Medical=20 Center

Linac/Imaging=20 Engineer

303-837-7795=20 Office

303-829-3197=20 Cell

303-837-6557=20 Fax

303-897-2019=20 Pager

lollarj@exempla.org<= /A>

=00 --Boundary_(ID_q8ZOrjr2lv4jbM/qaLDVjA)-- From VM Tue Jul 13 09:40:11 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1793" "Monday" "12" "July" "2004" "14:17:34" "-0500" "Chris Dyke" "Chris.Dyke@cancercare.mb.ca" nil "55" "Re: Siemens M2 Intermittent IO Relay Fault" "^From:" nil nil "7" nil nil (number " " mark " Chris Dyke Jul 12 55/1793 " thread-indent "\"Re: Siemens M2 Intermittent IO Relay Fault\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0R00KRLEEG4C@hubbard.azu.nl>; Mon, 12 Jul 2004 23:59:07 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071223590316085 ; Mon, 12 Jul 2004 23:59:03 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA07680; Mon, 12 Jul 2004 23:59:56 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaf07641; Mon, 12 Jul 2004 23:59:26 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA22283 for linac-eng-list; Mon, 12 Jul 2004 14:20:17 -0500 (CDT) Received: from dangerfield.cancercare.mb.ca ([192.139.125.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA22279 for ; Mon, 12 Jul 2004 14:20:15 -0500 (CDT) Received: (from uucp@localhost) by dangerfield.cancercare.mb.ca (8.11.6+Sun/8.11.6) id i6CJK5d13559 for ; Mon, 12 Jul 2004 14:20:05 -0500 (CDT) Received: from UNKNOWN(172.18.125.27), claiming to be "Chaos.cancercare.mb.ca" via SMTP by dangerfield, id smtpdAAAPIaafA; Mon Jul 12 19:18:26 2004 Received: from CCMD01-MTA by Chaos.cancercare.mb.ca with Novell_GroupWise; Mon, 12 Jul 2004 14:18:26 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 From: Chris Dyke Sender: owner-linac-eng@plato.aristotle.net To: LollarJ@exempla.org, linac-eng@plato.aristotle.net Subject: Re: Siemens M2 Intermittent IO Relay Fault Date: Mon, 12 Jul 2004 14:17:34 -0500 James, Each function controller sends out a pulse that is monitored by the watchdog(Hand Control Interface) PCboard. The schematic is in the Hand Control section of your books. Make sure that each signal is there with a scope. I forget right now how big and how long the pulses are, but it will be clear once you compare all of them. It is very possible that one of the FC's is not sending out its pulse because of either a bad FC or a broken wire. There is also a bank of LEDs DS4-DS11 where one will light if the pulse is not detected in a certain time frame...have a quick look when the problem comes up to see if one is lit. good luck, Chris >>> "Lollar, James" 07/12/04 07:25AM >>> Hello to the list server: Have an interesting intermittent problem with my Siemens M2 Unit Serial # 2678 (1996) Single energy Unit (6X) Just about every morning I get a IO relay fault error # 86 ( "K' command from IO Controller : bits unequal (02 00) Bad IO relay Board). I have replaced IO Relay board 2X with same results. . On relay board the only hint that I am receiving thus far is that the Trig EN 1 is not on (Green) and T1 is tripped. This error only happens after energy & MU has been selected & you select program, then IO relay fault will pop up. By turning off the unit and bringing it back up this fault will go away so......this has been a real problem to T/S. Any suggestions would be greatly appreciated. Thanks in advance James Lollar Exempla Saint Joseph & Exempla Lutheran Medical Center Linac/Imaging Engineer 303-837-7795 Office 303-829-3197 Cell 303-837-6557 Fax 303-897-2019 Pager lollarj@exempla.org Chris Dyke Electronic Technologist Dept of Nuclear Electronics CancerCare Manitoba (204)787-2192 (204)775-1684 Fax From VM Tue Jul 13 16:30:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["442" "Tuesday" "13" "July" "2004" "08:08:01" "+0200" "Thomas Reinbeck" "thomasreinbeck@vinzenz.de" nil "13" "DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0" "^From:" nil nil "7" nil nil (number " " mark " Thomas Reinbeck Jul 13 13/442 " thread-indent "\"DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0S00FPC5OERK@hubbard.azu.nl>; Tue, 13 Jul 2004 09:48:43 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071309483924259 ; Tue, 13 Jul 2004 09:48:39 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id JAA28108; Tue, 13 Jul 2004 09:49:32 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma028029; Tue, 13 Jul 2004 09:49:04 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id BAA03015 for linac-eng-list; Tue, 13 Jul 2004 01:08:38 -0500 (CDT) Received: from smtp1.BelWue.DE (smtp1.BelWue.de [129.143.2.12]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA03011 for ; Tue, 13 Jul 2004 01:08:36 -0500 (CDT) Received: from proxy.vinzenz.de (rechner1.marienhospital.s.BelWue.DE [129.143.100.162]) by smtp1.BelWue.DE with ESMTP id i6D68YDI014151 for ; Tue, 13 Jul 2004 08:08:35 +0200 (MEST thomasreinbeck@vinzenz.de) Received: from localhost (localhost [127.0.0.1]) by proxy.vinzenz.de (Postfix) with ESMTP id 7FB741ACB for ; Tue, 13 Jul 2004 08:30:21 +0200 (CEST) Received: from limes.vinzenz.de (unknown [10.10.99.2]) by proxy.vinzenz.de (Postfix) with SMTP id B85AD17E7 for ; Tue, 13 Jul 2004 08:30:17 +0200 (CEST) Received: from D_Marienhospital-Message_Server by limes.vinzenz.de with Novell_GroupWise; Tue, 13 Jul 2004 08:08:30 +0200 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 Precedence: bulk Virus-Scanned: by Marienhospital-Stuttgart X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id BAA03012 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Thomas Reinbeck Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, dicomrt@yahoogroups.com Subject: DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0 Date: Tue, 13 Jul 2004 08:08:01 +0200 Hi, we receive an error < C-STORE-RSP Service status code = A901 >on our PLATO server from the ELEKTA RTD, which means < Data set does not match SOP class -Invalid DICOM message > The logfile shows me: < Low level DICOM linrary error: Type 1(C) value may not be NULL; DICOM Tag = 000,8, 1155 > In tag 0008,1155 Referenced SOP Instance UID sends PLATO a value, which is not accepted by RTD. Any suggestions are welcome. TIA Thomas From VM Tue Jul 13 16:30:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2442" "Tuesday" "13" "July" "2004" "05:31:44" "-0600" "Lollar, James" "LollarJ@exempla.org" nil "73" "RE: Siemens M2 Intermittent IO Relay Fault" "^From:" nil nil "7" nil nil (number " " mark " Lollar, James Jul 13 73/2442 " thread-indent "\"RE: Siemens M2 Intermittent IO Relay Fault\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0S003POLLDGJ@hubbard.azu.nl>; Tue, 13 Jul 2004 15:32:29 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071315322503156 ; Tue, 13 Jul 2004 15:32:25 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id PAA00941; Tue, 13 Jul 2004 15:33:19 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma000900; Tue, 13 Jul 2004 15:32:58 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id GAA08940 for linac-eng-list; Tue, 13 Jul 2004 06:32:41 -0500 (CDT) Received: from ehc-sjh-mail2.exempla.org ([170.188.202.17]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA08936 for ; Tue, 13 Jul 2004 06:32:39 -0500 (CDT) Message-id: <1A52785828ABD7428AAFAF70E2A5A7E5DE0646@ehc-sjh-mail2.exempla.org> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 8bit Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Content-class: urn:content-classes:message Thread-Topic: Siemens M2 Intermittent IO Relay Fault Thread-Index: AcRoT1nx48CEUc6GRJi9o9eLLAbowAAfUqRQ X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id GAA08937 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lollar, James" Sender: owner-linac-eng@plato.aristotle.net To: Chris Dyke , linac-eng@plato.aristotle.net Subject: RE: Siemens M2 Intermittent IO Relay Fault Date: Tue, 13 Jul 2004 05:31:44 -0600 Thanks to all who responded.....It seems at this time it was FC #3 Beam On ....causing my intermittent problem. Replaced this AM & will check again tomorrow AM. Again Thanks to all. James Lollar Exempla Saint Joseph & Exempla Lutheran Medical Center Linac/Imaging Engineer 303-837-7795 Office 303-829-3197 Cell 303-837-6557 Fax 303-897-2019 Pager lollarj@exempla.org -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Chris Dyke Sent: Monday, July 12, 2004 1:18 PM To: Lollar, James; linac-eng@plato.aristotle.net Subject: Re: Siemens M2 Intermittent IO Relay Fault James, Each function controller sends out a pulse that is monitored by the watchdog(Hand Control Interface) PCboard. The schematic is in the Hand Control section of your books. Make sure that each signal is there with a scope. I forget right now how big and how long the pulses are, but it will be clear once you compare all of them. It is very possible that one of the FC's is not sending out its pulse because of either a bad FC or a broken wire. There is also a bank of LEDs DS4-DS11 where one will light if the pulse is not detected in a certain time frame...have a quick look when the problem comes up to see if one is lit. good luck, Chris >>> "Lollar, James" 07/12/04 07:25AM >>> Hello to the list server: Have an interesting intermittent problem with my Siemens M2 Unit Serial # 2678 (1996) Single energy Unit (6X) Just about every morning I get a IO relay fault error # 86 ( "K' command from IO Controller : bits unequal (02 00) Bad IO relay Board). I have replaced IO Relay board 2X with same results. . On relay board the only hint that I am receiving thus far is that the Trig EN 1 is not on (Green) and T1 is tripped. This error only happens after energy & MU has been selected & you select program, then IO relay fault will pop up. By turning off the unit and bringing it back up this fault will go away so......this has been a real problem to T/S. Any suggestions would be greatly appreciated. Thanks in advance James Lollar Exempla Saint Joseph & Exempla Lutheran Medical Center Linac/Imaging Engineer 303-837-7795 Office 303-829-3197 Cell 303-837-6557 Fax 303-897-2019 Pager lollarj@exempla.org Chris Dyke Electronic Technologist Dept of Nuclear Electronics CancerCare Manitoba (204)787-2192 (204)775-1684 Fax From VM Wed Jul 14 06:51:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["904" "Tuesday" "13" "July" "2004" "09:34:27" "-0400" "Conn, Calvin R." "CRConn@st-claire.org" nil "18" "" "^From:" nil nil "7" nil nil (number " " mark " Conn, Calvin R. Jul 13 18/904 " thread-indent "\"\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0S008GLQWUNI@hubbard.azu.nl>; Tue, 13 Jul 2004 17:27:01 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071317265706547 ; Tue, 13 Jul 2004 17:26:57 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id RAA19578; Tue, 13 Jul 2004 17:27:51 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma019516; Tue, 13 Jul 2004 17:27:17 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA11438 for linac-eng-list; Tue, 13 Jul 2004 08:44:22 -0500 (CDT) Received: from scmcmail.st-claire.org ([63.76.91.90]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA11434 for ; Tue, 13 Jul 2004 08:44:20 -0500 (CDT) Received: by scmcmail.st-claire.org with Internet Mail Service (5.5.2655.55) id ; Tue, 13 Jul 2004 09:34:31 -0400 Message-id: <570A1A6B6FADD04DABC7B4CBCAE0F18001C3673B@scmcmail.st-claire.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2655.55) 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 From: "Conn, Calvin R." Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Date: Tue, 13 Jul 2004 09:34:27 -0400 Hello Thomas, I don't have either of these devices so this is only a general comment. The ELEKTA is trying to send a blank or improperly formatted value for Referenced SOP Instance UID. Without looking at the header of the DICOM message I can't tell which. Whenever a SOP is formed for transfer an UID, unique identifier, is created uniquely identifying that message and is usually a required tag. The software can be written to ignore this tag but usually does not. The first thing I would do is report this error to the manufacturer of the two devices. There may be some configuration settings in the two devices that either causes the ELEKTA to not generate this tag like it should or for the PLATO to not ignore this tag as it should. Does this happen all the time or is it random? Calvin R. Conn >>0008,1155 Referenced SOP Instance UID sends PLATO a value, which is >>not accepted by RTD. From VM Wed Jul 14 06:51:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2082" "Tuesday" "13" "July" "2004" "12:13:07" "-0700" "BobGian@u.washington.edu" "BobGian@u.washington.edu" nil "47" "DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0" "^From:" nil nil "7" nil nil (number " " mark " BobGian@u.washing Jul 13 47/2082 " thread-indent "\"DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0T00EL185H1P@hubbard.azu.nl>; Tue, 13 Jul 2004 23:39:20 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071323391812003 ; Tue, 13 Jul 2004 23:39:18 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA25781; Tue, 13 Jul 2004 23:40:12 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma025768; Tue, 13 Jul 2004 23:40:08 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA17085 for linac-eng-list; Tue, 13 Jul 2004 14:13:13 -0500 (CDT) Received: from trumpet.radonc.washington.edu (trumpet.radonc.washington.edu [128.208.141.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA17079; Tue, 13 Jul 2004 14:13:11 -0500 (CDT) Received: (from bobgian@localhost) by trumpet.radonc.washington.edu (8.11.6/8.11.6) id i6DJD7t03638; Tue, 13 Jul 2004 12:13:07 -0700 Reply-to: BobGian@u.washington.edu Message-id: <200407131913.i6DJD7t03638@trumpet.radonc.washington.edu> MIME-version: 1.0 Content-type: TEXT/PLAIN; CHARSET=US-ASCII Precedence: bulk X-Authentication-warning: trumpet.radonc.washington.edu: bobgian set sender to BobGian@U.Washington.edu using -f From: BobGian@u.washington.edu Sender: owner-linac-eng@plato.aristotle.net To: owner-linac-eng@plato.aristotle.net, thomasreinbeck@vinzenz.de Cc: linac-eng@plato.aristotle.net, dicomrt@yahoogroups.com Subject: DICOM RTplan transfer PLATO Sunrise > ELEKTA RTD 5.0 Date: Tue, 13 Jul 2004 12:13:07 -0700 > Hi, > > we receive an error < C-STORE-RSP Service status code = A901 >on our PLATO server from the ELEKTA RTD, > which means < Data set does not match SOP class -Invalid DICOM message > > The logfile shows me: > < Low level DICOM linrary error: Type 1(C) value may not be NULL; DICOM Tag = 000,8, 1155 > > In tag 0008,1155 Referenced SOP Instance UID sends PLATO a value, which is not accepted by RTD. > Any suggestions are welcome. > > TIA > Thomas Sounds like PLATO needs to send real data, even if it is a made-up string, instead of a null value in that slot. We (at the University of Washington Radiation Oncology dept) have built both a DICOM server and a DICOM client (in our treatment-planning system) from scratch. During testing we have run into exactly the problem you mention (but with other slots) several times. Your best bet is to look at the DICOM Conformance Report (required if an implementation claims to conform to the DICOM standard) for the ELEKTA RTD system and see exactly what Elekta expects in that slot. I have a copy of Elekta's Conformance Report and just looked it up. It is supposed to be a UID string (one of those long unique identifiers like "1.2.840.113619.2.134.1762530792.1899.1087948231.180" that identify data object instances). However, the Elekta report says that this particular slot is ignored. If so, I don't see why you would be getting an error it it is null. However, it could be that it must be a non-null string even if that string later gets ignored (ie, it is required by the standard even though Elekta chooses to ignore it). In that case, just put in a made-up string like the sample above. That's what we do in such cases. If I misinterpreted your message and it is ELEKTA that is sending to a server on PLATO, then you will have to take what I said above and swap PLATO and ELEKTA everywhere. I don't have PLATO's Conformance Report, so I can't help you there, but the same "phony string" trick probably would work. I hope this helps. -Bob (Bob Giansiracusa, Rad Onc Dept, U of Wash Med Center) From VM Wed Jul 14 06:51:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1051" "Wednesday" "14" "July" "2004" "11:23:53" "+0930" "Andrew Frolov" "Afrolov@mail.rah.sa.gov.au" nil "29" "Linac Engineering On-line" "^From:" nil nil "7" nil nil (number " " mark " Andrew Frolov Jul 14 29/1051 " thread-indent "\"Linac Engineering On-line\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0T00IQERCKGZ@hubbard.azu.nl>; Wed, 14 Jul 2004 06:33:58 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071406335616208 ; Wed, 14 Jul 2004 06:33:56 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id GAA24846; Wed, 14 Jul 2004 06:34:49 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024824; Wed, 14 Jul 2004 06:34:33 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA22263 for linac-eng-list; Tue, 13 Jul 2004 20:55:12 -0500 (CDT) 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 UAA22250 for ; Tue, 13 Jul 2004 20:55:09 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.12.10/8.12.7) with ESMTP id i6E1saoH013726 for ; Wed, 14 Jul 2004 11:24:36 +0930 (CST) Received: from rahsun153.rah.sa.gov.au (mailhub.rah.sa.gov.au [10.19.241.188]) by adl0133.systems.sa.gov.au INCOMING (8.12.10/8.12.7) with ESMTP id i6E1saSH013721 for ; Wed, 14 Jul 2004 11:24:36 +0930 (CST) Received: from mail.rah.sa.gov.au (MERCURY-2 [10.19.241.91]) by rahsun153.rah.sa.gov.au (8.12.9/8.12.8) with ESMTP id i6E1sYPf000228 for ; Wed, 14 Jul 2004 11:24:35 +0930 (CST) Received: from Spooler by mail.rah.sa.gov.au (Mercury/32 v4.01a) ID MO000C04; Wed, 14 Jul 2004 11:24:36 +0930 Received: from spooler by mail.rah.sa.gov.au (Mercury/32 v4.01a); Wed, 14 Jul 2004 11:24:08 +0930 Message-id: <200407140154.i6E1sYPf000228@rahsun153.rah.sa.gov.au> Organization: Royal Adelaide Hospital MIME-version: 1.0 X-Mailer: Pegasus Mail for Win32 (v3.12a) 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 From: Andrew Frolov Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Linac Engineering On-line Date: Wed, 14 Jul 2004 11:23:53 +0930 Dear colleagues, I have been using this mailing list for more than five years and I greatly appreciate it. The only inconvenience is that we do not have a common knowledge database we can refer to before asking a question. Therefore I think that an on-line forum would be an advantage. I am willing to support and host such forum and I have already created one. So, please, visit the forum on http://www.primmy.com/linac_phorum/index.php Browse through it, get familiar with functions and services, register, take a test-drive by posting you questions and let me know what you think. In my opinion the forum will offer many advantages, one of which is a database that can be viewed at any time. The only disadvantage is that it can not notify everybody about new requests, although it will notify you about replies if the correct settings are chosen in profile. Anyway, come and see for yourself. See you there. Andrew Frolov Manager, RE Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au From VM Thu Jul 15 07:25:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["437" "Wednesday" "14" "July" "2004" "15:44:08" "+0100" "Warren, John" "john.warren@addenbrookes.nhs.uk" nil "16" "Ximatron CX" "^From:" nil nil "7" nil nil (number " " mark " Warren, John Jul 14 16/437 " thread-indent "\"Ximatron CX\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0U00DBIQGMDD@hubbard.azu.nl>; Wed, 14 Jul 2004 19:12:23 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071419122102182 ; Wed, 14 Jul 2004 19:12:21 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA12233; Wed, 14 Jul 2004 19:13:16 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma012217; Wed, 14 Jul 2004 19:12:53 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA02546 for linac-eng-list; Wed, 14 Jul 2004 09:42:31 -0500 (CDT) Received: from mail20.nhs.uk (mail20.nhs.uk [62.6.139.212]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA02542 for ; Wed, 14 Jul 2004 09:42:28 -0500 (CDT) Received: from [10.191.254.3] (helo=relayint1.nhs.uk) by mail20.nhs.uk with esmtp (MTC MTA) id 1BkkxK-0002BF-6k for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 7.0.008) id 40926E2F01188B2A for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-1 7.0.008) (authenticated as smtp_addenbrookes_nhs_uk@es2002.nhs.uk) id 40F530A0000118F2 for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: by smtp.addenbrookes.nhs.uk with Internet Mail Service (5.5.2653.19) id <3773M98A>; Wed, 14 Jul 2004 15:44:08 +0100 Message-id: <07EBC420AD13D5118C6A0002A52865C20BF40D6D@smtp.addenbrookes.nhs.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 From: "Warren, John" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Ximatron CX Date: Wed, 14 Jul 2004 15:44:08 +0100 We are in the process of taking out & disposing of a Ximatron CX with Fischer Micro X 75 ( 1989 vintage ) that is/was fully functional when last used. If anyone is interested in any bits for spares etc then you are more than welcome to come & collect - best be quick as the room has to be empty in 3 weeks. Further information can be given by contacting: Jim Harris, Department Head Addenbrooke's Hospital Cambridge 01223 - 216399 From VM Thu Jul 15 07:25:05 2004 X-VM-v5-Data: ([nil nil nil t nil nil nil nil nil] ["437" "Wednesday" "14" "July" "2004" "15:44:08" "+0100" "Warren, John" "john.warren@addenbrookes.nhs.uk" nil "16" "Ximatron CX" "^From:" nil nil "7" nil nil (number " " mark " F Warren, John Jul 14 16/437 " thread-indent "\"Ximatron CX\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0U00DBIQGMDD@hubbard.azu.nl>; Wed, 14 Jul 2004 19:12:23 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071419122102182 ; Wed, 14 Jul 2004 19:12:21 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA12233; Wed, 14 Jul 2004 19:13:16 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma012217; Wed, 14 Jul 2004 19:12:53 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA02546 for linac-eng-list; Wed, 14 Jul 2004 09:42:31 -0500 (CDT) Received: from mail20.nhs.uk (mail20.nhs.uk [62.6.139.212]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA02542 for ; Wed, 14 Jul 2004 09:42:28 -0500 (CDT) Received: from [10.191.254.3] (helo=relayint1.nhs.uk) by mail20.nhs.uk with esmtp (MTC MTA) id 1BkkxK-0002BF-6k for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: from relay.nhs.uk (194.62.42.141) by relayint1.nhs.uk (Syntegra-I1 7.0.008) id 40926E2F01188B2A for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: from exchange2.hillsrd (193.130.72.200) by relay.nhs.uk (Syntegra-1 7.0.008) (authenticated as smtp_addenbrookes_nhs_uk@es2002.nhs.uk) id 40F530A0000118F2 for linac-eng@plato.aristotle.net; Wed, 14 Jul 2004 15:41:58 +0100 Received: by smtp.addenbrookes.nhs.uk with Internet Mail Service (5.5.2653.19) id <3773M98A>; Wed, 14 Jul 2004 15:44:08 +0100 Message-id: <07EBC420AD13D5118C6A0002A52865C20BF40D6D@smtp.addenbrookes.nhs.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 From: "Warren, John" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Ximatron CX Date: Wed, 14 Jul 2004 15:44:08 +0100 We are in the process of taking out & disposing of a Ximatron CX with Fischer Micro X 75 ( 1989 vintage ) that is/was fully functional when last used. If anyone is interested in any bits for spares etc then you are more than welcome to come & collect - best be quick as the room has to be empty in 3 weeks. Further information can be given by contacting: Jim Harris, Department Head Addenbrooke's Hospital Cambridge 01223 - 216399 From VM Fri Jul 16 07:57:26 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3521" "Thursday" "15" "July" "2004" "14:53:11" "-0700" "Randy Wick" "rwick@bccancer.bc.ca" nil "68" "Elekta SL75/5 Thyratron" "^From:" nil nil "7" nil nil (number " " mark " Randy Wick Jul 15 68/3521 " thread-indent "\"Elekta SL75/5 Thyratron\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I0X00FN23ZCQK@hubbard.azu.nl>; Fri, 16 Jul 2004 01:59:38 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071601593505140 ; Fri, 16 Jul 2004 01:59:35 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id CAA17934; Fri, 16 Jul 2004 02:00:30 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma017921; Fri, 16 Jul 2004 02:00:28 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA02466 for linac-eng-list; Thu, 15 Jul 2004 16:50:41 -0500 (CDT) Received: from cwav01.cw.bc.ca (mail2.cw.bc.ca [207.23.159.180]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA02462 for ; Thu, 15 Jul 2004 16:50:39 -0500 (CDT) Received: From server17.bccancer.bc.ca ([205.233.164.254]) by cwav01.cw.bc.ca (WebShield SMTP v4.5 MR1a); id 1089928173729; Thu, 15 Jul 2004 14:49:33 -0700 Received: by SERVER17 with Internet Mail Service (5.5.2653.19) id <36Q23NNB>; Thu, 15 Jul 2004 14:47:05 -0700 Message-id: <6BAF4D075F07D411B30900508B94CBA012F06F65@SERVER20> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_1XsL2W9w6velKLVd6Lzyfg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy Wick Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Elekta SL75/5 Thyratron Date: Thu, 15 Jul 2004 14:53:11 -0700 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_1XsL2W9w6velKLVd6Lzyfg) Content-type: text/plain; CHARSET=US-ASCII We're having a problem with our 75/5. The grid 1 voltage on a relatively new thyratron has risen to above 30V, although it is still working fine. I also noted the terminals on the thyratron for the heater had got quite warm, so that the solder was bubbling up (heater voltage is normal, 6.3V). We put in another used spare thyratron which ran fine also, but again when I went to measure the heater voltage I found the solder in one of the legs was molten after only an hour in the machine. The obvious thing to repair is the connector clip that the thyratron plugs into, but I was wondering if anyone knows of any other problems that might cause this on the 75/5. Suspiciously, the thyratron is mounted upside down so that melted solder won't run out of the thyratron leg. Also, I have been told that a sign of a soon-to-fail thyratron is bubbly, melted solder on the heater legs. Does the thyratron heater tend to overheat in this unit, or is there some other potential failure that I should look for? ------------------------------------------------ Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca --Boundary_(ID_1XsL2W9w6velKLVd6Lzyfg) Content-type: text/html Message

We're having a problem with our 75/5. The grid 1 voltage on a relatively new thyratron has risen to above 30V, although it is still working fine. I also noted the terminals on the thyratron for the heater had got quite warm, so that the solder was bubbling up (heater voltage is normal, 6.3V). We put in another used spare thyratron which ran fine also, but again when I went to measure the heater voltage I found the solder in one of the legs was molten after only an hour in the machine.

The obvious thing to repair is the connector clip that the thyratron plugs into, but I was wondering if anyone knows of any other problems that might cause this on the 75/5. Suspiciously, the thyratron is mounted upside down so that melted solder won't run out of the thyratron leg. Also, I have been told that a sign of a soon-to-fail thyratron is bubbly, melted solder on the heater legs. Does the thyratron heater tend to overheat in this unit, or is there some other potential failure that I should look for?

------------------------------------------------

Randy Wick Radiotherapy Service

Fraser Valley Cancer Centre

Surrey, BC Canada

rwick@bccancer.bc.ca

--Boundary_(ID_1XsL2W9w6velKLVd6Lzyfg)-- From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["631" "Monday" "19" "July" "2004" "15:16:52" "+0200" "per.zetterberg@orebroll.se" "per.zetterberg@orebroll.se" nil "16" "water flow switches" "^From:" nil nil "7" nil nil (number " " mark " per.zetterberg@or Jul 19 16/631 " thread-indent "\"water flow switches\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1300MBETF5EX@hubbard.azu.nl>; Mon, 19 Jul 2004 16:55:05 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071916545922121 ; Mon, 19 Jul 2004 16:54:59 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id QAA15749; Mon, 19 Jul 2004 16:55:57 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma015645; Mon, 19 Jul 2004 16:55:40 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA10149 for linac-eng-list; Mon, 19 Jul 2004 08:17:01 -0500 (CDT) Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id IAA10145 for ; Mon, 19 Jul 2004 08:16:59 -0500 (CDT) Received: from storm.orebroll.se ([192.168.250.152]) by pebble.orebroll.se with Microsoft SMTPSVC(6.0.3790.0); Mon, 19 Jul 2004 15:17:58 +0200 Received: by storm.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Mon, 19 Jul 2004 15:16:54 +0200 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-OriginalArrivalTime: 19 Jul 2004 13:17:58.0181 (UTC) FILETIME=[CF2EA550:01C46D92] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: per.zetterberg@orebroll.se Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: water flow switches Date: Mon, 19 Jul 2004 15:16:52 +0200 Hello, (CL2100 C/D, make 1992) The maintenance course manual (gray) says that the water pump pressure should read between 40-50 psi, but the pressure of our machine reads 70 psi. Could this be bad, indicating that we have partly restricted water tubes and therefore a rise in pressure? The switches are working, only giving FLOW interlocks occasionally and then, from time to time, we clean the switches. Could anyone (please!) give their view of my problem concerning the water pump pressure, thanks! Has any of you built a test rig for the flow switches to confirm the flow level giving FLOW interlock? Regards, Per, Sweden. From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["6096" "Monday" "19" "July" "2004" "10:08:30" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "112" "RE: Elekta SL75/5 Thyratron" "^From:" nil nil "7" nil nil (number " " mark " Maddox, Buford J Jul 19 112/6096 " thread-indent "\"RE: Elekta SL75/5 Thyratron\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I13000T3XNWQJ@hubbard.azu.nl>; Mon, 19 Jul 2004 18:26:26 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071918262325732 ; Mon, 19 Jul 2004 18:26:23 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA26599; Mon, 19 Jul 2004 18:27:20 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma026557; Mon, 19 Jul 2004 18:27:05 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA11304 for linac-eng-list; Mon, 19 Jul 2004 09:09:14 -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 JAA11300 for ; Mon, 19 Jul 2004 09:09:12 -0500 (CDT) Received: by phsexchici2.partners.org with Internet Mail Service (5.5.2657.72) id <36S5SA5K>; Mon, 19 Jul 2004 10:08:34 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E1114664E1@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_iLFAC4Eo1ytP+QFJTto4lQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: 'Randy Wick' , linac-eng@plato.aristotle.net Subject: RE: Elekta SL75/5 Thyratron Date: Mon, 19 Jul 2004 10:08:30 -0400 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_iLFAC4Eo1ytP+QFJTto4lQ) Content-type: text/plain; charset=iso-8859-1 Once the socket has been overheated, it loses its spring tension, and must be replaced. I have had a bad thyratron do this to a socket; the pin was not well soldered inside, and overheated. Intermittent DeQing may also result on other brands of machine, if the DeQ socket is the bad one. You might measure the voltage between the actual pin and the wire at the transformer to check for a high resistance problem. I would replace the socket. The SL75/5 that we had for many years never had this problem. It had one of the most interesting problems I have ever seen, a drop of condensation in one of the AFC cavities that moved around with gantry angle. Drove us crazy looking for the usual cable and connection problems, until we finally opened up the cavity. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Randy Wick Sent: Thursday, July 15, 2004 5:53 PM To: linac-eng@plato.aristotle.net Subject: Elekta SL75/5 Thyratron We're having a problem with our 75/5. The grid 1 voltage on a relatively new thyratron has risen to above 30V, although it is still working fine. I also noted the terminals on the thyratron for the heater had got quite warm, so that the solder was bubbling up (heater voltage is normal, 6.3V). We put in another used spare thyratron which ran fine also, but again when I went to measure the heater voltage I found the solder in one of the legs was molten after only an hour in the machine. The obvious thing to repair is the connector clip that the thyratron plugs into, but I was wondering if anyone knows of any other problems that might cause this on the 75/5. Suspiciously, the thyratron is mounted upside down so that melted solder won't run out of the thyratron leg. Also, I have been told that a sign of a soon-to-fail thyratron is bubbly, melted solder on the heater legs. Does the thyratron heater tend to overheat in this unit, or is there some other potential failure that I should look for? ------------------------------------------------ Randy Wick Radiotherapy Service Fraser Valley Cancer Centre Surrey, BC Canada rwick@bccancer.bc.ca --Boundary_(ID_iLFAC4Eo1ytP+QFJTto4lQ) Content-type: text/html; charset=iso-8859-1 Message

Once the socket has been overheated, it loses its spring tension, and must be replaced. I have had a bad thyratron do this to a socket; the pin was not well soldered inside, and overheated. Intermittent DeQing may also result on other brands of machine, if the DeQ socket is the bad one. You might measure the voltage between the actual pin and the wire at the transformer to check for a high resistance problem. I would replace the socket. The SL75/5 that we had for many years never had this problem. It had one of the most interesting problems I have ever seen, a drop of condensation in one of the AFC cavities that moved around with gantry angle. Drove us crazy looking for the usual cable and connection problems, until we finally opened up the cavity.

Jerry

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Randy Wick
Sent: Thursday, July 15, 2004 5:53 PM
To: linac-eng@plato.aristotle.net
Subject: Elekta SL75/5 Thyratron

We're having a problem with our 75/5. The grid 1 voltage on a relatively new thyratron has risen to above 30V, although it is still working fine. I also noted the terminals on the thyratron for the heater had got quite warm, so that the solder was bubbling up (heater voltage is normal, 6.3V). We put in another used spare thyratron which ran fine also, but again when I went to measure the heater voltage I found the solder in one of the legs was molten after only an hour in the machine.

The obvious thing to repair is the connector clip that the thyratron plugs into, but I was wondering if anyone knows of any other problems that might cause this on the 75/5. Suspiciously, the thyratron is mounted upside down so that melted solder won't run out of the thyratron leg. Also, I have been told that a sign of a soon-to-fail thyratron is bubbly, melted solder on the heater legs. Does the thyratron heater tend to overheat in this unit, or is there some other potential failure that I should look for?

------------------------------------------------

Randy Wick Radiotherapy Service

Fraser Valley Cancer Centre

Surrey, BC Canada

rwick@bccancer.bc.ca

--Boundary_(ID_iLFAC4Eo1ytP+QFJTto4lQ)-- From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1097" "Monday" "19" "July" "2004" "11:54:11" "-0500" "david hall" "hall.david@lycos.com" nil "35" "Re: water flow switches" "^From:" nil nil "7" nil nil (number " " mark " david hall Jul 19 35/1097 " thread-indent "\"Re: water flow switches\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1400EJO4BP5P@hubbard.azu.nl>; Mon, 19 Jul 2004 20:50:14 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071920501329043 ; Mon, 19 Jul 2004 20:50:13 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA11753; Mon, 19 Jul 2004 20:51:10 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma011689; Mon, 19 Jul 2004 20:50:36 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA16047 for linac-eng-list; Mon, 19 Jul 2004 11:54:45 -0500 (CDT) Received: from webmail-outgoing.us4.outblaze.com (webmail-outgoing.us4.outblaze.com [205.158.62.67]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA16042 for ; Mon, 19 Jul 2004 11:54:42 -0500 (CDT) Received: from wfilter.us4.outblaze.com (wfilter.us4.outblaze.com [205.158.62.180]) by webmail-outgoing.us4.outblaze.com (Postfix) with QMQP id F06021801163 for ; Mon, 19 Jul 2004 16:54:11 +0000 (GMT) Received: by ws7-5.us4.outblaze.com (Postfix, from userid 1001) id 3434EC610C; Mon, 19 Jul 2004 16:54:11 +0000 (GMT) Received: from [68.122.48.62] by ws7-5.us4.outblaze.com with http for hall.david@lycos.com; Mon, 19 Jul 2004 11:54:11 -0500 Message-id: <20040719165411.3434EC610C@ws7-5.us4.outblaze.com> MIME-version: 1.0 X-Mailer: MIME-tools 5.41 (Entity 5.404) Content-type: text/plain; charset=iso-8859-1 Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-OB-Received: from unknown (208.36.123.34) by wfilter.us4.outblaze.com; 19 Jul 2004 16:52:15 -0000 X-Originating-Ip: 68.122.48.62 X-Originating-Server: ws7-5.us4.outblaze.com X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: david hall Sender: owner-linac-eng@plato.aristotle.net To: per.zetterberg@orebroll.se, linac-eng@plato.aristotle.net Subject: Re: water flow switches Date: Mon, 19 Jul 2004 11:54:11 -0500 Have you removed and replaced ALL of your waterhoses? Dave Hall ----- Original Message ----- From: per.zetterberg@orebroll.se Date: Mon, 19 Jul 2004 15:16:52 +0200 To: linac-eng@plato.aristotle.net Subject: water flow switches > Hello, > > (CL2100 C/D, make 1992) > > The maintenance course manual (gray) says that the water pump pressure > should read between 40-50 psi, but the pressure of our machine reads 70 psi. > Could this be bad, indicating that we have partly restricted water tubes and > therefore a rise in pressure? The switches are working, only giving FLOW > interlocks occasionally and then, from time to time, we clean the switches. > > Could anyone (please!) give their view of my problem concerning the water > pump pressure, thanks! > Has any of you built a test rig for the flow switches to confirm the flow > level giving FLOW interlock? > > Regards, Per, Sweden. -- _______________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC=lycos10 From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1623" "Monday" "19" "July" "2004" "13:29:38" "-0400" "Nelson, Steve" "nelson@radonc.musc.edu" nil "55" "RE: water flow switches" "^From:" nil nil "7" nil nil (number " " mark " Nelson, Steve Jul 19 55/1623 " thread-indent "\"RE: water flow switches\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1400JAO6EHKD@hubbard.azu.nl>; Mon, 19 Jul 2004 21:35:10 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071921350830063 ; Mon, 19 Jul 2004 21:35:08 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id VAA17918; Mon, 19 Jul 2004 21:36:05 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmap17870; Mon, 19 Jul 2004 21:35:39 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA16537 for linac-eng-list; Mon, 19 Jul 2004 12:31:11 -0500 (CDT) Received: from mopsy2.ccit.musc.edu (mopsy2.ccit.musc.edu [128.23.34.56]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA16533 for ; Mon, 19 Jul 2004 12:31:10 -0500 (CDT) Received: from revere3.musc.edu (revere3.musc.edu [128.23.203.9]) by mopsy2.ccit.musc.edu (8.12.10/8.12.10) with ESMTP id i6JHTdbM022365 for ; Mon, 19 Jul 2004 13:29:39 -0400 Received: from XCHANGE2k.radonc2k.musc.edu (xchange2k.RadOnc.musc.edu [128.23.55.250]) by revere3.musc.edu (8.12.9/8.12.9) with ESMTP id i6JHTcWj021355 for ; Mon, 19 Jul 2004 13:29:38 -0400 (EDT) Message-id: MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 8bit Precedence: bulk content-class: urn:content-classes:message X-MIMEOLE: Produced By Microsoft Exchange V6.0.6487.1 Thread-Topic: water flow switches Thread-Index: AcRts1880Wgy6IwMSu2Uu9cj4B/yhgAAUy6A X-MUSC-MailScanner-Information: Please contact postmstr@musc.edu for more information X-MUSC-MailScanner: Found to be clean X-MUSC-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0, required 4) X-MailScanner-From: nelson@radonc.musc.edu X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id MAA16534 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson, Steve" Sender: owner-linac-eng@plato.aristotle.net To: david hall , per.zetterberg@orebroll.se, linac-eng@plato.aristotle.net Subject: RE: water flow switches Date: Mon, 19 Jul 2004 13:29:38 -0400 65-70 PSI is a normal head pressure for my 2100C (sn 241), 600CD (sn536) and 21EX/S (sn 005). The data in the book is not correct for my machines. Also, Turn the pump off and make sure that the gauge is @ zero. (Sometimes they drift over time.) Stephen -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of david hall Sent: Monday, July 19, 2004 12:54 PM To: per.zetterberg@orebroll.se; linac-eng@plato.aristotle.net Subject: Re: water flow switches Have you removed and replaced ALL of your waterhoses? Dave Hall ----- Original Message ----- From: per.zetterberg@orebroll.se Date: Mon, 19 Jul 2004 15:16:52 +0200 To: linac-eng@plato.aristotle.net Subject: water flow switches > Hello, > > (CL2100 C/D, make 1992) > > The maintenance course manual (gray) says that the water pump pressure > should read between 40-50 psi, but the pressure of our machine reads 70 psi. > Could this be bad, indicating that we have partly restricted water tubes and > therefore a rise in pressure? The switches are working, only giving FLOW > interlocks occasionally and then, from time to time, we clean the switches. > > Could anyone (please!) give their view of my problem concerning the water > pump pressure, thanks! > Has any of you built a test rig for the flow switches to confirm the flow > level giving FLOW interlock? > > Regards, Per, Sweden. -- _______________________________________________ Find what you are looking for with the Lycos Yellow Pages http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default .asp?SRC=lycos10 From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["4830" "Monday" "19" "July" "2004" "12:08:20" "-0700" "JamesR.Wilson@providence.org" "JamesR.Wilson@providence.org" nil "151" "Varian Millenium MLC" "^From:" nil nil "7" nil nil (number " " mark " JamesR.Wilson@pro Jul 19 151/4830 " thread-indent "\"Varian Millenium MLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14000H79Y2AB@hubbard.azu.nl>; Mon, 19 Jul 2004 22:51:41 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004071922513731376 ; Mon, 19 Jul 2004 22:51:37 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA26832; Mon, 19 Jul 2004 22:52:35 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma026784; Mon, 19 Jul 2004 22:52:10 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA18251 for linac-eng-list; Mon, 19 Jul 2004 14:09:04 -0500 (CDT) Received: from phsornt424.or.providence.org (phsor-nat2.providence.org [170.220.2.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA18247 for ; Mon, 19 Jul 2004 14:09:00 -0500 (CDT) Received: from PickupDirectory by phsornt424.or.providence.org with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id PBRWPVCM; Mon, 19 Jul 2004 12:08:40 -0700 Received: from phsorcon06.or.providence.org ([170.220.78.187]) by phsornt424.or.providence.org with Microsoft SMTPSVC(5.0.2195.2966); Mon, 19 Jul 2004 12:08:39 -0700 Received: from phsormsg02.or.providence.org ([170.220.75.191]) by phsorcon06.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Mon, 19 Jul 2004 12:06:47 -0700 Message-id: <0838AEB7ABB0C04481781A84D6DE7C6C19F3FA@phsormsg02.or.providence.org> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_liZyL5TJixL3O2Fov8VdeA)" Importance: normal Precedence: bulk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Content-Class: urn:content-classes:message Thread-Topic: Varian Millenium MLC thread-index: AcRtw8Fr4CL6fb50SbmYTZjo7det8A== X-OriginalArrivalTime: 19 Jul 2004 19:06:47.0155 (UTC) FILETIME=[89D2A430:01C46DC3] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JamesR.Wilson@providence.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Varian Millenium MLC Date: Mon, 19 Jul 2004 12:08:20 -0700 This is a multi-part message in MIME format. --Boundary_(ID_liZyL5TJixL3O2Fov8VdeA) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks, =20 Jim Wilson Clinical Engineering=20 Providence Health System Portland, OR DISCLAIMER: This message is intended for the sole use of the addressee, and may = contain information that is privileged, confidential and exempt from = disclosure under applicable law. If you are not the 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 this message. --Boundary_(ID_liZyL5TJixL3O2Fov8VdeA) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable

During the course of our last PMI, a small leaf was = dropped, resulting in a slight bend in the slender portion of the leaf. We were = able to coax it back to normal and it functions perfectly. Has anyone had to = replace one or more of these?? I had understood that Varian wants you to replace = them as a set. Any experience out there? Thanks,

Jim Wilson

Clinical Engineering

Providence Health System

Portland, OR

We have a Portal Vision that is just = over a year old. It is showing NL in the lower right corner when = you press the enable bars. The book shows NL means "no = link" meaning the pendant is not receiving a signal. The = pendant will not go into any of the diagnostic modes, such as pendant = test or interlock mode. The portal vision arm will operate with = the emergency control switches on the left side of the gantry. = Has anybody seen this or have any suggestions? We only have = portal vision on one machine so I'm not able to check the pendant on = another machine.

Thanks

Ryan Lockhart
Covenant Medical Center
Waterloo, IA

319-272-8058

--Boundary_(ID_RmVwhnanHvkTndDX1THBKQ)-- From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1870" "Monday" "19" "July" "2004" "13:57:02" "-0600" "Massimo Giovannetti" "massimog@CancerBoard.ab.ca" nil "50" "Re: Portal vision pendant NL error" "^From:" nil nil "7" nil nil (number " " mark " Massimo Giovannet Jul 19 50/1870 " thread-indent "\"Re: Portal vision pendant NL error\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1400518DD714@hubbard.azu.nl>; Tue, 20 Jul 2004 00:05:35 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000053032462 ; Tue, 20 Jul 2004 00:05:30 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA04478; Tue, 20 Jul 2004 00:06:27 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma004453; Tue, 20 Jul 2004 00:06:15 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA20139 for linac-eng-list; Mon, 19 Jul 2004 14:57:17 -0500 (CDT) Received: from mailgw1.cancerboard.ab.ca (h64-42-209-86.gtconnect.net [64.42.209.86]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA20135 for ; Mon, 19 Jul 2004 14:57:15 -0500 (CDT) Message-id: <40FC278E.1050205@cancerboard.ab.ca> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=us-ascii Content-transfer-encoding: 7bit Precedence: bulk User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 (CK-ACBNet) X-Accept-Language: en-us, en References: X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Massimo Giovannetti Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" Cc: 'clinac listserve' Subject: Re: Portal vision pendant NL error Date: Mon, 19 Jul 2004 13:57:02 -0600 Hi Ryan, You first may want to look at the clock frequency of the pendant and the receiver to make sure they agree and within spec. Sometimes they tend to wander off. Using your scope measure between test point MP6 wrt MP2. Jumper J1 (J2 on the receiver) should be set to clock test which is 2-3. If you need to, adjust POT 1 for 104 microseconds. Return jumper J1 (or J2) to 1-2. Also, the communications path goes from the receiver to the Hand and Lat PCB in the Control Rack where the RS-232 gets converted to RS-485 and then over to the CPU and vise versa. If the clock was ok, I would remove the cover of the control rack and determine if you experience a heat related problem. This should get you started. I hope it helps. Massimo Giovannetti, C.Tech Tom Baker Cancer Centre Calgary, AB, Canada Lockhart, Ryan wrote: > We have a Portal Vision that is just over a year old. It is showing NL > in the lower right corner when you press the enable bars. The book > shows NL means "no link" meaning the pendant is not receiving a signal. > The pendant will not go into any of the diagnostic modes, such as > pendant test or interlock mode. The portal vision arm will operate with > the emergency control switches on the left side of the gantry. Has > anybody seen this or have any suggestions? We only have portal vision > on one machine so I'm not able to check the pendant on another machine. > > Thanks > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA > > 319-272-8058 > This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7289" "Monday" "19" "July" "2004" "15:42:49" "-0400" "Nelson, Steve" "nelson@radonc.musc.edu" nil "231" "RE: Portal vision pendant NL error" "^From:" nil nil "7" nil nil (number " " mark " Nelson, Steve Jul 19 231/7289 " thread-indent "\"RE: Portal vision pendant NL error\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1400521DE414@hubbard.azu.nl>; Tue, 20 Jul 2004 00:06:08 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000060432473 ; Tue, 20 Jul 2004 00:06:04 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA04531; Tue, 20 Jul 2004 00:07:02 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma004504; Tue, 20 Jul 2004 00:06:35 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA20081 for linac-eng-list; Mon, 19 Jul 2004 14:52:20 -0500 (CDT) Received: from mopsy2.ccit.musc.edu (mopsy2.ccit.musc.edu [128.23.34.56]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA20077 for ; Mon, 19 Jul 2004 14:52:18 -0500 (CDT) Received: from revere3.musc.edu (revere3.musc.edu [128.23.203.9]) by mopsy2.ccit.musc.edu (8.12.10/8.12.10) with ESMTP id i6JJgnbM028127 for ; Mon, 19 Jul 2004 15:42:50 -0400 Received: from XCHANGE2k.radonc2k.musc.edu (xchange2k.RadOnc.musc.edu [128.23.55.250]) by revere3.musc.edu (8.12.9/8.12.9) with ESMTP id i6JJgnWj000666 for ; Mon, 19 Jul 2004 15:42:49 -0400 (EDT) Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_FF20tv6mdEf5kir0+F2ogQ)" Precedence: bulk content-class: urn:content-classes:message X-MIMEOLE: Produced By Microsoft Exchange V6.0.6487.1 Thread-Topic: Portal vision pendant NL error Thread-Index: AcRtx8lB8l1Ppm4AQwmHJ9qAZeYhfQAACA1A X-MUSC-MailScanner-Information: Please contact postmstr@musc.edu for more information X-MUSC-MailScanner: Found to be clean X-MUSC-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0.284, required 4, HTML_50_60 0.18, HTML_FONTCOLOR_UNKNOWN 0.10, HTML_MESSAGE 0.00) X-MailScanner-From: nelson@radonc.musc.edu X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson, Steve" Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" , Linac Engineers Subject: RE: Portal vision pendant NL error Date: Mon, 19 Jul 2004 15:42:49 -0400 This is a multi-part message in MIME format. --Boundary_(ID_FF20tv6mdEf5kir0+F2ogQ) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Ryan,=20 You need a spare. We also have only one linac with PV. When it came I had them order a spare pendant for three reasons: 1. If the battery craps out, you have a spare. 2. If the drop it and break some connections, you can troubleshoot on the bench without interruption of use. 3. If something goes wrong and neither pendant works, you know to troubleshoot the linac side of communications. =20 -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Lockhart, Ryan Sent: Monday, July 19, 2004 3:14 PM To: 'clinac listserve' Subject: Portal vision pendant NL error =20 We have a Portal Vision that is just over a year old. It is showing NL in the lower right corner when you press the enable bars. The book shows NL means "no link" meaning the pendant is not receiving a signal. The pendant will not go into any of the diagnostic modes, such as pendant test or interlock mode. The portal vision arm will operate with the emergency control switches on the left side of the gantry. Has anybody seen this or have any suggestions? We only have portal vision on one machine so I'm not able to check the pendant on another machine. Thanks=20 Ryan Lockhart=20 Covenant Medical Center=20 Waterloo, IA=20 319-272-8058=20 --Boundary_(ID_FF20tv6mdEf5kir0+F2ogQ) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable Portal vision pendant NL error

Ryan,

= You need a spare. We also have only one linac with PV. When it came I had = them order a spare pendant for three reasons:

1. If the battery = craps out, you have a spare.

2. If the drop it = and break some connections, you can troubleshoot on the bench without interruption = of use.

3. If something = goes wrong and neither pendant works, you know to troubleshoot the linac side of communications.

-----Original = Message-----
From: owner-linac-eng@plato.aristotle.net = [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Lockhart, = Ryan
Sent: Monday, July 19, = 2004 3:14 PM
To: 'clinac = listserve'
Subject: Portal vision = pendant NL error

We have a Portal Vision that is just over a = year old. It is showing NL in the lower right corner when you press the = enable bars. The book shows NL means "no link" meaning the = pendant is not receiving a signal. The pendant will not go into any of the diagnostic modes, such as pendant test or interlock mode. The = portal vision arm will operate with the emergency control switches on the left = side of the gantry. Has anybody seen this or have any suggestions? = We only have portal vision on one machine so I'm not able to check the pendant = on another machine.

Thanks

Ryan Lockhart
Covenant Medical Center
Waterloo, IA

319-272-8058

=00 --Boundary_(ID_FF20tv6mdEf5kir0+F2ogQ)-- From VM Wed Aug 4 19:13:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7745" "Monday" "19" "July" "2004" "16:12:30" "-0400" "Nelson, Steve" "nelson@radonc.musc.edu" nil "237" "Millenium MLC power supply" "^From:" nil nil "7" nil nil (number " " mark " Nelson, Steve Jul 19 237/7745 " thread-indent "\"Millenium MLC power supply\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14007A0DY2WJ@hubbard.azu.nl>; Tue, 20 Jul 2004 00:18:04 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000180132652 ; Tue, 20 Jul 2004 00:18:01 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA05713; Tue, 20 Jul 2004 00:18:59 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa05710; Tue, 20 Jul 2004 00:18:44 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA20958 for linac-eng-list; Mon, 19 Jul 2004 15:20:34 -0500 (CDT) Received: from mopsy2.ccit.musc.edu (mopsy2.ccit.musc.edu [128.23.34.56]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA20948 for ; Mon, 19 Jul 2004 15:20:33 -0500 (CDT) Received: from revere3.musc.edu (revere3.musc.edu [128.23.203.9]) by mopsy2.ccit.musc.edu (8.12.10/8.12.10) with ESMTP id i6JKCVbM024697 for ; Mon, 19 Jul 2004 16:12:31 -0400 Received: from XCHANGE2k.radonc2k.musc.edu (xchange2k.RadOnc.musc.edu [128.23.55.250]) by revere3.musc.edu (8.12.9/8.12.9) with ESMTP id i6JKCUWj005960 for ; Mon, 19 Jul 2004 16:12:30 -0400 (EDT) Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_ey6UA2JbazZ7BXLhUGJptQ)" Precedence: bulk content-class: urn:content-classes:message X-MIMEOLE: Produced By Microsoft Exchange V6.0.6487.1 Thread-Topic: Millenium MLC power supply Thread-Index: AcRtzLhW83cdotWMT0WJOMwx5r0jlg== X-MUSC-MailScanner-Information: Please contact postmstr@musc.edu for more information X-MUSC-MailScanner: Found to be clean X-MUSC-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0.475, required 4, HTML_40_50 0.47, HTML_MESSAGE 0.00) X-MailScanner-From: nelson@radonc.musc.edu X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Nelson, Steve" Sender: owner-linac-eng@plato.aristotle.net To: Linac Engineers Subject: Millenium MLC power supply Date: Mon, 19 Jul 2004 16:12:30 -0400 This is a multi-part message in MIME format. --Boundary_(ID_ey6UA2JbazZ7BXLhUGJptQ) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Hello group, I was called in last Monday AM as a line of thunderboomers had ripped through the lowcountry and left linacs in E/O condition. I have a dedicated power conditioner (from Varian) on my 2100 EX, and the breaker on this unit had tripped. (first time in 3 yrs.) The machine came up OK after resetting the breaker and normal bringing the machine up until about the third IMRT patient. There was a MLC fault which indicated a carriage problem. Hyperterminal had scrolled leaving no discernable information. Reinitialization took care of the problem for three or four patients. After some repeats a pattern started to show that field failure tended to be around the laterals. During one of the episodes, I was able to scroll back in hyperterminal to see a problem with switched motor power on carriage A. I checked all cables and found no shorts. I initialized and monitored the 15V motor power voltage at the power distribution board. I found about a 2 volt drop as the leaves went through secondary FB checks. Later I checked this on a newer MLC at another site and did not observe this magnitude of a drop. (slightly less than one volt.) The MLC PS was replaced with a spare and no more problems were seen. I read the specs. on the PS found in the data book, and found that it should deliver 225 W (300Wp). So I went out and bought a couple of 220W 1 ohm resistors and checked the 15V motor power at 113 W (2 ohms) and the ps dropped about a half a volt. When I drew 225 W (15 Amp) for about 2 sec., the output dropped to 11 volts and the fan=20 speed whined down.=20 I know that this is lengthy, but has anyone worked on these supplies and or know where to get schematics? Regards, Stephen =20 Stephen J. Nelson, MSEE Instructor Dept. of Radiation Oncology Medical University of S.C. 171 Ashley Ave. Charleston, S.C. 29425 843-792-3271 =20 --Boundary_(ID_ey6UA2JbazZ7BXLhUGJptQ) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello group,

= I was called in last Monday AM as a line of thunderboomers had ripped = through the lowcountry and left linacs in E/O condition. I have a dedicated power conditioner (from Varian) on my 2100 EX, and the breaker on this unit = had tripped. (first time in 3 yrs.) The machine came up OK after resetting = the breaker and normal bringing the machine up until about the third IMRT = patient. There was a MLC fault which indicated a carriage problem. Hyperterminal had = scrolled leaving no discernable information. Reinitialization took care of the = problem for three or four patients. After some repeats a pattern started to show = that field failure tended to be around the laterals. During one of the = episodes, I was able to scroll back in hyperterminal to see a problem with switched = motor power on carriage A. I checked all cables and found no shorts. I = initialized and monitored the 15V motor power voltage at the power distribution = board. I found about a 2 volt drop as the leaves went through secondary FB = checks. Later I checked this on a newer MLC at another site and did not observe this = magnitude of a drop. (slightly less than one volt.) The MLC PS was replaced with a = spare and no more problems were seen.

= I read the specs. on the PS found in the data book, and found that = it should deliver 225 W (300Wp). So I went out and bought a couple of 220W = 1 ohm resistors and checked the 15V motor power at 113 W (2 ohms) and the ps = dropped about a half a volt. When I drew 225 W (15 Amp) for about 2 sec., the = output dropped to 11 volts and the fan

speed whined down.

= I know that this is lengthy, but has anyone worked on these supplies and = or know where to get schematics?

Regards,

Stephen

Stephen J. Nelson, MSEE

Instructor

Dept. of Radiation Oncology

Medical University of S.C.

171 Ashley Ave.

Charleston, S.C. 29425

843-792-3271

=00 --Boundary_(ID_ey6UA2JbazZ7BXLhUGJptQ)-- From VM Wed Aug 4 19:13:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1793" "Monday" "19" "July" "2004" "15:15:32" "-0500" "Bisevac, Simeon" "SimeonB@uic.edu" nil "41" "RE: water flow switches" "^From:" nil nil "7" nil nil (number " " mark " Bisevac, Simeon Jul 19 41/1793 " thread-indent "\"RE: water flow switches\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14007PFEVPWJ@hubbard.azu.nl>; Tue, 20 Jul 2004 00:38:20 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000381200432 ; Tue, 20 Jul 2004 00:38:12 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA08264; Tue, 20 Jul 2004 00:39:10 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma008236; Tue, 20 Jul 2004 00:38:51 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA20833 for linac-eng-list; Mon, 19 Jul 2004 15:15:54 -0500 (CDT) Received: from smtpout-2.priv.cc.uic.edu (smtpout-2.cc.uic.edu [128.248.155.233]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id PAA20829 for ; Mon, 19 Jul 2004 15:15:52 -0500 (CDT) Received: (qmail 24026 invoked from network); Mon, 19 Jul 2004 15:15:52 -0500 Received: from uimcc53.hospital.uic.edu (HELO uimcc53.D2UICMED.uimcc.uic.edu) (128.248.114.93) by smtpout-2.cc.uic.edu with SMTP; Mon, 19 Jul 2004 15:15:52 -0500 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 19 Jul 2004 15:15:33 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) 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 From: "Bisevac, Simeon" Sender: owner-linac-eng@plato.aristotle.net To: per.zetterberg@orebroll.se, linac-eng@plato.aristotle.net Subject: RE: water flow switches Date: Mon, 19 Jul 2004 15:15:32 -0500 I too have the gray maintenance manual from the Varian class. Chapter 10 covers linac support systems. Section 3 covers the cooling water system and shows normal water pump pressure to be 50 to 80 PSIG. Our linacs, 2100 EX - sn 1398 and 1399, are operating at 70 to 75 PSIG with the new Varian water inhibitor kit installed. Simeon Bisevac -----Original Message----- From: per.zetterberg@orebroll.se [mailto:per.zetterberg@orebroll.se] Sent: Monday, July 19, 2004 8:17 AM To: linac-eng@plato.aristotle.net Subject: water flow switches Hello, (CL2100 C/D, make 1992) The maintenance course manual (gray) says that the water pump pressure should read between 40-50 psi, but the pressure of our machine reads 70 psi. Could this be bad, indicating that we have partly restricted water tubes and therefore a rise in pressure? The switches are working, only giving FLOW interlocks occasionally and then, from time to time, we clean the switches. Could anyone (please!) give their view of my problem concerning the water pump pressure, thanks! Has any of you built a test rig for the flow switches to confirm the flow level giving FLOW interlock? Regards, Per, Sweden. ****************************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 312.413.4947. From VM Wed Aug 4 19:13:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1794" "Monday" "19" "July" "2004" "16:01:30" "-0500" "Bisevac, Simeon" "SimeonB@uic.edu" nil "41" "RE: water flow switches" "^From:" nil nil "7" nil nil (number " " mark " Bisevac, Simeon Jul 19 41/1794 " thread-indent "\"RE: water flow switches\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14008MCF77HQ@hubbard.azu.nl>; Tue, 20 Jul 2004 00:45:09 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000450700571 ; Tue, 20 Jul 2004 00:45:07 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA08978; Tue, 20 Jul 2004 00:46:04 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa08941; Tue, 20 Jul 2004 00:45:32 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA21944 for linac-eng-list; Mon, 19 Jul 2004 16:01:52 -0500 (CDT) Received: from smtpout-2.priv.cc.uic.edu (smtpout-2.cc.uic.edu [128.248.155.233]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA21940 for ; Mon, 19 Jul 2004 16:01:50 -0500 (CDT) Received: (qmail 10287 invoked from network); Mon, 19 Jul 2004 16:01:50 -0500 Received: from uimcc53.hospital.uic.edu (HELO uimcc53.D2UICMED.uimcc.uic.edu) (128.248.114.93) by smtpout-2.cc.uic.edu with SMTP; Mon, 19 Jul 2004 16:01:50 -0500 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 19 Jul 2004 16:01:31 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) 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 From: "Bisevac, Simeon" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: water flow switches Date: Mon, 19 Jul 2004 16:01:30 -0500 I too have the gray maintenance manual from the Varian class. Chapter 10 covers linac support systems. Section 3 covers the cooling water system and shows normal water pump pressure to be 50 to 80 PSIG. Our linacs, 2100 EX - sn 1398 and 1399, are operating at 70 to 75 PSIG with the new Varian water inhibitor kit installed. Simeon Bisevac -----Original Message----- From: per.zetterberg@orebroll.se [mailto:per.zetterberg@orebroll.se] Sent: Monday, July 19, 2004 8:17 AM To: linac-eng@plato.aristotle.net Subject: water flow switches Hello, (CL2100 C/D, make 1992) The maintenance course manual (gray) says that the water pump pressure should read between 40-50 psi, but the pressure of our machine reads 70 psi. Could this be bad, indicating that we have partly restricted water tubes and therefore a rise in pressure? The switches are working, only giving FLOW interlocks occasionally and then, from time to time, we clean the switches. Could anyone (please!) give their view of my problem concerning the water pump pressure, thanks! Has any of you built a test rig for the flow switches to confirm the flow level giving FLOW interlock? Regards, Per, Sweden. ****************************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 312.413.4947. From VM Wed Aug 4 19:13:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["9030" "Monday" "19" "July" "2004" "16:07:12" "-0500" "Bisevac, Simeon" "SimeonB@uic.edu" nil "194" "RE: Varian Millenium MLC" "^From:" nil nil "7" nil nil (number " " mark " Bisevac, Simeon Jul 19 194/9030 " thread-indent "\"RE: Varian Millenium MLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14008PIFJNHQ@hubbard.azu.nl>; Tue, 20 Jul 2004 00:52:44 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072000523800683 ; Tue, 20 Jul 2004 00:52:38 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA09756; Tue, 20 Jul 2004 00:53:36 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma009721; Tue, 20 Jul 2004 00:53:22 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA23524 for linac-eng-list; Mon, 19 Jul 2004 16:07:34 -0500 (CDT) Received: from smtpout-2.priv.cc.uic.edu (smtpout-2.cc.uic.edu [128.248.155.233]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA23520 for ; Mon, 19 Jul 2004 16:07:32 -0500 (CDT) Received: (qmail 11774 invoked from network); Mon, 19 Jul 2004 16:07:32 -0500 Received: from uimcc53.hospital.uic.edu (HELO uimcc53.D2UICMED.uimcc.uic.edu) (128.248.114.93) by smtpout-2.cc.uic.edu with SMTP; Mon, 19 Jul 2004 16:07:32 -0500 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Mon, 19 Jul 2004 16:07:13 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_mJgUriesGWWBzWRPU2hfqQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Date: Mon, 19 Jul 2004 16:07:12 -0500 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_mJgUriesGWWBzWRPU2hfqQ) Content-type: text/plain; CHARSET=US-ASCII Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage. Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine. I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the carriage. But Varian insists on replacing the entire bank. Simeon Bisevac UIC Med.Cntr. -----Original Message----- From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org] Sent: Monday, July 19, 2004 2:08 PM To: linac-eng@plato.aristotle.net Subject: Varian Millenium MLC During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks, Jim Wilson Clinical Engineering Providence Health System Portland, OR DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. ****************************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 312.413.4947. --Boundary_(ID_mJgUriesGWWBzWRPU2hfqQ) Content-type: text/html Message

Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage.

Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to

bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine.

I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the

carriage. But Varian insists on replacing the entire bank.

Simeon Bisevac

UIC Med.Cntr.

-----Original Message-----
From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org]
Sent: Monday, July 19, 2004 2:08 PM
To: linac-eng@plato.aristotle.net
Subject: Varian Millenium MLC

During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks,

Jim Wilson

Clinical Engineering

Providence Health System

Portland, OR

DISCLAIMER:
This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message.

****************************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 312.413.4947.

--Boundary_(ID_mJgUriesGWWBzWRPU2hfqQ)-- From VM Wed Aug 4 19:13:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1658" "Tuesday" "20" "July" "2004" "08:49:32" "+0930" "Andrew Frolov" "Afrolov@mail.rah.sa.gov.au" nil "49" "Re: Portal vision pendant NL error" "^From:" nil nil "7" nil nil (number " " mark " Andrew Frolov Jul 20 49/1658 " thread-indent "\"Re: Portal vision pendant NL error\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I14000JTNKA3B@hubbard.azu.nl>; Tue, 20 Jul 2004 03:45:49 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072003454702754 ; Tue, 20 Jul 2004 03:45:47 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id DAA23646; Tue, 20 Jul 2004 03:46:45 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma023637; Tue, 20 Jul 2004 03:46:41 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA27906 for linac-eng-list; Mon, 19 Jul 2004 18:20:55 -0500 (CDT) 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 SAA27902 for ; Mon, 19 Jul 2004 18:20:52 -0500 (CDT) Received: from adl0133.systems.sa.gov.au (localhost [127.0.0.1]) by adl0133.systems.sa.gov.au OUTGOING (8.12.10/8.12.7) with ESMTP id i6JNKGoH013855; Tue, 20 Jul 2004 08:50:16 +0930 (CST) Received: from rahsun153.rah.sa.gov.au (mailhub.rah.sa.gov.au [10.19.241.188]) by adl0133.systems.sa.gov.au INCOMING (8.12.10/8.12.7) with ESMTP id i6JNKGSH013849; Tue, 20 Jul 2004 08:50:16 +0930 (CST) Received: from mail.rah.sa.gov.au (MERCURY-2 [10.19.241.91]) by rahsun153.rah.sa.gov.au (8.12.9/8.12.8) with ESMTP id i6JNKEnK022090; Tue, 20 Jul 2004 08:50:16 +0930 (CST) Received: from Spooler by mail.rah.sa.gov.au (Mercury/32 v4.01a) ID MO0002D9; Tue, 20 Jul 2004 08:50:16 +0930 Received: from spooler by mail.rah.sa.gov.au (Mercury/32 v4.01a); Tue, 20 Jul 2004 08:49:57 +0930 In-reply-to: Message-id: <200407192320.i6JNKEnK022090@rahsun153.rah.sa.gov.au> Organization: Royal Adelaide Hospital MIME-version: 1.0 X-Mailer: Pegasus Mail for Win32 (v3.12a) 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 From: Andrew Frolov Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" , 'clinac listserve' Subject: Re: Portal vision pendant NL error Date: Tue, 20 Jul 2004 08:49:32 +0930 As I recall we experienced a similar problem with the NL interlock and the pendant not responding. While having a spare one is a good idea that gives you more time to solve a problem, this particular fault was cured by simple resetting power to the pendant. Open it, disconnect the battery, connect it back. Good luck. P.S. Since there is a lot of recent activity on the mailing list and none on the linac forum, I wonder why. Do we really need it or not. All opinions I heard so far were in support of the forum. Please visit soon and make it working. http://www.primmy.com/linac_phorum/index.php Regards, Andrew Frolov From: "Lockhart, Ryan" To: "'clinac listserve'" Subject: Portal vision pendant NL error Date sent: Mon, 19 Jul 2004 14:14:27 -0500 > We have a Portal Vision that is just over a year old. It is showing NL in > the lower right corner when you press the enable bars. The book shows NL > means "no link" meaning the pendant is not receiving a signal. The pendant > will not go into any of the diagnostic modes, such as pendant test or > interlock mode. The portal vision arm will operate with the emergency > control switches on the left side of the gantry. Has anybody seen this or > have any suggestions? We only have portal vision on one machine so I'm not > able to check the pendant on another machine. > > Thanks > > Ryan Lockhart > Covenant Medical Center > Waterloo, IA > > 319-272-8058 > Andrew Frolov Manager, RE Royal Adelaide Hospital Tel: 61 8 8222 5674 Fax: 61 8 8222 5937 email afrolov@mail.rah.sa.gov.au From VM Wed Aug 4 19:13:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["10652" "Tuesday" "20" "July" "2004" "00:14:33" "-0500" "ROD WILLIAMS" "rod@mlcpower.com" nil "298" "Re: Millenium MLC power supply" "^From:" nil nil "7" nil nil (number " " mark " ROD WILLIAMS Jul 20 298/10652 " thread-indent "\"Re: Millenium MLC power supply\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I15001NP2WO4E@hubbard.azu.nl>; Tue, 20 Jul 2004 09:17:15 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072009171107434 ; Tue, 20 Jul 2004 09:17:11 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id JAA22005; Tue, 20 Jul 2004 09:18:09 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma021941; Tue, 20 Jul 2004 09:17:57 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id AAA07238 for linac-eng-list; Tue, 20 Jul 2004 00:14:40 -0500 (CDT) Received: from omr5.netsolmail.com (omr5.netsolmail.com [216.168.230.142]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id AAA07231 for ; Tue, 20 Jul 2004 00:14:37 -0500 (CDT) Received: from ms2.netsolmail.com (IDENT:mirapoint@[216.168.230.175]) by omr5.netsolmail.com (8.12.10/8.12.10) with ESMTP id i6K596uq025151; Tue, 20 Jul 2004 01:09:07 -0400 (EDT) Received: from ms2.netsolmail.com (localhost.netsolmail.com [127.0.0.1]) by ms2.netsolmail.com (Mirapoint Messaging Server MOS 3.2.2-GA) with ESMTP id CAU69883; Tue, 20 Jul 2004 01:14:33 -0400 (EDT) Received: from 24.167.225.13 by ms2.netsolmail.com (Mirapoint Messaging Server MOS 3.2.2-GA) with HTTP/1.1; Tue, 20 Jul 2004 00:14:33 -0500 Message-id: <200407200514.CAU69883@ms2.netsolmail.com> MIME-version: 1.0 X-Mailer: Webmail Mirapoint Direct 3.2.2-GA Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_AgUTdMIiIEasw/jHxYcdpw)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: ROD WILLIAMS Sender: owner-linac-eng@plato.aristotle.net To: "Nelson, Steve" Cc: Linac Engineers Subject: Re: Millenium MLC power supply Date: Tue, 20 Jul 2004 00:14:33 -0500 --Boundary_(ID_AgUTdMIiIEasw/jHxYcdpw) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: 7bit Do you have the ETA type or the Mission type.??? The Mission uses two bricks for the 15v motorpower. The ETA type uses One 300 watt. Rod Williams --Boundary_(ID_AgUTdMIiIEasw/jHxYcdpw) Content-type: MESSAGE/RFC822; name="Message 9" Content-transfer-encoding: 8BIT Return-path: Received: from vmmr5.netsolmail.com (vmmr5.netsolmail.com [10.166.0.243]) by ms2.netsolmail.com (Mirapoint Messaging Server MOS 3.2.2-GA) with ESMTP id CAT52157; Mon, 19 Jul 2004 18:22:07 -0400 (EDT) Received: from imr5.netsolmail.com (vmbmnat.netsolmail.com [216.168.230.170]) by vmmr5.netsolmail.com (Mirapoint Messaging Server MOS 3.2.2-GA) with ESMTP id AJU05679; Mon, 19 Jul 2004 18:22:06 -0400 (EDT) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by imr5.netsolmail.com (8.12.10/8.12.10) with ESMTP id i6JMM4xo019388 for ; Mon, 19 Jul 2004 18:22:04 -0400 (EDT) Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA20958 for linac-eng-list; Mon, 19 Jul 2004 15:20:34 -0500 (CDT) Received: from mopsy2.ccit.musc.edu (mopsy2.ccit.musc.edu [128.23.34.56]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA20948 for ; Mon, 19 Jul 2004 15:20:33 -0500 (CDT) Received: from revere3.musc.edu (revere3.musc.edu [128.23.203.9]) by mopsy2.ccit.musc.edu (8.12.10/8.12.10) with ESMTP id i6JKCVbM024697 for ; Mon, 19 Jul 2004 16:12:31 -0400 Received: from XCHANGE2k.radonc2k.musc.edu (xchange2k.RadOnc.musc.edu [128.23.55.250]) by revere3.musc.edu (8.12.9/8.12.9) with ESMTP id i6JKCUWj005960 for ; Mon, 19 Jul 2004 16:12:30 -0400 (EDT) Date: Mon, 19 Jul 2004 16:12:30 -0400 From: "Nelson, Steve" Subject: Millenium MLC power supply Sender: owner-linac-eng@plato.aristotle.net To: "Linac Engineers" Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_aDKaM2dJ2axIVwuoA1nDYQ)" Precedence: bulk content-class: urn:content-classes:message X-MIMEOLE: Produced By Microsoft Exchange V6.0.6487.1 Thread-Topic: Millenium MLC power supply Thread-Index: AcRtzLhW83cdotWMT0WJOMwx5r0jlg== X-MUSC-MailScanner-Information: Please contact postmstr@musc.edu for more information X-MUSC-MailScanner: Found to be clean X-MUSC-MailScanner-SpamCheck: not spam (whitelisted), SpamAssassin (score=0.475, required 4, HTML_40_50 0.47, HTML_MESSAGE 0.00) X-MailScanner-From: nelson@radonc.musc.edu 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_aDKaM2dJ2axIVwuoA1nDYQ) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Hello group, I was called in last Monday AM as a line of thunderboomers had ripped through the lowcountry and left linacs in E/O condition. I have a dedicated power conditioner (from Varian) on my 2100 EX, and the breaker on this unit had tripped. (first time in 3 yrs.) The machine came up OK after resetting the breaker and normal bringing the machine up until about the third IMRT patient. There was a MLC fault which indicated a carriage problem. Hyperterminal had scrolled leaving no discernable information. Reinitialization took care of the problem for three or four patients. After some repeats a pattern started to show that field failure tended to be around the laterals. During one of the episodes, I was able to scroll back in hyperterminal to see a problem with switched motor power on carriage A. I checked all cables and found no shorts. I initialized and monitored the 15V motor power voltage at the power distribution board. I found about a 2 volt drop as the leaves went through secondary FB checks. Later I checked this on a newer MLC at another site and did not observe this magnitude of a drop. (slightly less than one volt.) The MLC PS was replaced with a spare and no more problems were seen. I read the specs. on the PS found in the data book, and found that it should deliver 225 W (300Wp). So I went out and bought a couple of 220W 1 ohm resistors and checked the 15V motor power at 113 W (2 ohms) and the ps dropped about a half a volt. When I drew 225 W (15 Amp) for about 2 sec., the output dropped to 11 volts and the fan=20 speed whined down.=20 I know that this is lengthy, but has anyone worked on these supplies and or know where to get schematics? Regards, Stephen =20 Stephen J. Nelson, MSEE Instructor Dept. of Radiation Oncology Medical University of S.C. 171 Ashley Ave. Charleston, S.C. 29425 843-792-3271 =20 --Boundary_(ID_aDKaM2dJ2axIVwuoA1nDYQ) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable

Hello group,

speed whined down.

= I know that this is lengthy, but has anyone worked on these supplies and = or know where to get schematics?

Regards,

Stephen

Stephen J. Nelson, MSEE

Instructor

Dept. of Radiation Oncology

Medical University of S.C.

171 Ashley Ave.

Charleston, S.C. 29425

843-792-3271

=00 --Boundary_(ID_aDKaM2dJ2axIVwuoA1nDYQ)-- --Boundary_(ID_AgUTdMIiIEasw/jHxYcdpw)-- From VM Wed Aug 4 19:13:36 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["11215" "Tuesday" "20" "July" "2004" "09:36:56" "-0500" "Williams, Rod" "rod.williams@phci.org" nil "246" "RE: Varian Millenium MLC" "^From:" nil nil "7" nil nil (number " " mark " Williams, Rod Jul 20 246/11215 " thread-indent "\"RE: Varian Millenium MLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I15004YJTD3BB@hubbard.azu.nl>; Tue, 20 Jul 2004 18:48:42 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072018483824464 ; Tue, 20 Jul 2004 18:48:38 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA25723; Tue, 20 Jul 2004 18:49:36 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma025674; Tue, 20 Jul 2004 18:49:13 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA13045 for linac-eng-list; Tue, 20 Jul 2004 09:37:42 -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 JAA13041 for ; Tue, 20 Jul 2004 09:37:40 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id i6KEb83b021131 for ; Tue, 20 Jul 2004 09:37:08 -0500 (CDT) Received: from zixvpm00.phci.org (zixvpm01.phci.org [172.20.3.21]) by intfw2.phci.org with ESMTP id i6KEb8YR021128 for ; Tue, 20 Jul 2004 09:37:08 -0500 (CDT) Received: from zixvpm01.phci.org (ZixVPM [127.0.0.1]) by Outbound.phci.org (Proprietary) with ESMTP id C4B1B1A408D for ; Tue, 20 Jul 2004 09:37:07 -0500 (CDT) Received: from smtpscan.phci.org (smtpscan.phci.org [172.20.3.10]) by zixvpm00.phci.org (Proprietary) with SMTP id 657741A0052; Tue, 20 Jul 2004 09:37:05 -0500 (CDT) Received: from wmhmail1.phci.org ([IP=10.1.1.28]) by eSafe SMTP Relay 1090276518; Tue Jul 20 09:56:02 2004 Received: by wmhmail1.phci.org with Internet Mail Service (5.5.2657.72) id <36CY4ZNK>; Tue, 20 Jul 2004 09:37:04 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_ZIYMZ9cmsqz+COkFP0bJ1A)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" Sender: owner-linac-eng@plato.aristotle.net To: "'Bisevac, Simeon'" , linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Date: Tue, 20 Jul 2004 09:36:56 -0500 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_ZIYMZ9cmsqz+COkFP0bJ1A) Content-type: text/plain; charset=iso-8859-1 Did you get a price from Varian for the whole bank.??? -----Original Message----- From: Bisevac, Simeon [mailto:SimeonB@uic.edu] Sent: Monday, July 19, 2004 4:07 PM To: linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage. Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine. I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the carriage. But Varian insists on replacing the entire bank. Simeon Bisevac UIC Med.Cntr. -----Original Message----- From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org] Sent: Monday, July 19, 2004 2:08 PM To: linac-eng@plato.aristotle.net Subject: Varian Millenium MLC During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks, Jim Wilson Clinical Engineering Providence Health System Portland, OR DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. ****************************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 312.413.4947. This information is confidential and intended solely for the use of the individual or entity to whom it is addressed. If you have received this email in error please notify the sender or our Customer Support Center at (262) 928-2777. We have scanned this email and its attachments for malicious content. However, the recipient should check this email and any attachments for the presence of viruses. ProHealth Care accepts no liability for any damage caused by any virus transmitted by this email. --Boundary_(ID_ZIYMZ9cmsqz+COkFP0bJ1A) Content-type: text/html; charset=iso-8859-1 Message

Did you get a price from Varian for the whole bank.???

-----Original Message-----
From: Bisevac, Simeon [mailto:SimeonB@uic.edu]
Sent: Monday, July 19, 2004 4:07 PM
To: linac-eng@plato.aristotle.net
Subject: RE: Varian Millenium MLC

Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage.

Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to

bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine.

I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the

carriage. But Varian insists on replacing the entire bank.

Simeon Bisevac

UIC Med.Cntr.

-----Original Message-----
From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org]
Sent: Monday, July 19, 2004 2:08 PM
To: linac-eng@plato.aristotle.net
Subject: Varian Millenium MLC

During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks,

Jim Wilson

Clinical Engineering

Providence Health System

Portland, OR

DISCLAIMER:
This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message.

****************************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 312.413.4947.

This information is confidential and intended solely for the use of the individual or entity to whom it is addressed.

If you have received this email in error please notify the sender or our Customer Support Center at (262) 928-2777.

We have scanned this email and its attachments for malicious content.

However, the recipient should check this email and any attachments for the presence of viruses.

ProHealth Care accepts no liability for any damage caused by any virus transmitted by this email.

--Boundary_(ID_ZIYMZ9cmsqz+COkFP0bJ1A)-- From VM Wed Aug 4 19:13:36 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["13420" "Tuesday" "20" "July" "2004" "09:40:48" "-0500" "Bisevac, Simeon" "SimeonB@uic.edu" nil "281" "RE: Varian Millenium MLC" "^From:" nil nil "7" nil nil (number " " mark " Bisevac, Simeon Jul 20 281/13420 " thread-indent "\"RE: Varian Millenium MLC\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I15004ZLTI0BB@hubbard.azu.nl>; Tue, 20 Jul 2004 18:51:39 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072018513824515 ; Tue, 20 Jul 2004 18:51:38 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA26065; Tue, 20 Jul 2004 18:52:36 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma026036; Tue, 20 Jul 2004 18:52:23 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA13073 for linac-eng-list; Tue, 20 Jul 2004 09:41:10 -0500 (CDT) Received: from smtpout-2.priv.cc.uic.edu (smtpout-2.cc.uic.edu [128.248.155.233]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA13069 for ; Tue, 20 Jul 2004 09:41:09 -0500 (CDT) Received: (qmail 25118 invoked from network); Tue, 20 Jul 2004 09:41:08 -0500 Received: from uimcc53.hospital.uic.edu (HELO uimcc53.D2UICMED.uimcc.uic.edu) (128.248.114.93) by smtpout-2.cc.uic.edu with SMTP; Tue, 20 Jul 2004 09:41:08 -0500 Received: by uimcc53.hospital.uic.edu with Internet Mail Service (5.5.2653.19) id ; Tue, 20 Jul 2004 09:40:49 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_Yf9MZQjGqAWshPYlNQfT5A)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Bisevac, Simeon" Sender: owner-linac-eng@plato.aristotle.net To: "Williams, Rod" , "Bisevac, Simeon" , linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Date: Tue, 20 Jul 2004 09:40:48 -0500 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_Yf9MZQjGqAWshPYlNQfT5A) Content-type: text/plain; CHARSET=US-ASCII $ 100,000 . -----Original Message----- From: Williams, Rod [mailto:rod.williams@phci.org] Sent: Tuesday, July 20, 2004 9:37 AM To: 'Bisevac, Simeon'; linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Did you get a price from Varian for the whole bank.??? -----Original Message----- From: Bisevac, Simeon [mailto:SimeonB@uic.edu] Sent: Monday, July 19, 2004 4:07 PM To: linac-eng@plato.aristotle.net Subject: RE: Varian Millenium MLC Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage. Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine. I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the carriage. But Varian insists on replacing the entire bank. Simeon Bisevac UIC Med.Cntr. -----Original Message----- From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org] Sent: Monday, July 19, 2004 2:08 PM To: linac-eng@plato.aristotle.net Subject: Varian Millenium MLC During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks, Jim Wilson Clinical Engineering Providence Health System Portland, OR DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. ****************************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 312.413.4947. This information is confidential and intended solely for the use of the individual or entity to whom it is addressed. If you have received this email in error please notify the sender or our Customer Support Center at (262) 928-2777. We have scanned this email and its attachments for malicious content. However, the recipient should check this email and any attachments for the presence of viruses. ProHealth Care accepts no liability for any damage caused by any virus transmitted by this email. ****************************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 312.413.4947. --Boundary_(ID_Yf9MZQjGqAWshPYlNQfT5A) Content-type: text/html Message

$ 100,000 .

-----Original Message-----
From: Williams, Rod [mailto:rod.williams@phci.org]
Sent: Tuesday, July 20, 2004 9:37 AM
To: 'Bisevac, Simeon'; linac-eng@plato.aristotle.net
Subject: RE: Varian Millenium MLC

Did you get a price from Varian for the whole bank.???

-----Original Message-----
From: Bisevac, Simeon [mailto:SimeonB@uic.edu]
Sent: Monday, July 19, 2004 4:07 PM
To: linac-eng@plato.aristotle.net
Subject: RE: Varian Millenium MLC

Had a similar problem. Bent the slender portion of a small leaf as I was pulling it out of the carriage.

Did not pull it out exactly straight. BFMI ! ( Brutt force massive ignorance). It doesn't take much to

bend it. Had to reverse the process in order to reinstall the leaf. PWM test showed all to be fine.

I was able to find part numbers for individual leafs in case I could not work the bent leaf back into the

carriage. But Varian insists on replacing the entire bank.

Simeon Bisevac

UIC Med.Cntr.

-----Original Message-----
From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org]
Sent: Monday, July 19, 2004 2:08 PM
To: linac-eng@plato.aristotle.net
Subject: Varian Millenium MLC

During the course of our last PMI, a small leaf was dropped, resulting in a slight bend in the slender portion of the leaf. We were able to coax it back to normal and it functions perfectly. Has anyone had to replace one or more of these?? I had understood that Varian wants you to replace them as a set. Any experience out there? Thanks,

Jim Wilson

Clinical Engineering

Providence Health System

Portland, OR

DISCLAIMER:
This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message.

****************************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 312.413.4947.

This information is confidential and intended solely for the use of the individual or entity to whom it is addressed.

If you have received this email in error please notify the sender or our Customer Support Center at (262) 928-2777.

We have scanned this email and its attachments for malicious content.

However, the recipient should check this email and any attachments for the presence of viruses.

ProHealth Care accepts no liability for any damage caused by any virus transmitted by this email.

--Boundary_(ID_Yf9MZQjGqAWshPYlNQfT5A)-- From VM Wed Aug 4 19:13:36 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["532" "Wednesday" "21" "July" "2004" "08:55:05" "+0000" "Nick Mehew" "nickmehew@hotmail.com" nil "12" "sl75 thyratron" "^From:" nil nil "7" nil nil (number " " mark " Nick Mehew Jul 21 12/532 " thread-indent "\"sl75 thyratron\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1700GIN6OJLC@hubbard.azu.nl>; Wed, 21 Jul 2004 12:33:57 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072112335409285 ; Wed, 21 Jul 2004 12:33:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id MAA12241; Wed, 21 Jul 2004 12:34:53 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmac12200; Wed, 21 Jul 2004 12:34:21 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id DAA04785 for linac-eng-list; Wed, 21 Jul 2004 03:55:38 -0500 (CDT) Received: from hotmail.com (bay19-f20.bay19.hotmail.com [64.4.53.70]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id DAA04781 for ; Wed, 21 Jul 2004 03:55:36 -0500 (CDT) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Wed, 21 Jul 2004 01:55:05 -0700 Received: from 62.6.139.13 by by19fd.bay19.hotmail.msn.com with HTTP; Wed, 21 Jul 2004 08:55:05 +0000 (GMT) X-Sender: nickmehew@hotmail.com Message-id: MIME-version: 1.0 Content-type: text/plain; CHARSET=US-ASCII; format=flowed Precedence: bulk X-Originating-IP: [62.6.139.13] X-Originating-Email: [nickmehew@hotmail.com] X-OriginalArrivalTime: 21 Jul 2004 08:55:05.0882 (UTC) FILETIME=[6AFC4FA0:01C46F00] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Nick Mehew Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: sl75 thyratron Date: Wed, 21 Jul 2004 08:55:05 +0000 This is a common problem. The connector is underrated for the heater current and the contact surface breaks up and becomes high resistance. This creates heat and melts the solder in the thyratron legs. Replace the clip. -As a temporary repair its possible to take the clip apart and swap the burnt connections to a low current terminal such as the grid. Cheers Nick _________________________________________________________________ It's fast, it's easy and it's free. Get MSN Messenger today! http://www.msn.co.uk/messenger From VM Wed Aug 4 19:13:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["924" "Wednesday" "21" "July" "2004" "10:24:22" "+0100" "Colin McDonagh" "Colin.McDonagh@physics.cr.man.ac.uk" nil "30" "RE: Elekta SL75/5 Thyratron" "^From:" nil nil "7" nil nil (number " " mark " Colin McDonagh Jul 21 30/924 " thread-indent "\"RE: Elekta SL75/5 Thyratron\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I1700J8V7Q0DP@hubbard.azu.nl>; Wed, 21 Jul 2004 12:56:26 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072112562409846 ; Wed, 21 Jul 2004 12:56:24 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id MAA15162; Wed, 21 Jul 2004 12:57:22 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma015090; Wed, 21 Jul 2004 12:56:50 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id EAA05155 for linac-eng-list; Wed, 21 Jul 2004 04:24:25 -0500 (CDT) Received: from gannet.scg.man.ac.uk (gannet.scg.man.ac.uk [130.88.94.110]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id EAA05151 for ; Wed, 21 Jul 2004 04:24:24 -0500 (CDT) Received: from pierre.physics.cr.man.ac.uk ([130.88.240.23]) by gannet.scg.man.ac.uk with esmtp (Exim 4.20) id 1BnDKo-000BKL-Tm for linac-eng@plato.aristotle.net; Wed, 21 Jul 2004 10:24:22 +0100 Message-id: MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 8bit Precedence: bulk Content-Class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.0.6375.0 Thread-Topic: Elekta SL75/5 Thyratron thread-index: AcRtplnf0KH1URObSfaFu6w0ChebigBWR6kQ X-Scanner: exiscan for exim4 (http://duncanthrax.net/exiscan/) *1BnDKo-000BKL-Tm*FAfhXzHL5Ro* X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id EAA05152 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Colin McDonagh Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: Elekta SL75/5 Thyratron Date: Wed, 21 Jul 2004 10:24:22 +0100 -----Original Message----- From: Maddox, Buford J [mailto:JMADDOX@LROC.HARVARD.EDU] Sent: 19 July 2004 15:09 To: 'Randy Wick'; linac-eng@plato.aristotle.net Subject: RE: Elekta SL75/5 Thyratron >The SL75/5 that we had for many years never had this problem. It had one of the most >interesting problems I have ever seen, a drop of condensation in one of the AFC cavities >that moved around with gantry angle. Drove us crazy looking for the usual cable and >connection problems, until we finally opened up the cavity I've seen something similar on two occasions, each time it was not due to condensation but a small water leak. Either from a union on a manifold or more recently from a worn O ring in a flow switch. At certain gantry angles, small drops would fall and land on the AFC cavities. As you say very difficult to pin down. Regards Colin McDonagh Radiotherapy Engineer Christie Hospital Manchester UK From VM Wed Aug 4 19:13:37 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["8845" "Wednesday" "21" "July" "2004" "07:08:52" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "224" "RE: intermittent interlocks of SL15" "^From:" nil nil "7" nil nil (number " " mark " Maddox, Buford J Jul 21 224/8845 " thread-indent "\"RE: intermittent interlocks of SL15\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I170042GCTRWO@hubbard.azu.nl>; Wed, 21 Jul 2004 14:46:47 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004072114463813420 ; Wed, 21 Jul 2004 14:46:38 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id OAA02856; Wed, 21 Jul 2004 14:47:37 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002785; Wed, 21 Jul 2004 14:47:06 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA06614 for linac-eng-list; Wed, 21 Jul 2004 06:09:28 -0500 (CDT) Received: from PHSXCHICI3.partners.org (phsxchici3.mgh.harvard.edu [132.183.130.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA06610 for ; Wed, 21 Jul 2004 06:09:26 -0500 (CDT) Received: by phsxchici3.mgh.harvard.edu with Internet Mail Service (5.5.2657.72) id <36S91KAV>; Wed, 21 Jul 2004 07:09:40 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E1114664EB@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_oOTRWaAxkO53+rn6lyNJUQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: 'Timothy Forsgren' , faichichan , linac-eng@plato.aristotle.net Subject: RE: intermittent interlocks of SL15 Date: Wed, 21 Jul 2004 07:08:52 -0400 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_oOTRWaAxkO53+rn6lyNJUQ) Content-type: text/plain; charset=utf-8 Content-transfer-encoding: quoted-printable The thyratron reservoir of palladium stores the hydrogen gas for the = tube. Run it hot, more gas released, shorter life, triggering problems. Run it = low, not enough gas, arcing or anode overheating. Arcing occurrs because low = amount of gas allows electrons to travel further, more chance of knocking off = other electrons. Also less gas to stop total electron flow during recovery = phase. Heating is higher because voltage drop is higher at low gas pressure. = Used to adjust them between these end points by turning it down looking for = anode to get red (glass envelope) or start of arcing, then turning it up until = triggering was less reliable. Put it in the middle. Hope I remembered this right, 30 = years ago. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Timothy = Forsgren Sent: Monday, July 12, 2004 7:20 AM To: faichichan; linac-eng@plato.aristotle.net Subject: Re: intermittent interlocks of SL15 sounds like it's time to change the thyratron. =20 ----- Original Message ----- From: faichichan Sent: Monday, July 12, 2004 5:15 AM To: linac-eng@plato.aristotle.net Subject: intermittent interlocks of SL15 =20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =E8=BF=AA=E5=A3=AB=E5=B0=BC=E7=BE=8E=E8=AA=9E=E4=B8=96=E7=95=8C=E7=BE=8E= =E8=AA=9E=E5=AD=B8=E7=BF=923=E9=87=8D=E8=B3=9E - http://adimages.sina.com.hk/ALE_0704.html =E9=9D=A9=E6=96=B0=E7=89=88 = =E8=B2=A1=E7=B6=93=E9=A0=BB=E9=81=93=EF=BC=9A=E9=87=91=E3=80=81=E8=82=A1= =E3=80=81=E5=8C=AF =E5=90=8D=E5=AE=B6=E5=88=86=E6=9E=90 = =E5=85=A8=E6=96=B0=E7=9D=87=E6=B3=95 - http://finance.sina.com.hk/ =E6=89=93=E9=BA=BB=E5=B0=87=EF=BC=81 = =E9=8B=A4=E5=A4=A7D=EF=BC=81=E9=81=8A=E6=88=B2=E6=A9=9F=E9=AC=A5=E5=85=8D= =E8=B2=BB=E7=8E=A9=EF=BC=81 - http://game.sina.com.hk/ Hi everybody: =20 About the intermittent interlocks of Elekta SL15, it was already solved = by reducing the Reservoir heater voltage of Thyratron to 4.8V from 5.6V = that is required voltage stamped on chassis of Thyratron. The higher heater = voltage of Thyratron causes Magnetron generates higher intensity of noise, I = think. But reduction of heater voltage results in shrinking life of Thyratron. How = can I do to compromise this?=20 =20 fai =20 --Boundary_(ID_oOTRWaAxkO53+rn6lyNJUQ) Content-type: text/html; charset=utf-8 Content-transfer-encoding: quoted-printable

The = thyratron reservoir=20 of palladium stores the hydrogen gas for the tube. Run it = hot, more=20 gas released, shorter life, triggering problems. Run it low, not = enough=20 gas, arcing or anode overheating. Arcing occurrs because low = amount of gas=20 allows electrons to travel further, more chance of knocking off = other=20 electrons. Also less gas to stop total electron flow during = recovery=20 phase. Heating is higher because voltage drop is higher = at low=20 gas pressure. Used to adjust them between these end points by = turning it=20 down looking for anode to get red (glass envelope) or start of arcing, = then=20 turning it up until triggering was less reliable. Put it in the=20 middle. Hope I remembered this right, 30 years = ago.

Jerry

-----Original Message-----
From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of = Timothy=20 Forsgren
Sent: Monday, July 12, 2004 7:20 AM
To:=20 faichichan; linac-eng@plato.aristotle.net
Subject: Re: = intermittent=20 interlocks of SL15

sounds like it's time to change the thyratron.

----- Original Message -----
From:=20 faichichan

Sent: Monday, July 12, 2004 = 5:15=20 AM

To: = linac-eng@plato.aristotle.net

Subject: intermittent = interlocks of=20 SL15

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D
=E8=BF=AA=E5=A3=AB=E5=B0=BC=E7=BE=8E=E8=AA=9E=E4=B8=96=E7=95=8C= =E7=BE=8E=E8=AA=9E=E5=AD=B8=E7=BF=923=E9=87=8D=E8=B3=9E=20 = -
http://adimages.sina.com.hk/ALE_0704.html
=E9=9D=A9=E6=96=B0=E7=89= =88 = =E8=B2=A1=E7=B6=93=E9=A0=BB=E9=81=93=EF=BC=9A=E9=87=91=E3=80=81=E8=82=A1= =E3=80=81=E5=8C=AF =E5=90=8D=E5=AE=B6=E5=88=86=E6=9E=90 = =E5=85=A8=E6=96=B0=E7=9D=87=E6=B3=95=20 = -
http://finance.sina.com.hk/
=E6=89=93=E9=BA=BB=E5=B0=87=EF=BC=81= = =E9=8B=A4=E5=A4=A7D=EF=BC=81=E9=81=8A=E6=88=B2=E6=A9=9F=E9=AC=A5=E5=85=8D= =E8=B2=BB=E7=8E=A9=EF=BC=81=20 -
http://game.sina.com.hk/

Hi everybody:

About the intermittent = interlocks of=20 Elekta SL15, it was already solved by reducing the Reservoir heater = voltage=20 of Thyratron to 4.8V from 5.6V that is required voltage stamped on = chassis=20 of Thyratron. The higher heater voltage of Thyratron causes = Magnetron=20 generates higher intensity of noise, I think. But reduction of = heater=20 voltage results in shrinking life of Thyratron. How can I do to = compromise=20 this?

fai

Tom=20 Feuerstake

Kingston,=20 Ontario

-----Original Message-----
From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Robert Wood
Sent: October 4, 2004 1:12 PM
To:=20 linac-eng@plato.aristotle.net
Subject: Simulator with Fisher MX= 75=20 generator

We had a fault on our Simulator.

It was an 01 whick is a kvp selection error.
The unit was rebooted and it happened again. Re= booted=20 and we havn't seen it since. However I know that it will be=20 back.

Anyone had this fault. Intermittent faults make= me=20 nuts. I would like to do a fix before it goes down in the middle of= a=20 busy work day.

--Boundary_(ID_7NS+P01u+gI68HILTuWPVA)-- From VM Wed Oct 6 10:34:53 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1980" "Monday" "4" "October" "2004" "16:02:41" "-0700" "Eric J Earnst" "ejearnst@accuray.com" nil "53" "Job Posting - Field Service Engineer" "^From:" nil nil "10" nil nil (number " " mark " Eric J Earnst Oct 4 53/1980 " thread-indent "\"Job Posting - Field Service Engineer\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5300CPB6DEA2@hubbard.azu.nl>; Tue, 5 Oct 2004 02:51:15 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100502511325394 ; Tue, 05 Oct 2004 02:51:13 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id CAA15686; Tue, 05 Oct 2004 02:51:17 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma015678; Tue, 05 Oct 2004 02:51:15 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id SAA18076 for linac-eng-list; Mon, 04 Oct 2004 18:03:25 -0500 (CDT) Received: from cougar.accuray.com (mail.accuray.com [67.108.13.68]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA18072 for ; Mon, 04 Oct 2004 18:03:23 -0500 (CDT) Received: from mail.accuray.com ([10.20.20.62]) by cougar.accuray.com with Microsoft SMTPSVC(5.0.2195.6713); Mon, 04 Oct 2004 16:01:34 -0700 Message-id: MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-15; delsp=yes; format=flowed Content-transfer-encoding: quoted-printable Precedence: bulk User-Agent: Opera M2/7.52 (Win32, build 3834) X-OriginalArrivalTime: 04 Oct 2004 23:01:34.0842 (UTC) FILETIME=[188BD5A0:01C4AA66] X-MIME-Autoconverted: from 8bit to quoted-printable by plato.aristotle.net id SAA18076 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Eric J Earnst Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Job Posting - Field Service Engineer Date: Mon, 04 Oct 2004 16:02:41 -0700 Hi, I'm sending this for our VP of Cust Support, you can reply to me or to ou= r =20 HR address below: Accuray Inc. is an exciting medical device company whose primary objectiv= e =20 is the development of the CyberKnife=AE image-guided stereotactic =20 radiosurgery system. We are currently looking for Field Service Engineers= =20 to contribute to our growth and to become a part of the Field Service =20 Engineering group. Responsibilities: Field service engineers will have the responsibility for installation and= =20 on-going support and maintenance of Accuray's CyberKnife system at variou= s =20 customer sites throughout the United States and possibly abroad. The =20 position requires the candidates to communicate regularly with customers,= =20 office support personnel including training, quality assurance and =20 customer support. Requirements: =B7 10 years experience in Field Service. =B7 Strong troubleshooting skills. =B7 Knowledge of medical linear accelerator or microwave RF systems. =B7 Experience installing, configuring, and supporting Windows systems, a= nd =20 related application software. UNIX experience a must. =B7 Must be service oriented, results-driven individual that has delivere= d =20 exceptional customer satisfaction. =B7 Experience in field installation, and troubleshooting of electronic =20 equipment. =B7 Experience achieving objectives through cross-functional teams. =B7 A technical degree (ASEE) is required. Advanced degree preferred. =B7 Must have experience in diagnostic and X-ray and high voltage =20 circuitry. Knowledge of robotics will be helpful. =B7 Must be able to lift 50lbs and work on ladders. =B7 Must currently live within the Bay Area and be willing to travel =20 extensively. Accuray offers a competitive salary and benefits package. To apply, =20 please e-mail your resume to jobs@accuray.com or fax your resume to: =20 Attention: Human Resources, 408/716-4680. http://www.accuray.com/ Thanks, Eric From VM Wed Oct 6 10:34:53 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2034" "Tuesday" "5" "October" "2004" "03:44:24" "+0100" "kim yeung" "kimyeungwk@yahoo.co.uk" nil "48" "Re: What is the proper way for monitoring signals at monitor panel for Varian 600CD?" "^From:" nil nil "10" nil nil (number " " mark " kim yeung Oct 5 48/2034 " thread-indent "\"Re: What is the proper way for monitoring signals at monitor panel for Varian 600CD?\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I53004SUGFRJE@hubbard.azu.nl>; Tue, 5 Oct 2004 06:28:40 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100506283827723 ; Tue, 05 Oct 2004 06:28:38 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id GAA27355; Tue, 05 Oct 2004 06:28:42 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa27347; Tue, 05 Oct 2004 06:28:13 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id VAA20678 for linac-eng-list; Mon, 04 Oct 2004 21:44:57 -0500 (CDT) Received: from web25310.mail.ukl.yahoo.com (web25310.mail.ukl.yahoo.com [217.12.10.82]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id VAA20674 for ; Mon, 04 Oct 2004 21:44:55 -0500 (CDT) Received: from [210.0.231.246] by web25310.mail.ukl.yahoo.com via HTTP; Tue, 05 Oct 2004 03:44:24 +0100 (BST) Message-id: <20041005024424.18886.qmail@web25310.mail.ukl.yahoo.com> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_0OEtXVrFH8blxdLd88PRoA)" Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: kim yeung Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng Subject: Re: What is the proper way for monitoring signals at monitor panel for Varian 600CD? Date: Tue, 05 Oct 2004 03:44:24 +0100 (BST) --Boundary_(ID_0OEtXVrFH8blxdLd88PRoA) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Hi Colleagues, Varian 600CD Monitor Panel We used to monitor signals with MODTRIG as external trigger source. The reference points of the signals are at different locations, i.e. the reference points of MODTRIG and HVPSI is the logic ground at AFC MISC pcb and at ground point in thyratron deck... Do we need to monitor the signals at the monitor panel one at a time and without the MODTRIG as external source trigger? Could anyone comment on the above issue? Best regards, Kim Yeung --------------------------------- ALL-NEW Yahoo! Messenger - all new features - even more fun! --Boundary_(ID_0OEtXVrFH8blxdLd88PRoA) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 8bit

Hi Colleagues,

      Varian 600CD Monitor Panel

We used to monitor signals with MODTRIG as external trigger source. The reference points of the signals are at different locations, i.e. the reference points of MODTRIG and HVPSI is the logic ground at AFC MISC pcb and at ground point in thyratron deck...

Do we need to monitor the signals at the monitor panel one at a time and without the MODTRIG as external source trigger?

Could anyone comment on the above issue?

Best regards,

Kim Yeung

ALL-NEW Yahoo! Messenger - all new features - even more fun! --Boundary_(ID_0OEtXVrFH8blxdLd88PRoA)-- From VM Wed Oct 6 10:34:54 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["4014" "Tuesday" "5" "October" "2004" "14:11:34" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "124" "Re: 2100 C Kfil faults in the morning." "^From:" nil nil "10" nil nil (number " " mark " Randy.McVittie@lr Oct 5 124/4014 " thread-indent "\"Re: 2100 C Kfil faults in the morning.\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5400D41OT2T7@hubbard.azu.nl>; Tue, 5 Oct 2004 22:27:05 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100522270125454 ; Tue, 05 Oct 2004 22:27:01 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA23104; Tue, 05 Oct 2004 22:27:05 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma023051; Tue, 05 Oct 2004 22:26:53 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA29568 for linac-eng-list; Tue, 05 Oct 2004 13:10:45 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA29564 for ; Tue, 05 Oct 2004 13:10:43 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.9724326; Tue, 05 Oct 2004 14:09:36 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i95I9afZ003245; Tue, 05 Oct 2004 14:09:36 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F24.0063F1CA ; Tue, 05 Oct 2004 14:11:39 -0400 Message-id: <85256F24.0063F01A.00@mail.lrcc.on.ca> MIME-version: 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_2FIL+w/UnW77It0PUkTUkw)" Precedence: bulk X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: Robert Wood Cc: linac-eng@plato.aristotle.net Subject: Re: 2100 C Kfil faults in the morning. Date: Tue, 05 Oct 2004 14:11:34 -0400 --Boundary_(ID_2FIL+w/UnW77It0PUkTUkw) Content-type: text/plain; charset=us-ascii Content-disposition: inline Hello Rober: I think this was the KFIL thread you were talking about: FROM LINAC ENG LIST: Has any one seen the transformer mount just falling off after breaking it's threads? Came in this morning to a KFIL fault. Traced it to either the isolation transformer or the klystron. Drained oil out of the klystron tank and took cover off. Found the filament transformer sitting on the bottom of the tank making no connection to the klystron at all. Makes one go hu.... Guy Eason Radiation Oncology Phoebe Putney Memorial Hospital Albany, GA (229) 312-2280 REPLY FROM DALE DORNACKER: Yes! This happened to us. What was your water temp. when you came in? I was told by an experianced Varian rep. that this happens when the nuts are to tight. If the unit shuts down and it cools down, the nylon contracts and snaps the bolts. Do not over tighten the nuts. Dale Guy, reply from Randy LaFoone it's been happening a lot since Varian started to ship the Klystrons installed in the machine. you can order replacement delrin rods from Radparts (toll free: 877-704-3838) they're part number is 35 2534-04 Randy This happened to us a couple of months ago with s/n 1767. It appears that the material that the stand offs are made of has changed. The current ones are made of delron and the older ones appear to be made of nylon. We know this because we used old ones out of a CL2500 we were stripping out at the time. It a dirty job but someone has to do it. Regards Craig Pearce Senior BMET Clinical Engineering Auckland District Health Board "Robert Wood" on 2004-10-04 13:15:24 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: 2100 C Kfil faults in the morning. We have started having Kfil faults on our 2100C. They only occure in the morning and can happen when going to setup or beam on. Only happen two or three times and then are fine for the rest of the day. Doesn't happen everyday and the error log just shows it going to kfil. Seems like I remember some discussion on this a couple of months ago but I didn't save the thread. Does anyone have that discussion? ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. --Boundary_(ID_2FIL+w/UnW77It0PUkTUkw) Content-type: text/html; name=att1.htm Content-description: Internet HTML Content-disposition: attachment; filename=att1.htm Content-transfer-encoding: base64 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgaHR0cC1lcXVpdj1Db250ZW50LVR5cGUgY29udGVu dD0idGV4dC9odG1sOyBjaGFyc2V0PWlzby04ODU5LTEiPg0KPE1FVEEgY29udGVudD0iTVNIVE1M IDYuMDAuMjgwMC4xMjI2IiBuYW1lPUdFTkVSQVRPUj48L0hFQUQ+DQo8Qk9EWSBzdHlsZT0iTUFS R0lOLVRPUDogMnB4OyBGT05UOiA4cHQgTVMgU2FucyBTZXJpZjsgTUFSR0lOLUxFRlQ6IDJweCI+ DQo8RElWPjxGT05UIHNpemU9MT5XZSBoYXZlIHN0YXJ0ZWQgaGF2aW5nIEtmaWwgZmF1bHRzIG9u IG91ciAyMTAwQy4mbmJzcDsgVGhleSANCm9ubHkgb2NjdXJlIGluIHRoZSBtb3JuaW5nIGFuZCBj YW4gaGFwcGVuIHdoZW4gZ29pbmcgdG8gc2V0dXAgb3IgYmVhbSBvbi4mbmJzcDsgDQpPbmx5IGhh cHBlbiB0d28gb3IgdGhyZWUgdGltZXMgYW5kIHRoZW4gYXJlIGZpbmUgZm9yIHRoZSByZXN0IG9m IHRoZSBkYXkuJm5ic3A7IA0KRG9lc24ndCBoYXBwZW4gZXZlcnlkYXkgYW5kIHRoZSBlcnJvciBs b2cganVzdCBzaG93cyBpdCBnb2luZyB0byANCmtmaWwuPC9GT05UPjwvRElWPg0KPERJVj48Rk9O VCBzaXplPTE+U2VlbXMgbGlrZSBJIHJlbWVtYmVyIHNvbWUgZGlzY3Vzc2lvbiBvbiB0aGlzIGEg Y291cGxlIG9mIA0KbW9udGhzIGFnbyBidXQgSSBkaWRuJ3Qgc2F2ZSB0aGUgdGhyZWFkLiZuYnNw OyBEb2VzIGFueW9uZSBoYXZlIHRoYXQgDQpkaXNjdXNzaW9uPzwvRk9OVD48L0RJVj48L0JPRFk+ PC9IVE1MPg0KDQo= --Boundary_(ID_2FIL+w/UnW77It0PUkTUkw)-- From VM Thu Oct 7 09:27:34 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2354" "Wednesday" "6" "October" "2004" "15:28:05" "+0200" "Will Pazda" "will.pazda@rxl.co.za" nil "67" "Philips SL75/20 documentation" "^From:" nil nil "10" nil nil (number " " mark " Will Pazda Oct 6 67/2354 " thread-indent "\"Philips SL75/20 documentation\"\n") nil nil nil nil nil nil] nil) Return-path: Disposition-notification-to: Will Pazda Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5600CPZ5MEUU@hubbard.azu.nl>; Wed, 6 Oct 2004 17:27:57 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100617274923015 ; Wed, 06 Oct 2004 17:27:49 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id RAA13822; Wed, 06 Oct 2004 17:27:54 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma013713; Wed, 06 Oct 2004 17:27:29 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id IAA13945 for linac-eng-list; Wed, 06 Oct 2004 08:28:30 -0500 (CDT) Received: from nt-tudor00 ([196.15.187.67]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id IAA13941 for ; Wed, 06 Oct 2004 08:28:27 -0500 (CDT) Received: from 10.20.30.6 by nt-tudor00 (InterScan E-Mail VirusWall NT); Wed, 06 Oct 2004 15:29:08 +0200 Message-id: MIME-version: 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_abMUwbmhmFMYNK3xXHE6KA)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message Thread-Topic: Philips SL75/20 documentation Thread-Index: AcSrqE/hMKWcQgMmTuKJRSOysTUDxw== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Will Pazda Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Philips SL75/20 documentation Date: Wed, 06 Oct 2004 15:28:05 +0200 This is a multi-part message in MIME format. --Boundary_(ID_abMUwbmhmFMYNK3xXHE6KA) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_bDOuddnMadST7SzNXNcKnw)" --Boundary_(ID_bDOuddnMadST7SzNXNcKnw) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable Hi, =20 I'm looking for a Philips document that I used to have but have since mislaid. I do not know the publication number or exact title description, but it was to do with the data format that the Linac (VDU Type) uses over the serial interface for external verification. Does anybody have this document ?. =20 Thanks and regards, =20 Will Pazda =20 =20 =20 --Boundary_(ID_bDOuddnMadST7SzNXNcKnw) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable
Hi,

I'm = looking for a=20 Philips document that I used to have but have since mislaid. I do not = know the=20 publication number or exact title description, but it was to do with the = data=20 format that the Linac (VDU Type) uses over the serial interface for = external=20 verification. Does anybody have this document ?.

Thanks = and=20 regards,

Will=20 Pazda

--Boundary_(ID_bDOuddnMadST7SzNXNcKnw)-- --Boundary_(ID_abMUwbmhmFMYNK3xXHE6KA)-- From VM Thu Oct 7 09:27:35 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["605" "Wednesday" "6" "October" "2004" "22:57:10" "+0100" "pankaj roy" "pankajroy135@yahoo.co.uk" nil "24" "About Clinac4" "^From:" nil nil "10" nil nil (number " " mark " pankaj roy Oct 6 24/605 " thread-indent "\"About Clinac4\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I56002S2T1OBC@hubbard.azu.nl>; Thu, 7 Oct 2004 01:53:50 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100701534832606 ; Thu, 07 Oct 2004 01:53:48 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id BAA04048; Thu, 07 Oct 2004 01:53:52 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa04035; Thu, 07 Oct 2004 01:53:49 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id QAA20878 for linac-eng-list; Wed, 06 Oct 2004 16:57:42 -0500 (CDT) Received: from web25304.mail.ukl.yahoo.com (web25304.mail.ukl.yahoo.com [217.12.10.76]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id QAA20874 for ; Wed, 06 Oct 2004 16:57:41 -0500 (CDT) Received: from [203.164.94.159] by web25304.mail.ukl.yahoo.com via HTTP; Wed, 06 Oct 2004 22:57:10 +0100 (BST) In-reply-to: Message-id: <20041006215710.40711.qmail@web25304.mail.ukl.yahoo.com> MIME-version: 1.0 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 From: pankaj roy Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: About Clinac4 Date: Wed, 06 Oct 2004 22:57:10 +0100 (BST) Hi all, One of our friends wants to know about disposal norms (if any) for parts of a Varian Clinac-4:---- a) JAWS (are they depleted uranium) Are there any recommended disposal methods and are there any legal requirements. b) Waveguide window ( is it Beryllium) Are there any recommended disposal methods and are there any legal requirements. All suggestions would be welcome. Best Regards, Pankaj ___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com From VM Fri Oct 8 06:41:18 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["735" "Thursday" "7" "October" "2004" "08:28:47" "-0400" "Peter Vitali" "peter.vitali@yale.edu" nil "25" "Re: About Clinac4" "^From:" nil nil "10" nil nil (number " " mark " Peter Vitali Oct 7 25/735 " thread-indent "\"Re: About Clinac4\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I57006WFXURB1@hubbard.azu.nl>; Thu, 7 Oct 2004 16:35:24 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100716352225708 ; Thu, 07 Oct 2004 16:35:22 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id QAA01478; Thu, 07 Oct 2004 16:35:27 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmac01372; Thu, 07 Oct 2004 16:34:47 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id HAA26436 for linac-eng-list; Thu, 07 Oct 2004 07:29:21 -0500 (CDT) 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 HAA26432 for ; Thu, 07 Oct 2004 07:29:20 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.1-1 #30532) with ESMTP id <01LFQS0RBU36003KTQ@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Thu, 07 Oct 2004 08:28:30 -0400 (EDT) Message-id: <4165367C.F15BB1BD@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.76 (Macintosh; U; PPC) Content-type: text/plain; charset=us-ascii; x-mac-type=54455854; x-mac-creator=4D4F5353 Content-transfer-encoding: 7bit Precedence: bulk X-Accept-Language: en References: <20041006215710.40711.qmail@web25304.mail.ukl.yahoo.com> X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Peter Vitali Sender: owner-linac-eng@plato.aristotle.net To: pankaj roy Cc: linac-eng@plato.aristotle.net Subject: Re: About Clinac4 Date: Thu, 07 Oct 2004 08:28:47 -0400 Pankaj: It all depends on the Regulatory Agencies in the country that has control over Radioactive Materials and their by products and also what agency controls Chemicals or Metals and their disposal or movement. You may also have to get information from the agency that controls Transportation. From your Email address I see you are some where in the United Kingdom but I cannot tell from your message where "one of your friends" is. 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... From VM Fri Oct 8 06:41:18 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1726" "Thursday" "7" "October" "2004" "11:07:04" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "53" "RE: About Clinac4" "^From:" nil nil "10" nil nil (number " " mark " Maddox, Buford J Oct 7 53/1726 " thread-indent "\"RE: About Clinac4\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5800JI45XOHY@hubbard.azu.nl>; Thu, 7 Oct 2004 19:29:49 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100719294729997 ; Thu, 07 Oct 2004 19:29:47 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA23427; Thu, 07 Oct 2004 19:29:52 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma023359; Thu, 07 Oct 2004 19:29:14 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA00396 for linac-eng-list; Thu, 07 Oct 2004 10:08:11 -0500 (CDT) Received: from PHSXCHICI3.partners.org (phsxchici3.mgh.harvard.edu [132.183.130.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA00391 for ; Thu, 07 Oct 2004 10:08:08 -0500 (CDT) Received: by phsxchici3.mgh.harvard.edu with Internet Mail Service (5.5.2657.72) id <4K4A0QKH>; Thu, 07 Oct 2004 11:08:17 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E111466598@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) 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 From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: 'pankaj roy' , linac-eng@plato.aristotle.net Subject: RE: About Clinac4 Date: Thu, 07 Oct 2004 11:07:04 -0400 The jaws, primary collimator, and top circular piece of shielding are DU. It is slightly radioactive, less than natural U, I think. But the Uranium oxide that forms on the surface if its protection is breached is very toxic also. Here in the USA there are strict disposal rules and regulations, liscensed companies and certified Physicists required. I am not sure, but I think the waveguide window is Be, as you said. It is toxic, and would be disposed of as a hazardous material here. The pulse transformer originally had PCBs, another hazardous waste. most of these were changed out, but a test or certification label is required here. Pb is also a hazardous waste that is controlled here. We have a local company that will remove and dispose of Linacs. Oncology Services International, New Jersey. Still have to make sure they comply with all the rules. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of pankaj roy Sent: Wednesday, October 06, 2004 5:57 PM To: linac-eng@plato.aristotle.net Subject: About Clinac4 Hi all, One of our friends wants to know about disposal norms (if any) for parts of a Varian Clinac-4:---- a) JAWS (are they depleted uranium) Are there any recommended disposal methods and are there any legal requirements. b) Waveguide window ( is it Beryllium) Are there any recommended disposal methods and are there any legal requirements. All suggestions would be welcome. Best Regards, Pankaj ___________________________________________________________ALL-NEW Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com From VM Wed Sep 22 10:39:42 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["4039" "Wednesday" "22" "September" "2004" "08:17:57" "+0200" "terence.kearey@orebroll.se" "terence.kearey@orebroll.se" nil "104" "RE: Frequent HWFA interlocks" "^From:" nil nil "9" nil nil (number " " mark " terence.kearey@or Sep 22 104/4039 " thread-indent "\"RE: Frequent HWFA interlocks\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I4F001INO9FFT@hubbard.azu.nl>; Wed, 22 Sep 2004 10:15:39 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004092210153602526 ; Wed, 22 Sep 2004 10:15:36 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id KAA06072; Wed, 22 Sep 2004 10:17:11 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma005817; Wed, 22 Sep 2004 10:16:15 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id BAA28034 for linac-eng-list; Wed, 22 Sep 2004 01:18:23 -0500 (CDT) Received: from pebble.orebroll.se (pebble.orebroll.se [194.103.185.215]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id BAA28030 for ; Wed, 22 Sep 2004 01:18:21 -0500 (CDT) Received: from storm.orebroll.se ([192.168.250.152]) by pebble.orebroll.se with Microsoft SMTPSVC(6.0.3790.0); Wed, 22 Sep 2004 08:18:04 +0200 Received: by storm.orebroll.se with Internet Mail Service (5.5.2653.19) id ; Wed, 22 Sep 2004 08:17:57 +0200 Message-id: <959992E73874F24C846A9CEA66D10C283D1B9D@rouge.orebroll.se> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_KudVVS7litzhuFHasPloiw)" Precedence: bulk X-OriginalArrivalTime: 22 Sep 2004 06:18:04.0970 (UTC) FILETIME=[EBB578A0:01C4A06B] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: terence.kearey@orebroll.se Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: Frequent HWFA interlocks Date: Wed, 22 Sep 2004 08:17:57 +0200 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_KudVVS7litzhuFHasPloiw) Content-type: text/plain; charset=iso-8859-1 If you look in the event logs in the clinac you'll get a better diagnosis of the HWFA, there are a large number of errors which will give this. You need to narrow it down. Error logs for some modes are only created if they occur in beam on. If you're not getting an event log then you can sometimes override the offending interlock (depending on what it is of course, take care what you override), beam on, remove the interlock override and then you get an event log created. Hope this helps. Tel. -----Original Message----- From: kim yeung [mailto:kimyeungwk@yahoo.co.uk] Sent: den 21 september 2004 15:28 To: Linac-Eng Subject: Re: Frequent HWFA interlocks Hi Colleagues, Varian 600CD, Version 6.0 We have frequent HWFA interlocks on one of our 600CD and the symptom showed the 15V had been dropped and also the light field was dimmed. We had replaced the 15V power supply in the console, the gantry cables and the light field relay but no luck. Any advice or suggestions to the above problem? Thanks in advance. Kim Yeung _____ ALL-NEW Yahoo! Messenger - all new features - even more fun! --Boundary_(ID_KudVVS7litzhuFHasPloiw) Content-type: text/html; charset=iso-8859-1 Message
If you look in the event logs in the clinac you'll get a better diagnosis of the HWFA, there are a large number of errors which will give this. You need to narrow it down. Error logs for some modes are only created if they occur in beam on. If you're not getting an event log then you can sometimes override the offending interlock (depending on what it is of course, take care what you override), beam on, remove the interlock override and then you get an event log created.

Hope this helps.

Tel.

-----Original Message-----
From: kim yeung [mailto:kimyeungwk@yahoo.co.uk]
Sent: den 21 september 2004 15:28
To: Linac-Eng
Subject: Re: Frequent HWFA interlocks

Hi Colleagues,

Varian 600CD, Version 6.0

We have frequent HWFA interlocks on one of our 600CD and the symptom showed the 15V had been dropped and also the light field was dimmed.

We had replaced the 15V power supply in the console, the gantry cables and the light field relay but no luck.

Any advice or suggestions to the above problem?

Thanks in advance.

Kim Yeung

ALL-NEW Yahoo! Messenger - all new features - even more fun!
--Boundary_(ID_KudVVS7litzhuFHasPloiw)-- From VM Fri Oct 8 14:42:36 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["5933" "Friday" "8" "October" "2004" "12:21:03" "+0200" "Albrecht, Christian" "Christian.Albrecht@kliniken-heidenheim.de" nil "174" "AW: About Clinac4" "^From:" nil nil "10" nil nil (number " " mark " Albrecht, Christi Oct 8 174/5933 " thread-indent "\"AW: About Clinac4\"\n") nil nil nil nil nil nil] nil) Return-path: Disposition-notification-to: "Albrecht, Christian" Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5900BODLQFHB@hubbard.azu.nl>; Fri, 8 Oct 2004 14:08:58 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100814085120628 ; Fri, 08 Oct 2004 14:08:51 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id OAA18217; Fri, 08 Oct 2004 14:08:57 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma018119; Fri, 08 Oct 2004 14:08:17 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id FAA14621 for linac-eng-list; Fri, 08 Oct 2004 05:21:11 -0500 (CDT) Received: from kkhweb.kliniken-heidenheim.de (fw1.sig-ulm.de [213.182.151.11]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA14617 for ; Fri, 08 Oct 2004 05:21:07 -0500 (CDT) Received: from hermes.kliniken-heidenheim.de ([192.168.10.2]) by kkhweb.kliniken-heidenheim.de with Microsoft SMTPSVC(5.0.2195.6713); Fri, 08 Oct 2004 12:28:20 +0200 Received: from athen.kliniken-heidenheim.int (unverified) by hermes.kliniken-heidenheim.de (Content Technologies SMTPRS 4.3.14) with ESMTP id for ; Fri, 08 Oct 2004 12:13:19 +0200 Message-id: <19ED66C7BF0FDA4F85EBB8689BB0C6230DC331@athen.kliniken-heidenheim.int> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_by/7hFqCBQfS4XnNt/SjhA)" Precedence: bulk content-class: urn:content-classes:message X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 Thread-Topic: About Clinac4 Thread-Index: AcSr/oqMRgN6pKUUTBegydxOYTPo/wBIDYdw X-OriginalArrivalTime: 08 Oct 2004 10:28:20.0513 (UTC) FILETIME=[88478110:01C4AD21] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Albrecht, Christian" Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng Subject: AW: About Clinac4 Date: Fri, 08 Oct 2004 12:21:03 +0200 This is a multi-part message in MIME format. --Boundary_(ID_by/7hFqCBQfS4XnNt/SjhA) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: quoted-printable Hello Pankaj, i were told by our gouvernmental supervisors (Germany) that there are older= Clinac models, where parts of the bending magnet become radioactive too, a= s they accumulate activated Co (=3D Co60) during their use, which leads to = a markeable amount of activity there. Be aware of this. Newer models are to= ld to become less activated due to different materials used in bending magn= ets now. We have to certify the amount of activity of any possibly activate= d part before disposal of a machine.=20 Regards Ch. Albrecht > -----Urspr=FCngliche Nachricht----- > Von: pankaj roy [SMTP:pankajroy135@yahoo.co.uk] > Gesendet am: Mittwoch, 6. Oktober 2004 23:57 > An: linac-eng@plato.aristotle.net > Betreff: About Clinac4 >=20 > Hi all, >=20 > One of our friends wants to know about disposal norms > (if any) for parts of a Varian Clinac-4:---- >=20 > a) JAWS (are they depleted uranium) > Are there any recommended disposal methods=20 > and are there any legal requirements. >=20 > b) Waveguide window ( is it Beryllium) > Are there any recommended disposal methods=20 > and are there any legal requirements. >=20 > All suggestions would be welcome. >=20 > Best Regards, >=20 > Pankaj >=20 >=20 > =09 > =09 > =09 > ___________________________________________________________ALL-NEW Yahoo!= Messenger - all new features - even more fun! http://uk.messenger.yahoo.c= om Diese Mail wurde von diversen Virenscannern ueberprueft. These Mail was scanned by several virusscanners. --Boundary_(ID_by/7hFqCBQfS4XnNt/SjhA) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: quoted-printable AW: About Clinac4
Hello = Pankaj,
i wer= e told by our gouvernmental supervisors (Germany) that there are older Clin= ac models, where parts of the bending magnet become radioactive too, as the= y accumulate activated Co (=3D Co60) during their use, which leads to a mar= keable amount of activity there. Be aware of this. Newer models are told to= become less activated due to different materials used in bending magnets n= ow. We have to certify the amount of activity of any possibly activated par= t before disposal of a machine.

Regard= s
Ch. A= lbrecht

-----Urspr=FCngliche Nac= hricht-----
Von:  &nbs= p; pankaj roy [SMTP:pankajroy135@y= ahoo.co.uk]
Gesendet am: &n= bsp; Mittwoch, 6. Oktober 20= 04 23:57
An:   = ; linac-eng@plato.aristotle.= net
Betreff:  =       Abo= ut Clinac4

Hi all,

One of our friends wants= to know about disposal norms
(if any) for parts of a= Varian Clinac-4:----

a) JAWS (are they deplet= ed uranium)
    = ;     Are there any recommended disposal methods
    = ;     and are there any legal requirements.

b) Waveguide window ( is= it Beryllium)
    = ;      Are there any recommended disposal methods =
    = ;      and are there any legal requirements.

All suggestions would be= welcome.

Best Regards,

Pankaj



        &nbs= p;
_______________________= ____________________________________ALL-NEW Yahoo! Messenger - all new feat= ures - even more fun! http:= //uk.messenger.yahoo.com

Diese Mail wurde von diversen Virenscannern ueberprueft.
These Mail was scanned by several virusscanners.
--Boundary_(ID_by/7hFqCBQfS4XnNt/SjhA)-- From VM Mon Oct 11 08:00:20 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["8888" "Friday" "8" "October" "2004" "12:07:58" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "243" "RE: About Clinac4" "^From:" nil nil "10" nil nil (number " " mark " Maddox, Buford J Oct 8 243/8888 " thread-indent "\"RE: About Clinac4\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5A00I9P1T0OM@hubbard.azu.nl>; Fri, 8 Oct 2004 19:55:52 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100819554929454 ; Fri, 08 Oct 2004 19:55:49 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA03087; Fri, 08 Oct 2004 19:55:54 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma003072; Fri, 08 Oct 2004 19:55:27 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA20634 for linac-eng-list; Fri, 08 Oct 2004 11:08:33 -0500 (CDT) Received: from PHSXCHICI3.partners.org (phsxchici3.mgh.harvard.edu [132.183.130.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA20630 for ; Fri, 08 Oct 2004 11:08:31 -0500 (CDT) Received: by phsxchici3.mgh.harvard.edu with Internet Mail Service (5.5.2657.72) id <4K4BK3F7>; Fri, 08 Oct 2004 12:08:58 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E11146659A@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_qEgrDh1OKbZw8zfurRYdPw)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: "'Albrecht, Christian'" , Linac-Eng Subject: RE: About Clinac4 Date: Fri, 08 Oct 2004 12:07:58 -0400 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_qEgrDh1OKbZw8zfurRYdPw) Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable CL4-80s and 6-100s have DU, and do not have a bending magnet, but this = is good advice. Was there an old Clinac 6 with a bending magnet? The target = and everything near it gets radioactive on higher energy (>8) machines, = which have bending magnets. Also any slits used to define the energy, or any = other location where the beam hits accidentally. Need a good probe type = radiation detector, like GM or Scintillator to prospect for the location, then an ionization type to measure quantities. Our 15 Mv gets quite a bit of = activity. It is especially bad to touch anything radioactive. Talk to your = health Physics folks. =20 Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Albrecht, = Christian Sent: Friday, October 08, 2004 6:21 AM To: Linac-Eng Subject: AW: About Clinac4 Hello Pankaj,=20 i were told by our gouvernmental supervisors (Germany) that there are = older Clinac models, where parts of the bending magnet become radioactive = too, as they accumulate activated Co (=3D Co60) during their use, which leads to a = markeable amount of activity there. Be aware of this. Newer models are told to = become less activated due to different materials used in bending magnets now. We = have to certify the amount of activity of any possibly activated part before = disposal of a machine.=20 Regards=20 Ch. Albrecht=20 -----Urspr=FCngliche Nachricht-----=20 Von: pankaj roy [SMTP:pankajroy135@yahoo.co.uk]=20 Gesendet am: Mittwoch, 6. Oktober 2004 23:57=20 An: linac-eng@plato.aristotle.net=20 Betreff: About Clinac4=20 Hi all,=20 One of our friends wants to know about disposal norms=20 (if any) for parts of a Varian Clinac-4:----=20 a) JAWS (are they depleted uranium)=20 Are there any recommended disposal methods=20 and are there any legal requirements.=20 b) Waveguide window ( is it Beryllium)=20 Are there any recommended disposal methods=20 and are there any legal requirements.=20 All suggestions would be welcome.=20 Best Regards,=20 Pankaj=20 =20 =20 =20 ___________________________________________________________ALL-NEW = Yahoo! Messenger - all new features - even more fun! = http://uk.messenger.yahoo.com =20 Diese Mail wurde von diversen Virenscannern ueberprueft. These Mail was scanned by several virusscanners. --Boundary_(ID_qEgrDh1OKbZw8zfurRYdPw) Content-type: text/html; charset=ISO-8859-1 Content-transfer-encoding: quoted-printable AW: About Clinac4
CL4-80s and 6-100s have DU, and do not have a = bending magnet,=20 but this is good advice. Was there an old Clinac 6 with a bending = magnet? The target and everything near it gets radioactive on = higher energy=20 (>8) machines, which have bending magnets. = Also any slits=20 used to define the energy, or any other location where the beam hits=20 accidentally. Need a good probe type radiation detector, like GM = or=20 Scintillator to prospect for the location, then an ionization type to = measure=20 quantities.   Our 15 Mv gets quite a bit of = activity. =20

It is=20 especially bad to touch anything radioactive. Talk to your health = Physics=20 folks.

Jerry

-----Original Message-----
From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of = Albrecht,=20 Christian
Sent: Friday, October 08, 2004 6:21 = AM
To:=20 Linac-Eng
Subject: AW: About = Clinac4

Hello=20 Pankaj,
i were told by our gouvernmental supervisors (Germany) that = there are=20 older Clinac models, where parts of the bending magnet become = radioactive too,=20 as they accumulate activated Co (=3D Co60) during their use, which = leads to a=20 markeable amount of activity there. Be aware of this. Newer models = are told to=20 become less activated due to different materials used in bending = magnets now.=20 We have to certify the amount of activity of any possibly activated = part=20 before disposal of a machine.

Regards=20
Ch.=20 Albrecht

-----Urspr=FCngliche = Nachricht-----
Von:    pankaj roy=20 [SMTP:pankajroy135@yahoo.co.uk]
Gesendet am:    = Mittwoch, 6. Oktober 2004 23:57
An:    =20 linac-eng@plato.aristotle.net=20
Betreff:        = About Clinac4

Hi = all,

One of our friends = wants to know=20 about disposal norms
(if any) for parts of a Varian Clinac-4:---- =

a) JAWS (are they = depleted=20 uranium)
         Are there = any=20 recommended disposal methods
         and are=20 there any legal requirements.

b) Waveguide window = ( is it=20 Beryllium)
          Are = there any=20 recommended disposal methods
          and=20 are there any legal requirements.

All suggestions = would be=20 welcome.

Best = Regards,

Pankaj =

        =
        =
       =20
___________________________________________________________ALL-= NEW=20 Yahoo! Messenger - all new features - even more fun! http://uk.messenger.yahoo.com=

Diese Mail wurde von diversen Virenscannern=20 ueberprueft.
These Mail was scanned by several=20 virusscanners.
--Boundary_(ID_qEgrDh1OKbZw8zfurRYdPw)-- From VM Mon Oct 11 08:00:20 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["494" "Friday" "8" "October" "2004" "11:19:24" "-0600" "Robert Wood" "WOODR@slrmc.org" nil "10" "Varian Simulator with Fisher MX75 (generator replacement)" "^From:" nil nil "10" nil nil (number " " mark " Robert Wood Oct 8 10/494 " thread-indent "\"Varian Simulator with Fisher MX75 (generator replacement)\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5A0007L4SGL9@hubbard.azu.nl>; Fri, 8 Oct 2004 21:00:18 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004100821001630421 ; Fri, 08 Oct 2004 21:00:16 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id VAA08109; Fri, 08 Oct 2004 21:00:21 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmae08088; Fri, 08 Oct 2004 20:59:59 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA21710 for linac-eng-list; Fri, 08 Oct 2004 12:20:04 -0500 (CDT) Received: from gwia.slrmc.org (gwia.slrmc.org [199.99.194.3]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA21706 for ; Fri, 08 Oct 2004 12:20:03 -0500 (CDT) Received: from SL_DOM-MTA by gwia.slrmc.org with Novell_GroupWise; Fri, 08 Oct 2004 11:19:30 -0600 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 From: Robert Wood Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Varian Simulator with Fisher MX75 (generator replacement) Date: Fri, 08 Oct 2004 11:19:24 -0600 For those of you that have replaced the MX75 generator in your Ximatron Simulators. What have you used for the new generator. What was the cost, availablity, and down time. Varian was supplying a generator but they don't have a supplier at this time. They expect to have one in 3-4 months but I am trying to figure out what to do if I can't keep this thing going for three months. No one is apparently supporting this generator any longer and what parts that are available are expensive. From VM Tue Oct 12 09:14:56 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2055" "Tuesday" "12" "October" "2004" "02:09:48" "+0100" "kim yeung" "kimyeungwk@yahoo.co.uk" nil "58" "Re: Varian 600CD main thyratron triggering" "^From:" nil nil "10" nil nil (number " " mark " kim yeung Oct 12 58/2055 " thread-indent "\"Re: Varian 600CD main thyratron triggering\"\n") nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5G00FBDAMTLC@hubbard.azu.nl>; Tue, 12 Oct 2004 04:52:07 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101204520507127 ; Tue, 12 Oct 2004 04:52:05 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id EAA06437; Tue, 12 Oct 2004 04:52:13 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma006431; Tue, 12 Oct 2004 04:52:02 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id UAA00626 for linac-eng-list; Mon, 11 Oct 2004 20:10:21 -0500 (CDT) Received: from web25304.mail.ukl.yahoo.com (web25304.mail.ukl.yahoo.com [217.12.10.76]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id UAA00622 for ; Mon, 11 Oct 2004 20:10:19 -0500 (CDT) Received: from [210.0.231.246] by web25304.mail.ukl.yahoo.com via HTTP; Tue, 12 Oct 2004 02:09:48 +0100 (BST) Message-id: <20041012010948.82005.qmail@web25304.mail.ukl.yahoo.com> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_xb8tloutK1buPijpwIFutg)" Content-transfer-encoding: 8BIT Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: kim yeung Sender: owner-linac-eng@plato.aristotle.net To: Linac-Eng Subject: Re: Varian 600CD main thyratron triggering Date: Tue, 12 Oct 2004 02:09:48 +0100 (BST) --Boundary_(ID_xb8tloutK1buPijpwIFutg) Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Hi Colleagues, Varian 600CD Recently, we tested several thyratron trigger pcbs of the the Varian 600CD and found some pcbs caused a high negative discharge spike on the PFN waveform. We were told it is caused by mis-match of the PFN circuit. We have a feeling that the negative spike can cause mod fault easily. Have anyone come across this "situation"? Could anyone advise how to eliminate the negative spike? Best regards, Kim Yeung --------------------------------- ALL-NEW Yahoo! Messenger - all new features - even more fun! --Boundary_(ID_xb8tloutK1buPijpwIFutg) Content-type: text/html; charset=iso-8859-1 Content-transfer-encoding: 8bit

Hi Colleagues,

         Varian 600CD

Recently, we tested several thyratron trigger pcbs of the the Varian 600CD and found some pcbs caused a high negative discharge spike on the PFN waveform. We were told it is caused by mis-match of the PFN circuit.

We have a feeling that the negative spike can cause mod fault easily.

Have anyone come across this "situation"?

Could anyone advise how to eliminate the negative spike?

Best regards,

Kim Yeung

ALL-NEW Yahoo! Messenger - all new features - even more fun! --Boundary_(ID_xb8tloutK1buPijpwIFutg)-- From VM Wed Oct 13 14:28:26 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["483" "Wednesday" "13" "October" "2004" "14:54:20" "+1000" "Vince Reynolds" "VReynold@doh.health.nsw.gov.au" nil "15" "maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5I002EXGCRU7@hubbard.azu.nl>; Wed, 13 Oct 2004 08:50:54 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101308505016092 ; Wed, 13 Oct 2004 08:50:50 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id IAA22940; Wed, 13 Oct 2004 08:50:58 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma022930; Wed, 13 Oct 2004 08:50:39 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA24749 for linac-eng-list; Tue, 12 Oct 2004 23:55:22 -0500 (CDT) 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 XAA24745 for ; Tue, 12 Oct 2004 23:55:19 -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; Wed, 13 Oct 2004 14:55:19 +1000 Received: from MXSCAN ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.2-X27 #30538) with ESMTP id <01LFZJ8KGY3A00163G@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Wed, 13 Oct 2004 14:54:35 -0500 (EST) Received: from DOH_HUB-MTA by dohprimo.ccf.health.nsw.gov.au with Novell_GroupWise; Wed, 13 Oct 2004 14:54:35 +1000 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 Status: O From: Vince Reynolds Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: maintenance software Date: Wed, 13 Oct 2004 14:54:20 +1000 Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. From VM Wed Oct 13 14:28:26 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["9120" "Wednesday" "13" "October" "2004" "04:02:01" "-0500" "Williams, Rod" "rod.williams@phci.org" nil "162" "RE: Varian CL2100EX Losing Water" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5I001PRR7HKH@hubbard.azu.nl>; Wed, 13 Oct 2004 12:45:31 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101312452525088 ; Wed, 13 Oct 2004 12:45:25 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id MAA04601; Wed, 13 Oct 2004 12:45:33 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma004543; Wed, 13 Oct 2004 12:45:11 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id EAA27869 for linac-eng-list; Wed, 13 Oct 2004 04:02:39 -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 EAA27865 for ; Wed, 13 Oct 2004 04:02:38 -0500 (CDT) Received: from intfw2.phci.org (root@localhost) by intfw2.phci.org with ESMTP id i9D925AJ007151 for ; Wed, 13 Oct 2004 04:02:05 -0500 (CDT) Received: from zixvpm00.phci.org (zixvpm02.phci.org [172.20.3.22]) by intfw2.phci.org with ESMTP id i9D925e7007148 for ; Wed, 13 Oct 2004 04:02:05 -0500 (CDT) Received: from zixvpm02.phci.org (ZixVPM [127.0.0.1]) by Outbound.phci.org (Proprietary) with ESMTP id 1ADC11C0073 for ; Wed, 13 Oct 2004 04:02:05 -0500 (CDT) Received: from smtpscan.phci.org (smtpscan.phci.org [172.20.3.10]) by zixvpm00.phci.org (Proprietary) with SMTP id 830161A407E; Wed, 13 Oct 2004 04:02:03 -0500 (CDT) Received: from wmhmail1.phci.org ([IP=10.1.1.28]) by eSafe SMTP Relay 1097597109; Wed Oct 13 04:34:16 2004 Received: by wmhmail1.phci.org with Internet Mail Service (5.5.2657.72) id ; Wed, 13 Oct 2004 04:02:02 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_yDO+4IOHrvorh/Fo1nZFfg)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Williams, Rod" Sender: owner-linac-eng@plato.aristotle.net To: "'JamesR.Wilson@providence.org'" , linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX Losing Water Date: Wed, 13 Oct 2004 04:02:01 -0500 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_yDO+4IOHrvorh/Fo1nZFfg) Content-type: text/plain; charset=iso-8859-1 Hi James you are way to hard on yourself, all of us have made more than our share of errors, some just don't admit it. I don't think I would have on this one either, just shows I have work to do. LOL Now you have helped many because we will be paying closer attention to the gasket next time.. Thanks -----Original Message----- From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org] Sent: Tuesday, October 12, 2004 6:12 PM To: linac-eng@plato.aristotle.net Subject: Varian CL2100EX Losing Water A few weeks ago I posted a problem stating that we were losing water on our linac and had not figured out where it was going. I apologize to all for not getting back to you about this problem. As many of us do, I have numerous other duties besides the linacs in the hospital. When we started hearing about the problem from the therapists, we looked at all the potential spots for water leakage. This includes 2 looks at the pit, which I was able to get a very good look at as well as getting my hands underneath the cables to feel for water. There was no water in the pit or any where else. Also the problem appeared to be intermittent. We could go days without losing any. We finally changed the heat exchanger, even though the symptoms did not match any previous exchanger failures I have seen over the past 20 years. After a couple of days it was evident that we were still losing water. I had mentioned to the therapists that we had slopped some water on the carpet during the exchange and that they should not be alarmed by that. Some colleagues suggested that the klystron solenoid could be taking up the water. I was considering the suggestion to put a small drain hole in the bottom. About 4 days after the swap of the exchanger I told the therapists that I was going to be looking at the machine after hours. They commented that the floor was still QUITE wet after our previous work. I knew that was wrong. We went in to the stand again and the pit had water all over in it. There was a visible leak from the filter canister, dripping at a steady rate. About 1 month prior to the complaint I had serviced the water on the machine. When we heard there was a leak, the filter canister was high up on my suspect list. Neither I nor our other technician had seen or felt any water on or under the canister at any time until now. We removed the canister and fixed my self induced error with the gasket. One section had failed to seat properly and was sort of "flattened out". How it was able to leak intermittently and sometimes fairly profusely is still a mystery to me. I hear that Burger King is hiring!! Thanks to all, Jim Wilson Clinical Engineering Providence Health Systems DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. This information is confidential and intended solely for the use of the individual or entity to whom it is addressed. If you have received this email in error please notify the sender or our Customer Support Center at (262) 928-2777. We have scanned this email and its attachments for malicious content. However, the recipient should check this email and any attachments for the presence of viruses. ProHealth Care accepts no liability for any damage caused by any virus transmitted by this email. --Boundary_(ID_yDO+4IOHrvorh/Fo1nZFfg) Content-type: text/html; charset=iso-8859-1 Varian CL2100EX Losing Water
Hi James you are way to hard on yourself, all of us have made more than our share of errors, some just don't admit it. I don't think I would have on this one either, just shows I have work to do. LOL    Now you have helped many because we will be paying closer attention to the gasket next time..

Thanks

-----Original Message-----
From: JamesR.Wilson@providence.org [mailto:JamesR.Wilson@providence.org]
Sent: Tuesday, October 12, 2004 6:12 PM
To: linac-eng@plato.aristotle.net
Subject: Varian CL2100EX Losing Water

A few weeks ago I posted a problem stating that we were losing water on our linac and had not figured out where it was going. I apologize to all for not getting back to you about this problem. As many of us do, I have numerous other duties besides the linacs in the hospital. When we started hearing about the problem from the therapists, we looked at all the potential spots for water leakage. This includes 2 looks at the pit, which I was able to get a very good look at as well as getting my hands underneath the cables to feel for water. There was no water in the pit or any where else. Also the problem appeared to be intermittent. We could go days without losing any. We finally changed the heat exchanger, even though the symptoms did not match any previous exchanger failures I have seen over the past 20 years. After a couple of days it was evident that we were still losing water. I had mentioned to the therapists that we had slopped some water on the carpet during the exchange and that they should not be alarmed by that. Some colleagues suggested that the klystron solenoid could be taking up the water. I was considering the suggestion to put a small drain hole in the bottom. About 4 days after the swap of the exchanger I told the therapists that I was going to be looking at the machine after hours. They commented that the floor was still QUITE wet after our previous work. I knew that was wrong. We went in to the stand again and the pit had water all over in it. There was a visible leak from the filter canister, dripping at a steady rate. About 1 month prior to the complaint I had serviced the water on the machine. When we heard there was a leak, the filter canister was high up on my suspect list. Neither I nor our other technician had seen or felt any water on or under the canister at any time until now. We removed the canister and fixed my self induced error with the gasket. One section had failed to seat properly and was sort of "flattened out". How it was able to leak intermittently and sometimes fairly profusely is still a mystery to me. I hear that Burger King is hiring!! Thanks to all,

Jim Wilson
Clinical Engineering
Providence Health Systems

DISCLAIMER:
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--Boundary_(ID_yDO+4IOHrvorh/Fo1nZFfg)-- From VM Wed Oct 13 07:59:00 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["7432" "Tuesday" "12" "October" "2004" "07:57:20" "-0400" "Lapenna, Russ" "Russ.Lapenna@hrcc.on.ca" nil "183" "RE: Varian 600CD main thyratron triggering" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5H0027Y5K6YV@hubbard.azu.nl>; Tue, 12 Oct 2004 16:00:18 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101216000829196 ; Tue, 12 Oct 2004 16:00:08 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id QAA15672; Tue, 12 Oct 2004 16:00:16 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa15547; Tue, 12 Oct 2004 15:59:32 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id GAA07033 for linac-eng-list; Tue, 12 Oct 2004 06:58:48 -0500 (CDT) Received: from jccmx1.hrcc.on.ca (jccmx1.hrcc.on.ca [199.212.121.21]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id GAA07029 for ; Tue, 12 Oct 2004 06:58:46 -0500 (CDT) Received: from hrccex.hrcc.on.ca (hrccex.hrcc.on.ca [142.21.246.25]) by jccmx1.hrcc.on.ca (Postfix) with ESMTP id 0EABD4BF9; Tue, 12 Oct 2004 08:03:25 -0400 (EDT) Received: by hrccex.hrcc.on.ca with Internet Mail Service (5.5.2653.19) id ; Tue, 12 Oct 2004 07:57:22 -0400 Message-id: <9C688FB52A05D51194750002B325B5F7080324BE@hrccex.hrcc.on.ca> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_jCBdHeC6t7d91MTJ4qboaA)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lapenna, Russ" Sender: owner-linac-eng@plato.aristotle.net To: 'kim yeung' , Linac-Eng Subject: RE: Varian 600CD main thyratron triggering Date: Tue, 12 Oct 2004 07:57:20 -0400 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_jCBdHeC6t7d91MTJ4qboaA) Content-type: text/plain; charset=iso-8859-1 We experienced this exact situation. Upon changing from the 5167 to the 5193 magnetron, we were experiencing MOD faults but only when the machine was cold. We noticed the negative spike on the PFN waveform. After consulting with our Varian rep. we found out that they had come up with a mod to the PFN to reduce noise. I think the mod was originally for reduction of noise for portal vision but it ended up cleaning up our waveform beautifully. There is a drawing #1104740 D that will show the added components that make up this modification. They've added a coil L3 in series with thyratron V1. They've replaced R15 and R16 with 4 parallel 100 ohm 175W resistors and they've added another .006 uF cap C5 in parallel with C4. Hope this helps, Russ LaPenna EET Electronics Technologist Juravinski Cancer Centre 699 Concession Street Hamilton, Ontario L8V 5C2 Tel: (905) 387-9711 ext. 67017 E-mail: russ.lapenna@hrcc.on.ca -----Original Message----- From: kim yeung [mailto:kimyeungwk@yahoo.co.uk] Sent: Monday, October 11, 2004 9:10 PM To: Linac-Eng Subject: Re: Varian 600CD main thyratron triggering Hi Colleagues, Varian 600CD Recently, we tested several thyratron trigger pcbs of the the Varian 600CD and found some pcbs caused a high negative discharge spike on the PFN waveform. We were told it is caused by mis-match of the PFN circuit. We have a feeling that the negative spike can cause mod fault easily. Have anyone come across this "situation"? Could anyone advise how to eliminate the negative spike? Best regards, Kim Yeung _____ ALL-NEW Yahoo! Messenger - all new features - even more fun! _____ Block Spam Emails - Click here! This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance. --Boundary_(ID_jCBdHeC6t7d91MTJ4qboaA) Content-type: text/html; charset=iso-8859-1
We experienced this exact situation. Upon changing from the 5167 to the 5193 magnetron, we were experiencing MOD faults but only when the machine was cold. We noticed the negative spike on the PFN waveform. After consulting with our Varian rep. we found out that they had come up with a mod to the PFN to reduce noise. I think the mod was originally for reduction of noise for portal vision but it ended up cleaning up our waveform beautifully.

There is a drawing #1104740 D that will show the added components that make up this modification.

They've added a coil L3 in series with thyratron V1. They've replaced R15 and R16 with 4 parallel 100 ohm 175W resistors and they've added another .006 uF cap C5 in parallel with C4.

Hope this helps,

Russ LaPenna EET
Electronics Technologist

Juravinski Cancer Centre
699 Concession Street
Hamilton, Ontario
L8V 5C2

Tel:    (905) 387-9711 ext. 67017

E-mail: russ.lapenna@hrcc.on.ca

-----Original Message-----
From: kim yeung [mailto:kimyeungwk@yahoo.co.uk]
Sent: Monday, October 11, 2004 9:10 PM
To: Linac-Eng
Subject: Re: Varian 600CD main thyratron triggering

Hi Colleagues,

         Varian 600CD

Recently, we tested several thyratron trigger pcbs of the the Varian 600CD and found some pcbs caused a high negative discharge spike on the PFN waveform. We were told it is caused by mis-match of the PFN circuit.

We have a feeling that the negative spike can cause mod fault easily.

Have anyone come across this "situation"?

Could anyone advise how to eliminate the negative spike?

Best regards,

Kim Yeung

ALL-NEW Yahoo! Messenger - all new features - even more fun!

This information is directed in confidence solely to the person named above and may not otherwise be distributed, copied or disclosed. Therefore, this information should be considered strictly confidential. If you have received this email in error, please notify the sender immediately via a return email for further direction. Thank you for your assistance.

--Boundary_(ID_jCBdHeC6t7d91MTJ4qboaA)-- From VM Wed Oct 13 07:59:00 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1015" "Tuesday" "12" "October" "2004" "09:13:50" "-0500" "Stephen Jordan" "srjordan@uabmc.edu" nil "21" "21EX GFIL when moding up 6X" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5H00DS5CO9OZ@hubbard.azu.nl>; Tue, 12 Oct 2004 18:33:48 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101218334401995 ; Tue, 12 Oct 2004 18:33:44 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA12399; Tue, 12 Oct 2004 18:33:52 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma012319; Tue, 12 Oct 2004 18:33:13 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA08536 for linac-eng-list; Tue, 12 Oct 2004 09:14:38 -0500 (CDT) Received: from mail6.hs.uab.edu (msgmail6.hs.uab.edu [164.111.99.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA08532 for ; Tue, 12 Oct 2004 09:14:36 -0500 (CDT) Received: from uabmc.edu not authenticated [10.22.9.150] by mail6.hs.uab.edu with NetMail SMTP Agent $Revision: 3.22.1.13 $ on Novell NetWare; Tue, 12 Oct 2004 09:14:04 -0500 Received: from SMTP-MTA by uabmc.edu with Novell_GroupWise; Tue, 12 Oct 2004 09:14:04 -0500 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.2 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 From: Stephen Jordan Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: 21EX GFIL when moding up 6X Date: Tue, 12 Oct 2004 09:13:50 -0500 c3, SN 1629: When Tx a 6X TBI yesterday, our EX went down with a GFIL I/L. The 6X GUNI (normally 35) was 71, and the GUNV (normally -5) was -12 on the service analog meters. The Gun Controller error masg flashed "FIL I +", Filament voltage to the gun was not present. When I unplugged the gun, filament V returned. (uh-oh) Plug the gun leads back in, FIL V goes back to 0vdc, error returns on the Gun Ctrlr.The bottom two leds on the Gun LVPS would go out, indicating a crowbar. I troubleshot the error to the FIL P.S., replaced the PCB, and the filament V returned to normal, gun ctrlr error cleared. Hooooray. I'm going home after checkout....wrong. I ran every energy for 200 mu, all indicators normal. The instant I moded up 6X, I'm back to square one.(!) I have since changed the Gun Controller, as well. Sorry if I'm not terribly articulate; It has been a long night. Any ideas? Sounds like a bad gun, but I"ve not experienced one before. Thanks in advance, Steve Jordan UAB Rad Physics From VM Wed Oct 13 07:59:00 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["5774" "Tuesday" "12" "October" "2004" "15:57:00" "-0400" "Tim Cullen" "tcullen@wfubmc.edu" nil "150" "Radiation Oncology Engineer Job Posting" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5H00BYNRQ2OK@hubbard.azu.nl>; Tue, 12 Oct 2004 23:58:51 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101223585009083 ; Tue, 12 Oct 2004 23:58:50 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA20785; Tue, 12 Oct 2004 23:58:58 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma020765; Tue, 12 Oct 2004 23:58:26 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id OAA15884 for linac-eng-list; Tue, 12 Oct 2004 14:57:34 -0500 (CDT) Received: from vpm1.wfubmc.edu (vpm1.wfubmc.edu [152.11.242.101]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA15880 for ; Tue, 12 Oct 2004 14:57:32 -0500 (CDT) Received: from vpm1.wfubmc.edu (ZixVPM [127.0.0.1]) by Outbound.wfubmc.edu (Proprietary) with ESMTP id 4B4FD230096 for ; Tue, 12 Oct 2004 15:49:30 -0400 (EDT) Received: from EXCHVS2.medctr.ad.wfubmc.edu (unknown [152.11.200.74]) by vpm1.wfubmc.edu (Proprietary) with ESMTP id BB120230095 for ; Tue, 12 Oct 2004 15:49:29 -0400 (EDT) Message-id: <9AEEF1FB6254224AA355ED285F849165092F4F36@EXCHVS2.medctr.ad.wfubmc.edu> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_aJcKhRsMSaFTBz8Rb/e+Yg)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message Thread-Topic: Radiation Oncology Engineer Job Posting Thread-Index: AcSwlaMyeNKef0L2Qq+whaE2FY4Rlw== X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tim Cullen Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Radiation Oncology Engineer Job Posting Date: Tue, 12 Oct 2004 15:57:00 -0400 This is a multi-part message in MIME format. --Boundary_(ID_aJcKhRsMSaFTBz8Rb/e+Yg) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: quoted-printable Wake Forest University Baptist Medical Center currently has an opening for a Radiation Oncology Engineer. The radiation oncology department has recently moved into a new outpatient comprehensive cancer center located adjacent to the main campus. Equipment currently installed in the new center includes four Varian 2100 SC linear accelerators equipped with 120 leaf MMLC and aSi Portal Vision panels with DS arms. Simulation includes one Varian Ximatron CDX and one Philips(Picker/Marconi) PQ 5000 CT-Simulator with AQSim. Brachytherapy equipment includes one Nucletron HDR and LDR unit. Also installed in the department is an Elekta Gamma Knife Model-C unit, Varian ZMED couch mount SRS system, Philips ADAC RTP, Varian Eclipse RTP, Varian MMS RTP, and Nucletron Plato RTP. Ancillary equipment includes Siemens ultrasound Adara and Sonoline Prima units. Future plans....one GE CT-PET Simulator unit and one GE 3T MRI unit are scheduled to be installed in the department the early part of '05. Future improvements for brachytherapy include a Nucletron IBU imaging unit. Job Specifications: Education: B.S. Degree in Clinical Engineering, two years experience in repair and maintenance of medical accelerators and oncology treatment equipment. Experience: A.S. Degree in Clinical Engineering and four years experience in repair and maintenance of medical accelerators and oncology treatment equipment. Education/Training with six years experience with medical accelerators and oncology treatment equipment with at least three years of computer hardware and software experience. Skills and Qualifications: Electronic, electro-mechanical, high vacuum, pneumatic, hydro-cooling skills. Schematic and flow diagram interpretation. Radiation and electrical safety procedures and knowledge. Communication and interpersonal skills. Comprehensive computer hardware and software skills. Special Characteristics: Must have comprehensive troubleshooting skills related to the field of accelerator technology. =20 To learn more about this exciting opportunity, please visit us at our website www.wfubmc.edu and use our easy-to-complete online application or email your resume to erecruit@wfubmc.edu . EOE Tim Cullen NCBH, Rad Onc Dept 336-713-6690=20 --Boundary_(ID_aJcKhRsMSaFTBz8Rb/e+Yg) Content-type: text/html; charset=US-ASCII Content-transfer-encoding: quoted-printable Message
Wake Forest University Baptist Medical Center currently has = an=20 opening for a Radiation Oncology Engineer.

The radiation = oncology department has recently moved into a new outpatient = comprehensive=20 cancer center located adjacent to the main campus. Equipment currently = installed=20 in the new center includes four Varian 2100 SC linear accelerators = equipped with=20 120 leaf MMLC and aSi Portal Vision panels with DS arms. Simulation = includes one=20 Varian Ximatron CDX and one Philips(Picker/Marconi) PQ 5000 CT-Simulator = with=20 AQSim. Brachytherapy equipment includes one Nucletron HDR and LDR unit. = Also=20 installed in the department is an Elekta Gamma Knife Model-C unit, = Varian ZMED=20 couch mount SRS system, Philips ADAC RTP, Varian Eclipse RTP, Varian MMS = RTP,=20 and Nucletron Plato RTP. Ancillary equipment includes Siemens ultrasound = Adara=20 and Sonoline Prima units. Future plans....one GE CT-PET Simulator unit = and one=20 GE 3T MRI unit are scheduled to be installed in the department the early = part=20 of '05. Future improvements for brachytherapy include a Nucletron = IBU=20 imaging unit.

Job=20 Specifications:

Education:

B.S. Degree in = Clinical=20 Engineering, two years experience in repair and maintenance of medical=20 accelerators and oncology treatment=20 equipment.

Experience:

A.S. Degree in Clinical = Engineering=20 and four years experience in repair and maintenance of medical = accelerators and=20 oncology treatment equipment.

Education/Training with six years=20 experience with medical accelerators and oncology treatment equipment = with at=20 least three years of computer hardware and software = experience.

Skills=20 and Qualifications:

Electronic, electro-mechanical, high = vacuum,=20 pneumatic, hydro-cooling skills.
Schematic and flow diagram=20 interpretation.
Radiation and electrical safety procedures and=20 knowledge.
Communication and interpersonal skills.
Comprehensive = computer=20 hardware and software skills.

Special = Characteristics:

Must=20 have comprehensive troubleshooting skills related to the field of = accelerator=20 technology.

To learn more about this = exciting=20 opportunity, please visit us at our website www.wfubmc.edu and=20 use our easy-to-complete online application or email your resume to = erecruit@wfubmc.edu<= /A>. =20 EOE

Tim Cullen
NCBH, Rad Onc Dept
336-713-6690=20

=00 --Boundary_(ID_aJcKhRsMSaFTBz8Rb/e+Yg)-- From VM Wed Oct 13 07:59:00 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3805" "Tuesday" "12" "October" "2004" "16:54:23" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "103" "Re: 21EX GFIL when moding up 6X" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5H00F0XU4MDV@hubbard.azu.nl>; Wed, 13 Oct 2004 00:50:52 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101300504909745 ; Wed, 13 Oct 2004 00:50:49 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA24044; Wed, 13 Oct 2004 00:50:57 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma024016; Wed, 13 Oct 2004 00:50:44 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id QAA19406 for linac-eng-list; Tue, 12 Oct 2004 16:03:25 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id QAA19402 for ; Tue, 12 Oct 2004 16:03:23 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.10005172; Tue, 12 Oct 2004 16:52:24 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i9CKqJfZ016317; Tue, 12 Oct 2004 16:52:24 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F2B.0072D89F ; Tue, 12 Oct 2004 16:54:25 -0400 Message-id: <85256F2B.0072D7D5.00@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 From: Randy.McVittie@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: Stephen Jordan Cc: linac-eng@plato.aristotle.net Subject: Re: 21EX GFIL when moding up 6X Date: Tue, 12 Oct 2004 16:54:23 -0400 I don't think it is your gun. We don't use TBI 6x on any of our machines so my advice may or may not be useful. Your GUNI value doubled, so did your GUNV? That isn't the problem, the problem is that your GUNV is much larger now than it was before. The circuit for the filament is drawn in a very complicated manner but it is basically a 120V to a transformer connected in series with a TRIAC The transformer is mounted on the Hot Deck Backplane , and the TRIAC is on the FILAMENT POWER SUPPLY PCB. The secondary of the transformer goes through a polyfuse - resettable fuse RT1 and then the AC is rectified and filtered. All of these components are on the Hot Deck Backplane. There is also a 0.1 ohm resistor used to monitor the filament current, check connections at J6-14A to J6-25A The gun filament should be about 1.5 ohms. It normally operates at 5.4VDC and 3.5Amps. If the polyfuse goes open circuit the Gun Controller will give you an error message - I don't recall what it is. We had this problem on a 6 year old machine a few months back. That is unusual that your GUNV changed value. The programming level for GUNV comes from your GUN CONTROLLER, you can swap GUN CONTROLLERS as long as you program the microcontroller for the same values as the original card or you can take the microcontroller from the original board and put it in your replacement board. Did anything else get changed recently? What does your GUN I pulse look like? It should be a relatively square pulse about 5 microseconds wide (non-Portal Vision Machines) and about 3.5 mircroseconds for a Portal vision machine. The amplitude of the GUN I PULSE should correspond with a change in the GUNI value displayed in your Analog Meters Screen. GUNI on your PROGRAM BOARD is an analog voltage from 0V to -15V. it then goes to the Aux Electronics backplane P32 pin 9 then out on J45 pin 36 it then goes to the Gantry Patch Panel P1-36 out on J16-3 to the GUN DRIVER Backplane P1-3 and out on J7-21C to the GUN CONTROLLER PCB where it is buffered/amplified by U13 and then digitized by U10 Keep us posted with your results. Randy McVittie London Health Science Centre London Regional Cancer Program "Stephen Jordan" on 2004-10-12 10:13:50 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: 21EX GFIL when moding up 6X c3, SN 1629: When Tx a 6X TBI yesterday, our EX went down with a GFIL I/L. The 6X GUNI (normally 35) was 71, and the GUNV (normally -5) was -12 on the service analog meters. The Gun Controller error masg flashed "FIL I +", Filament voltage to the gun was not present. When I unplugged the gun, filament V returned. (uh-oh) Plug the gun leads back in, FIL V goes back to 0vdc, error returns on the Gun Ctrlr.The bottom two leds on the Gun LVPS would go out, indicating a crowbar. I troubleshot the error to the FIL P.S., replaced the PCB, and the filament V returned to normal, gun ctrlr error cleared. Hooooray. I'm going home after checkout....wrong. I ran every energy for 200 mu, all indicators normal. The instant I moded up 6X, I'm back to square one.(!) I have since changed the Gun Controller, as well. Sorry if I'm not terribly articulate; It has been a long night. Any ideas? Sounds like a bad gun, but I"ve not experienced one before. Thanks in advance, Steve Jordan UAB Rad Physics ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From VM Wed Oct 13 07:59:00 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["6297" "Tuesday" "12" "October" "2004" "16:11:42" "-0700" "JamesR.Wilson@providence.org" "JamesR.Wilson@providence.org" nil "118" "Varian CL2100EX Losing Water" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5I000YT0E0PS@hubbard.azu.nl>; Wed, 13 Oct 2004 03:06:02 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101303055911099 ; Wed, 13 Oct 2004 03:05:59 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id DAA00870; Wed, 13 Oct 2004 03:06:07 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma000856; Wed, 13 Oct 2004 03:06:00 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id SAA20719 for linac-eng-list; Tue, 12 Oct 2004 18:12:16 -0500 (CDT) Received: from phsornt422.or.providence.org (phsor-nat2.providence.org [170.220.2.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id SAA20715 for ; Tue, 12 Oct 2004 18:12:14 -0500 (CDT) Received: from PickupDirectory by phsornt422.or.providence.org with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id RBFQMY82; Tue, 12 Oct 2004 16:11:55 -0700 Received: from phsorcon06.or.providence.org ([170.220.78.187]) by phsornt422.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Tue, 12 Oct 2004 16:11:54 -0700 Received: from phsormsg02.or.providence.org ([170.220.75.191]) by phsorcon06.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Tue, 12 Oct 2004 16:11:43 -0700 Message-id: <0838AEB7ABB0C04481781A84D6DE7C6C19F432@phsormsg02.or.providence.org> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_h6HBv55/IW/ZseVCQFAKjg)" Importance: normal Precedence: bulk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Content-Class: urn:content-classes:message Thread-Topic: Varian CL2100EX Losing Water thread-index: AcSwsNX7DHf8R0XyTeWzM9AJAjuX8w== X-OriginalArrivalTime: 12 Oct 2004 23:11:43.0187 (UTC) FILETIME=[D673EA30:01C4B0B0] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JamesR.Wilson@providence.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Varian CL2100EX Losing Water Date: Tue, 12 Oct 2004 16:11:42 -0700 This is a multi-part message in MIME format. --Boundary_(ID_h6HBv55/IW/ZseVCQFAKjg) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable A few weeks ago I posted a problem stating that we were losing water on our linac and had not figured out where it was going. I apologize to all for not getting back to you about this problem. As many of us do, I have numerous other duties besides the linacs in the hospital. When we started hearing about the problem from the therapists, we looked at all the potential spots for water leakage. This includes 2 looks at the pit, which I was able to get a very good look at as well as getting my hands underneath the cables to feel for water. There was no water in the pit or any where else. Also the problem appeared to be intermittent. We could go days without losing any. We finally changed the heat exchanger, even though the symptoms did not match any previous exchanger failures I have seen over the past 20 years. After a couple of days it was evident that we were still losing water. I had mentioned to the therapists that we had slopped some water on the carpet during the exchange and that they should not be alarmed by that. Some colleagues suggested that the klystron solenoid could be taking up the water. I was considering the suggestion to put a small drain hole in the bottom. About 4 days after the swap of the exchanger I told the therapists that I was going to be looking at the machine after hours. They commented that the floor was still QUITE wet after our previous work. I knew that was wrong. We went in to the stand again and the pit had water all over in it. There was a visible leak from the filter canister, dripping at a steady rate. About 1 month prior to the complaint I had serviced the water on the machine. When we heard there was a leak, the filter canister was high up on my suspect list. Neither I nor our other technician had seen or felt any water on or under the canister at any time until now. We removed the canister and fixed my self induced error with the gasket. One section had failed to seat properly and was sort of "flattened out". How it was able to leak intermittently and sometimes fairly profusely is still a mystery to me. I hear that Burger King is hiring!! Thanks to all, Jim Wilson Clinical Engineering=20 Providence Health Systems DISCLAIMER: This message is intended for the sole use of the addressee, and may = contain information that is privileged, confidential and exempt from = disclosure under applicable law. If you are not the 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 this message. --Boundary_(ID_h6HBv55/IW/ZseVCQFAKjg) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Varian CL2100EX Losing Water

A few weeks ago I posted a problem = stating that we were losing water on our linac and had not figured out = where it was going. I apologize to all for not getting back to you about = this problem. As many of us do, I have numerous other duties besides the = linacs in the hospital. When we started hearing about the problem from = the therapists, we looked at all the potential spots for water leakage. = This includes 2 looks at the pit, which I was able to get a very good = look at as well as getting my hands underneath the cables to feel for = water. There was no water in the pit or any where else. Also the problem = appeared to be intermittent. We could go days without losing any. We = finally changed the heat exchanger, even though the symptoms did not = match any previous exchanger failures I have seen over the past 20 = years. After a couple of days it was evident that we were still losing = water. I had mentioned to the therapists that we had slopped some water = on the carpet during the exchange and that they should not be alarmed by = that. Some colleagues suggested that the klystron solenoid could be = taking up the water. I was considering the suggestion to put a small = drain hole in the bottom. About 4 days after the swap of the exchanger I = told the therapists that I was going to be looking at the machine after = hours. They commented that the floor was still QUITE wet after our = previous work. I knew that was wrong. We went in to the stand again and = the pit had water all over in it. There was a visible leak from the = filter canister, dripping at a steady rate. About 1 month prior to the = complaint I had serviced the water on the machine. When we heard there = was a leak, the filter canister was high up on my suspect list. = Neither I nor our other technician had seen or felt any water on or = under the canister at any time until now. We removed the canister and = fixed my self induced error with the gasket. One section had failed to = seat properly and was sort of "flattened out". How it was able = to leak intermittently and sometimes fairly profusely is still a mystery = to me. I hear that Burger King is hiring!! Thanks to all,

Jim Wilson
Clinical Engineering
Providence Health Systems

DISCLAIMER:
This message is intended for the sole use of = the addressee, and may contain information that is privileged, = confidential and exempt from disclosure under applicable law. If you are = not the 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 this = message. --Boundary_(ID_h6HBv55/IW/ZseVCQFAKjg)-- From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["483" "Wednesday" "13" "October" "2004" "14:54:20" "+1000" "Vince Reynolds" "VReynold@doh.health.nsw.gov.au" nil "15" "maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5I00IIEYQEQD@hubbard.azu.nl>; Wed, 13 Oct 2004 15:27:51 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101315274830865 ; Wed, 13 Oct 2004 15:27:48 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id PAA01888; Wed, 13 Oct 2004 15:27:57 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma001791; Wed, 13 Oct 2004 15:27:16 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA28328 for linac-eng-list; Wed, 13 Oct 2004 05:25:15 -0500 (CDT) Received: from mailscan.nmmn.com (mailscan.nmmn.net [195.124.48.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA28324 for ; Wed, 13 Oct 2004 05:25:12 -0500 (CDT) Received: by mailscan.nmmn.com (Postfix, from userid 0) id 997B313135F; Wed, 13 Oct 2004 10:24:52 +0000 (UTC) Received: from mailscan.nmmn.com (unknown [127.0.0.1]) by mailscan3 (Postfix) with ESMTP id 8CEBD11D580 for ; Wed, 13 Oct 2004 06:12:48 +0000 (UTC) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by mailscan.nmmn.com (Postfix) with ESMTP id DC94F1312EE for ; Wed, 13 Oct 2004 08:12:47 +0200 (CEST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA24749 for linac-eng-list; Tue, 12 Oct 2004 23:55:22 -0500 (CDT) 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 XAA24745 for ; Tue, 12 Oct 2004 23:55:19 -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; Wed, 13 Oct 2004 14:55:19 +1000 Received: from MXSCAN ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.2-X27 #30538) with ESMTP id <01LFZJ8KGY3A00163G@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Wed, 13 Oct 2004 14:54:35 -0500 (EST) Received: from DOH_HUB-MTA by dohprimo.ccf.health.nsw.gov.au with Novell_GroupWise; Wed, 13 Oct 2004 14:54:35 +1000 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 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 From: Vince Reynolds Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: maintenance software Date: Wed, 13 Oct 2004 14:54:20 +1000 Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2416" "Wednesday" "13" "October" "2004" "10:21:27" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "74" "Re: maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J0087W5MS48@hubbard.azu.nl>; Wed, 13 Oct 2004 17:56:57 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101317565103184 ; Wed, 13 Oct 2004 17:56:51 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id RAA25894; Wed, 13 Oct 2004 17:57:00 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa25832; Wed, 13 Oct 2004 17:56:32 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA00510 for linac-eng-list; Wed, 13 Oct 2004 09:20:35 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA00506 for ; Wed, 13 Oct 2004 09:20:33 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.10034314; Wed, 13 Oct 2004 10:19:28 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i9DEJQfZ017884; Wed, 13 Oct 2004 10:19:28 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F2C.004EDF11 ; Wed, 13 Oct 2004 10:21:29 -0400 Message-id: <85256F2C.004EDEB7.00@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 From: Randy.McVittie@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: Vince Reynolds Cc: linac-eng@plato.aristotle.net Subject: Re: maintenance software Date: Wed, 13 Oct 2004 10:21:27 -0400 The market is called CMMS - Computerized Maintenance Management Systems. Most of the software products are geared towards big institutions/manufacturing plants etc. They have scheduling, parts ordering, downtime stats etc. But they cost anywhere from several hundred dollars per copy to thousands depending on the complexity. I haven't seen any maintenance software that is commercially available that tracks the sorts of things that someone servicing radiation therapy equipment would be interested in. There are several vendors of software that write databases for tracking vehicles etc, I have seen a couple of custom built database projects that work, but don't have the parts ordering side that the commercial ones do. Our host hospital uses a program call WOSYST, I am waiting to get a copy of it. I have downloaded a trial version of COGZ that I think was not too bad of a system. I downloaded or received several copies of other software that I had little or no luck installing on my computer. If anyone has come across a good solution I'd love to hear about it. Paper is still hard to beat, until you try to search through it for something that might have happened 5 years ago. (I have 9 High Energy linacs, 7 MLC and 8PV systems to keep track of so I am looking to go electronic on the records here) Randy Vince Reynolds on 2004-10-13 00:54:20 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: maintenance software Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["483" "Wednesday" "13" "October" "2004" "14:54:20" "+1000" "Vince Reynolds" "VReynold@doh.health.nsw.gov.au" nil "15" "maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J005F85TLBK@hubbard.azu.nl>; Wed, 13 Oct 2004 18:01:02 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101318005803274 ; Wed, 13 Oct 2004 18:00:58 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA26419; Wed, 13 Oct 2004 18:01:06 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmab26403; Wed, 13 Oct 2004 18:00:40 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA00246 for linac-eng-list; Wed, 13 Oct 2004 09:02:26 -0500 (CDT) Received: from HSCSEMAILFE1.hscs.virginia.edu (hscsemailfe1.hscs.Virginia.EDU [137.54.102.18]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA00242 for ; Wed, 13 Oct 2004 09:02:24 -0500 (CDT) Received: from HSCSEMAIL1.hscs.virginia.edu ([128.143.165.13]) by HSCSEMAILFE1.hscs.virginia.edu with Microsoft SMTPSVC(6.0.3790.0); Wed, 13 Oct 2004 10:04:47 -0400 Received: from mail pickup service by HSCSEMAIL1.hscs.virginia.edu with Microsoft SMTPSVC; Wed, 13 Oct 2004 10:01:51 -0400 Received: from HSCSEMAILFE1.hscs.virginia.edu ([137.54.102.18]) by HSCSEMAIL1.hscs.virginia.edu with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 09:32:59 -0400 Received: from hscsscrub2.hscs.virginia.edu ([128.143.176.136]) by HSCSEMAILFE1.hscs.virginia.edu with Microsoft SMTPSVC(6.0.3790.0); Wed, 13 Oct 2004 08:52:29 -0400 Received: from plato.aristotle.net ([206.66.224.2]) by 128.143.176.136 with trend_isnt_name_B; Wed, 13 Oct 2004 08:54:52 -0400 Received: by plato.aristotle.net (8.9.0/8.9.0) id FAA28328 for linac-eng-list; Wed, 13 Oct 2004 05:25:15 -0500 (CDT) Received: from mailscan.nmmn.com (mailscan.nmmn.net [195.124.48.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id FAA28324 for ; Wed, 13 Oct 2004 05:25:12 -0500 (CDT) Received: by mailscan.nmmn.com (Postfix, from userid 0) id 997B313135F; Wed, 13 Oct 2004 10:24:52 +0000 (UTC) Received: from mailscan.nmmn.com (unknown [127.0.0.1]) by mailscan3 (Postfix) with ESMTP id 8CEBD11D580 for ; Wed, 13 Oct 2004 06:12:48 +0000 (UTC) Received: from plato.aristotle.net (plato.aristotle.net [206.66.224.2]) by mailscan.nmmn.com (Postfix) with ESMTP id DC94F1312EE for ; Wed, 13 Oct 2004 08:12:47 +0200 (CEST) Received: by plato.aristotle.net (8.9.0/8.9.0) id XAA24749 for linac-eng-list; Tue, 12 Oct 2004 23:55:22 -0500 (CDT) 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 XAA24745 for ; Tue, 12 Oct 2004 23:55:19 -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; Wed, 13 Oct 2004 14:55:19 +1000 Received: from MXSCAN ([203.5.108.56]) by health.nsw.gov.au (PMDF V6.2-X27 #30538) with ESMTP id <01LFZJ8KGY3A00163G@health.nsw.gov.au> for linac-eng@plato.aristotle.net; Wed, 13 Oct 2004 14:54:35 -0500 (EST) Received: from DOH_HUB-MTA by dohprimo.ccf.health.nsw.gov.au with Novell_GroupWise; Wed, 13 Oct 2004 14:54:35 +1000 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.5.1 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 7bit Precedence: bulk X-OriginalArrivalTime: 13 Oct 2004 12:52:29.0765 (UTC) FILETIME=[7FB35F50:01C4B123] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Vince Reynolds Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: maintenance software Date: Wed, 13 Oct 2004 14:54:20 +1000 Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2595" "Wednesday" "13" "October" "2004" "10:19:09" "-0400" "neville.wiles@spectrum-health.org" "neville.wiles@spectrum-health.org" nil "60" "2100c Collimator drift in am during warm-up." "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J008BN5UP48@hubbard.azu.nl>; Wed, 13 Oct 2004 18:01:44 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101318013603289 ; Wed, 13 Oct 2004 18:01:36 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA26486; Wed, 13 Oct 2004 18:01:45 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma026424; Wed, 13 Oct 2004 18:01:07 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA00390 for linac-eng-list; Wed, 13 Oct 2004 09:19:23 -0500 (CDT) Received: from mail.spectrum-health.org (mail.spectrum-health.org [167.73.110.31]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id JAA00386 for ; Wed, 13 Oct 2004 09:19:22 -0500 (CDT) Received: from DCMSMTA01.spectrum-health.org ([10.3.29.53]) by mail.spectrum-health.org (SMSSMTP 4.0.0.59) with SMTP id M2004101310195915408 for ; Wed, 13 Oct 2004 10:19:59 -0400 Received: by DCMSMTA01.spectrum-health.org with Internet Mail Service (5.5.2658.3) id <43N58BA3>; Wed, 13 Oct 2004 10:19:03 -0400 Message-id: <69CF5FC5BF741642A2F1889E6519E2F864CF0B@dcmsmsg03.spectrum-health.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2658.3) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_M0o9a4fjRocBiDIq7DETYQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: neville.wiles@spectrum-health.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: 2100c Collimator drift in am during warm-up. Date: Wed, 13 Oct 2004 10:19:09 -0400 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_M0o9a4fjRocBiDIq7DETYQ) Content-type: text/plain; charset=iso-8859-1 Hello, I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this. Thanking anyone in advance, Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 --Boundary_(ID_M0o9a4fjRocBiDIq7DETYQ) Content-type: text/html; charset=iso-8859-1

Hello,

I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this.

Thanking anyone in advance,

Neville Wiles

Spectrum Health

Grand Rapids, MI

616 391-3639

--Boundary_(ID_M0o9a4fjRocBiDIq7DETYQ)-- From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["752" "Wednesday" "13" "October" "2004" "10:26:55" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "24" "Job Posting" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J008LK6ER48@hubbard.azu.nl>; Wed, 13 Oct 2004 18:13:46 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101318134303540 ; Wed, 13 Oct 2004 18:13:43 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA27786; Wed, 13 Oct 2004 18:13:51 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmab27744; Wed, 13 Oct 2004 18:13:19 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA00648 for linac-eng-list; Wed, 13 Oct 2004 09:27:13 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA00641 for ; Wed, 13 Oct 2004 09:27:11 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.10034634; Wed, 13 Oct 2004 10:24:57 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i9DEOrfZ018470; Wed, 13 Oct 2004 10:24:56 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F2C.004F6087 ; Wed, 13 Oct 2004 10:27:00 -0400 Message-id: <85256F2C.004F5ED7.00@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 From: Randy.McVittie@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, Canadalist@yahoogroups.com Subject: Job Posting Date: Wed, 13 Oct 2004 10:26:55 -0400 Hello List: There is a job openning at our Hospital for an Electronics Technologist in the Radiation Therapy program. Here is the link to the jobsite for anyone interested. Randy McVittie http://jobs.workopolis.com/jobshome/db/lhsc.job_posting?pi_job_id=7092816&pi_search_id=406287051&pi_sort=POST_DATE&pi_curjob=2&pi_maxjob=27 ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2544" "Wednesday" "13" "October" "2004" "10:57:50" "-0400" "Steve.Gibson@lrcc.on.ca" "Steve.Gibson@lrcc.on.ca" nil "85" "HD A/D+ Interlocks" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00B2B7BMOG@hubbard.azu.nl>; Wed, 13 Oct 2004 18:33:30 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101318332603940 ; Wed, 13 Oct 2004 18:33:26 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA29838; Wed, 13 Oct 2004 18:33:34 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmab29812; Wed, 13 Oct 2004 18:33:25 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id JAA01361 for linac-eng-list; Wed, 13 Oct 2004 09:56:45 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA01357 for ; Wed, 13 Oct 2004 09:56:43 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.10036269; Wed, 13 Oct 2004 10:55:43 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i9DEthfZ022419 for ; Wed, 13 Oct 2004 10:55:43 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F2C.00523375 ; Wed, 13 Oct 2004 10:57:51 -0400 Message-id: <85256F2C.00523331.00@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 From: Steve.Gibson@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: HD A/D+ Interlocks Date: Wed, 13 Oct 2004 10:57:50 -0400 Dear List, As a follow up to the HD A/D+ GFIL interlocks we were getting a few weeks back. The problem turned out to be an arc through the insulation of the gun lead as evidenced by a nice black hole in the insulation. We insulated the lead around the arc spot using 3M 2155 Rubber Splicing Tape followed by a layer of standard electrical tape followed by a layer of high voltage heat shrink. Not the most elegant but considering the alternative ! It has been nearly 2 months now and no more GFIL's. Thanks to Tom Feuerstake for guessing this one correctly. Steve Gibson London Regional Cancer Centre London, Ontario Canada ---------------------- Forwarded by Steve Gibson/Lrcc on 10/13/2004 10:46 AM --------------------------- Steve Gibson 08/27/2004 11:11 AM To: linac-eng@plato.aristotle.net cc: Subject: HD A/D+ Interlocks Hello List, For the past few months we have been getting intermittent GFIL interlocks on one of our C/D machines. Gun controller indicates HD A/D+ error = Hot Deck A/D Converter Over Self Test Failure. This causes the hot deck and high voltage power supplies to turn off on the cold deck side but master power stays up. Usually cycling the power supply on the cold deck side will clear the interlock. Over the weeks all the following have been replaced with new components to no avail : 1. A/D chip TLC1541IN (U2) on Hot Deck Filament Power Supply Board 2. Hot Deck Filament Power Supply Board 3. Hot Deck Gun Driver Pulser Board 4. Hot Deck Backplane 5. Hot Deck Power Supply 6. Hot Deck Cooling Fan 7. Fiber Optic cable bundle from Cold Deck to Hot Deck 8. Fiber Optic Interface Board on Cold Deck 9. Gun Controller Card 10. Cold Deck Power Supply Board Typically, the machine will run fine for a few days or a week and then the GFIL shows up again. This morning we had a GFIL for the first time on our brand new 21EX and it was also HD A/D+. Has anyone seen this before or have any suggestions on the cause ... we are quickly running out of ideas on this one. Thanks in advance, Steve Gibson London Regional Cancer Centre London, Ontario Canada ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["4176" "Wednesday" "13" "October" "2004" "10:58:01" "-0400" "Randy.McVittie@lrcc.on.ca" "Randy.McVittie@lrcc.on.ca" nil "100" "Re: 2100c Collimator drift in am during warm-up." "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00BC67WCOG@hubbard.azu.nl>; Wed, 13 Oct 2004 18:45:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101318455104114 ; Wed, 13 Oct 2004 18:45:51 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id SAA00733; Wed, 13 Oct 2004 18:46:00 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmad00705; Wed, 13 Oct 2004 18:45:43 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id JAA01376 for linac-eng-list; Wed, 13 Oct 2004 09:57:05 -0500 (CDT) Received: from lhsc.on.ca (ironmail.lhsc.on.ca [142.158.10.115]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id JAA01372 for ; Wed, 13 Oct 2004 09:57:03 -0500 (CDT) Received: from ([142.158.15.65]) by ironmail.lhsc.on.ca with ESMTP id KP-VXK87.10036290; Wed, 13 Oct 2004 10:55:59 -0400 Received: from mail.lrcc.on.ca (mail.lrcc.on.ca [142.158.120.242]) by mailhub.lhsc.on.ca (8.12.10+Sun/8.12.10) with SMTP id i9DEtxfZ022510; Wed, 13 Oct 2004 10:55:59 -0400 (EDT) Received: by mail.lrcc.on.ca(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 85256F2C.00523959 ; Wed, 13 Oct 2004 10:58:06 -0400 Message-id: <85256F2C.005237E3.00@mail.lrcc.on.ca> MIME-version: 1.0 Content-type: MULTIPART/MIXED; BOUNDARY="Boundary_(ID_fB2cXlEh9ner58aUTLY9Tg)" Precedence: bulk X-Lotus-FromDomain: LRCC X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Randy.McVittie@lrcc.on.ca Sender: owner-linac-eng@plato.aristotle.net To: neville.wiles@spectrum-health.org Cc: linac-eng@plato.aristotle.net Subject: Re: 2100c Collimator drift in am during warm-up. Date: Wed, 13 Oct 2004 10:58:01 -0400 --Boundary_(ID_fB2cXlEh9ner58aUTLY9Tg) Content-type: text/plain; charset=us-ascii Content-disposition: inline Does the machine have a MLC? If it does the slip clutch on the collimator motor may be loose (We just had that last week on a machine) Are your power supplies drifting? Is it happening at a particular gantry angle, like 90 degrees (IEC) if so it could be a cable in your gantry windup lots of possibilities, let us know what you find Randy neville.wiles@spectrum-health.org on 2004-10-13 10:19:09 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: 2100c Collimator drift in am during warm-up. Hello, I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this. Thanking anyone in advance, Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. --Boundary_(ID_fB2cXlEh9ner58aUTLY9Tg) Content-type: text/html; name=att1.htm Content-description: Internet HTML Content-disposition: attachment; filename=att1.htm Content-transfer-encoding: base64 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgSFRUUC1FUVVJVj0iQ29udGVudC1UeXBlIiBDT05U RU5UPSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9aXNvLTg4NTktMSI+DQoNCg0KPE1FVEEgY29udGVudD0i TVNIVE1MIDYuMDAuMjgwMC4xMTcwIiBuYW1lPUdFTkVSQVRPUj48L0hFQUQ+DQo8Qk9EWT4NCjxE SVY+PEZPTlQgZmFjZT1BcmlhbCBzaXplPTI+PFNQQU4gDQpjbGFzcz0wNDU0MzA4MTQtMTMxMDIw MDQ+SGVsbG8sPC9TUEFOPjwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1BcmlhbCBzaXpl PTI+PFNQQU4gDQpjbGFzcz0wNDU0MzA4MTQtMTMxMDIwMDQ+PC9TUEFOPjwvRk9OVD4mbmJzcDs8 L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1BcmlhbCBzaXplPTI+PFNQQU4gY2xhc3M9MDQ1NDMwODE0 LTEzMTAyMDA0PkkgaGF2ZSBhIDIxMDBjLTIgDQombmJzcDtTL04gNDIzLiZuYnNwOyZuYnNwO1Ro ZSB3YXJtLXVwIHBlcnNvbiBrZWVwcyBjb21wbGFpbmluZyB0aGF0IHRoZSBjb2wuIA0KZHJpZnRz IHdpdGggbm8gaW5wdXQgZHVyaW5nIHdhcm0tdXAsIHVwIHRvIGEgY291cGxlIG9mIGRlZ3JlZXMu Jm5ic3A7QWxzbyANCnNvbWV0aW1lcyB0aGUgamF3cyBjaGFuZ2UgYWxzby4mbmJzcDsgVGhlIG1v cm5pbmcsIHdoZW4gSSBjYW1lIGluIHRoZXJlIHdhcyBubyANCmRyaWZ0LCBhbmQgdGhlIHRoZXJh cGlzdHMgZG9uJ3Qgc2VlIGFueSBlaXRoZXIuJm5ic3A7IFNvIGZhciBJJ3ZlIHJlc2VhdGVkIHRo ZSANCnBjYidzIGluIHRoZSBjb25zb2xlLCByZXBsYWNlZCB0aGUgcmlnaHQgaGFuZCBwZW5kYW50 IHdpdGggYSBuZXcgb25lIGFuZCB0aGVuIA0KdGhlIGxlZnQgd2l0aCB0aGUgcmlnaHQgd2hlbiB0 aGUgInByb2JsZW0iIHJlb2NjdXJlZC4mbmJzcDsgQWxzbyB0aGUgDQpjYWJsZXMuJm5ic3A7Jm5i c3A7IFNvLCBJIHdvdWxkIHRoYW5rIGFueW9uZSBpZiB0aGV5IGhhdmUgYW55IElkZWEgb24gDQp0 aGlzLjwvU1BBTj48L0ZPTlQ+PC9ESVY+DQo8RElWPjxGT05UIGZhY2U9QXJpYWwgc2l6ZT0yPjxT UEFOIA0KY2xhc3M9MDQ1NDMwODE0LTEzMTAyMDA0PjwvU1BBTj48L0ZPTlQ+Jm5ic3A7PC9ESVY+ DQo8RElWPjxGT05UIGZhY2U9QXJpYWwgc2l6ZT0yPjxTUEFOIGNsYXNzPTA0NTQzMDgxNC0xMzEw MjAwND5UaGFua2luZyBhbnlvbmUgaW4gDQphZHZhbmNlLDwvU1BBTj48L0ZPTlQ+PC9ESVY+DQo8 RElWPjxGT05UIGZhY2U9QXJpYWwgc2l6ZT0yPjxTUEFOIA0KY2xhc3M9MDQ1NDMwODE0LTEzMTAy MDA0PjwvU1BBTj48L0ZPTlQ+Jm5ic3A7PC9ESVY+DQo8RElWPjxGT05UIGZhY2U9QXJpYWwgc2l6 ZT0yPjxTUEFOIGNsYXNzPTA0NTQzMDgxNC0xMzEwMjAwND4NCjxESVY+PEZPTlQgZmFjZT1Bcmlh bCBzaXplPTI+TmV2aWxsZSBXaWxlczwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1Bcmlh bCBzaXplPTI+U3BlY3RydW0gSGVhbHRoIDwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFjZT1B cmlhbCBzaXplPTI+R3JhbmQgUmFwaWRzLCBNSTwvRk9OVD48L0RJVj4NCjxESVY+PEZPTlQgZmFj ZT1BcmlhbCBzaXplPTI+NjE2IA0KMzkxLTM2Mzk8L0ZPTlQ+PC9ESVY+PC9TUEFOPjwvRk9OVD48 L0RJVj48L0JPRFk+PC9IVE1MPg0KDQo= --Boundary_(ID_fB2cXlEh9ner58aUTLY9Tg)-- From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1631" "Wednesday" "13" "October" "2004" "10:15:41" "-0500" "Lockhart, Ryan" "LockhartR@covhealth.com" nil "52" "Varian pen digitizer" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00BVN8W0OG@hubbard.azu.nl>; Wed, 13 Oct 2004 19:07:13 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101319071104406 ; Wed, 13 Oct 2004 19:07:11 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id TAA02330; Wed, 13 Oct 2004 19:07:20 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002316; Wed, 13 Oct 2004 19:06:50 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id KAA02204 for linac-eng-list; Wed, 13 Oct 2004 10:16:16 -0500 (CDT) Received: from chs-exchsv2.covhealth.com (exchangesvr.covhealth.com [199.250.66.2]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id KAA02198 for ; Wed, 13 Oct 2004 10:16:15 -0500 (CDT) Received: by CHS-EXCHSV2 with Internet Mail Service (5.5.2653.19) id ; Wed, 13 Oct 2004 10:15:42 -0500 Message-id: MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_mPFI4KizNwmoaOoRdXWulA)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Lockhart, Ryan" Sender: owner-linac-eng@plato.aristotle.net To: 'clinac listserve' Subject: Varian pen digitizer Date: Wed, 13 Oct 2004 10:15:41 -0500 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_mPFI4KizNwmoaOoRdXWulA) Content-type: text/plain; CHARSET=US-ASCII Has anybody had problems with their pen digitizer? We have gone through 2 pens in the last 6 months and it's acting flaky again. Right now it won't calibrate and if you try to digitize an image, it jumps all over every 3 or 4 points. Does anybody have any theories? Thanks. Ryan Lockhart Covenant Medical Center Waterloo, Iowa 319-272-8058 --Boundary_(ID_mPFI4KizNwmoaOoRdXWulA) Content-type: text/html Content-transfer-encoding: quoted-printable Varian pen digitizer

Has anybody had problems with their = pen digitizer? We have gone through 2 pens in the last 6 months = and it's acting flaky again. Right now it won't calibrate and if = you try to digitize an image, it jumps all over every 3 or 4 = points. Does anybody have any theories?

Thanks.

Ryan Lockhart
Covenant Medical Center
Waterloo, Iowa
319-272-8058

--Boundary_(ID_mPFI4KizNwmoaOoRdXWulA)-- From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3514" "Wednesday" "13" "October" "2004" "11:27:42" "-0500" "Tyson Long" "TLong@mercycare.org" nil "98" "RE: maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00EW0BQPYU@hubbard.azu.nl>; Wed, 13 Oct 2004 20:08:55 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101320085305359 ; Wed, 13 Oct 2004 20:08:53 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA07539; Wed, 13 Oct 2004 20:09:01 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma007509; Wed, 13 Oct 2004 20:08:56 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id LAA04219 for linac-eng-list; Wed, 13 Oct 2004 11:28:16 -0500 (CDT) Received: from mercy-webappliance.mercycare.org (host-67-128-216-250.mercycare.org [67.128.216.250] (may be forged)) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA04215 for ; Wed, 13 Oct 2004 11:28:14 -0500 (CDT) Received: from unknown(67.128.216.250) by mercy-webappliance.mercycare.org via csmap id b1eb3174_1d3d_11d9_81bf_003048245f6f_8549; Wed, 13 Oct 2004 12:31:20 -0500 (CDT) Message-id: MIME-version: 1.0 Content-type: text/plain; CHARSET=US-ASCII Content-transfer-encoding: 7bit Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6249.0 content-class: urn:content-classes:message Thread-Topic: maintenance software Thread-Index: AcSxOUlkwo1p1ZKwS36LyMjQkIaCeQAB5aOg X-NAIMIME-Disclaimer: 1 X-NAIMIME-Modified: 1 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Tyson Long Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: maintenance software Date: Wed, 13 Oct 2004 11:27:42 -0500 I use IHSP6.5, it is written just for radiation oncology. Here is the link to there web site. www.boasoftware.com Tyson Long Biomedical Equipment Specialist Mercy Medical Center Cedar Rapids, IA 52402 319-369-4532 -----Original Message----- From: Randy.McVittie@lrcc.on.ca [mailto:Randy.McVittie@lrcc.on.ca] Sent: Wednesday, October 13, 2004 9:21 AM To: Vince Reynolds Cc: linac-eng@plato.aristotle.net Subject: Re: maintenance software The market is called CMMS - Computerized Maintenance Management Systems. Most of the software products are geared towards big institutions/manufacturing plants etc. They have scheduling, parts ordering, downtime stats etc. But they cost anywhere from several hundred dollars per copy to thousands depending on the complexity. I haven't seen any maintenance software that is commercially available that tracks the sorts of things that someone servicing radiation therapy equipment would be interested in. There are several vendors of software that write databases for tracking vehicles etc, I have seen a couple of custom built database projects that work, but don't have the parts ordering side that the commercial ones do. Our host hospital uses a program call WOSYST, I am waiting to get a copy of it. I have downloaded a trial version of COGZ that I think was not too bad of a system. I downloaded or received several copies of other software that I had little or no luck installing on my computer. If anyone has come across a good solution I'd love to hear about it. Paper is still hard to beat, until you try to search through it for something that might have happened 5 years ago. (I have 9 High Energy linacs, 7 MLC and 8PV systems to keep track of so I am looking to go electronic on the records here) Randy Vince Reynolds on 2004-10-13 00:54:20 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: maintenance software Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. Confidentiality Notice: This message and any attachments may contain confidential and privileged information that is protected by law. The information contained herein is transmitted for the sole use of the intended recipient(s). If you are not the intended recipient or designated agent of the recipient of such information, you are hereby notified that any use, dissemination, copying or retention of this email or the information contained herein is strictly prohibited and may subject you to penalties under federal and/or state law. If you received this email in error, please notify the sender immediately and permanently delete this email. From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1171" "Wednesday" "13" "October" "2004" "09:40:58" "-0700" "james pinkerton" "jimpink@yahoo.com" nil "35" "water pump" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00FQSC9CPH@hubbard.azu.nl>; Wed, 13 Oct 2004 20:20:02 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101320195905510 ; Wed, 13 Oct 2004 20:19:59 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA08293; Wed, 13 Oct 2004 20:20:07 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma008268; Wed, 13 Oct 2004 20:19:43 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA04459 for linac-eng-list; Wed, 13 Oct 2004 11:41:04 -0500 (CDT) Received: from web10804.mail.yahoo.com (web10804.mail.yahoo.com [216.136.130.246]) by plato.aristotle.net (8.9.0/8.9.0) with SMTP id LAA04455 for ; Wed, 13 Oct 2004 11:41:02 -0500 (CDT) Received: from [129.112.109.250] by web10804.mail.yahoo.com via HTTP; Wed, 13 Oct 2004 09:40:58 -0700 (PDT) Message-id: <20041013164058.30239.qmail@web10804.mail.yahoo.com> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_oPblbexgGZLlYDxqx2Qq6g)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: james pinkerton Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: water pump Date: Wed, 13 Oct 2004 09:40:58 -0700 (PDT) --Boundary_(ID_oPblbexgGZLlYDxqx2Qq6g) Content-type: text/plain; charset=us-ascii To list: Yesterday we lost a water pump on one of our 2100ex machines. Since this machine is only 18 months old, this seems out of character. Has anyone seen a higher than normal failure rate on this latest style pump? Also, does anyone have a recommended alternate source? Regards To All, Jim Pinkerton --------------------------------- Do you Yahoo!? vote.yahoo.com - Register online to vote today! --Boundary_(ID_oPblbexgGZLlYDxqx2Qq6g) Content-type: text/html; charset=us-ascii

To list:

Yesterday we lost a water pump on one of our 2100ex machines. Since this machine is only 18 months old, this seems out of character. Has anyone seen a higher than normal failure rate on this latest style pump?

Also, does anyone have a recommended alternate source?

Regards To All,

Jim Pinkerton

Do you Yahoo!?
vote.yahoo.com - Register online to vote today! --Boundary_(ID_oPblbexgGZLlYDxqx2Qq6g)-- From VM Thu Oct 14 08:36:05 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2623" "Wednesday" "13" "October" "2004" "11:48:42" "-0500" "ajengstl@gundluth.org" "ajengstl@gundluth.org" nil "53" "Re: Varian pen digitizer" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00FUUCKOPH@hubbard.azu.nl>; Wed, 13 Oct 2004 20:26:49 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101320264705609 ; Wed, 13 Oct 2004 20:26:47 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA08832; Wed, 13 Oct 2004 20:26:56 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma008815; Wed, 13 Oct 2004 20:26:30 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id LAA04947 for linac-eng-list; Wed, 13 Oct 2004 11:48:46 -0500 (CDT) Received: from glsmtp1.gundluth.org (glsmtp1.gundluth.org [204.69.147.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id LAA04939; Wed, 13 Oct 2004 11:48:44 -0500 (CDT) Message-id: MIME-version: 1.0 X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Content-type: text/plain; charset=US-ASCII Precedence: bulk X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 6.5.1|January 21, 2004) at 10/13/2004 11:49:49 AM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: ajengstl@gundluth.org Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" Cc: 'clinac listserve' , owner-linac-eng@plato.aristotle.net Subject: Re: Varian pen digitizer Date: Wed, 13 Oct 2004 11:48:42 -0500 I haven't had problems with Pens but did have this strange problem. About a year ago we moved the department into a new building and the digitizer would not work in the new room. After many hours of checking every scenerio I happened to realize that the lights for the room came on when a person enters the room. No one knew how the sensors worked but they must be sonic. I disconnected the sensor and the digitizer calibrated and works fine ever since. Maybe you have something interfereing? Alan Engstler Gundersen Lutheran LaCrosse Wisc. "Lockhart, Ryan" > cc: Sent by: Subject: Varian pen digitizer owner-linac-eng@plato.ar istotle.net 10/13/04 10:15 AM Has anybody had problems with their pen digitizer? We have gone through 2 pens in the last 6 months and it's acting flaky again. Right now it won't calibrate and if you try to digitize an image, it jumps all over every 3 or 4 points. Does anybody have any theories? Thanks. Ryan Lockhart Covenant Medical Center Waterloo, Iowa 319-272-8058 From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3142" "Wednesday" "13" "October" "2004" "12:15:57" "-0500" "Kyle, John" "John.Kyle@tenethealth.com" nil "91" "RE: Varian pen digitizer" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00K72DCXIO@hubbard.azu.nl>; Wed, 13 Oct 2004 20:43:46 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101320434506009 ; Wed, 13 Oct 2004 20:43:45 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id UAA11057; Wed, 13 Oct 2004 20:43:53 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmac11016; Wed, 13 Oct 2004 20:43:17 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id MAA06106 for linac-eng-list; Wed, 13 Oct 2004 12:16:54 -0500 (CDT) Received: from mail.tenethealth.com (mail1.tenethealth.com [199.222.14.6]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA06102 for ; Wed, 13 Oct 2004 12:16:52 -0500 (CDT) Received: from tenhdcthvscan02.tenethealth.net ([172.18.167.162]) by mail.tenethealth.com (8.11.6/8.11.6) with SMTP id i9DHGLe27793; Wed, 13 Oct 2004 12:16:21 -0500 Received: from tenhdcthemx51.tenethealth.net(172.18.167.215) by tenhdcthvscan02.tenethealth.net via csmap id 99fc022a_1d3b_11d9_9463_0002b3d786d7_8977; Wed, 13 Oct 2004 12:16:20 -0500 (CDT) Received: from tenbmcthemx01.tenethealth.net ([10.30.2.48]) by tenhdcthemx51.tenethealth.net with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 12:15:58 -0500 Message-id: MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_PVOaI7x09nXICgIU40/00w)" Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 content-class: urn:content-classes:message Thread-Topic: Varian pen digitizer Thread-Index: AcSxR8WmYcgITmqGS96fLamA+du+EQAAHcLA X-OriginalArrivalTime: 13 Oct 2004 17:15:58.0258 (UTC) FILETIME=[4E4BF920:01C4B148] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Kyle, John" Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" , clinac listserve Subject: RE: Varian pen digitizer Date: Wed, 13 Oct 2004 12:15:57 -0500 This is a multi-part message in MIME format. --Boundary_(ID_PVOaI7x09nXICgIU40/00w) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable We did the same thing. Wound up replacing the Digitizer. Luckily it was under warranty.=20 John Kyle=20 Coordinator=20 Technical Support Services=20 Brookwood Medical Center=20 205-877-1092=20 -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Lockhart, Ryan Sent: Wednesday, October 13, 2004 10:16 AM To: 'clinac listserve' Subject: Varian pen digitizer Has anybody had problems with their pen digitizer? We have gone through 2 pens in the last 6 months and it's acting flaky again. Right now it won't calibrate and if you try to digitize an image, it jumps all over every 3 or 4 points. Does anybody have any theories? Thanks.=20 Ryan Lockhart=20 Covenant Medical Center=20 Waterloo, Iowa=20 319-272-8058=20 --Boundary_(ID_PVOaI7x09nXICgIU40/00w) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Message

We did=20 the same thing. Wound up replacing the Digitizer. Luckily it was under = warranty.=20

John Kyle
Coordinator
Technical = Support=20 Services
Brookwood Medical = Center=20
205-877-1092 =

-----Original Message-----
From:=20 owner-linac-eng@plato.aristotle.net=20 [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of = Lockhart,=20 Ryan
Sent: Wednesday, October 13, 2004 10:16 = AM
To:=20 'clinac listserve'
Subject: Varian pen=20 digitizer

Has anybody had problems with their pen = digitizer? We have gone through 2 pens in the last 6 months and = it's=20 acting flaky again. Right now it won't calibrate and if you try = to=20 digitize an image, it jumps all over every 3 or 4 points. Does = anybody=20 have any theories?

Thanks.

Ryan Lockhart
Covenant Medical Center
Waterloo,=20 Iowa
319-272-8058=20

--Boundary_(ID_PVOaI7x09nXICgIU40/00w)-- From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2125" "Wednesday" "13" "October" "2004" "12:57:20" "-0500" "ajengstl@gundluth.org" "ajengstl@gundluth.org" nil "50" "Re: water pump" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J0006PFT7XJ@hubbard.azu.nl>; Wed, 13 Oct 2004 21:37:13 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101321371107954 ; Wed, 13 Oct 2004 21:37:11 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id VAA21204; Wed, 13 Oct 2004 21:37:20 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma021012; Wed, 13 Oct 2004 21:36:37 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id MAA07073 for linac-eng-list; Wed, 13 Oct 2004 12:57:24 -0500 (CDT) Received: from glsmtp1.gundluth.org (glsmtp1.gundluth.org [204.69.147.15]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id MAA07068; Wed, 13 Oct 2004 12:57:23 -0500 (CDT) Message-id: MIME-version: 1.0 X-Mailer: Lotus Notes Release 5.0.9 November 16, 2001 Content-type: text/plain; charset=US-ASCII Precedence: bulk X-MIMETrack: Serialize by Router on GLSMTP1/GUNDLUTH(Release 6.5.1|January 21, 2004) at 10/13/2004 12:58:28 PM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: ajengstl@gundluth.org Sender: owner-linac-eng@plato.aristotle.net To: james pinkerton Cc: linac-eng@plato.aristotle.net, owner-linac-eng@plato.aristotle.net Subject: Re: water pump Date: Wed, 13 Oct 2004 12:57:20 -0500 Greetings; We had to replace the pump on our 1.5 year old 21EX sn 2038 due to annoying high-pitch bearing noise. Alan Engstler Gundersen Lutheran LaCrosse Wisc. james pinkerton To: linac-eng@plato.aristotle.net Sent by: cc: owner-linac-eng@plato.ar Subject: water pump istotle.net 10/13/2004 11:40 AM To list: Yesterday we lost a water pump on one of our 2100ex machines. Since this machine is only 18 months old, this seems out of character. Has anyone seen a higher than normal failure rate on this latest style pump? Also, does anyone have a recommended alternate source? Regards To All, Jim Pinkerton Do you Yahoo!? vote.yahoo.com - Register online to vote today! From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["4428" "Wednesday" "13" "October" "2004" "14:34:28" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "96" "RE: 2100c Collimator drift in am during warm-up." "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J000N7H6GXJ@hubbard.azu.nl>; Wed, 13 Oct 2004 22:06:26 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101322062308705 ; Wed, 13 Oct 2004 22:06:23 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA25416; Wed, 13 Oct 2004 22:06:33 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa25346; Wed, 13 Oct 2004 22:06:01 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id NAA07756 for linac-eng-list; Wed, 13 Oct 2004 13:35:13 -0500 (CDT) Received: from PHSXCHICI3.partners.org (phsxchici3.mgh.harvard.edu [132.183.130.38]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA07752 for ; Wed, 13 Oct 2004 13:35:11 -0500 (CDT) Received: by phsxchici3.mgh.harvard.edu with Internet Mail Service (5.5.2657.72) id <4K4CXN1Y>; Wed, 13 Oct 2004 14:35:34 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E1114665A1@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_SKRAZsNZ6MBPg3eug+CcQQ)" Precedence: bulk X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: "'neville.wiles@spectrum-health.org'" , linac-eng@plato.aristotle.net Subject: RE: 2100c Collimator drift in am during warm-up. Date: Wed, 13 Oct 2004 14:34:28 -0400 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_SKRAZsNZ6MBPg3eug+CcQQ) Content-type: text/plain; charset=ISO-8859-1 is the indicated motion real? Or just a readout change without physical motion? I would suspect reference voltage for readouts, especially the AD reference v chip. Since couch has a separate reference, and I assume is ok, I would not suspect console area. Next suspect would be a change in grounds that affect the head. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of neville.wiles@spectrum-health.org Sent: Wednesday, October 13, 2004 10:19 AM To: linac-eng@plato.aristotle.net Subject: 2100c Collimator drift in am during warm-up. Hello, I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this. Thanking anyone in advance, Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 --Boundary_(ID_SKRAZsNZ6MBPg3eug+CcQQ) Content-type: text/html; charset=ISO-8859-1

is the indicated motion real? Or just a readout change without physical motion?

I would suspect reference voltage for readouts, especially the AD reference v chip. Since couch has a separate reference, and I assume is ok, I would not suspect console area. Next suspect would be a change in grounds that affect the head.

Jerry

-----Original Message-----
From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of neville.wiles@spectrum-health.org
Sent: Wednesday, October 13, 2004 10:19 AM
To: linac-eng@plato.aristotle.net
Subject: 2100c Collimator drift in am during warm-up.

Hello,

I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this.

Thanking anyone in advance,

Neville Wiles

Spectrum Health

Grand Rapids, MI

616 391-3639

--Boundary_(ID_SKRAZsNZ6MBPg3eug+CcQQ)-- From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1399" "Wednesday" "13" "October" "2004" "14:38:52" "-0400" "Feuerstake, Tom" "Tom.Feuerstake@krcc.on.ca" nil "45" "RE: maintenance software" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J000MHH7SWU@hubbard.azu.nl>; Wed, 13 Oct 2004 22:07:10 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101322070708730 ; Wed, 13 Oct 2004 22:07:07 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA25531; Wed, 13 Oct 2004 22:07:16 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma025439; Wed, 13 Oct 2004 22:06:37 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA07805 for linac-eng-list; Wed, 13 Oct 2004 13:38:58 -0500 (CDT) Received: from ks09p04.kgh.kari.net (kghmail.kgh.kari.net [207.35.220.4]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA07801 for ; Wed, 13 Oct 2004 13:38:54 -0500 (CDT) Received: from ks04p02.kgh.on.ca [10.40.69.152] by ks09p04.kgh.kari.net - SurfControl E-mail Filter (4.7); Wed, 13 Oct 2004 14:38:52 -0400 Message-id: <366642367C5B354197A1E0D27BC175BD439E78@KGHMAIL.KGH.ON.CA> MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 8bit Precedence: bulk X-MimeOLE: Produced By Microsoft Exchange V6.0.6487.1 Content-class: urn:content-classes:message Thread-Topic: maintenance software thread-index: AcSw6jsoQDUpI+z5RtmzchEjc26BOgAaINeQ X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id NAA07802 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: "Feuerstake, Tom" Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: maintenance software Date: Wed, 13 Oct 2004 14:38:52 -0400 Accel is a free program that I and others use. It replaces your log books and also handles inventory and generates reports, including uptime. It runs its own database, and can be used on a network with multiple users. For more info see: http://accel8.tripod.com/Accel.htm The program is free to download, the only requirement is that you have to contact me for the installation password. Once you've got that it's fully functional! Other built- in Features: - Makes reports suitable for CNSC service reporting (as used in Canada) - Contains a knowledge base of hundreds of emails that you can search through Send me an email if you want to try it out. Tom Feuerstake -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net] On Behalf Of Vince Reynolds Sent: October 13, 2004 12:54 AM To: linac-eng@plato.aristotle.net Subject: maintenance software Are there any packages out there that will replace our manual fault books and are compatible with Varis thanks Vince Royal North Shore Hospital Sydney Disclaimer: 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 or Cancer Institute of NSW. From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3156" "Wednesday" "13" "October" "2004" "14:43:42" "-0400" "Maddox, Buford J" "JMADDOX@LROC.HARVARD.EDU" nil "100" "RE: HD A/D+ Interlocks" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J000QAHHXXJ@hubbard.azu.nl>; Wed, 13 Oct 2004 22:13:11 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101322131008859 ; Wed, 13 Oct 2004 22:13:10 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA26281; Wed, 13 Oct 2004 22:13:18 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma026261; Wed, 13 Oct 2004 22:12:53 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id NAA07939 for linac-eng-list; Wed, 13 Oct 2004 13:44:25 -0500 (CDT) Received: from PHSXCHICI4.partners.org (phsxchici4.mgh.harvard.edu [132.183.130.39]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id NAA07935 for ; Wed, 13 Oct 2004 13:44:23 -0500 (CDT) Received: by phsxchici4.mgh.harvard.edu with Internet Mail Service (5.5.2657.72) id ; Wed, 13 Oct 2004 14:44:52 -0400 Message-id: <36298D09ED1AD311B4DC0008C7F4D4E1114665A3@phsexch6.partners.org> MIME-version: 1.0 X-Mailer: Internet Mail Service (5.5.2657.72) 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 From: "Maddox, Buford J" Sender: owner-linac-eng@plato.aristotle.net To: "'Steve.Gibson@lrcc.on.ca'" , linac-eng@plato.aristotle.net Subject: RE: HD A/D+ Interlocks Date: Wed, 13 Oct 2004 14:43:42 -0400 Electrical RTV silicone rubber, like GE or Dow Corning, not the caulking/paintable hardware store type, is excellent for HV insulation repairs. It fills voids so there is no air for Corona, reduces electric fields by the dielectric contstant of 2.2, and is ready to use even before curing. many successful repairs and contruction projects with it. Jerry -----Original Message----- From: owner-linac-eng@plato.aristotle.net [mailto:owner-linac-eng@plato.aristotle.net]On Behalf Of Steve.Gibson@lrcc.on.ca Sent: Wednesday, October 13, 2004 10:58 AM To: linac-eng@plato.aristotle.net Subject: HD A/D+ Interlocks Dear List, As a follow up to the HD A/D+ GFIL interlocks we were getting a few weeks back. The problem turned out to be an arc through the insulation of the gun lead as evidenced by a nice black hole in the insulation. We insulated the lead around the arc spot using 3M 2155 Rubber Splicing Tape followed by a layer of standard electrical tape followed by a layer of high voltage heat shrink. Not the most elegant but considering the alternative ! It has been nearly 2 months now and no more GFIL's. Thanks to Tom Feuerstake for guessing this one correctly. Steve Gibson London Regional Cancer Centre London, Ontario Canada ---------------------- Forwarded by Steve Gibson/Lrcc on 10/13/2004 10:46 AM --------------------------- Steve Gibson 08/27/2004 11:11 AM To: linac-eng@plato.aristotle.net cc: Subject: HD A/D+ Interlocks Hello List, For the past few months we have been getting intermittent GFIL interlocks on one of our C/D machines. Gun controller indicates HD A/D+ error = Hot Deck A/D Converter Over Self Test Failure. This causes the hot deck and high voltage power supplies to turn off on the cold deck side but master power stays up. Usually cycling the power supply on the cold deck side will clear the interlock. Over the weeks all the following have been replaced with new components to no avail : 1. A/D chip TLC1541IN (U2) on Hot Deck Filament Power Supply Board 2. Hot Deck Filament Power Supply Board 3. Hot Deck Gun Driver Pulser Board 4. Hot Deck Backplane 5. Hot Deck Power Supply 6. Hot Deck Cooling Fan 7. Fiber Optic cable bundle from Cold Deck to Hot Deck 8. Fiber Optic Interface Board on Cold Deck 9. Gun Controller Card 10. Cold Deck Power Supply Board Typically, the machine will run fine for a few days or a week and then the GFIL shows up again. This morning we had a GFIL for the first time on our brand new 21EX and it was also HD A/D+. Has anyone seen this before or have any suggestions on the cause ... we are quickly running out of ideas on this one. Thanks in advance, Steve Gibson London Regional Cancer Centre London, Ontario Canada ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2728" "Wednesday" "13" "October" "2004" "14:58:33" "-0400" "Peter Vitali" "peter.vitali@yale.edu" nil "68" "Re: water pump" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J0000CIGVXJ@hubbard.azu.nl>; Wed, 13 Oct 2004 22:34:48 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101322344709354 ; Wed, 13 Oct 2004 22:34:47 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA29150; Wed, 13 Oct 2004 22:34:56 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma029139; Wed, 13 Oct 2004 22:34:38 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA08388 for linac-eng-list; Wed, 13 Oct 2004 14:01:28 -0500 (CDT) 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 OAA08380 for ; Wed, 13 Oct 2004 14:01:27 -0500 (CDT) Received: from yale.edu (vitalip.med.yale.edu [130.132.213.170]) by biomed.med.yale.edu (PMDF V6.1-1 #30532) with ESMTP id <01LFZJB1RW14004AB9@biomed.med.yale.edu> for linac-eng@plato.aristotle.net; Wed, 13 Oct 2004 14:56:35 -0400 (EDT) Message-id: <416D7A74.9893CA38@yale.edu> MIME-version: 1.0 X-Mailer: Mozilla 4.76 (Macintosh; U; PPC) Content-type: text/plain; charset=us-ascii; x-mac-type=54455854; x-mac-creator=4D4F5353 Content-transfer-encoding: 7bit Precedence: bulk X-Accept-Language: en References: <20041013164058.30239.qmail@web10804.mail.yahoo.com> X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Peter Vitali Sender: owner-linac-eng@plato.aristotle.net To: james pinkerton Cc: linac-eng@plato.aristotle.net Subject: Re: water pump Date: Wed, 13 Oct 2004 14:58:33 -0400 Jim: We lost a water pump on our 21EX-S approximately 20 months after acceptance. The pump motor seal let go. The pumps are Grundfos. I believe but they bought out Franklin Pumps and use Franklin motors attached to Grundfos pumps or maybe Franklin pumps with Grundfos labels. In the past we would replace the Franklin motors on our pumps about every 2.5 years when the seal let go. There was a discussion on Linac Engineers this about a year ago. The original Grundfos pumps in my C2 machines have lasted over 10 years which was why I was surprised when the pump went after 20 months. I recently ordered motors from my local Pump dealer who could get me Grundfos pumps. They were more expensive than the motors I could get locally since they had to come from Europe. Grundfos Motor Model 79302005 Product Code; D.0304 The original motor was Grundfos MS402, Model 79302005, Ph 3, 60 Hz, Product Code D.0304 230 BAC 1.50 HP SF 1.3 S.F.A. 6.3 3420 RPM My cost was $305.00 US. I haven't used them yet so I have no track record on them. It just so happened that I lost the pump motor on my 2100C 228 after about 12 years and I did not throw it away. That is were I got the numbers for ordering the motor above. Two years after we purchased the 2100C 228 we purchased a whole pump assembly from Varian because we expected to loose the pump after about two years of service. We never used it until about a year ago. Beware that when you replace the pump motor the wiring may not be in correct phase relationship as the original pump motor but the wire colors are they same. If the pump starts and runs but you do not have enough pressure, change the order of the connections. Its a three phase motor and if the phases are not hook up correctly the pump will start but not spin fast enough. We ran into this problem when we replaced the pump on the 2100C 228. We thought the pump we purchase 10 years earlier was defective because it was in the water when we had the flood in the department. We took the never used pump apart and put the motor on the pump body that we removed. It still did not get enough pressure. We then switched the positions of the wires on the tie block and we had the correct pressure. We then determined that the pump motors may have been wired differently even though they were probably made within three years of each other. Hope is helps 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 peter.vitali@ynhh.org As usual, everything I say may be plausibly denied at my employer's convenience... From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2101" "Thursday" "14" "October" "2004" "08:19:24" "+1300" "Dave Pinchin" "Dave.Pinchin@cdhb.govt.nz" nil "44" "Re: 2100c Collimator drift in am during warm-up." "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J0009WJARXJ@hubbard.azu.nl>; Wed, 13 Oct 2004 22:52:10 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101322520709756 ; Wed, 13 Oct 2004 22:52:07 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id WAA01330; Wed, 13 Oct 2004 22:52:15 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmac01289; Wed, 13 Oct 2004 22:51:47 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA08805 for linac-eng-list; Wed, 13 Oct 2004 14:20:08 -0500 (CDT) Received: from gandalf.chhlth.govt.nz ([159.117.1.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA08797 for ; Wed, 13 Oct 2004 14:20:06 -0500 (CDT) Received: from NTCHAVIMSS (ntchavimss.chhlth.govt.nz [159.117.27.250]) by gandalf.chhlth.govt.nz (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id i9DJJZEt017015 for ; Thu, 14 Oct 2004 08:19:35 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ ([159.117.20.14]) by NTCHAVIMSS with InterScan Messaging Security Suite; Thu, 14 Oct 2004 08:19:32 +1300 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 14 Oct 2004 08:19:31 +1300 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.4 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 8bit Precedence: bulk X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA08798 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dave Pinchin Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net, neville.wiles@spectrum-health.org Subject: Re: 2100c Collimator drift in am during warm-up. Date: Thu, 14 Oct 2004 08:19:24 +1300 G'day, We have seen this too on 2100 #40. (c1). We have been keeping an eye on it for years now, and have never managed to resolve it. We have never seen it happen in 'clinical'. We suspect it only happens with the auto movements associated w/ morning check. Any ideas would be appreciated. Dave PS. I've scrunched the 'O' ring seal on the water filter too, but my BIGGEST claim to fame was the Acc Sol PSU. Ours litterally smoked while I was on leave and it was replaced by Mr. V. When I returned I looked for the smokey bit inside. It was the 110V fan I replaced. It should have been 220V ! ! ! ! ! ! ! ! ! I hear Pizza Hutt are hiring too........ >>> 14/10/04 03:19:09 >>> Hello, I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this. Thanking anyone in advance, Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 ********************************************************************** Check out our web site: http://www.cdhb.govt.nz 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 ********************************************************************** From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["2428" "Thursday" "14" "October" "2004" "08:26:00" "+1300" "Dave Pinchin" "Dave.Pinchin@cdhb.govt.nz" nil "79" "Re: 2100c Collimator drift in am during warm-up." "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J000HEJZPXJ@hubbard.azu.nl>; Wed, 13 Oct 2004 23:07:02 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101323070009993 ; Wed, 13 Oct 2004 23:07:00 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id XAA02674; Wed, 13 Oct 2004 23:07:09 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma002631; Wed, 13 Oct 2004 23:06:36 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id OAA09000 for linac-eng-list; Wed, 13 Oct 2004 14:27:07 -0500 (CDT) Received: from gandalf.chhlth.govt.nz ([159.117.1.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id OAA08996 for ; Wed, 13 Oct 2004 14:27:05 -0500 (CDT) Received: from NTCHAVIMSS (ntchavimss.chhlth.govt.nz [159.117.27.250]) by gandalf.chhlth.govt.nz (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id i9DJQGEt017367 for ; Thu, 14 Oct 2004 08:26:16 +1300 Received: from SMTPGATE.CHHLTH.GOVT.NZ ([159.117.20.14]) by NTCHAVIMSS with InterScan Messaging Security Suite; Thu, 14 Oct 2004 08:26:13 +1300 Received: from CHCH2-MTA by SMTPGATE.CHHLTH.GOVT.NZ with Novell_GroupWise; Thu, 14 Oct 2004 08:26:13 +1300 Message-id: MIME-version: 1.0 X-Mailer: Novell GroupWise Internet Agent 6.0.4 Content-type: text/plain; charset=US-ASCII Content-disposition: inline Content-transfer-encoding: 8bit Precedence: bulk X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id OAA08997 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Dave Pinchin Sender: owner-linac-eng@plato.aristotle.net To: Randy.McVittie@lrcc.on.ca, linac-eng@plato.aristotle.net Subject: Re: 2100c Collimator drift in am during warm-up. Date: Thu, 14 Oct 2004 08:26:00 +1300 G'day, #40 hasn't got MLC. :D >>> 14/10/04 03:58:01 >>> Does the machine have a MLC? If it does the slip clutch on the collimator motor may be loose (We just had that last week on a machine) Are your power supplies drifting? Is it happening at a particular gantry angle, like 90 degrees (IEC) if so it could be a cable in your gantry windup lots of possibilities, let us know what you find Randy neville.wiles@spectrum-health.org on 2004-10-13 10:19:09 To: linac-eng@plato.aristotle.net cc: (bcc: Randy McVittie/Lrcc) Subject: 2100c Collimator drift in am during warm-up. Hello, I have a 2100c-2 S/N 423. The warm-up person keeps complaining that the col. drifts with no input during warm-up, up to a couple of degrees. Also sometimes the jaws change also. The morning, when I came in there was no drift, and the therapists don't see any either. So far I've reseated the pcb's in the console, replaced the right hand pendant with a new one and then the left with the right when the "problem" reoccured. Also the cables. So, I would thank anyone if they have any Idea on this. Thanking anyone in advance, Neville Wiles Spectrum Health Grand Rapids, MI 616 391-3639 ----------------------------------------- This information is directed in confidence solely to the person named above and may contain confidential and/or privileged material. This information may not otherwise be distributed, copied or disclosed. If you have received this e-mail in error, please notify the sender immediately via a return e-mail and destroy original message. Thank you for your cooperation. ********************************************************************** Check out our web site: http://www.cdhb.govt.nz 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 ********************************************************************** From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["3545" "Wednesday" "13" "October" "2004" "13:03:56" "-0700" "JamesR.Wilson@providence.org" "JamesR.Wilson@providence.org" nil "79" "Varian CL2100EX CARR/FOIL Interlocks" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J007ZDMMUUZ@hubbard.azu.nl>; Thu, 14 Oct 2004 00:04:13 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101400041010804 ; Thu, 14 Oct 2004 00:04:10 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA06924; Thu, 14 Oct 2004 00:04:18 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma006896; Thu, 14 Oct 2004 00:04:09 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id PAA10159 for linac-eng-list; Wed, 13 Oct 2004 15:04:30 -0500 (CDT) Received: from phsornt424.or.providence.org (phsor-nat2.providence.org [170.220.2.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA10155 for ; Wed, 13 Oct 2004 15:04:28 -0500 (CDT) Received: from PickupDirectory by phsornt424.or.providence.org with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id QTBFQT3C; Wed, 13 Oct 2004 13:05:33 -0700 Received: from phsorcon06.or.providence.org ([170.220.78.187]) by phsornt424.or.providence.org with Microsoft SMTPSVC(5.0.2195.2966); Wed, 13 Oct 2004 13:05:32 -0700 Received: from phsormsg02.or.providence.org ([170.220.75.191]) by phsorcon06.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 13:03:57 -0700 Message-id: <0838AEB7ABB0C04481781A84D6DE7C6C0112346E@phsormsg02.or.providence.org> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_HGi2EyM8Kp+kh+CNjUUqgw)" Importance: normal Precedence: bulk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Content-Class: urn:content-classes:message Thread-Topic: Varian CL2100EX CARR/FOIL Interlocks thread-index: AcSxX8WbdkfX1sGWTnW4zO9OFGRSyA== X-OriginalArrivalTime: 13 Oct 2004 20:03:57.0198 (UTC) FILETIME=[C5D02AE0:01C4B15F] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JamesR.Wilson@providence.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: Varian CL2100EX CARR/FOIL Interlocks Date: Wed, 13 Oct 2004 13:03:56 -0700 This is a multi-part message in MIME format. --Boundary_(ID_HGi2EyM8Kp+kh+CNjUUqgw) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable After baring my soul over my failure to find and intermittent water leak in our 2100EX, I would again like to ask the list for a favor. Does anyone have the instructions for setting up the new style Carrousel/Bmag PCB. I am still fighting an intermittent interlock on this machine. I get both "00" and "9E" as codes during this failure. When the "00" code comes up with the interlock present the green LED flashes on and off and eventually stays green and the interlock clears. It takes a remode to clear the "9E". This failure stops the carrousel before the pin drop. I would like to try our spare PCB. Also I have a problem with the HWFA fault that is described as CPU 01. This sometimes occurs before the key is turned or the beam on pressed. Thanks, Jim Wilson Clinical Engineering Providence Health System DISCLAIMER: This message is intended for the sole use of the addressee, and may = contain information that is privileged, confidential and exempt from = disclosure under applicable law. If you are not the 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 this message. --Boundary_(ID_HGi2EyM8Kp+kh+CNjUUqgw) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Varian CL2100EX CARR/FOIL Interlocks

After baring my soul over my failure to = find and intermittent water leak in our 2100EX, I would again like to = ask the list for a favor. Does anyone have the instructions for setting = up the new style Carrousel/Bmag PCB. I am still fighting an intermittent = interlock on this machine. I get both "00" and "9E" = as codes during this failure. When the "00" code comes up with = the interlock present the green LED flashes on and off and eventually = stays green and the interlock clears. It takes a remode to clear the = "9E". This failure stops the carrousel before the pin drop. I = would like to try our spare PCB. Also I have a problem with the = HWFA fault that is described as CPU 01. This sometimes occurs before the = key is turned or the beam on pressed. Thanks,

Jim Wilson
Clinical Engineering
Providence Health System

DISCLAIMER:
This message is intended for the sole use of = the addressee, and may contain information that is privileged, = confidential and exempt from disclosure under applicable law. If you are = not the 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 this = message. --Boundary_(ID_HGi2EyM8Kp+kh+CNjUUqgw)-- From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["798" "Wednesday" "13" "October" "2004" "16:41:13" "-0400" "Chris Bartee" "CBartee@mcvh-vcu.edu" nil "26" "Re: Varian pen digitizer" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J008T4NBULX@hubbard.azu.nl>; Thu, 14 Oct 2004 00:19:09 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101400190611022 ; Thu, 14 Oct 2004 00:19:06 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id AAA08027; Thu, 14 Oct 2004 00:19:15 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma008016; Thu, 14 Oct 2004 00:19:03 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id PAA13535 for linac-eng-list; Wed, 13 Oct 2004 15:43:26 -0500 (CDT) Received: from andromeda.mcvh-vcu.edu (nethawk.mcvh-vcu.edu [208.0.115.232]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id PAA13530; Wed, 13 Oct 2004 15:43:24 -0500 (CDT) Received: from mcv-hub.mcvh-vcu.edu ([206.105.121.24]) by andromeda.mcvh-vcu.edu (8.12.11/8.12.10) with ESMTP id i9DKfALh016469; Wed, 13 Oct 2004 16:41:10 -0400 In-reply-to: Message-id: MIME-version: 1.0 X-Mailer: Lotus Notes Release 6.5.2 June 01, 2004 Content-type: text/plain; charset=US-ASCII Precedence: bulk X-MIMETrack: Serialize by Router on MCV-Hub/MCVH(Release 6.5.1|January 21, 2004) at 10/13/2004 04:44:36 PM X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: Chris Bartee Sender: owner-linac-eng@plato.aristotle.net To: "Lockhart, Ryan" Cc: 'clinac listserve' , owner-linac-eng@plato.aristotle.net Subject: Re: Varian pen digitizer Date: Wed, 13 Oct 2004 16:41:13 -0400 If you are using a crt monitor, sometimes the flyback transformer will interfere with the pen. I use to install these for V and all you had to do is make sure the back of the monitor is more than approx 16 inches from the digitizer itself. Just a thought, Chris NOTE: The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. -------------------------------------- VCU Health System http://www.vcuhealth.org From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["1730" "Wednesday" "13" "October" "2004" "15:36:48" "-0700" "JamesR.Wilson@providence.org" "JamesR.Wilson@providence.org" nil "15" "=?iso-8859-1?Q?RE:_Varian_CL2100EX_=A0CARR/FOIL_Interlocks?=" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00K2XSX6LL@hubbard.azu.nl>; Thu, 14 Oct 2004 02:19:56 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101402195412410 ; Thu, 14 Oct 2004 02:19:54 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id CAA15137; Thu, 14 Oct 2004 02:20:03 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xma015113; Thu, 14 Oct 2004 02:19:36 +0200 Received: by plato.aristotle.net (8.9.0/8.9.0) id RAA15178 for linac-eng-list; Wed, 13 Oct 2004 17:37:21 -0500 (CDT) Received: from phsornt422.or.providence.org (phsor-nat2.providence.org [170.220.2.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA15174 for ; Wed, 13 Oct 2004 17:37:20 -0500 (CDT) Received: from PickupDirectory by phsornt422.or.providence.org with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id RBFQN1ZG; Wed, 13 Oct 2004 15:37:01 -0700 Received: from phsorcon06.or.providence.org ([170.220.78.187]) by phsornt422.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 15:37:00 -0700 Received: from phsormsg02.or.providence.org ([170.220.75.191]) by phsorcon06.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 15:36:48 -0700 Message-id: <0838AEB7ABB0C04481781A84D6DE7C6C19F434@phsormsg02.or.providence.org> MIME-version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8bit Importance: normal Precedence: bulk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Content-Class: urn:content-classes:message Thread-Topic: =?iso-8859-1?Q?Varian_CL2100EX_=A0CARR/FOIL_Interlocks?= thread-index: AcSxZPbmtMAVAR/HTvugwwVeGgl3uQADpUIg X-OriginalArrivalTime: 13 Oct 2004 22:36:48.0496 (UTC) FILETIME=[20552F00:01C4B175] X-MIME-Autoconverted: from quoted-printable to 8bit by plato.aristotle.net id RAA15175 X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JamesR.Wilson@providence.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: =?iso-8859-1?Q?RE:_Varian_CL2100EX_=A0CARR/FOIL_Interlocks?= Date: Wed, 13 Oct 2004 15:36:48 -0700 Well it's kind of funny because with the "00" code (no errors as you said) the green light will sit and flash, while giving a carr/foil interlock, with the pin in. Sometimes it will sit there for a minute or so and suddenly go solid green with the interlock clearing. When I have had my meter on the input to the PCB, the pot voltage is 5.00 +- .05 so it makes me think the pot is not an issue for this particular interlock. The 9E error of course is different. -----Original Message----- From: SMcna39074@aol.com [mailto:SMcna39074@aol.com] Sent: Wednesday, October 13, 2004 1:41 PM To: Wilson, Jim Subject: Re: Varian CL2100EX CARR/FOIL Interlocks If the 2100ex is anything like the 2100, there should be a code readout in the schematics book under aux electronics. On the 2100 a code of 00 is no errors, that's why the interlock clears. a code of 9e is A/D value jumped: chain may have jumped. Bad A/D, pot or chain. Good luck on setting up a bmag pcb. HWFA fault CPU01 fault on key/beam on is usually due to bad key blocks/actuator. Most often the plastic actuator that makes the block switch wears such that the switch appears intermittant. Gives a timeout reported as HWFA CPU 01 Stan McNally Cancer Center of Santa Barbara stan@ccsb.org DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message. From VM Thu Oct 14 08:36:06 2004 X-VM-v5-Data: ([nil nil nil nil nil nil nil nil nil] ["9400" "Wednesday" "13" "October" "2004" "15:42:50" "-0700" "JamesR.Wilson@providence.org" "JamesR.Wilson@providence.org" nil "222" "RE: Varian CL2100EX CARR/FOIL Interlocks" "^From:" nil nil "10" nil nil nil nil nil nil nil nil nil] nil) Return-path: Received: from mg1003.ds.umcutrecht.nl ([143.121.182.27]) by hubbard.azu.nl (Sun Internet Mail Server sims.3.5.2000.03.23.18.03.p10) with SMTP id <0I5J00K66T2VLL@hubbard.azu.nl>; Thu, 14 Oct 2004 02:23:21 +0200 (MET DST) Received: from armstrong.azu.nl ([143.121.253.2]) by mg1003.ds.umcutrecht.nl (SAVSMTP 3.1.0.29) with SMTP id M2004101402231812448 ; Thu, 14 Oct 2004 02:23:18 +0200 Received: (from daemon@localhost) by armstrong.azu.nl (8.8.5/8.8.5) id CAA15369; Thu, 14 Oct 2004 02:23:27 +0200 (MET DST) Received: from plato.aristotle.net(206.66.224.2) by armstrong.azu.nl via smap (V1.3) id xmaa15337; Thu, 14 Oct 2004 02:23:20 +0200 Received: (from majordomo@localhost) by plato.aristotle.net (8.9.0/8.9.0) id RAA15199 for linac-eng-list; Wed, 13 Oct 2004 17:43:23 -0500 (CDT) Received: from phsornt422.or.providence.org (phsor-nat2.providence.org [170.220.2.14]) by plato.aristotle.net (8.9.0/8.9.0) with ESMTP id RAA15195 for ; Wed, 13 Oct 2004 17:43:22 -0500 (CDT) Received: from PickupDirectory by phsornt422.or.providence.org with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2653.13) id RBFQN17T; Wed, 13 Oct 2004 15:43:03 -0700 Received: from wn0034.or.providence.org ([170.220.78.17]) by phsornt422.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 15:43:02 -0700 Received: from phsormsg02.or.providence.org ([170.220.75.191]) by wn0034.or.providence.org with Microsoft SMTPSVC(5.0.2195.6713); Wed, 13 Oct 2004 15:42:50 -0700 Message-id: <0838AEB7ABB0C04481781A84D6DE7C6C19F435@phsormsg02.or.providence.org> MIME-version: 1.0 Content-type: MULTIPART/ALTERNATIVE; BOUNDARY="Boundary_(ID_sf770BpvxvDZyKAC+ex4GQ)" Importance: normal Precedence: bulk X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Content-Class: urn:content-classes:message Thread-Topic: Varian CL2100EX CARR/FOIL Interlocks thread-index: AcSxcaBTA0zwt8KvQyuGv9Gy4x+mCwAA5VvA X-OriginalArrivalTime: 13 Oct 2004 22:42:50.0781 (UTC) FILETIME=[F8457CD0:01C4B175] X-Authentication-warning: plato.aristotle.net: majordomo set sender to owner-linac-eng@plato.aristotle.net using -f From: JamesR.Wilson@providence.org Sender: owner-linac-eng@plato.aristotle.net To: linac-eng@plato.aristotle.net Subject: RE: Varian CL2100EX CARR/FOIL Interlocks Date: Wed, 13 Oct 2004 15:42:50 -0700 This is a multi-part message in MIME format. --Boundary_(ID_sf770BpvxvDZyKAC+ex4GQ) Content-type: text/plain; charset=us-ascii Content-transfer-encoding: quoted-printable You can adjust the Bmag programming to the shunt values that should be recorded for the machine as long as you are using the same meter that they were recorded with. I was told by a former Varian service tech that this board sets up differently in some way than the older version, which is why I am hoping to find some expertise out there. We would of course have the physicist take a look after we are done. Thanks, Jim _____ =20 From: jeremy [mailto:j.yorke@comcast.net]=20 Sent: Wednesday, October 13, 2004 3:10 PM To: Wilson, Jim Subject: Re: Varian CL2100EX CARR/FOIL Interlocks Jim, =20 I have also experienced this problem the past couple months, same error codes and the only thing I can do to clear them is if I am lucky, I can manually calibrate the carousel via the pcb, but sometimes I have to remove lead, manually seat the pin and then run the calibrate cycle. Haven't come up with anything yet except to change the board as you suggest. Have not had time to do that yet, please let me know if you get any info on this, or if your successful with the board change. =20 Not sure what is involved, I would thing it would be fine, if you removed the existing pcb, measured the resistance of all the BMAG energy pots, then set the resistance to equal the same values on the new one. Install the board, then set the Bmag trip levels for each energy. I highly recommend having physics do a quick energy check before going clinical again though. =20 Jeremy ----- Original Message -----=20 From: JamesR.Wilson@providence.org=20 To: linac-eng@plato.aristotle.net=20 Sent: Wednesday, October 13, 2004 4:03 PM Subject: Varian CL2100EX CARR/FOIL Interlocks After baring my soul over my failure to find and intermittent water leak in our 2100EX, I would again like to ask the list for a favor. Does anyone have the instructions for setting up the new style Carrousel/Bmag PCB. I am still fighting an intermittent interlock on this machine. I get both "00" and "9E" as codes during this failure. When the "00" code comes up with the interlock present the green LED flashes on and off and eventually stays green and the interlock clears. It takes a remode to clear the "9E". This failure stops the carrousel before the pin drop. I would like to try our spare PCB. Also I have a problem with the HWFA fault that is described as CPU 01. This sometimes occurs before the key is turned or the beam on pressed. Thanks, Jim Wilson=20 Clinical Engineering=20 Providence Health System=20 =09 DISCLAIMER: This message is intended for the sole use of the addressee, and may contain information that is privileged, confidential and exempt from disclosure under applicable law. If you are not the 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 this message.=20 DISCLAIMER: This message is intended for the sole use of the addressee, and may = contain information that is privileged, confidential and exempt from = disclosure under applicable law. If you are not the 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 this message. --Boundary_(ID_sf770BpvxvDZyKAC+ex4GQ) Content-type: text/html; charset=us-ascii Content-transfer-encoding: quoted-printable Varian CL2100EX CARR/FOIL Interlocks

You can adjust the Bmag programming to the = shunt values=20 that should be recorded for the machine as long as you are using the = same meter=20 that they were recorded with. I was told by a former Varian service tech = that=20 this board sets up differently in some way than the older version, which = is why=20 I am hoping to find some expertise out there. We would of course = have the=20 physicist take a look after we are done. Thanks, = Jim

From: jeremy = [mailto:j.yorke@comcast.net]=20
Sent: Wednesday, October 13, 2004 3:10 PM
To: = Wilson,=20 Jim
Subject: Re: Varian CL2100EX CARR/FOIL=20 Interlocks

Jim,

I have also experienced this problem = the past=20 couple months, same error codes and the only thing I can do to clear = them=20 is if I am lucky, I can manually calibrate the carousel via the = pcb, but=20 sometimes I have to remove lead, manually seat the pin and then run the=20 calibrate cycle. Haven't come up with anything yet except to = change the=20 board as you suggest. Have not had time to do that yet, please let = me know=20 if you get any info on this, or if your successful with the board=20 change.

Not sure what is involved, I would = thing it would=20 be fine, if you removed the existing pcb, measured the resistance of all = the=20 BMAG energy pots, then set the resistance to equal the same values on = the new=20 one. Install the board, then set the Bmag trip levels for each=20 energy. I highly recommend having physics do a quick energy check = before=20 going clinical again though.

Jeremy

----- Original Message -----
From:=20 JamesR.Wilson@providence.org= =20

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