From dennefel at iap.fr Sat Jan 28 13:10:51 2006 From: dennefel at iap.fr (Michel Dennefeld) Date: Sat, 28 Jan 2006 16:10:51 -0000 Subject: CCD-world: Reference for CCD conference In-Reply-To: <421072B1.3090803@fr.thalesgroup.com> References: <67.3e0f1ef8.2f3919ed@aol.com> <421072B1.3090803@fr.thalesgroup.com> Message-ID: <43DB9596.5050009@iap.fr> Hello, Can one of you tell me what is the exact reference to quote for a paper given at the Detectors conference last june in Sicily? J.W.Beletic Editor? Title: Scientific Detectors 2005 ?? Who is the Publisher? And (by the way), when is it supposed to appear? I need it to edit other papers refering to that, with incomplete references... Thanks a lot, Michel From grahmer at astro.caltech.edu Tue Feb 14 21:50:22 2006 From: grahmer at astro.caltech.edu (Gustavo Rahmer) Date: Wed, 15 Feb 2006 00:50:22 -0000 Subject: CCD-world: 124-pin ZIF socket Message-ID: <43F27AF4.1010801@astro.caltech.edu> Hello ccd-world, I am looking for a IC51-124-410-1 ZIF socket, which accommodates a 124-pin LCC package (typical RIO 1Kx1K package) for a fanout board that we are building. The only manufacturers I have found so far, Yamaichi and Adapters-Plus, don't have it in stock, and indicate a lead time of 2 months. Does anybody know of other source for this socket, or even better, have a spare one in hand? Thanks, Gustavo. -- Gustavo Rahmer Caltech Optical Observatories Pasadena, California U.S.A. Phone: 1-626-395-2899 Fax: 1-626-568-1517 E-mail: grahmer at astro.caltech.edu http://www.astro.caltech.edu From mvp at motionvideoproducts.com Thu Feb 2 21:05:01 2006 From: mvp at motionvideoproducts.com (Kris Balch) Date: Fri, 03 Feb 2006 00:05:01 -0000 Subject: CCD-world: =?iso-8859-1?q?Urgently_needed=3A__Pixel_Vision_Veloci?= =?iso-8859-1?q?Cam_VC_105A_camera_or_a_SITe=AE_S105A_CCD_sensor?= Message-ID: <001801c62854$1fb976d0$6500a8c0@wizzard> Hello, I am trying to locate a repair a Pixel Vision VelociCam VC 105A. This camera is a high-performance 14-bit camera which has a SITe? S105A, a 4 output back-illuminated scientific grade CCD. To fix the camera, I am looking for someone who would like to sell the same camera used or someone who has the sensor, a SITe? S105A grader 0 or grade 1. Please let me know if you have either the camera or the CCD for purchase. Best Regards, Kris Balch Motion Video Products 3949 Clairemont DR Ste 18 San Diego, CA 92117 858-484-1562 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060203/f10a38de/attachment.html From mvp at motionvideoproducts.com Mon Feb 20 18:01:28 2006 From: mvp at motionvideoproducts.com (Kris Balch) Date: Mon, 20 Feb 2006 21:01:28 -0000 Subject: CCD-world: WANTED: used Pixel Vision VelociCam VC 105A Message-ID: <003d01c63660$bb74eb80$6500a8c0@wizzard> Hello, I am trying to locate a used Pixel Vision VelociCam VC 105A. This camera is a high-performance 14-bit camera which has a SITe? S105A, a 4 output back-illuminated scientific grade CCD. Please let me know if you have either the camera or the CCD for purchase. Best Regards, Kris Balch Motion Video Products 3949 Clairemont DR Ste 18 San Diego, CA 92117 858-484-1562 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060220/2b4c1e6e/attachment.html From trajkumar at ibpoil.com Tue Jan 17 03:43:39 2006 From: trajkumar at ibpoil.com (Kumar T Raj) Date: Tue, 17 Jan 2006 06:43:39 -0000 Subject: CCD-world: Contamination ? of PPtF CCDs Message-ID: E??z?_??azj+z)?????*'?w+???',????{.??b?{^r???2M )CD? aD9???Z??'3 j?Zr?????+???uDK??i??0??b?z??n???z???_?q?(?Wj?Zr?????M:?]{??w????????!?????? From wuyanpeng00 at tsinghua.org.cn Tue Mar 14 04:17:28 2006 From: wuyanpeng00 at tsinghua.org.cn (=?gb2312?B?zuTR08X0?=) Date: Tue, 14 Mar 2006 16:17:28 +0800 Subject: CCD-world: CCD imaging problem Message-ID: <342324249.06590@tsinghua.org.cn> I??ve got a imaging problem with an FT CCD chip TH78xx. The first time it is applied power and taking a picture , the picture only shows dark background on top and bright area at bottom. With more incident light, the bright area will expand upward. The gray level of the background is essentially unchanged with the light variation. The driving clocks and bias voltage for the CCD have been checked with power on. The results conform to the values listed in the datasheet. The possibility of incorrect driving can be excluded, because with another CCD, the image is correct, without any symptoms of this CCD. If this CCD is damaged, which part is damaged? the imaging zone? the storage zone? How can it be identified? and the cause of damage? Thanks a lot. From tabbott at ctio.noao.edu Tue Mar 14 11:09:31 2006 From: tabbott at ctio.noao.edu (Tim Abbott) Date: Tue, 14 Mar 2006 11:09:31 -0400 Subject: CCD-world: Oops Message-ID: <4416DCAB.7010003@ctio.noao.edu> Hi All, An email from a subscriber (thanks John!) yesterday alerted me to CCD-world's extended period of silence. I had been assuming that no-one had anything to talk about. More than two months of that seemed somewhat unlikely and the complete lack of junk mail should really have woken me up earlier but it's been summer down here and we're all a bit dozey. Some investigation showed that the mailing list server had been, er, turned off, and we're not sure since when. Anyway, it's back now. I've let through those messages that might still have relevance. My apologies for the inadvertant hiatus, normal service is now resumed. Cheers, Tim Abbott Moderator, CCD-world -- Tim Abbott, tabbott at noao.edu, www.ctio.noao.edu/~tmca CTIO, Casilla 603, La Serena, Chile, +56 51 205200 or NOAO/CTIO, P.O. Box 26732, Tucson, AZ 85726-6732, USA, +1 520 318 8259 ---- If you don't look hard enough, you'll see things that aren't there ---- From a.g.basden at durham.ac.uk Tue Mar 14 11:05:55 2006 From: a.g.basden at durham.ac.uk (Alastair Basden) Date: Tue, 14 Mar 2006 15:05:55 +0000 (GMT) Subject: CCD-world: 124-pin ZIF socket In-Reply-To: <43F27AF4.1010801@astro.caltech.edu> References: <43F27AF4.1010801@astro.caltech.edu> Message-ID: Hi, I'm currently interested in looking for gated CCDs. I know that Lincoln Labs can supply them, but how about other suppliers? Does anyone have any experience/recommendations with these devices? Cheers, alastair. --------------------------------------------------------------------------- Dr. Alastair Basden, Senior Research Associate, Durham University --------------------------------------------------------------------------- Centre for Advanced Instrumentation, Department of Physics, South Road, Durham, DH1 3LE Tel: 0191 33 43584, Fax: 0191 33 43609 --------------------------------------------------------------------------- On Tue, 14 Feb 2006, Gustavo Rahmer wrote: References: <1118bcc90601301115k76b25eaavb6220a90cb701f7f@mail.gmail.com> Message-ID: <1118bcc90603140859s381f4663q298e447751192737@mail.gmail.com> Due to problems with posting to CCD-World the advertisement below is somewhat late. Nevertheless, we are able to take late applications for this post. If you are considering making a late application, please contact Michelle Creech-Eakman at the earliest opportunity. The Magdalena Ridge Observatory Interferometer (MROI) is a facility class astronomical optical interferometer being built by New Mexico Tech (NMT) in the Magdalena mountains W of Socorro, NM. We have an immediate opening for an Infrared Camera Scientist to lead the design, development and deployment of several near-infrared fringe-tracking and science cameras for MROI. For further details see: http://www.mro.nmt.edu/Employment/ David Buscher System Architect Magdalena Ridge Observatory Interferometer From ahoffman at raytheon.com Tue Mar 14 16:36:02 2006 From: ahoffman at raytheon.com (Alan W Hoffman) Date: Tue, 14 Mar 2006 12:36:02 -0800 Subject: CCD-world: Fw: Reference for CCD conference Message-ID: The proceedings from the conference have just been published: "Scientific Detectors for Astronomy 2005." The editors are Jenna Beletic, James Beletic, and Paola Amico. It's published by Springer and is also referenced as Volume 336 of the "Astrophysics and Space Science Library." My copy just arrived this week; so it is hot off the presses. Alan Hoffman ----- Forwarded by Alan W Hoffman/RWS/Raytheon/US on 03/14/2006 12:28 PM ----- Stefan T Baur/RWS/Raytheon /US To Alan W Hoffman/RWS/Raytheon/US at MAIL 03/14/2006 07:00 cc AM Subject Fw: CCD-world: Reference for CCD conference Do you know the answer Stefan T. A. Baur Director Technology & Advanced Programs 805-562-2246 Office 805-746-0121 Cell Raytheon Vision Systems ----- Forwarded by Stefan T Baur/RWS/Raytheon/US on 03/14/2006 07:00 AM ----- Michel Dennefeld Sent by: To ccd-world-bounces ccd-world at ctio.noao.edu @ctio.noao.edu cc Subject 01/28/2006 08:02 CCD-world: Reference for CCD AM conference Please respond to Optical & SWIR imager development for professional astronomy Hello, Can one of you tell me what is the exact reference to quote for a paper given at the Detectors conference last june in Sicily? J.W.Beletic Editor? Title: Scientific Detectors 2005 ?? Who is the Publisher? And (by the way), when is it supposed to appear? I need it to edit other papers refering to that, with incomplete references... Thanks a lot, Michel -- CCD-world -- CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu Standard replies will go to the list; address personal replies manually. For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world From jlaxer at rwsc.com Wed Mar 15 12:26:53 2006 From: jlaxer at rwsc.com (Jennifer C Laxer) Date: Wed, 15 Mar 2006 08:26:53 -0800 Subject: CCD-world: Program Manager Position - Rockwell Scientific Company, Camarillo, California Message-ID: Program Manager Rockwell Scientific Company Camarillo, California ------------------------------ The Rockwell Scientific Company (RSC) Imaging Division is an innovative and growing segment of RSC, specializing in high end, state-of-the-art infrared detector arrays. Rockwell Scientific is looking for a dynamic and enthusiastic Program Manager for the Astronomy group, to work on programs associated with ground and space-based astronomy. Customers include NASA and all the world?s large astronomical observatories. The Program Manager will work directly with customers to define specifications, provide technical support, and manage programs form from conception to delivery of product. The Program Manager will support RSC?s ongoing efforts to deliver detector arrays for the NIRCam, NIRSpec, and FGS instruments of the James Webb Space Telescope. The encumbent will also be active with our evolving work on very large format infrared arrays and other more exotic and innovative detector technologies that we are planning to bring to the astronomy market in the next few years. Skills/Experience: Experienced with developing and tracking a project schedule and budget Three years of industry experience or an advanced degree Demonstrated technical aptitude Working knowledge of infrared physics/astronomy a plus Demonstrated ability to manage technical projects Proven ability to develop rapport and establish ongoing productive relationships Candidate must be a team player and work well with others May be required to present a paper at an appropriate conference once a year Education: B.S. Physics or related engineering discipline required; MS or PhD desirable Security Clearance: Due to Government Security Requirements, the candidate must be a U.S. Citizen or Permanent Resident Visit the RSC Careers page to apply. http://www.rockwellscientific.com/index.html EEO/AA/M/F/D/V Employer Jennifer Laxer Sr. HR Generalist Rockwell Scientific 1049 Camino Dos Rios Thousand Oaks, CA 91360 P: 805/373-4339 F: 805/373-4797 www.rockwellscientific.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060315/f6d08e0b/attachment.html From jacoby at noao.edu Thu Mar 30 18:21:47 2006 From: jacoby at noao.edu (George Jacoby) Date: Thu, 30 Mar 2006 15:21:47 -0700 (US/Arizona ) Subject: CCD-world: CCD/IR Engineer for WIYN/Kitt Peak Message-ID: Kitt Peak and the WIYN Observatory are looking for a detector and electronics engineer familiar with astronomical facilities. Job Ad is attached. George Jacoby Director, WIYN Observatory jacoby at wiyn.org (520) 318-8292 -------------- next part -------------- A non-text attachment was scrubbed... Name: EE_job_ad.pdf Type: application/pdf Size: 47125 bytes Desc: Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060330/d61ac992/attachment.pdf From cdm at ast.cam.ac.uk Tue Apr 4 10:11:16 2006 From: cdm at ast.cam.ac.uk (Craig Mackay) Date: Tue, 04 Apr 2006 15:11:16 +0100 Subject: CCD-world: Spare SITe SI502 CCD wanted Message-ID: <44327E84.9030608@ast.cam.ac.uk> Dear CCD World I have a colleague who has an ancient CCD system needed to complete a laboratory study. The CCD looks to have suffered static damage and the reset drain is now in smoke-emitting mode. Does anyone out there have one available that they might be prepared to part with? Best Wishes Craig Mackay. From gsims at specinst.com Tue Apr 4 12:15:00 2006 From: gsims at specinst.com (Gary Sims) Date: Tue, 4 Apr 2006 09:15:00 -0700 Subject: CCD-world: Spare SITe SI502 CCD wanted In-Reply-To: <44327E84.9030608@ast.cam.ac.uk> Message-ID: Craig, I have some old TK512 frontside parts - engineering grade. If you want them you can have them. -----Original Message----- From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu]On Behalf Of Craig Mackay Sent: Tuesday, April 04, 2006 7:11 AM To: Optical & SWIR imager development for professional astronomy Subject: CCD-world: Spare SITe SI502 CCD wanted Dear CCD World I have a colleague who has an ancient CCD system needed to complete a laboratory study. The CCD looks to have suffered static damage and the reset drain is now in smoke-emitting mode. Does anyone out there have one available that they might be prepared to part with? Best Wishes Craig Mackay. -- CCD-world -- CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu Standard replies will go to the list; address personal replies manually. For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world From Peter.Pool at e2v.com Wed Apr 5 03:35:51 2006 From: Peter.Pool at e2v.com (Pool, Peter) Date: Wed, 5 Apr 2006 08:35:51 +0100 Subject: CCD-world: Spare SITe SI502 CCD wanted Message-ID: <3EF8180825045544B765C027D8E950EE042D99D2@whl60.e2v.com> Good luck in your search Craig. If you're unable to find anything, you may wish to try a chip with e very similar format, e2v CCD77-00, in front illuminated: http://www.e2vtechnologies.com/datasheets/charge_coupled_devices_ccds/ccd77- 00fi.pdf or back illuminated : http://www.e2vtechnologies.com/datasheets/charge_coupled_devices_ccds/ccd77- 00bi.pdf Regards Pete -----Original Message----- From: Craig Mackay [mailto:cdm at ast.cam.ac.uk] Sent: 04 April 2006 15:11 To: Optical & SWIR imager development for professional astronomy Subject: CCD-world: Spare SITe SI502 CCD wanted Dear CCD World I have a colleague who has an ancient CCD system needed to complete a laboratory study. The CCD looks to have suffered static damage and the reset drain is now in smoke-emitting mode. Does anyone out there have one available that they might be prepared to part with? Best Wishes Craig Mackay. -- CCD-world -- CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu Standard replies will go to the list; address personal replies manually. For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world From cdm at ast.cam.ac.uk Thu Apr 6 11:19:56 2006 From: cdm at ast.cam.ac.uk (Craig Mackay) Date: Thu, 06 Apr 2006 16:19:56 +0100 Subject: CCD-world: Spare SITe SI502 CCD wanted In-Reply-To: <3EF8180825045544B765C027D8E950EE042D99D2@whl60.e2v.com> References: <3EF8180825045544B765C027D8E950EE042D99D2@whl60.e2v.com> Message-ID: <4435319C.1090701@ast.cam.ac.uk> An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060406/bacc4dbf/attachment.html From droege at fastmail.fm Fri Apr 14 17:03:17 2006 From: droege at fastmail.fm (Thomas F. Droege) Date: Fri, 14 Apr 2006 16:03:17 -0500 Subject: CCD-world: The Amateur Sky Survey Message-ID: <1145048597.25771.259120736@webmail.messagingengine.com> The Amateur Sky Survey (tass) is closing it's doors. The reason for posting here is that some of the equipment might be useful to the scientific community. The idea of tass was to build camera systems suitable for an all sky survey and give them away (without software) to programmers found on the internet. I call this the "Field of Dreams" scheme. If you build the systems, the software will come. The scheme actually worked. Four dual camera systems were given away and two of the recipients wrote the code needed. Three dual systems were operated at Batavia, IL and have taken about 230 million measurements over three years of stars in the northern sky. Each consists of simultaneous measurements in V and I in the range of 7 to 15. The systems consist of two 2k x 2k CCD442A detectors and 100 mm dia f/4 optics on a simple polar mount. The optics are narrow band to match the filter used. This allowed an improved flat field for the 5 element optics. The best description is at: http://www.tass-survey.org/tass/showtell/st0010.html More information than you can stand at: http://www.tass-survey.org/tass/tass.shtml The electronics is home designed and works just fine. The best I have done for noise is 10 e- or so but I only cool to -20 C. No electronic reason not to get to 3 e- with proper cooling. The electronics is 2 channel and there is some cross talk 1/1000 or so. Not critical for me since I am sky noise limited. One could always run single channel systems. There is lots of spare electronics. There is lots of stuff available here in Batavia, IL that will go into the ash can with my impending demise. I have cancer and it has gotten to the state that I can no longer scramble up on the roof to run the telescopes. There are pretty good drawings for all the parts and good electronics drawings. Some of the items: 16 completed and tested 2k x 2k CCD442A cameras. TEC cooled each camera has a built in V or I filter. There are a few spare 2" x 2" filters. 2 Unused CCD442As lumigen coated, taped windows 16 sets of dual channel electronics. 5 completed dual channel systems 32 lenses various numbers of B, V, I, and R Of the 20 CCD442A CCDs, most are class 3 but the company was generous and they are probably better than class 3. They look very good to me. Many computers running on linux. System requires an ISA slot so I have a big collection of recent ISA slot computers that run linux. Contact Tom Droege droege at fastmail.fm I will accumulate requests and then give stuff away for the best science use. -- Thomas F. Droege droege at fastmail.fm From Chuck at suni.com Wed May 3 16:43:31 2006 From: Chuck at suni.com (Chuck Koehler) Date: Wed, 3 May 2006 13:43:31 -0700 Subject: CCD-world: Information "Quest" Message-ID: Hello Everyone, I am in search of some information. Does anyone have any of the old Pulse Instruments CCD clocking and test hardware? PI-5800A Stimulus Mainframe PI-4012 Stimulus Mainframe Plug-in modules 451, 451A, 454, 458 PI modified TM506 power racks I've recently inherited these, but have absolutely NO documentation on anything! Pulse Instruments did not keep any copies of manuals, drawings, power supply hook-ups, nothing. I am desperately trying to find someone with manuals and/or service documents they don't need, or have copies I could borrow, copy, and return. I also need a PI-952 programming module. If anyone can help, I would greatly appreciate it. Thanks for your help!! Chuck Koehler Suni Medical Imaging Inc. chuck at suni.com The information contained in this message is privileged, confidential or otherwise protected from use and disclosure. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying or dissemination of this message, or the taking of any action in reliance on its contents, or other use is strictly prohibited. If you received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Suni Medical Imaging, Inc. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060503/427c299c/attachment.html From tg.burke at ngc.com Thu May 4 15:01:55 2006 From: tg.burke at ngc.com (Burke, Thomas G.) Date: Thu, 4 May 2006 15:01:55 -0400 Subject: CCD-world: Information "Quest" Message-ID: We have some here, but I'm not sure if I've got any documentation anywhere reachable... Let me look for you. ________________________________ From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu] On Behalf Of Chuck Koehler Sent: Wednesday, May 03, 2006 4:44 PM To: ccd-world at ctio.noao.edu Subject: CCD-world: Information "Quest" Hello Everyone, I am in search of some information. Does anyone have any of the old Pulse Instruments CCD clocking and test hardware? PI-5800A Stimulus Mainframe PI-4012 Stimulus Mainframe Plug-in modules 451, 451A, 454, 458 PI modified TM506 power racks I've recently inherited these, but have absolutely NO documentation on anything! Pulse Instruments did not keep any copies of manuals, drawings, power supply hook-ups, nothing. I am desperately trying to find someone with manuals and/or service documents they don't need, or have copies I could borrow, copy, and return. I also need a PI-952 programming module. If anyone can help, I would greatly appreciate it. Thanks for your help!! Chuck Koehler Suni Medical Imaging Inc. chuck at suni.com The information contained in this message is privileged, confidential or otherwise protected from use and disclosure. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying or dissemination of this message, or the taking of any action in reliance on its contents, or other use is strictly prohibited. If you received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Suni Medical Imaging, Inc. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060504/ba5d023f/attachment.html From tg.burke at ngc.com Thu May 4 15:50:29 2006 From: tg.burke at ngc.com (Burke, Thomas G.) Date: Thu, 4 May 2006 15:50:29 -0400 Subject: CCD-world: Information "Quest" Message-ID: Looking at PI's web pages, they claim the new stuff to be backward compatible. I'm not sure I can get you copies of documentation, but I *do* have a copy of PI-PAT & PI-Controller. I believe copyright issues prevent me from sending them to you, though... ________________________________ From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu] On Behalf Of Chuck Koehler Sent: Wednesday, May 03, 2006 4:44 PM To: ccd-world at ctio.noao.edu Subject: CCD-world: Information "Quest" Hello Everyone, I am in search of some information. Does anyone have any of the old Pulse Instruments CCD clocking and test hardware? PI-5800A Stimulus Mainframe PI-4012 Stimulus Mainframe Plug-in modules 451, 451A, 454, 458 PI modified TM506 power racks I've recently inherited these, but have absolutely NO documentation on anything! Pulse Instruments did not keep any copies of manuals, drawings, power supply hook-ups, nothing. I am desperately trying to find someone with manuals and/or service documents they don't need, or have copies I could borrow, copy, and return. I also need a PI-952 programming module. If anyone can help, I would greatly appreciate it. Thanks for your help!! Chuck Koehler Suni Medical Imaging Inc. chuck at suni.com The information contained in this message is privileged, confidential or otherwise protected from use and disclosure. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying or dissemination of this message, or the taking of any action in reliance on its contents, or other use is strictly prohibited. If you received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Suni Medical Imaging, Inc. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060504/d6950244/attachment.html From Steve at AcumenScientific.com Thu May 4 19:48:21 2006 From: Steve at AcumenScientific.com (Steve Solomon) Date: Thu, 4 May 2006 16:48:21 -0700 Subject: CCD-world: Information "Quest" In-Reply-To: Message-ID: <011401c66fd5$3a098f20$6401a8c0@Steve> Try the gang at Raytheon Vision Systems (formerly SBRC), their test lab is loaded with those old PI boxes. Same for Rockwell Scientific. Steve Solomon Acumen Scientific VOX: 805.708.5084 FAX: 805.683.2464 http://www.acumenscientific.com/ _____ From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu] On Behalf Of Burke, Thomas G. Sent: Thursday, May 04, 2006 12:02 PM To: Optical & SWIR imager development for professional astronomy Subject: Re: CCD-world: Information "Quest" We have some here, but I'm not sure if I've got any documentation anywhere reachable... Let me look for you. _____ From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu] On Behalf Of Chuck Koehler Sent: Wednesday, May 03, 2006 4:44 PM To: ccd-world at ctio.noao.edu Subject: CCD-world: Information "Quest" Hello Everyone, I am in search of some information. Does anyone have any of the old Pulse Instruments CCD clocking and test hardware? PI-5800A Stimulus Mainframe PI-4012 Stimulus Mainframe Plug-in modules 451, 451A, 454, 458 PI modified TM506 power racks I've recently inherited these, but have absolutely NO documentation on anything! Pulse Instruments did not keep any copies of manuals, drawings, power supply hook-ups, nothing. I am desperately trying to find someone with manuals and/or service documents they don't need, or have copies I could borrow, copy, and return. I also need a PI-952 programming module. If anyone can help, I would greatly appreciate it. Thanks for your help!! Chuck Koehler Suni Medical Imaging Inc. chuck at suni.com The information contained in this message is privileged, confidential or otherwise protected from use and disclosure. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying or dissemination of this message, or the taking of any action in reliance on its contents, or other use is strictly prohibited. If you received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Suni Medical Imaging, Inc. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060504/6bfef993/attachment.html From Peter.McNulty at goodrich.com Fri May 5 13:40:34 2006 From: Peter.McNulty at goodrich.com (McNulty, C Peter (Danbury CT)) Date: Fri, 5 May 2006 13:40:34 -0400 Subject: CCD-world: Information "Quest" Message-ID: We have a lot of this equipment in our CCD Lab here. Have you tried contacting Pulse Instruments for archives on their documentation? http://www.pulseinstruments.com/product.htm Best Regards, Pete Peter C. McNulty Principal Systems Engineer CCD & Analog Sensor Technology Goodrich Electro-Optical Systems 100 Wooster Heights Rd. Danbury, CT 06883 Tel: 203-797-6285 FAX 203-797-5069 E-mail: peter.mcnulty at goodrich.com ________________________________ From: ccd-world-bounces at ctio.noao.edu [mailto:ccd-world-bounces at ctio.noao.edu] On Behalf Of Chuck Koehler Sent: Wednesday, May 03, 2006 4:44 PM To: ccd-world at ctio.noao.edu Subject: CCD-world: Information "Quest" Hello Everyone, I am in search of some information. Does anyone have any of the old Pulse Instruments CCD clocking and test hardware? PI-5800A Stimulus Mainframe PI-4012 Stimulus Mainframe Plug-in modules 451, 451A, 454, 458 PI modified TM506 power racks I've recently inherited these, but have absolutely NO documentation on anything! Pulse Instruments did not keep any copies of manuals, drawings, power supply hook-ups, nothing. I am desperately trying to find someone with manuals and/or service documents they don't need, or have copies I could borrow, copy, and return. I also need a PI-952 programming module. If anyone can help, I would greatly appreciate it. Thanks for your help!! Chuck Koehler Suni Medical Imaging Inc. chuck at suni.com The information contained in this message is privileged, confidential or otherwise protected from use and disclosure. If you are not the intended recipient, you are hereby notified that any review, disclosure, copying or dissemination of this message, or the taking of any action in reliance on its contents, or other use is strictly prohibited. If you received this message in error, please notify us immediately by replying to the message and deleting it from your computer. Thank you. Suni Medical Imaging, Inc. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060505/cb3f1647/attachment.html From tabbott at ctio.noao.edu Tue Jun 6 10:19:41 2006 From: tabbott at ctio.noao.edu (Tim Abbott) Date: Tue, 06 Jun 2006 10:19:41 -0400 Subject: CCD-world: CCD-world lives! Message-ID: <44858EFD.2070107@ctio.noao.edu> Hi All, It was good to see many of the subscribers to this list at the SPIE world, that interest in CCDs, CMOS and infrared detectors continued unabated and there are some very impressive programs under way, so I thought it might be a good idea to remind everyone of the list. Traffic has been almost nonexistent for months now! I hope that this is not because of the unfortunate outage earlier in the year, but CCD-world is now very much alive and kicking. Membership currently stands at 521 detector mavens world wide and I know for a fact that plenty have something to say, even if it's only "my mosaic is bigger'n yours" (or flatter, or faster, or quieter, or more sensitive)! All the best, Tim Abbott Your moderator From Paul.Jorden at e2v.com Tue Jun 6 10:53:30 2006 From: Paul.Jorden at e2v.com (Jorden, Paul) Date: Tue, 6 Jun 2006 15:53:30 +0100 Subject: CCD-world: e2v developments Message-ID: <3EF8180825045544B765C027D8E950EE0339275D@whl60.e2v.com> Hi all, since Tim has just reminded us of ccd-world, and encouraged some activity, I thought I'd kick off! at Orlando I had interesting discussions with many astronomers about some of recent e2v developments- a) development of large-area 'fully depleted' CCDs; see SPIE talk or ask me for copy. this work is ongoing with further devices planned beyond our prototype 2k*4k chips. similar to LBNL types, but using e2v manufacturing techniques for large qty supply. b) graded anti-reflection coating (described at SDW2005, Taormina). science grade 2k*4k devices recently made with custom coating to really optimise device sensitivity to match spatial mapping of projected spectrum. useful for fixed-format spectrographs. c) custom 240*240 pixel, electron-multiplied wavefront sensor chip (with ESO). sub-electron noise at > 1000 fps. important for AO of large telescopes. Of course the future ELTs will require significant evolutions of WFS technology..... d) a new CCD231 series of devices with 15 um pixels. 4k*4k backthinned device samples due early 2007, with other formats (including 8k*3k) to be made. usual QE performance, as well as expected 2 electron readout noise. Best Regards to all, including many of you whom I spoke with in Orlando. Paul J _________________________________________________________ Dr Paul Jorden, CCD Sensors, e2v technologies Waterhouse Lane, Chelmsford, Essex, CM1 2QU, UK Tel: +44 (0)1245 -453458 (direct), -493493 (switchboard) Fax: +44 (0)1245 453224 (local), -492492 (central) http://imaging.e2v.com From tabbott at ctio.noao.edu Thu Jun 15 13:32:26 2006 From: tabbott at ctio.noao.edu (Tim Abbott) Date: Thu, 15 Jun 2006 13:32:26 -0400 Subject: CCD-world: Getter tubes Message-ID: <449199AA.3020404@ctio.noao.edu> I realize that this is perilously close to junk mail, but I am curious, does anyone have any experience with getters like the following? Cheers, Tim High capacity getter for LN2 cooled, vacuum insulated CCD cameras/ chambers Increase the power and lifetime of the vacuum insulated LN2 depot with the new Alvatec high capacity getter tube TG. The TG was specially designed to optimize vacuum insulations. The gas sorption capacities are up to 3000 times higher, at room temperature, compared to existing non evaporable getter solutions. All relevant gases are absorbed extremely well, especially H2, which can not be adsorbed by molecular sieve absorbers. Get a significant lower boil off effect and less refill cycles of the cooling medium. The TG maintains the insulating vacuum level for years at constant, perfect level. Advantages at a glance: ? Easy handling ? Very low activation temperature ? Extreme high sorption capacity at room temperature ? High sticking rate due to chemical sorption ? Flexible design for different customer requirements ? Good cost-effectiveness I?d like to answer all any qestions, just call me under or write me an email, my Regards -- Georg Begusch Tel.: +43 4262 2644 ? 1329 Fax.: +43 1-81-749-553-768 Mailto: g.begusch at alvatec.com Homepage: www.alvatec.com From geary at cfa.harvard.edu Mon Jun 19 10:34:07 2006 From: geary at cfa.harvard.edu (John Geary) Date: Mon, 19 Jun 2006 10:34:07 -0400 Subject: CCD-world: Fwd: Sixth International Conference on Scientific Optical Imagaing Message-ID: <7.0.1.0.0.20060619103217.03b2f2d8@cfa.harvard.edu> >From: "Melanie Honeycutt" Subject: Sixth International Conference on Scientific Optical Imagaing >Date: Mon, 19 Jun 2006 07:02:32 -0700 > >I wish to extend my personal invitation to you to attend the Sixth >International Conference on Scientific Optical Imaging at the end of >November. We have been very fortunate with ICSOI to attract and >bring together prominent experts from around the world who share, in >the broadest sense, a common interest in scientific optical >imaging. I am hoping you can add to the excitement of sharing new >ideas, discoveries and research with a paper on your recent work. > >Once again we are meeting in beautiful Cozumel, a Mexican island on >the western island side of the Caribbean. The conference dates are >November 29th thru December 3rd and, as in the past, meetings will >occur in the afternoons and evenings of November 30th, December 1st >and 2nd. This allows the opportunity to explore the unique >resources of this island during the mornings. Family members are >welcome to accompany participants. They can continue to enjoy >Cozumel's beauty and various activities while we work. > >Due to the overwhelmingly positive reaction to the 2003 meeting, the >conference will once again be held at El Presidente Intercontinental >Resort and Spa. Special discount rates will be given to ICSOI >attendees. There are a variety of activities for our non-divers: >exploring ancient Mayan ruins, horseback riding, golfing, jeep tours >of the jungle. Of course, the diving is absolutely >spectacular. For further information about the hotel and the >activities they have to offer, please check their website: >http://www.cozumel.intercontinental.com/. > >For additional information, we invite you to visit the conference >website at: >http://icsoi.arizona.edu/. The ICSOI >website will be continually undated as we approach the conference >dates. Conference registration can be completed online. > >On behalf of everyone who will be in attendance at our conference, I >hope you will be able to participate. I look forward to hearing from you. > >With best wishes, > >Bonner > >M. Bonner Denton -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060619/6c518d9d/attachment.html From tmadden at aps.anl.gov Mon Jun 19 15:52:35 2006 From: tmadden at aps.anl.gov (Tim Madden) Date: Mon, 19 Jun 2006 14:52:35 -0500 Subject: CCD-world: Large Be Windows Message-ID: <44970083.3070808@aps.anl.gov> We are building a CCD detector system for synchrotron applications with a large Beryllium (Be) window to hold a vacuum. The manufacturer, Brush-Wellman claims they can make these windows. We trust Brush-Wellman, but have no experience with large windows in a lab setting. Does anyone out there have experience with very large Be windows? Tim Madden Argonne National Lab. From rtubbs at arcetri.astro.it Wed Jun 21 10:46:36 2006 From: rtubbs at arcetri.astro.it (Bob Tubbs) Date: Wed, 21 Jun 2006 16:46:36 +0200 Subject: CCD-world: L3 Vision theoretical response curves In-Reply-To: <1145048597.25771.259120736@webmail.messagingengine.com> References: <1145048597.25771.259120736@webmail.messagingengine.com> Message-ID: <44995BCC.6060805@arcetri.astro.it> Dear All, A couple of people ask me for information about calculating the theoretical response curves for L3Vision multiplication registers at SPIE Orlando last month. I've added lots of comments to my code (now in IDL), and have attached it below so that it is permanently archived on the CCD-World website. I have also put the code on my webpage, with a few examples: http://www.arcetri.astro.it/~rtubbs/l3vision/ Unfortunately I may have to delete this information from the website in the future due to space limitations For those unfamiliar with the theoretical results given in Mackay et al 2001 (Proc SPIE 4306, 289-298, 2001) and Tubbs 2003 (http://www.mrao.cam.ac.uk/telescopes/coast/theses/rnt/), what is calculated is the probability distribution you would get if you did an *infinite* number of Monte-Carlo simulations of an L3Vision electron multiplication register with the given properties. Some background to the calculation method is given at: http://www.mrao.cam.ac.uk/telescopes/coast/theses/rnt/node70.html The inputs to the procedure are listed in the header for the procedure. The "light level" (actually mean number of electrons entering the EM register), number of EM gain stages, gain, EM register Clock Induced Charge and Gaussian analogue readout noise are all given by the user. What is returned is the probability distribution for the number of output electrons from the register -- you can use this probability distribution as a look-up table to do very fast Monte Carlo simulations, or can use it directly in calculating the SNR of a device. *Instructions for use* Save the following text to a file called l3ccd_sim.pro and in IDL type: .r l3ccd_sim .r l3ccd_sim l3ccd_sim,[5.0, 1.0, 0.2, 0.0], 100, 1000.0, 0.0001, 100.0, 1000.0, output_electrons, /verbose pro l3ccd_sim, input_electrons, register_length, register_gain, stage_cic, analogue_noise, bias, $ output_electrons, accuracy=accuracy, verbose=verbose ; Model of an L3CCD multiplication register ; Used for plots in Mackay et al 2001 (Proc SPIE 4306, 289-298, 2001) ; and Tubbs 2003 (http://www.mrao.cam.ac.uk/telescopes/coast/theses/rnt/) ; Algorithm by Robert Tubbs (rnt20 (at) cantab.net) -- December 2001 ; This (commented!) version of the software -- June 2006 ; ; New additions (2006): ; 1. Includes Clock Induced Charge (CIC) in the gain register ; 2. Converted to IDL ; 3. Includes /verbose mode, which provides information for users ; A detailed description of the algorithm is shown at: ; http://www.mrao.cam.ac.uk/telescopes/coast/theses/rnt/node70.html ; Suggested compilation and calling sequence ; .r l3ccd_sim ; .r l3ccd_sim ; l3ccd_sim,[5.0, 1.0, 0.2, 0.0], 100, 1000.0, 0.0001, 100.0, 1000.0, output_electrons, /verbose ; This calculates output probability distributions for 4 different ; light levels: [5.0, 1.0, 0.2, 0.0] electrons input (see procedure ; definition at top for description of parameters) ; Calling parameters: ; ; input_electron = mean number of electrons in, or an array of ; numbers if several input levels are to be ; investigated simultaneously ; register_length = number of stages in multiplication register ; register_gain = total gain of multiplication register ; stage_cic = mean Clock Induced Charge in a single ; register stage ; analogue_noise = Gaussian analogue readout noise to be ; applied (electrons rms) ; bias = The bias level to be applied to the output ; (in electrons) ; output_electrons = returns array containing probability ; distributions for case of input electrons ; from a Poisson distribution with mean of ; input_electron, including CIC ; ; Optional calling parameters ; ; /verbose = Produce lots of plots and print text ; descriptions of the calculations (slow) ; accuracy = [accuracy] = Adjust the accuracy of the calculations ; (value of accuracy is only valid at low ; light levels) ; If accuracy not specified by user, uses default accuracy if (n_elements(accuracy) eq 0) then accuracy = 1.0E-10 ; If running in verbose mode, start printing information to the ; screen if keyword_set(VERBOSE) then print, $ 'First calculate the fundamental properties of the multiplication register' ; Calculate distribution produced by zero input electrons with CIC, ; and distribution produce by exactly one input electron with no CIC. l3ccd_sim_1_electron, register_length, register_gain, stage_cic, $ output_single_electron, output_cic, accuracy=accuracy, verbose=verbose if keyword_set(VERBOSE) then print, $ 'The fundamental properties of the register have now been calculated' ; What is the highest mean electron rate the user has requested highest_light_level = max(input_electrons) ; Maximum likely number of electrons (up to number of electrons which ; occur with the probability equal to the user specified probability ; accuracy) coming from the Poisson-distributed input max_electrons_in_register=sqrt((register_gain*alog(accuracy))^2+ $ (register_gain*(highest_light_level- $ sqrt(highest_light_level) $ *alog(accuracy))*2.0d0)^2) ; Generate arrays for probability distribution which have 2^N elements ; and are larger than this maximum, and also for the Fourier transform ; (ft) of this final_electron_array_size=2L^(ceil(alog(max_electrons_in_register)/alog(2.0))) electron_array=dblarr(final_electron_array_size) ft_electron_array_out=dcomplexarr(final_electron_array_size) electron_array_out=dcomplexarr(final_electron_array_size) ; Fill electron_array_out with the probability distribution expected ; for a single input electron and no CIC, and Fourier transform it electron_array_out[0:(size(output_single_electron))[1]-1]=output_single_electron ft_electron_array_in=fft(electron_array_out,/inverse) ; Fill electron_array_out with the probability distribution expected ; for no input electrons but with CIC, and Fourier transform it electron_array_out*=0.0d0 electron_array_out[0:(size(output_cic))[1]-1]=output_cic ft_electron_array_noise=fft(electron_array_out,/inverse) ; Convolve with Gaussian readout noise to give the combined CIC and ; readout noise ft_electron_array_noise*= $ shift(exp(-(((dindgen(final_electron_array_size)-final_electron_array_size/2) $ *!pi*analogue_noise/double(final_electron_array_size))^2.0)), $ final_electron_array_size/2) ; Has the user asked for multiple light levels, or only on light ; level? if (n_elements(input_electrons) gt 1) then begin output_electrons=dblarr(final_electron_array_size/4,n_elements(input_electrons)) endif else begin output_electrons=dblarr(final_electron_array_size/4) endelse ; Loop through the different light levels requested dummy_input='' for light_level=0, n_elements(input_electrons)-1 do begin ; Which light level are we processing next? current_input_electrons=input_electrons[light_level] if keyword_set(VERBOSE) then print, $ 'Calculating response to Poisson distribution of input electrons (mean='+ $ string(current_input_electrons,format='(F10.5)')+') in absence of CIC' ; Maximum likely number of electrons input to the register ; event (up to number of electrons which occur with the probability ; equal to the user specified probability accuracy) max_electrons_input=ceil(1.0+current_input_electrons-alog(accuracy)*sqrt(1.0d0+current_input_electrons)) ; Array describing the electrons input to the multiplication register ; It contains the probability distribution for the number of input ; electrons for the specified light level (Poisson distribution) input_array=dblarr(max_electrons_input) input_array[0:max_electrons_input-1]=poisson_distr(max_electrons_input, current_input_electrons) if keyword_set(VERBOSE) then begin print,'Press ENTER to a plot of see the Poisson distribution of electrons entering '+ $ 'the register when the mean level is '+string(current_input_electrons,format='(F8.4)')+ $ ' electrons' read,dummy_input plot,input_array, $ xtitle='Number of input electrons', ytitle='Probability of occurrence', $ title='Electrons entering the gain register (mean level of '+ $ string(current_input_electrons,format='(F8.4)')+')', charsize=1.2 endif if keyword_set(VERBOSE) then print,'Calculating response for 0 to'+ $ string(max_electrons_input-1,format='(I4)')+ ' input electrons' ; Initialise array which will hold the final probability distribution ft_electron_array_out*=0.0d0 ; Initialise array which will hold the probability distribution for ; exactly n input electrons (where n is increased from zero to ; max_electrons_input-1) ft_electron_array_pow_n=dcomplexarr(final_electron_array_size)+1.0d0 ; Loop through number of input electrons from zero to max_electrons_input-1 for electrons=0L, max_electrons_input-1 do begin ft_electron_array_out+=ft_electron_array_pow_n*input_array[electrons] ft_electron_array_pow_n*=ft_electron_array_in if keyword_set(VERBOSE) then print, string(electrons,format='(I4)')+ $ ' input electrons case calculated (occurs '+$ string(100.0*input_array[electrons],format='(F8.4)')+'% of the time)' endfor if keyword_set(VERBOSE) then begin print,'Press ENTER to see a plot of the distribution of electrons leaving the register'+$ ' both with and without noise (CIC and analogue readout noise)' read,dummy_input plot,findgen(final_electron_array_size/4)+bias, $ (fft(ft_electron_array_out))[0:final_electron_array_size/4-1], $ xtitle='Number of output electrons + bias', ytitle='Probability of occurrence', $ title='Electrons output from register, '+ $ string(current_input_electrons,format='(F8.4)')+' electrons in, g='+ $ string(register_gain,format='(F8.1)'), charsize=1.2, /ylog endif ; Convolve the distribution with Clock Induced Charge (CIC) and ; readout noise held in ft_electron_array_noise ft_electron_array_out*=ft_electron_array_noise ; Store result in output_electrons array if (n_elements(input_electrons) gt 1) then begin output_electrons[*,light_level]=(shift(fft(ft_electron_array_out),bias))[0:final_electron_array_size/4-1] if keyword_set(VERBOSE) then begin oplot,findgen(final_electron_array_size/4), $ output_electrons[*,light_level], color=32703 legend,['Without noise', 'With CIC and readout noise'],color=[-1,32703],psym=0,/right,charsize=1.2 endif endif else begin output_electrons[*]=(shift(fft(ft_electron_array_out),bias))[0:final_electron_array_size/4-1] if keyword_set(VERBOSE) then begin oplot,findgen(final_electron_array_size/4), $ output_electrons, color=32703 legend,['Without noise', 'With CIC and readout noise'],color=[-1,32703],psym=0,/right,charsize=1.2 endif endelse endfor ; Plot results for user if (n_elements(input_electrons) gt 1 and keyword_set(VERBOSE)) then begin print,'Press ENTER to see a plot of the distributions of electrons leaving the register'+$ ' at each light level including CIC and analogue readout noise' read,dummy_input plot,output_electrons[*,0],/ylog,yrange=[max(output_electrons)*1.0d-7, $ max(output_electrons)], $ title='Distribution of electrons leaving the register at each light level', $ xtitle='Number of electrons output + bias', ytitle='Probability of occurence',charsize=1.2 for i=1L,n_elements(input_electrons)-1 do begin oplot,output_electrons[*,i],color= $ ((i*15+128) mod 256) + ((i*132L) mod 256) * 256L + ((((i*127)/2+32) mod 224)+32) * 65536L endfor light_level_string=strarr(n_elements(input_electrons)) for i=0L,n_elements(input_electrons)-1 do begin light_level_string[i]=string(input_electrons[i],format='(F8.4)')+$ ' electrons in' endfor i=lindgen(n_elements(input_electrons)) color_array=$ ((i*15+128) mod 256) + ((i*132L) mod 256) * 256L + ((((i*127)/2+32) mod 224)+32) * 65536L color_array[0]=-1 legend,light_level_string,psym=0, /right, color= color_array, charsize=1.2 endif end pro l3ccd_sim_1_electron, register_length, register_gain, stage_cic, $ output_single_electron, output_cic, accuracy=accuracy, verbose=verbose ; Gain per stage minus 1 (the fraction of additional electrons per stage) diff_stage_gain=double(register_gain)^(1.0d0/double(register_length))-1.0d0 ; Maximum likely number of electrons given one input electron (up to ; number of electrons which occur with the probability equal to the ; user specified probability accuracy) max_electrons_in_register=-register_gain*alog(accuracy) ; Generate array for probability distribution which has 2^N elements ; and is larger than this, and also for holding Fourier transform (ft) ; of the probability distribution electron_array_size=2L^(floor(alog(max_electrons_in_register*sqrt(register_length))/alog(2.0))) electron_array=dblarr(electron_array_size) ft_electron_array_in=dcomplexarr(electron_array_size) ft_electron_array_pow_n=dcomplexarr(electron_array_size) ft_electron_array_out=dcomplexarr(electron_array_size) ; Maximum likely number of electrons produced by an impact ionisation ; event (up to number of electrons which occur with the probability ; equal to the user specified probability accuracy) max_electrons_impact=ceil(1.0+diff_stage_gain-alog(accuracy)*sqrt(1.0d0+diff_stage_gain)/2.0) ; Array describing the output of the impact ionisation process ; It contains the probability distribution for the number of output ; electrons given one input electron impact_array=dblarr(electron_array_size) impact_array[1:max_electrons_impact]=poisson_distr(max_electrons_impact, diff_stage_gain) if keyword_set(VERBOSE) then begin print,'First plotting the output from a single impact ionisation event' plot,impact_array[0:max_electrons_impact], $ xtitle='Number of output electrons', ytitle='Probability of occurrence', $ title='Output from a single impact ionisation event', charsize=1.2 endif ; Fourier transform impact_array to speed up convolutions ft_impact_array = fft(impact_array,/inverse) ; Start with response of the last gain stage to one input electron ft_electron_array_out=ft_impact_array dummy_input='' if (stage_cic gt 0.0) then begin if keyword_set(VERBOSE) then print, $ 'Calculating distribution of CIC electrons generated in single stage' ; Maximum likely number of electrons produced by CIC in one stage ; (up to number of electrons which occur with the probability ; equal to the user specified probability accuracy) max_electrons_cic=ceil(1.0+diff_stage_gain-alog(accuracy)*sqrt(1.0d0+diff_stage_gain)/2.0) ; Array describing the output of the CIC process ; It contains the probability distribution for the number of output ; electrons given zero input electrons cic_array=dblarr(max_electrons_cic) cic_array[0:max_electrons_cic-1]=poisson_distr(max_electrons_cic, stage_cic) if keyword_set(VERBOSE) then begin print,'Press ENTER to see the distribution of CIC electrons generated within one gain stage of the register' read,dummy_input plot,cic_array[0:max_electrons_cic-1], $ xtitle='Number of output electrons', ytitle='Probability of occurrence', $ title='CIC electrons generated within one gain stage', charsize=1.2 endif ft_cic_array_out=dcomplexarr(electron_array_size) ft_cic_array_sum=dcomplexarr(electron_array_size) ft_cic_array_sum[0:max_electrons_cic-1]=cic_array ft_cic_array_sum=fft(ft_cic_array_sum,/inverse) endif if keyword_set(VERBOSE) then begin print, 'Calculating responses of multiplication registers'+$ ' of different lengths, starting with a register containing only one gain stage' print,'Press ENTER to see plots of results for each multiplication register length. Plots show two cases:' print,'1. Exactly one electron input to register with no CIC' print,'2. No electrons input to register but including CIC (if CIC is present)' read,dummy_input endif ; Register stages numbered from 0 at the END to register_length-1 at ; the beginning -- note am working backwards through the register in ; this loop. In each iteration I use the probability distribution for ; a register of length stage-1 to calculate the probability ; distribution for a register of length stage. In output printed to ; user I use sensible numbering for stages. for stage=1L, register_length-1 do begin ; If there is Clock Induced Charge (CIC) then we need to record the ; response of registers with each length ; Start with the probability distribution for a register of length ; stage-1 (calculated in the last loop iteration) ft_electron_array_in=ft_electron_array_out ; If there is CIC then calculate it if (stage_cic gt 0.0) then begin ft_electron_array_pow_n=dcomplexarr(electron_array_size)+1.0d0 ft_cic_array_out*=0.0d0 for electrons=0L, max_electrons_cic-1 do begin ft_cic_array_out+=ft_electron_array_pow_n*cic_array[electrons] ft_electron_array_pow_n*=ft_electron_array_in endfor ; Combine the CIC with the total so far (using convolution to sum the ; numbers of electrons) ft_cic_array_sum*=ft_cic_array_out endif ; Now calculate the response to one input electron ft_electron_array_pow_n=ft_electron_array_in ft_electron_array_out*=0.0d0 for electrons=1L, max_electrons_impact-1 do begin ft_electron_array_out+=ft_electron_array_pow_n*impact_array[electrons] ft_electron_array_pow_n*=ft_electron_array_in endfor ; If the user wants to see what is happening, then keep them up to date if keyword_set(VERBOSE) then begin plot,(fft(ft_electron_array_out))[0:register_gain/10+19],yrange=[0.1/register_gain,1.0], $ /ylog,xtitle='Number of output electrons', ytitle='Probability of occurrence', $ title='Register with '+string(stage+1,format='(I4)')+' stages', $ charsize=1.2 if (stage_cic gt 0.0) then begin oplot,(fft(ft_cic_array_sum))[0:register_gain/10],color=32703 legend,['1e in, no CIC', '0e in, with CIC'],color=[-1,32703],psym=0,/right,charsize=1.2 endif print,'Properties of register stages '+string(register_length-stage,format='(I4)')+' to'+ $ string(register_length,format='(I5)')+' calculated' endif endfor if keyword_set(VERBOSE) then begin print,'Press ENTER to see the output distribution with one electron input to the full register with no CIC' read,dummy_input plot,(fft(ft_electron_array_out))[0:electron_array_size/4-1], $ /ylog,xtitle='Number of output electrons', ytitle='Probability of occurrence', $ title='Register with '+string(register_length,format='(I4)')+' stages, exactly 1 electron in, gain='+ $ string(register_gain,format='(F8.1)')+', no CIC', charsize=1.2 endif output_single_electron=double((fft(ft_electron_array_out))[0:electron_array_size/4-1]) if (stage_cic gt 0.0) then begin if keyword_set(VERBOSE) then begin print,'Press ENTER to see the output distribution with no electrons input to register but including CIC' read,dummy_input plot,(fft(ft_cic_array_sum))[0:electron_array_size/4-1], $ /ylog,xtitle='Number of output electrons', ytitle='Probability of occurrence', $ title='Register with '+string(register_length,format='(I4)')+' stages, 0 e in, gain='+ $ string(register_gain,format='(F8.1)')+', CIC='+string(stage_cic,format='(F8.6)'), $ charsize=1.2 endif output_cic=double((fft(ft_cic_array_sum))[0:electron_array_size/4-1]) endif else begin ; Otherise there is no CIC, so the probability distribution for CIC is ; a Dirac delta-function output_cic=dblarr(electron_array_size/4) output_cic[0]=1.0d0 endelse end function poisson_distr,array_size,mean ; Generates an array containing a Poisson distribution with the ; specified mean, and output array_size ; Written by Robert Tubbs poisson_distr = dblarr(array_size) log_n_fact=0.0d0 log_mean=alog(double(mean)) for i=1L, array_size-1 do begin log_n_fact=log_n_fact+alog(double(i)) log_poisson=double(i)*log_mean-mean-log_n_fact if (log_poisson gt -60.0d0) then poisson_distr[i]=exp(log_poisson) endfor poisson_distr[0]=1.0d0-total(poisson_distr[1:array_size-1]) return, poisson_distr end -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060621/63df25e4/attachment.html From cgeimer at eso.org Thu Jun 29 15:21:47 2006 From: cgeimer at eso.org (cgeimer at eso.org) Date: Thu, 29 Jun 2006 21:21:47 +0200 Subject: CCD-world: Wanted: Finisar FTR 8510-0-1-0 Message-ID: <1151608907.44a4284b22cd5@webmail.eso.org> Dear all, sorry to bother you with a question that is not directly related to detectors, but at least it has to do with the electronics that one needs to read them out - and what would we do without that ?:-) ESO's standard CCD controller (FIERA) will soon be replaced with our new Next Generation controller (NGC), but nevertheless we still have to complete the last batch of FIERA's and we are suffering from an increasing number of obsolete components. I have managed to get almost everything apart from the fiber link - a Finisar FTR 8510-0-1-0 and I was wondering if someone has used this device as well and still has some units lying around or could point me to another source. So, please check your drawers and cabinets and let me know. Thanks Christoph P.S.: A FTR 8510-0-2-0 is also ok. It just has a different connector and there are adapters. From taylor at lowell.edu Thu Jun 29 15:48:03 2006 From: taylor at lowell.edu (Brian W. Taylor) Date: Thu, 29 Jun 2006 12:48:03 -0700 Subject: CCD-world: CTI 1050 Cold Head Message-ID: Hello All, We are looking for a refurbished CTI 1050 Cold head to put in place as a spare for our Aladdin III system. Does anyone have one that they want to part with or have a good source? Thanks in Advance! Cheers, Brian From jean-luc.gach at oamp.fr Wed Jul 19 03:10:02 2006 From: jean-luc.gach at oamp.fr (jean-luc GACH) Date: Wed, 19 Jul 2006 09:10:02 +0200 Subject: CCD-world: TR : TR : ccd Message-ID: <000701c6ab02$5b036030$3301010a@portablejlg> Hello Gentlemen, Here's a call from Byurakan Observatory (Armenia) which is searching for an old loral 3 CCD. Note that the situation of the byurakan Observatory is quite difficult (no funds) and if someone could help them for free or for a symbolic amount of money, it would be wonderfull. Please answer to mailto:tigmov at web.am if you wish to help them Regards --------------------------- Jean-Luc GACH Instrumentation engineer Universit? de Provence Observatoire de Marseille 2 place Le verrier 13248 Marseille cedex 4 phone : +33 (0) 4 95 04 4119 fax : +33 (0) 4 91 62 1190 http://www-obs.cnrs-mrs.fr/interferometrie/interferometrie.html > Hello my dear friend, > I have a problem with my 2k Loral > CCD. It is incredible story, chip unglued and cutting all conductors > was dropped in cryostat! It is only camera, which works with SCORPIO > and a I am looking possibility to find the same type of chip to put in > cryostat. The same CCD was used in CFHT in beginning 0f 90th but now > it is out of use. Have you any contacts with person who responsible > for detectors at CFHT? Is it possible to ask them to pass Loral 3 chip > to Byurakan Observatory? Tigran > > > > > From Paul.Jorden at e2v.com Wed Jul 19 06:04:02 2006 From: Paul.Jorden at e2v.com (Jorden, Paul) Date: Wed, 19 Jul 2006 11:04:02 +0100 Subject: CCD-world: FW: CCD world Message-ID: <3EF8180825045544B765C027D8E950EE03392856@whl60.e2v.com> > To CCD World. > > See advert for job opportunity below. > Please contact my colleague (as below) for more info. > Best Regards to all, > > Paul J _________________________________________________________ Dr Paul Jorden, CCD Sensors, e2v technologies Waterhouse Lane, Chelmsford, Essex, CM1 2QU, UK Tel: +44 (0)1245 -453458 (direct), -493493 (switchboard) Fax: +44 (0)1245 453224 (local), -492492 (central) http://imaging.e2v.com e2v Job Advert > Due to our continued expansion e2v are seeking entry level Engineers to > join our CCD and CMOS imaging business. We are looking for First degree > (or higher) Physicists or similar who want to join a successful and > expanding company. Due to security restrictions e2v vacancies are only > available to EU nationals. The full job description is given below. > > e2v Technologies Chelmsford, UK > > Project Engineer > > As a Project Engineer you will support the project from initial conception > to final delivery. Our imaging projects involve manufacture and supply of > imagers to custom specifications for aerospace/astronomy and associated > customers worldwide. Project work starts with discussion of > specifications with sales/applications staff, includes the definition of > test and verification methods, the generation and approval of documents, > and ends with delivery of products and final reports. You will be working > within a team which includes mechanical designers, solid state device > experts, electronic engineers, assembly and test operators, etc. > Occasional foreign travel is likely. > > The role involves a combination of theoretical understanding, data > analysis, and hands on work. > The ideal candidate should have: > > * A good understanding of solid state physics > * A flexible approach to work, enjoying the variation in tasks > involved with this job. > * The ability to work under pressure and meet demanding > deadlines > * The ability to work as a team and have good verbal and > written communication skills. > * A desire to learn new skills and develop technically > * Previous experience in imaging or the space industry is > particularly desirable but not essential. > > Please e-mail your CV and covering letter to recruitment at e2v.com > , quoting the ref:2045C The closing date for > receipt of applications is 12th Aug 2006 > > Requests for further details or questions should be directed to Paul > Mortlock From stefan at crux.astro.utoronto.ca Wed Jul 19 13:54:56 2006 From: stefan at crux.astro.utoronto.ca (Stefan Mochnacki) Date: Wed, 19 Jul 2006 13:54:56 -0400 Subject: CCD-world: Fringing in a CMOS sensor. Message-ID: <20060719135456.A10907@crux.astro.utoronto.ca> Dear CCD-worlders, We have been running a series of simple lab tests to investigate the possibility of using the Cypress (formerly FillFactory) IBIS4-14000-M 14-megapixel 35mm-format CMOS image sensor in a nanosatellite doing bright star photometry ( 0.1% per few second exposure, 30mm aperture imager). It has 8x8 micron 3-T pixels, without microlenses or Bayer matrix filters. We have built our own prototype electronics to use the chip. We have conducted tests with simulated star images in white light, with fairly promising results. However, when we put it in the focal plane of an astronomical spectrograph with spectral purity ~ 0.2 nm we got rather startling fringing, at all visible wavelengths. The first figure shows the section on the detector covered by the spectrum, the second is a crudely wavelength-calibrated plot of one row. A mean bias has been subtracted, no flattening has been performed. I wrote as follows to Cypress: ____________________________________________________________________________ The fringing we observe agrees with the fluctuations suggested by Figure 1 of the product data sheet. We have repeated the measurement at several grating settings, and the pattern moves with the wavelength, and is therefore not caused by electrical or geometrical properties of the chip other than optical interference. The third and fourth attachments show the results of roughly measuring the wavelengths of peaks of the fringes. This indicates that the thickness of the layer is about 10 microns (or at least, the index of refraction times its thickness is about 10 microns), using the formula delta(lambda) = lambda**2 / 2 d where d = thickness of interfering layer, and lambda = wavelength. The fringing is not caused by the cover slip glass, because that is 700 microns thick. ___________________________________________________________________________ The response from Ken Vermeulen at Cypress to my request for comments follows: "You have measured and calculated interference from a layer 10 micron above the Si. More exactly, as you pointed out, the refraction index times the thickness is 10um. The IBIS4-14000 has a metal layer at about 7um above the Si. The oxide above the photodiode has a refraction index of 1.48 so 1.48*7um ~10um. This metal layer is thus most likely the layer causing the interference. Unfortunately, as this is fixed in the design of the chip, there is nothing you can do about this." Dan Foisy, our project manager, asked: "Are all the ex-Fill Factory chips likely to have this issue?... We've put in significant effort in evaluating the IBIS4 for our needs and would hate to have to repeat the entire process on another chip." Ken wrote back: "We suspect that all CMOS sensors will suffer from this as one can not exclude the metal layers running across the array so switching to another sensor may not provide a solution..." My next step is to do an image fringing test using monochromatic sources, or better yet, a series of narrow-band interference filters (1-2 nm wide) placed in front of a distant continuum source. This will check for uniformity of the interfering layer; thickness non-uniformity of course bedevils R and I imaging using thinned CCDs. I haven't seen any mention of this in CCD-world or elsewhere in the literature, including Jim's superb reviews (but then I probably have missed something). I would be extremely grateful for any comments and experiences list members may have about CMOS sensor F-P fringing. We are under considerable pressure to produce a flying detector system with power consumption less than 500 mW (whence the CMOS effort). Cheers, Stefan Mochnacki, Dept. of Astronomy & Astrophysics, University of Toronto. (BRITE instrument scientist) Ref: http://www.chipcatalog.com/Cypress/IBIS4-14000.htm -------------- next part -------------- A non-text attachment was scrubbed... Name: fp1.30s.crop.jpg Type: image/jpeg Size: 4005 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060719/8bf1bed7/attachment.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: row91r.jpg Type: image/jpeg Size: 25347 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060719/8bf1bed7/attachment-0001.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: thickcalc.jpg Type: image/jpeg Size: 32701 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060719/8bf1bed7/attachment-0002.jpg -------------- next part -------------- A non-text attachment was scrubbed... Name: thick.jpg Type: image/jpeg Size: 35849 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060719/8bf1bed7/attachment-0003.jpg From dbaade at eso.org Thu Jul 27 11:06:15 2006 From: dbaade at eso.org (Dietrich Baade) Date: Thu, 27 Jul 2006 17:06:15 +0200 Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs Message-ID: <44C8D667.4000801@eso.org> The company Optical Tools developed for ESO a custom version of their stabilized blue LED that can be triggered by a TTL signal. Data sheet of the series model is here: http://www.optical-tools.com/pdfs/Emitter1010%20Series%20Rev7pt7-2%20pp.pdf Stability is 0.05%/degreeC, caused mostly by the temperature dependency of the feedback photo diode. The settling time is under 1 msec. We have tested the device in our lab with excellent results. Goal is to use it to produce CCD flats (bypassing most of the optics which is essential in spectrographs) for in-situ testing of CCD gain, linearity, read noise and contamination. After the successful test of the prototype, I wanted to order a few more items. Unfortunately, in the mean time the company has stopped producing these devices as there was not sufficient interest in their main (Biomedical) market. They would be prepared to re-start production in case we could whip up an order for 30 or so devices, at a price of ~1500 USD/Pc Is anyone interested in participating in a consortium to order a number of these devices. OR does anybody know of an alternative source? Hans Dekker European Southern Observatory hdekker at eso.org From HMOluseyi at lbl.gov Thu Jul 27 12:06:47 2006 From: HMOluseyi at lbl.gov (Hakeem M Oluseyi) Date: Thu, 27 Jul 2006 09:06:47 -0700 Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs Message-ID: Hello Dietrich, How large of an area does the LED illuminate? Could I illuminate 6cm by 6cm device with a flat field at 1-2% uniformity? Hakeem ----- Original Message ----- From: Dietrich Baade Date: Thursday, July 27, 2006 8:06 am Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs > The company Optical Tools developed for ESO a custom version of their > stabilized blue LED that can be triggered by a TTL signal. Data > sheet of > the series model is here: > http://www.optical-tools.com/pdfs/Emitter1010%20Series%20Rev7pt7- > 2%20pp.pdfStability is 0.05%/degreeC, caused mostly by the > temperature dependency > of the feedback photo diode. The settling time is under 1 msec. > > We have tested the device in our lab with excellent results. Goal > is to > use it to produce CCD flats (bypassing most of the optics which is > essential in spectrographs) for in-situ testing of CCD gain, > linearity,read noise and contamination. > > After the successful test of the prototype, I wanted to order a few > moreitems. Unfortunately, in the mean time the company has stopped > producingthese devices as there was not sufficient interest in > their main > (Biomedical) market. They would be prepared to re-start production in > case we could whip up an order for 30 or so devices, at a price of > ~1500USD/Pc > > Is anyone interested in participating in a consortium to order a > numberof these devices. > > OR does anybody know of an alternative source? > > Hans Dekker > European Southern Observatory > hdekker at eso.org > > -- CCD-world -- > CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu > Standard replies will go to the list; address personal replies > manually.For more information, please go to: > http://www.ctio.noao.edu/mailman/listinfo/ccd-world > From apo at mso.anu.edu.au Thu Jul 27 18:18:11 2006 From: apo at mso.anu.edu.au (Patrick Oates) Date: Fri, 28 Jul 2006 08:18:11 +1000 Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs In-Reply-To: References: Message-ID: <44C93BA3.2040905@mso.anu.edu.au> I may be interested in one or 2 as well. Sound good.. Paddy -- ++Surfing in CyberSpace on the Wings of a Storm++++++\ Senior Detector Engineer. MSSSO, RSAA. | Ph: +61 2 6125 8909 Fax: +61 2 6125 5635 | W: http://www.mso.anu.edu.au/observing/detectors/ | e: apo at mso.anu.edu.au | -----------------------------------------------------/ From gert at ster.kuleuven.be Thu Jul 27 16:58:50 2006 From: gert at ster.kuleuven.be (Gert Raskin) Date: Thu, 27 Jul 2006 22:58:50 +0200 Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs References: <44C8D667.4000801@eso.org> Message-ID: <44C9290A.8060801@ster.kuleuven.be> Hi, The link to the datasheet doesn't seem to be available any longer. Could you send us the datasheet of this device? Thanks, Gert Dietrich Baade wrote: >The company Optical Tools developed for ESO a custom version of their >stabilized blue LED that can be triggered by a TTL signal. Data sheet of >the series model is here: >http://www.optical-tools.com/pdfs/Emitter1010%20Series%20Rev7pt7-2%20pp.pdf >Stability is 0.05%/degreeC, caused mostly by the temperature dependency >of the feedback photo diode. The settling time is under 1 msec. > >We have tested the device in our lab with excellent results. Goal is to >use it to produce CCD flats (bypassing most of the optics which is >essential in spectrographs) for in-situ testing of CCD gain, linearity, >read noise and contamination. > >After the successful test of the prototype, I wanted to order a few more >items. Unfortunately, in the mean time the company has stopped producing >these devices as there was not sufficient interest in their main >(Biomedical) market. They would be prepared to re-start production in >case we could whip up an order for 30 or so devices, at a price of ~1500 >USD/Pc > >Is anyone interested in participating in a consortium to order a number >of these devices. > >OR does anybody know of an alternative source? > >Hans Dekker >European Southern Observatory >hdekker at eso.org > >-- CCD-world -- >CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu >Standard replies will go to the list; address personal replies manually. >For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world > > > -- Gert Raskin Mercator Telescope phone: ++34 922 425412 Observatorio Roque De Los Muchachos 405670 Apdo. 474 fax: ++34 922 425475 38700 Santa Cruz De La Palma http://www.mercator.iac.es TF - Spain gert at ster.kuleuven.be From jbeletic at rwsc.com Sun Jul 30 20:08:11 2006 From: jbeletic at rwsc.com (James W Beletic) Date: Sun, 30 Jul 2006 17:08:11 -0700 Subject: CCD-world: Rockwell Scientific sold to Teledyne Technologies Message-ID: Dear CCD-world members, This past week, Rockwell Automation and Rockwell Collins, the owners of the Rockwell Scientific Company (RSC), agreed to sell RSC to Teledyne Technologies, Inc (teledyne.com). The paperwork for the sale of RSC will take about two months to finalize, and thus it will probably be October when the sign on our door changes to Teledyne. I write this e-mail to tell you about this change in ownership and also to assure you that our commitment to the needs of the astronomical community is as strong as ever. All of our staff and our new owner are committed to our mission of providing the best possible focal plane arrays to astronomy. In case you are not familiar with Teledyne, you should be glad to hear that Teledyne is a very good match with RSC. Teledyne specializes in high performance niche products, and is very supportive of our close relationship with the astronomical community. We look forward to: larger arrays sizes (we are delivering the first 4Kx4K hybrid to astronomy in a few months), lower noise (our new Speedster design for adaptive optics promises <5 electrons single read noise in the IR, at multi-kHz frame rate), higher QE and higher operability (ask about substrate removal, if you haven't heard about it yet), and delivery of arrays with the SIDECAR ASIC focal plane electronics, providing a fully digital interface for astronomical instrumentation. You can search the Internet to find information on Teledyne Technologies, but if you have any questions whatsoever, please do not hesitate to contact me or James Garnett, who is our program management lead for astronomy. Our e-mail addresses are: jbeletic at rwsc.com jgarnett at rwsc.com All the best, Jim ------------------------------------------ James W. Beletic, Ph.D. Director, Sensor Systems Imaging Division Rockwell Scientific Company Phone: +1 805 373 4830 ------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060730/cd1c8801/attachment.html From poc at bnl.gov Mon Jul 31 17:31:55 2006 From: poc at bnl.gov (Paul O'Connor) Date: Mon, 31 Jul 2006 17:31:55 -0400 Subject: CCD-world: job opening at Brookhaven Lab Message-ID: <5.2.1.1.2.20060731172305.023c5590@exchange2000.bnl.gov> Postdoctoral Research Associate - Requires a Ph.D. in physics or astronomy. Experience in optical and electrical characterization of scientific imaging devices is strongly preferred. Research involves detailed study of large-format silicon CCDs and hybrid pixel arrays being considered for next-generation dark energy surveys. Using in-depth knowledge of the relevant science requirements, candidate will develop measurement techniques to accurately determine quantum efficiency, point spread function, and noise properties of cooled sensors. Familiarity with semiconductor device physics, image processing codes, and optical instrumentation is desirable, as is a strong background in contemporary cosmology. Reply to V. Radeka (radeka at bnl.gov) or P. O'Connor (poc at bnl.gov) From mschechter at duart.com Mon Aug 7 09:12:15 2006 From: mschechter at duart.com (Maurice Schechter) Date: Mon, 07 Aug 2006 09:12:15 -0400 Subject: CCD-world: [Fwd: Posting for the list] Message-ID: <44D73C2F.9050606@duart.com> I am looking for a KODAK tri color 4104 X 3 Linear sensor model # KLI-4103 . It was used in a film scanner built by kodak. I have seen them used in scientific uses and astronomy ,also. This ccd was built from 92 -2000. It is discontinued... If anyone has any leads on a source for this CCD ,new or used, please contact me off the list. Also , If I can not located this CCD, I could use a recommendation for a CCD design engineer that could help me integrate a modern CCD into the scanner. -- Maurice Schechter Chief Engineer Duart Film & Video 245 w 55th St. NY, NY 10019 212-757-4580x628 From hdekker at eso.org Mon Aug 7 02:47:42 2006 From: hdekker at eso.org (Hans Dekker) Date: Mon, 07 Aug 2006 08:47:42 +0200 Subject: CCD-world: Stabilized modulated LED for in-situ maintenance testing of CCDs Message-ID: <44D6E20E.4000803@eso.org> The response to my email does not justify placing a collective order or similar with light Tools, I'm afraid. We intend to build some devices in-house, using the Integrated Photomatrix self-monitoring LED (with built-in photodiode and preamp) model 10630. These can be obtained through RC Components. Wavelength from 400 to 900 nm. -------------- next part -------------- A non-text attachment was scrubbed... Name: hdekker.vcf Type: text/x-vcard Size: 364 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060807/2ff2ee01/attachment.vcf From figer at cis.rit.edu Fri Aug 18 15:09:42 2006 From: figer at cis.rit.edu (Don Figer) Date: Fri, 18 Aug 2006 15:09:42 -0400 Subject: CCD-world: Detector Engineer and Postdoc job advertisements Message-ID: <053901c6c2f9$dc376160$212b1581@figer> http://finweb.rit.edu/HumanResources/CareerZone/servlet.html?cmd=jobmart.user.ViewPositionPage&position.id96 Lab Engineer II PC# 9107 Center for Imaging Science Administrative/Professional Description The Rochester Imaging Detector Laboratory (RIDL) is a new lab operated by RIT to develop and advance the most advanced detector technologies for astronomy and other fields. The RIDL has been chosen as a detector development lab by the Large Synoptic Survey Telescope (LSST) and Supernovae Acceleration Probe (SNAP), two of the most important astronomy missions planned for the coming decade, and leading projects for exploring dark matter and dark energy in the Universe. The RIDL Lab Engineer will have overall responsibility to ensure the success of RIDL projects. The responsibilities include managing RIDL projects, supervising a team, ensuring the quality of all results, writing proposals, and presenting results to review boards and external collaborators Qualifications Required skills include the a.. ability to formulate, propose, and execute projects a.. ability to break down projects into tasks and track those tasks a.. familiarity with budgets a.. ability to operate and modify cryogenic systems a.. proficiency in writing IDL programs a.. ability to carefully follow standards and protocols a.. ability to document work Job requirements Required Education a.. Undergraduate university Degree in an Engineering Discipline or a related technical field such as Astronomy, Computer Science, Physics, Math, or technical management Required Experience a.. Experience in engineering systems development and design projects. a.. At least five years experience in testing two-dimensional array detectors. Additional Information a.. Internals only: No b.. Entry: $44,900 c.. Market Rate: $53,100 d.. Salary e.. Full Time f.. Date opened: AUG 17 2006 g.. Status: Open h.. Background Check Required: No ------------------------------------------------------------------------------------------------------ http://finweb.rit.edu/HumanResources/CareerZone/servlet.html?cmd=jobmart.user.ViewPositionPage&position.id97 Post Doctoral Researcher PC# 9130 Center for Imaging Science Administrative/Professional Description The Rochester Imaging Detector Laboratory (RIDL) is a new lab operated by RIT to develop and advance the most advanced detector technologies for astronomy and other fields. The RIDL has been chosen as a detector development lab by the Large Synoptic Survey Telescope (LSST) and Supernovae Acceleration Probe (SNAP), two of the most important astronomy missions planned for the coming decade, and leading projects for exploring dark matter and dark energy in the Universe. The RIDL seek a Postdoctoral Research to participate in lab projects. Responsibilities include overall responsibility to ensure the success of a number of RIDL projects, including those associated with SNAP and LSST. The responsibilities include designing and running detector testing experiments, modifying system hardware and software, maintaining complete documentation, and ensuring that data are reduced, analyzed, and archived. The successful candidate will supervise others, present findings to internal review panels and external groups, and develop, and conduct, a new independent area of detector research. Qualifications A PhD is required for this position. Experience testing detectors is strongly desired. Additional Information a.. Internals only: No b.. Entry: Commensurate with Experience c.. Market Rate: Commensurate with Experience d.. Salary e.. Full Time f.. Date opened: AUG 17 2006 g.. Status: Open h.. Background Check Required: No ----------------------------------------------------- Don Figer figer at cis.rit.edu (585) 475-6005 (Office) (585) 747-6020 (Cell) (585) 475-5988 (Fax) 54 Lomb Memorial Dr COS/Ctr for Imaging Sci, 76-2246 Rochester, NY 146235604 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060818/344852d1/attachment.html From william.beck at ngc.com Thu Aug 17 08:58:52 2006 From: william.beck at ngc.com (Beck, William H.) Date: Thu, 17 Aug 2006 08:58:52 -0400 Subject: CCD-world: Black Anodize vs. Z306 paint beyond "visible" wavelengths... Message-ID: I've never seen BRDF data for Z306. I've never seen spectral reflectance data on Z306 beyond 900nm. In the recent past I've asked the manufacturer for specific technical data but apparently the only data offered is an outgassing comment re: ASTME408-71. There is considerable reference to Z306 in LDEF reports. William H Beck 3rd Advisory Engineer / Space Systems 410 765-7274 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060817/341db846/attachment.html From jpaufiqu at eso.org Wed Aug 30 12:57:51 2006 From: jpaufiqu at eso.org (Jerome Paufique) Date: Wed, 30 Aug 2006 18:57:51 +0200 Subject: CCD-world: L3-CCDs and EMI Message-ID: <44F5C38F.5030806@eso.org> Hi, We are developing GRAAL, a ground layer adaptive optics for a near-infrared instrument (Hawk-I), using 5 L3-CCDs. We will be typically in a regime of 1-20 photon/pixel/frame, with a pixel frequency of ~5 to 10 MHz; we aim at much less than 1 e- equivalent noise. Our camera and power supply cables will be located rather close (~ 0.3 m) to some powerful direct drive motors. The design of the L3-CCD is quite insensitive to EMI. But I am wondering if some among you got a practical experience of using L3-CCDs in difficult electromagnetic environment? Is the amplification gain likely to suffer from EMI? Cheers Jerome Paufique -- **ES*O* J?r?me Paufique room C021 European Southern Observatory (ESO) TEL: +49-(0)89-32006450 Karl Schwarzschildstr. 2, FAX: +49-(0)89-32006838 D-85748 Garching b. Muenchen E-MAIL: jpaufiqu at eso.org Germany URL: http://www.eso.org -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060830/63b30dea/attachment.html -------------- next part -------------- A non-text attachment was scrubbed... Name: eso-logo.gif Type: image/gif Size: 767 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060830/63b30dea/attachment.gif From gert at ster.kuleuven.be Tue Sep 12 02:16:26 2006 From: gert at ster.kuleuven.be (Gert Raskin) Date: Tue, 12 Sep 2006 08:16:26 +0200 Subject: CCD-world: contaminated 42-40 Message-ID: <450650BA.6040104@ster.kuleuven.be> Hi, Recently, we had an accident while vacuum pumping the dewar of our E2V 42-40 camera. Unfortunately, we do not exactly know what happened but after pumping and cooling the camera, some pale cloudy structures were visible on the CCD surface. We supposed the contamination was water as we were using a completely oil-free vacuum pump. To cure this problem, we pumped the camera continuously for several days (>80hours) and thereafter, the CCD looked again as normal (shiny grey). However, the flatfield images still show some problems: - We have a large number of small dark dots (a few pixels wide), arbitrary distributed over the surface, with typically 10% less QE. Before the accident we already had some of these dark spots, but they were completely stable and thus efficiently removed by the flatfielding. Now, they are much less stable, eg. some annoying remnants of them remain clearly visible in the division of the flatfield images taken on two consecutive days. - We also have some global gradients over the CCD that remind me vaguely of the initial cloudy stucture. This structure is also not stable in time and cannot be removed completely by the flatfielding. Does somebody have suggestions to solve this contamination problem? Might pumping for a much longer time do the job? To what temperature can we safely heat up the CCD (E2V 42-40) during the pumping process to aid evaporation? Thank you, Gert -- Gert Raskin Mercator Telescope phone: ++34 922 425412 Observatorio Roque De Los Muchachos 405670 Apdo. 474 fax: ++34 922 425475 38700 Santa Cruz De La Palma http://www.mercator.iac.es TF - Spain gert at ster.kuleuven.be From Paul.Jorden at e2v.com Tue Sep 12 12:31:30 2006 From: Paul.Jorden at e2v.com (Jorden, Paul) Date: Tue, 12 Sep 2006 17:31:30 +0100 Subject: CCD-world: contaminated 42-40 Message-ID: <90511C6E9D0A89419745854EACE4C7A82FD3E0@whl46.e2v.com> Dear Gert & colleagues, For our chips we normally recommend a maximum baking temperature of 80C. A slightly higher temperature is possible, but runs the risk of softening the epoxy that holds the silicon in place, with risk of change to chip flatness. Good luck, Paul _________________________________________________________ Dr Paul Jorden, CCD Sensors, e2v technologies Waterhouse Lane, Chelmsford, Essex, CM1 2QU, UK Tel: +44 (0)1245 -453458 (direct), -493493 (switchboard) Fax: +44 (0)1245 453224 (local), -492492 (central) http://imaging.e2v.com -----Original Message----- From: Gert Raskin [mailto:gert at ster.kuleuven.be] Sent: 12 September 2006 07:16 To: Optical & SWIR imager development for professional astronomy Cc: Hans Van Winckel Subject: CCD-world: contaminated 42-40 Hi, Recently, we had an accident while vacuum pumping the dewar of our E2V 42-40 camera. Unfortunately, we do not exactly know what happened but after pumping and cooling the camera, some pale cloudy structures were visible on the CCD surface. We supposed the contamination was water as we were using a completely oil-free vacuum pump. To cure this problem, we pumped the camera continuously for several days (>80hours) and thereafter, the CCD looked again as normal (shiny grey). However, the flatfield images still show some problems: - We have a large number of small dark dots (a few pixels wide), arbitrary distributed over the surface, with typically 10% less QE. Before the accident we already had some of these dark spots, but they were completely stable and thus efficiently removed by the flatfielding. Now, they are much less stable, eg. some annoying remnants of them remain clearly visible in the division of the flatfield images taken on two consecutive days. - We also have some global gradients over the CCD that remind me vaguely of the initial cloudy stucture. This structure is also not stable in time and cannot be removed completely by the flatfielding. Does somebody have suggestions to solve this contamination problem? Might pumping for a much longer time do the job? To what temperature can we safely heat up the CCD (E2V 42-40) during the pumping process to aid evaporation? Thank you, Gert -- Gert Raskin Mercator Telescope phone: ++34 922 425412 Observatorio Roque De Los Muchachos 405670 Apdo. 474 fax: ++34 922 425475 38700 Santa Cruz De La Palma http://www.mercator.iac.es TF - Spain gert at ster.kuleuven.be -- CCD-world -- CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu Standard replies will go to the list; address personal replies manually. For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world From wpk at saao.ac.za Wed Sep 13 07:05:44 2006 From: wpk at saao.ac.za (Willie Koorts) Date: Wed, 13 Sep 2006 13:05:44 +0200 (SAST) Subject: CCD-world: contaminated 42-40 In-Reply-To: <450650BA.6040104@ster.kuleuven.be> Message-ID: On Tue, 12 Sep 2006, Gert Raskin wrote: > Does somebody have suggestions to solve this contamination problem? > Might pumping for a much longer time do the job? > To what temperature can we safely heat up the CCD (E2V 42-40) during the > pumping process to aid evaporation? Hi Gert What you found sounds familiar to contamination probelms we experienced years ago. The fact that you see changes in your flat fields over time suggests that it is still there - we saw similar behaviour. For the whole saga, see: http://www.ctio.noao.edu/pipermail/ccd-world/1998/001994.html and http://www.saao.ac.za/~wpk/ccd/ustrip.html As you can see from the above, vacuum baking is a saving grace, depending on your contaminant of course. From the sounds of it, your's may budge under extended vacuum baking, but wil need a complete re-clean if not. As Paul said, vacuum baking E2V CCDs up to 80?C is possible (although I normally chicken out at ~50-60?C when I think about how much they cost). Sterkte Willie From djs at aaocbn.aao.gov.au Sun Sep 17 19:52:33 2006 From: djs at aaocbn.aao.gov.au (Darren Stafford) Date: Mon, 18 Sep 2006 09:52:33 +1000 Subject: CCD-world: contaminated 42-40 In-Reply-To: <450650BA.6040104@ster.kuleuven.be> References: <450650BA.6040104@ster.kuleuven.be> Message-ID: <450DDFC1.7080908@aaocbn.aao.gov.au> Hi Gert and others, Low pressure nitrogen flushing is neat way to decontaminate a dewar. If your camera is a large schmidt camera then it will be extremely sensitive to contamination. So sensitive that it is virtually impossible to avoid. Low pressure nitrogen in the range of <1 Torr flushed through a dewar can trap contaminants in the "wind". The trick is to get the pressure high enough to allow viscous flow but low enough to make sure the contaminant is in the vapour state. You can figure out the maximum flush pressure by warming the dewar to ambient and start flushing at 10Torr if the contaminant remains after an hour lower the pressure and so on until the contaminant is pumped off. This pressure is your flush pressure. Baking the dewar at the highest possible temperature and flushing at the flush pressure for about a week will cleanup your dewar. Of course you may have more contaminants that have a lower vapour pressure and take longer to accumulate . So you may have to repeat the process several times while determining a new flush pressure. There is a small book in the detail so if you are interested drop me a line. Another neat way to reduce contamination deposits is to cool the outside of the dewar. Even 10 degrees C can have a huge impact. Which is easy with an airconditioner. Darren Stafford AAO Gert Raskin wrote: > Hi, > > Recently, we had an accident while vacuum pumping the dewar of our E2V > 42-40 camera. Unfortunately, we do not exactly know what happened but > after pumping and cooling the camera, some pale cloudy structures were > visible on the CCD surface. We supposed the contamination was water as > we were using a completely oil-free vacuum pump. > > To cure this problem, we pumped the camera continuously for several days > (>80hours) and thereafter, the CCD looked again as normal (shiny > grey). However, the flatfield images still show some problems: > - We have a large number of small dark dots (a few pixels wide), > arbitrary distributed over the surface, with typically 10% less QE. > Before the accident we already had some of these dark spots, but they > were completely stable and thus efficiently removed by the flatfielding. > Now, they are much less stable, eg. some annoying remnants of them > remain clearly visible in the division of the flatfield images taken on > two consecutive days. > - We also have some global gradients over the CCD that remind me vaguely > of the initial cloudy stucture. This structure is also not stable in > time and cannot be removed completely by the flatfielding. > > Does somebody have suggestions to solve this contamination problem? > Might pumping for a much longer time do the job? > To what temperature can we safely heat up the CCD (E2V 42-40) during the > pumping process to aid evaporation? > > Thank you, > Gert > > From Eric_Beuville at raytheon.com Thu Sep 21 16:05:32 2006 From: Eric_Beuville at raytheon.com (Eric Beuville) Date: Thu, 21 Sep 2006 13:05:32 -0700 Subject: CCD-world: AQUARIUS 1k x 1k High Background Si:As IBC Message-ID: Hello CCD-World, The Astronomy group at Raytheon Vision Systems offers now the AQUARIUS 1k x 1k High Background Si:As IBC for ground-based astronomy applications (see attached datasheet). Raytheon's Aquarius-1k is a 1024 x 1024 pixel high-performance array with a 30um pitch that features high quantum efficiency, low noise, dark current, and on-chip clocking for ease of operation. A very fast full frame rate of 150 Hz is achieved with 64 outputs (32 outputs per side). Programmable number of outputs (16 or 64) and centered windowing will accommodate a wide range of input flux conditions and readout rates. The multiplexer and packaging design, two edges alignment, allows for expansion to 2k x 1k and wider Focal Plane Assemblies with minimum gaps. The Aquarius-1k is a new addition to our line of Standard Astronomy Products. For more information, please contact: Elizabeth Corrales Program Manager 805.562.2305 805.562.2127 fax lcorrales at raytheon.com or Dr. Alan Hoffman Technical Manager, Astronomy 805.562.2230 805.562.2127 fax ahoffman at raytheon.com Regards, Eric Beuville Ph.D. Sr. Principal Engineer Raytheon RVS, MS B03/92 75 Coromar Dr Goleta, Ca, 93117 Phone: (805) 562 2021 FAX: (805) 562 2776 Email: Eric_Beuville at raytheon.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/bf11a1f5/attachment.html -------------- next part -------------- A non-text attachment was scrubbed... Name: 06-0207DTS_Aquarius.pdf Type: application/octet-stream Size: 586366 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/bf11a1f5/attachment.obj From Eric_Beuville at raytheon.com Thu Sep 21 16:04:57 2006 From: Eric_Beuville at raytheon.com (Eric Beuville) Date: Thu, 21 Sep 2006 13:04:57 -0700 Subject: CCD-world: 2k x 2k SWIR VIRGO Message-ID: Hello CCD-World, The Astronomy group at Raytheon Vision Systems offers now the VIRGO 2048 x 2048 SWIR array for astronomy applications (see attached datasheet). Raytheon's VIRGO-2k is a 2048 x 2048 pixel high-performance array with a 20um pitch that features high quantum efficiency, low noise, dark current, and on-chip clocking for ease of operation. Four or 16 outputs can be selected to accommodate a wide range of input flux conditions and readout rates. The multiplexer and packaging design allows for expansion to 4k x 4k and larger Focal Plane Assemblies with minimum gaps. The VIRGO-2k, 2048 x 2048 is a new addition to our line of Astronomy Standard Products and is available for order. For more information, please contact: Elizabeth Corrales Program Manager 805.562.2305 805.562.2127 fax lcorrales at raytheon.com or Dr. Alan Hoffman Technical Manager, Astronomy 805.562.2230 805.562.2127 fax ahoffman at raytheon.com Regards, Eric Beuville Ph.D. Sr. Principal Engineer Raytheon RVS, MS B03/92 75 Coromar Dr Goleta, Ca, 93117 Phone: (805) 562 2021 FAX: (805) 562 2776 Email: Eric_Beuville at raytheon.com -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/0d16181e/attachment.html -------------- next part -------------- A non-text attachment was scrubbed... Name: 03-0656DTS_VIRGO-2K.pdf Type: application/octet-stream Size: 1496209 bytes Desc: not available Url : http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/0d16181e/attachment.obj From rsmith at astro.caltech.edu Thu Sep 21 17:09:00 2006 From: rsmith at astro.caltech.edu (Roger Smith) Date: Thu, 21 Sep 2006 14:09:00 -0700 Subject: CCD-world: 2k x 2k SWIR VIRGO In-Reply-To: References: Message-ID: Eric, Not everyone on this list will be aware what you mean by "SWIR", ie that you offer both 2.5um and 1.7um cutoff HgCdTe on the VIRGO mux. Do you offer other cutoff wavelengths too? How about Silicon Photodiode arrays? Do you have smaller/cheaper formats too, or is there the option of getting devices which work only over a fraction of their area at a commensurate fraction of the cost. Does VIRGO support sub-rastering ? -- Roger Roger M. Smith California Institute of Technology 1200 E. California Blvd, Mail Stop 105-24 Pasadena CA 91125, USA Office: 1-626-395-8780 Fax: 1-626-568-1517 e-mail: rsmith at astro.caltech.edu On Sep 21, 2006, at 1:04 PM, Eric Beuville wrote: > > Hello CCD-World, > > The Astronomy group at Raytheon Vision Systems offers now the VIRGO > 2048 x 2048 SWIR array for astronomy applications (see attached > datasheet). > > Raytheon's VIRGO-2k is a 2048 x 2048 pixel high-performance array > with a 20um pitch that features high quantum efficiency, low noise, > dark current, and on-chip clocking for ease of operation. Four or > 16 outputs can be selected to accommodate a wide range of input > flux conditions and readout rates. The multiplexer and packaging > design allows for expansion to 4k x 4k and larger Focal Plane > Assemblies with minimum gaps. > The VIRGO-2k, 2048 x 2048 is a new addition to our line of > Astronomy Standard Products and is available for order. > > > For more information, please contact: > Elizabeth Corrales > Program Manager > 805.562.2305 > 805.562.2127 fax > lcorrales at raytheon.com > or > Dr. Alan Hoffman > Technical Manager, Astronomy > 805.562.2230 > 805.562.2127 fax > ahoffman at raytheon.com > > Regards, > > Eric Beuville Ph.D. > Sr. Principal Engineer > Raytheon RVS, MS B03/92 > 75 Coromar Dr > Goleta, Ca, 93117 > Phone: (805) 562 2021 > FAX: (805) 562 2776 > Email: Eric_Beuville at raytheon.com > > <03-0656DTS_VIRGO-2K.pdf> > > -- CCD-world -- > CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu > Standard replies will go to the list; address personal replies > manually. > For more information, please go to: http://www.ctio.noao.edu/ > mailman/listinfo/ccd-world -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/8942a729/attachment.html From ktj1 at cornell.edu Thu Sep 21 19:56:11 2006 From: ktj1 at cornell.edu (Kevin Jim) Date: Thu, 21 Sep 2006 13:56:11 -1000 Subject: CCD-world: Wavefront sensor for 750 to 900 nm Message-ID: <48577B22-9CBF-4C25-82A3-E2945D4217DD@cornell.edu> Does anyone have suggestions for an imager for use as a wavefront sensor between 750 to 900 nm?, Ideally, it could be run at up to 5 KHz frame rates with at least 20 x 20 effective pixels. Right now, I'm using an e2V CCD-39 (80x80,4-tap), which works well, but I'm curious if anyone could suggest any alternatives. I'm considering the e2V CCD-60 (128x128 EMCCD, single tap), but it's a bit slow. Devices available now and in the near term (within 0 to 3 years) are of interest. Thanks, and best regards, Kevin T.C. Jim, Ph.D. ktj1 at cornell.edu http://kjimaging.com 1334 Kanewai St., Honolulu, HI 96816 (808)779-7947 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060921/4271dd1b/attachment.html From Peter.Pool at e2v.com Fri Sep 22 11:43:47 2006 From: Peter.Pool at e2v.com (Pool, Peter) Date: Fri, 22 Sep 2006 16:43:47 +0100 Subject: CCD-world: Wavefront sensor for 750 to 900 nm Message-ID: <90511C6E9D0A89419745854EACE4C7A8861CE1@whl46.e2v.com> Hi Kevin, I shall be interested to see what other responses you get. You have CCD60. Have you tried doing ~235 line transfers at frame transfer, holding the dump gate high to lose unwanted signal? This can leave just the 20 lines you need. CCD60 runs happily at 15MHz pixel rate which, I believe, would give you 20 x 128 pixels at 5kfps. Best regards Peter Pool e2v -----Original Message----- From: Kevin Jim [mailto:ktj1 at cornell.edu] Sent: 22 September 2006 00:56 To: CCD-world at ctio.noao.edu Subject: CCD-world: Wavefront sensor for 750 to 900 nm Does anyone have suggestions for an imager for use as a wavefront sensor between 750 to 900 nm?, Ideally, it could be run at up to 5 KHz frame rates with at least 20 x 20 effective pixels. Right now, I'm using an e2V CCD-39 (80x80,4-tap), which works well, but I'm curious if anyone could suggest any alternatives. I'm considering the e2V CCD-60 (128x128 EMCCD, single tap), but it's a bit slow. Devices available now and in the near term (within 0 to 3 years) are of interest. Thanks, and best regards, Kevin T.C. Jim, Ph.D. ktj1 at cornell.edu http://kjimaging.com 1334 Kanewai St., Honolulu, HI 96816 (808)779-7947 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20060922/c45660d3/attachment.html From ben at lcogt.net Fri Sep 29 11:08:01 2006 From: ben at lcogt.net (Benjamin J Haldeman) Date: Fri, 29 Sep 2006 08:08:01 -0700 Subject: CCD-world: camera postdoc/temporary position Message-ID: Hello CCD-world. I am a mechanical engineer working at Las Cumbres Observatory (www.lcogt.net). We are building a global network of .9m and 2m telescopes, and are beginning camera projects here in Santa Barbara, CA. Our initial goal is to make several 2x2 mosaics of 4k by 4k fairchild chips. We are a new company and are just starting to set up facilities for dewars, clean room, ccd characterization, electronics... We would like to hire a ccd/camera or dewar person for a post doc or equivalent position. This position could be a couple of months to up to a year. A phd is not mandatory, but appropriate experience is. Thanks Benjamin Haldeman ben at lcogt.net 805-708-8902 From rudistromer at shaw.ca Sun Oct 8 19:10:08 2006 From: rudistromer at shaw.ca (Rudi Stromer) Date: Sun, 08 Oct 2006 17:10:08 -0600 Subject: CCD-world: has anybody used the polymicro fbp fiber? Message-ID: <0J6U007OHB12X5C0@l-daemon> Regards Rudi Stromer -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20061008/11eacb47/attachment.html From gas at aao.gov.au Tue Oct 10 19:58:09 2006 From: gas at aao.gov.au (Greg Smith) Date: Wed, 11 Oct 2006 09:58:09 +1000 Subject: CCD-world: has anybody used the polymicro fbp fiber? In-Reply-To: <0J6U007OHB12X5C0@l-daemon> References: <0J6U007OHB12X5C0@l-daemon> Message-ID: <452C3391.6010908@aao.gov.au> Hi Rudi, The AAO uses Polymicro FBP140168196 for its AAOmega/2dF system. We have ~800 fibres, each about 30m long. Greg Rudi Stromer wrote: > > > > > > Regards > > > > Rudi Stromer > > > > ------------------------------------------------------------------------ > > > -- CCD-world -- > CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu > Standard replies will go to the list; address personal replies manually. > For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world > From dbaade at eso.org Wed Oct 11 12:22:40 2006 From: dbaade at eso.org (Dietrich Baade) Date: Wed, 11 Oct 2006 18:22:40 +0200 Subject: CCD-world: has anybody used the polymicro fbp fiber? In-Reply-To: <0J6U007OHB12X5C0@l-daemon> References: <0J6U007OHB12X5C0@l-daemon> Message-ID: <452D1A50.6010705@eso.org> Hi Rudi, My colleague Gerardo Avila kindly provided the following information: "This fibre is now the 'standard' for astronomical aplications. Just have a look in the SPIE proceedings of the last conf in Orlando and you will notice that most fibre instruments use them. The internal transmission in the UV-blue region of this fibre is very close to the theoretical limit given by the Rayleigh dsipersion. Inthe red- near IR this fibre does not show the annoying absortion bands of the OH radicals ('water' contamination). The cut-off in the IR is at 1.9 um." Hope this helps. Best wishes, Dietrich. From jbeletic at teledyne.com Wed Oct 11 15:23:29 2006 From: jbeletic at teledyne.com (James W Beletic) Date: Wed, 11 Oct 2006 12:23:29 -0700 Subject: CCD-world: New company name: Teledyne Imaging Sensors Message-ID: Dear CCD-world members, The sale of the Rockwell Scientific Company (RSC) to Teledyne Technologies, Inc (teledyne.com) was completed last month, and the signs on our buildings have been changed. The name of our business unit that designs and fabricates focal plane arrays is now: Teledyne Imaging Sensors Now that our integration into Teledyne is well underway, we have a better sense of what this means to our work in astronomy. I am pleased to report that Teledyne is very proud of our work in astronomy, and our commitment to the needs of the astronomical community is as strong as ever. All of our staff and our new owner are committed to our mission of providing the best possible focal plane arrays to astronomy. The change to new ownership should be nearly transparent to all of you. We will keep the same phone numbers, but we now have new E-mail addresses: @teledyne.com Since I last wrote to you, we have hired a new program manager who will concentrate on astronomy. His name is Dr. Murali Rao, and he works closely with James Garnett, who is the program management lead for astronomy. Please contact Murali or James to get information about our FPAs or the SIDECAR ASIC, and of course, feel free to contact me if I can ever help. Our e-mail addresses are: mrao at teledyne.com jgarnett at teledyne.com jbeletic at teledyne.com All the best, Jim ------------------------------------------ James W. Beletic, Ph.D. Director, Sensor Systems Teledyne Imaging Sensors Phone: +1 805 373 4830 ------------------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20061011/2fa86e5d/attachment.html From caa at ifa.hawaii.edu Thu Nov 2 16:38:05 2006 From: caa at ifa.hawaii.edu (Colin Aspin) Date: Thu, 2 Nov 2006 09:38:05 -1000 Subject: CCD-world: Tek 2K 24um pixels Message-ID: <18CA4806-4C56-4C4D-889D-569D55088A4F@ifa.hawaii.edu> Hi All, Does anyone have one of the old Tek 2K 24um pixel CCDs that they don't use any more? We have one in an instrument at the UH 88" telescope and I'd like to get a backup chip in case of any failure. I do appreciate these are 'old technology' and we would be better with a more modern detector, but, our Faculty are happy using it and we don't have funds to re-design and re-implement a different one. cheers, colin aspin -- Colin Aspin UH Telescopes Manager Institute for Astronomy University of Hawaii 640 N Aohoku Place Hilo, HI 96720 (808) 932-2392 (office) (808) 960-5089 (cell) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20061102/739df835/attachment.html From bxye at bao.ac.cn Thu Nov 23 22:41:39 2006 From: bxye at bao.ac.cn (Binxun Ye) Date: Fri, 24 Nov 2006 09:41:39 +0800 Subject: CCD-world: looking for IR standard service Message-ID: <000d01c70f69$b0c769f0$42a9e29f@thtfcomputer> Hi all, Does anyone know where we can find a service for absolute calibration of an InSb diode used as a standard to the QE measurements of SWIR arrays (up to 2.5mu)? Best Regards Binxun Ye bxye at bao.ac.cn -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20061124/20701b98/attachment.html From ecw2f at charter.net Thu Dec 7 22:45:34 2006 From: ecw2f at charter.net (EC Welch) Date: Thu, 07 Dec 2006 17:45:34 -0800 Subject: CCD-world: Cryo Leak Message-ID: <4578C3BE.6050307@charter.net> Hi, Things have been slow on CCD World for a while so maybe I could ask a not to technical question. I have a TK 512 back side c hip in an all Al cryo. The front plate seals to the cylindrical housing with a 6 in. dia O ring. The back plate seals similarly to the housing. The front plate has a 2 in quartz window with O ring seal. The back plate has a Bendix hermetic seal connector with an O ring and a vacuum port with an O ring. All O rings are 1/8 in. dia. in grooves. I evac. to 6 microns and can reach -60C with a 4 stage Peltier stack and 20C water cooling. My problem is inability to maintain an adequate vacuum. In about 48 hrs the vacuum has decreased such that the best temp. is only about -40C. Or about 20 micron loss in 24 hrs. I have tried spraying acetone on the seals and looking for a twitch in the vac. guage, and immersing the whole thing in methanol, pressurize to 40 psi, and looking for fine bubbles with no luck. So, my question. Is there a practical test I could run, or is there a facility I could send the cryo to for a leak test? Regards, EC Welch From dgulbransen at teledyne.com Fri Dec 8 11:21:20 2006 From: dgulbransen at teledyne.com (David J Gulbransen) Date: Fri, 8 Dec 2006 06:21:20 -0800 Subject: CCD-world: Cryo Leak In-Reply-To: <4578C3BE.6050307@charter.net> Message-ID: The best way to find vacuum leaks is a helium leak tester. If you don't have one, you can try a web search to find a service provider in your area. Dave Gulbransen ______________________ David J Gulbransen Principal Scientist Teledyne Imaging Sensors 5212 Verdugo Way C2-3 Camarillo, CA 93012 Email: dgulbransen at teledyne.com EC Welch Sent by: ccd-world-bounces at ctio.noao.edu 12/07/2006 05:45 PM Please respond to Optical & SWIR imager development for professional astronomy To CCD World cc Subject CCD-world: Cryo Leak Hi, Things have been slow on CCD World for a while so maybe I could ask a not to technical question. I have a TK 512 back side c hip in an all Al cryo. The front plate seals to the cylindrical housing with a 6 in. dia O ring. The back plate seals similarly to the housing. The front plate has a 2 in quartz window with O ring seal. The back plate has a Bendix hermetic seal connector with an O ring and a vacuum port with an O ring. All O rings are 1/8 in. dia. in grooves. I evac. to 6 microns and can reach -60C with a 4 stage Peltier stack and 20C water cooling. My problem is inability to maintain an adequate vacuum. In about 48 hrs the vacuum has decreased such that the best temp. is only about -40C. Or about 20 micron loss in 24 hrs. I have tried spraying acetone on the seals and looking for a twitch in the vac. guage, and immersing the whole thing in methanol, pressurize to 40 psi, and looking for fine bubbles with no luck. So, my question. Is there a practical test I could run, or is there a facility I could send the cryo to for a leak test? Regards, EC Welch -- CCD-world -- CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu Standard replies will go to the list; address personal replies manually. For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.ctio.noao.edu/pipermail/ccd-world/attachments/20061208/d7403bdb/attachment.html From Paul.Jorden at e2v.com Fri Dec 8 11:21:49 2006 From: Paul.Jorden at e2v.com (Jorden, Paul) Date: Fri, 8 Dec 2006 14:21:49 -0000 Subject: CCD-world: Cryo Leak Message-ID: <90511C6E9D0A89419745854EACE4C7A801A5BD23@whl46.e2v.com> to EC Welch, et al, you could have a low level leak, or it could be outgassing. if the cryo is not baked, and merely aluminium, perhaps it is just outgassing? have you tried pumping it for a long time (eg at least 24 hrs or more). does it have a getter inside? (if so, could it be saturated?) even if the cryo is clean, perhaps the various internal components, including Peltier, are still outgassing. perhaps someone will suggest a leak test facility. good luck, Paul J > -----Original Message----- > From: EC Welch [mailto:ecw2f at charter.net] > Sent: 08 December 2006 01:46 > To: CCD World > Subject: CCD-world: Cryo Leak > > > Hi, > Things have been slow on CCD World for a while so maybe I > could ask > a not to technical question. I have a TK 512 back side c hip > in an all > Al cryo. The front plate seals to the cylindrical housing > with a 6 in. > dia O ring. The back plate seals similarly to the housing. The front > plate has a 2 in quartz window with O ring seal. The back plate has a > Bendix hermetic seal connector with an O ring and a vacuum > port with an > O ring. All O rings are 1/8 in. dia. in grooves. > I evac. to 6 microns and can reach -60C with a 4 stage > Peltier stack > and 20C water cooling. My problem is inability to maintain an > adequate > vacuum. In about 48 hrs the vacuum has decreased such that the best > temp. is only about -40C. Or about 20 micron loss in 24 hrs. > I have tried spraying acetone on the seals and looking > for a twitch > in the vac. guage, and immersing the whole thing in methanol, > pressurize > to 40 psi, and looking for fine bubbles with no luck. > So, my question. Is there a practical test I could run, > or is there > a facility I could send the cryo to for a leak test? > Regards, > EC Welch > > -- CCD-world -- > CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu > Standard replies will go to the list; address personal > replies manually. > For more information, please go to: > http://www.ctio.noao.edu/mailman/listinfo/ccd-world > From pmoore at noao.edu Fri Dec 8 13:35:01 2006 From: pmoore at noao.edu (Peter Moore) Date: Fri, 08 Dec 2006 09:35:01 -0700 Subject: CCD-world: Cryo Leak In-Reply-To: <4578C3BE.6050307@charter.net> References: <4578C3BE.6050307@charter.net> Message-ID: Hi E.C .. I agree entirely .. CCD-WORLD _does_need_stirring_; I miss the early morning emails explaining the triumphs and smoking guns of the detector gurus :-) My 2c .. to try and to be appear useful (hey, careful you guys, I can hear your comments !), and to determine if you have a (severe) outgassing problem or a leak. This one from Bill who kindly keeps such useful indicators pasted to his wall space. Is it a leak or outgassing? 1. Pump the cryostat to at least 10mTorr. 2. As you pump, record the time taken to pump from 100mTorr to 10mTorr. 3. Valve off the pump and let the leak / outgassing increase the pressure to 100mTorr again. 4. Open the valve and pump again, noting the time it takes to reach 10mTorr the second time. 5. Rule of thumb. a) If the second pumping time is approximately the same as the first pump time, then the problem is predominantly leakage. b) If the second pumping time is shorter than the first pumping time, then the problem is predominantly outgassing. Note that since you are using microns of Hg (They don't let me play with that material anymore :-( you should just pick two convenient pressure values to work with. Good luck EC, Peter. Peter Moore - Detector Engineer - ETS. Email: pmoore at noao.edu Smail: National Optical Astronomy Observatory, Casilla 603, La Serena, Chile. Phone: +56 51 205233 or +56 51 205208 Faxes: +1 520 318 8303 Skype: pmoore159 Remember, Information is not knowledge; Knowledge is not Wisdom; Wisdom is not truth; Truth is not beauty; Beauty is not love ~ Frank Zappa From gbonanno at gmail.com Fri Dec 8 14:32:01 2006 From: gbonanno at gmail.com (Giovanni Bonanno) Date: Fri, 08 Dec 2006 18:32:01 +0100 Subject: CCD-world: Cryo Leak In-Reply-To: <4578C3BE.6050307@charter.net> References: <4578C3BE.6050307@charter.net> Message-ID: <4579A191.2040101@gmail.com> Hi Welch , have you used any adsorption pump inside the housing? If you don't use a chemisorption inside the cryostat, like for example Zeolite (A5) o Charcoal, the outgassing can waste any kind of best vacuum in just one day. I experienced such behavior many times. Usually in laboratory you don't need any adsorption pump because you re-pump at the moment of the use. To maintain the vacuum inside the cryostat for months or years you have to use a chemisorption pump. In our cryostates depending on the volume we use 5 - 10 gr of Zeolite (A5) activated by heating at 160 ?C in vacuum for about 5 hours. Hope this can help. Regards, Giovanni EC Welch ha scritto: >Hi, > Things have been slow on CCD World for a while so maybe I could ask >a not to technical question. I have a TK 512 back side c hip in an all >Al cryo. The front plate seals to the cylindrical housing with a 6 in. >dia O ring. The back plate seals similarly to the housing. The front >plate has a 2 in quartz window with O ring seal. The back plate has a >Bendix hermetic seal connector with an O ring and a vacuum port with an >O ring. All O rings are 1/8 in. dia. in grooves. > I evac. to 6 microns and can reach -60C with a 4 stage Peltier stack >and 20C water cooling. My problem is inability to maintain an adequate >vacuum. In about 48 hrs the vacuum has decreased such that the best >temp. is only about -40C. Or about 20 micron loss in 24 hrs. > I have tried spraying acetone on the seals and looking for a twitch >in the vac. guage, and immersing the whole thing in methanol, pressurize >to 40 psi, and looking for fine bubbles with no luck. > So, my question. Is there a practical test I could run, or is there >a facility I could send the cryo to for a leak test? > Regards, > EC Welch > >-- CCD-world -- >CCD-world is fully moderated. Send posts to CCD-world at ctio.noao.edu >Standard replies will go to the list; address personal replies manually. >For more information, please go to: http://www.ctio.noao.edu/mailman/listinfo/ccd-world > > > From ecw2f at charter.net Fri Dec 8 17:40:52 2006 From: ecw2f at charter.net (EC Welch) Date: Fri, 08 Dec 2006 12:40:52 -0800 Subject: CCD-world: Cryo Leak Message-ID: <4579CDD4.8050201@charter.net> Hi Group, Thanks for the suggestions. Outgassing is a possibility. I did not mention that the only items in the cryo are the CCD chip, the CCD plastic socket and metal supporting parts, The Melcor 4 stage cooler, teflon wiring, and two inline plastic cable connectors. I heat the cryo to about 150F with a heat lamp and pump for many days until the vacuum reaches about 6 microns, which is the best my Welch 2 stage pump will do. A copper oil trap and a large Zeolite trap are between the pump and cryo. I have not included a Zeolite trap in the cryo and will shortly give this a try. If no joy, then I will search the net for a facility with a hydrogen leak detector. Regards, EC From ec at conceptual-analytics.com Fri Dec 8 18:04:19 2006 From: ec at conceptual-analytics.com (Edward Cheng) Date: Fri, 8 Dec 2006 16:04:19 -0500 Subject: CCD-world: Cryo Leak In-Reply-To: <4579CDD4.8050201@charter.net> References: <4579CDD4.8050201@charter.net> Message-ID: <483BEAE2-EDA0-47FD-898B-F48B811E56F1@conceptual-analytics.com> EC, It sounds from you description that your vacuum volume is relatively sm