Difference between revisions of "Jan 08,2013 Readout"
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− | ''Attending: | + | ''Attending: Elton, Beni, David, Yi (JLab); Christina, Pavlos (Athens); Shaun, Zisis, Andrei (UofR); Hayk, Serguei, Orlando, Alam, Will (USM). |
+ | |||
+ | # Announcements | ||
+ | # Review of Action Items | ||
+ | # Monitoring | ||
+ | #* All 100 Bcal boards are completed | ||
+ | #* Nice population board by Stratos. Extras for Athens as spares | ||
+ | #* Packing and getting ready for shipping | ||
+ | #* Strips will be shipped in groups of 24 strings | ||
+ | #* Bcal project will be completed after shipment | ||
+ | #* Fcal report will be given next week at the Cal Working group meeting | ||
+ | #* Elton and Christine will work out shipping details offline. | ||
+ | # Update from USM | ||
+ | ## [https://mailman.jlab.org/pipermail/halld-cal/2012-December/000687.html Light guide shipment] | ||
+ | ##* Elton suggests that the packing of light guides be reviewed and improved. | ||
+ | ##* Light guide gluing procedures should start in about a week | ||
+ | ##* Light guide dimensions need to be checked to ensure that there will be no mechanical interferences | ||
+ | ##* Will: Iñaki claims that a precise measurement could be done with the new measurement device. Not clear if these are being done systematically. | ||
+ | ## [[FILE:MPPC-Report.pdf]], Alam. | ||
+ | ##* 20 "bad" MPPCs have been broken down according to problems | ||
+ | ##* 17 are scratched. They will be remeasured to see how the scratches affect performance. If necessary, the scratches may be filled by adding the same epoxy used by Hamamatsu. | ||
+ | ##* Recent photos of scratched SiPMs will be uploaded to the data base. | ||
+ | ##* Francisco reported (through Will) that the last 360 units are still being held in customs in Santiago requesting some storage fees. Should get resolved by next week. | ||
+ | ## [[FILE:parrameter_1.2_over_bdv_v4.pdf]], Orlando. | ||
+ | ##* Summary of measurements at 1.0, 1.1 and 1.2 above threshold were reported at three temperatures. | ||
+ | ##* Note added 1/10/12: The histograms were created for 1769 SiPMs. | ||
+ | ##* Zisis: Suggests that the data be summarized and submitted to NIM | ||
+ | ##* Orlando: Gain vs voltage for all MPPCs can be used to extract the capacitance. He will submit a histogram of capacitances to add to the minutes | ||
+ | ##* Note added 1/10/12: Histogram of capacitances per pixel is shown in [[Media:Capacitance temperature.gif|Capacitance]]. The capacitance of the array is 3600x16 times larger. | ||
+ | # Status of testing at JLab | ||
+ | # Status of testing at Regina | ||
+ | #* Shaun continues PDE measurements, which will be reported on soon | ||
+ | # Simulations | ||
+ | #* Andrei and Irina have completed most of the simulations for sampling | ||
+ | #* Andrei is working on understanding the cells with little energy deposited. | ||
+ | # Beam Tests, Cosmics | ||
+ | # Other | ||
+ | #* Zisis: NIM paper on fibers was submitted to NIM on Dec 18 | ||
+ | #* Shaun will come to Jlab in a couple of weeks and will help support work on testing calorimeter modules after gluing. |
Latest revision as of 18:37, 15 January 2013
Teleconference Time: 11:00 a.m. EST
- ESNET (Number is 8542553) and EVO session (GlueX Calorimetry meeting room)
- Phone connection only upon request.
- +1-866-740-1260 : US and Canada
- +1-303-248-0285 : International
- then use participant code: 3421244# (the # is needed when using the phone)
- OR from www.readytalk.com type access code 3421244 into "join a meeting" without the # (you need java plugin)
Contents
Participant Direct Lines
- JLab Phone: in CC F326 is 757-269-6460 (usual room)
- JLab Phone in CC L207 is 757-269-7084
- Phone in the Regina Videoconference Suite is 306-585-4204
- Athens Phone: in Christina's office is 011-30-210-727-6947
Items for followup from previous meeting
Presentations from recent meetings
Tentative Agenda
- Announcements
- Review of Action Items
- Monitoring
- Update from USM
- Light guide shipment
- File:MPPC-Report.pdf, Alam.
- File:Parrameter 1.2 over bdv v4.pdf, Orlando.
- Status of testing at JLab
- Status of testing at Regina
- Simulations
- Beam Tests, Cosmics
- Other
Minutes
Attending: Elton, Beni, David, Yi (JLab); Christina, Pavlos (Athens); Shaun, Zisis, Andrei (UofR); Hayk, Serguei, Orlando, Alam, Will (USM).
- Announcements
- Review of Action Items
- Monitoring
- All 100 Bcal boards are completed
- Nice population board by Stratos. Extras for Athens as spares
- Packing and getting ready for shipping
- Strips will be shipped in groups of 24 strings
- Bcal project will be completed after shipment
- Fcal report will be given next week at the Cal Working group meeting
- Elton and Christine will work out shipping details offline.
- Update from USM
- Light guide shipment
- Elton suggests that the packing of light guides be reviewed and improved.
- Light guide gluing procedures should start in about a week
- Light guide dimensions need to be checked to ensure that there will be no mechanical interferences
- Will: Iñaki claims that a precise measurement could be done with the new measurement device. Not clear if these are being done systematically.
- File:MPPC-Report.pdf, Alam.
- 20 "bad" MPPCs have been broken down according to problems
- 17 are scratched. They will be remeasured to see how the scratches affect performance. If necessary, the scratches may be filled by adding the same epoxy used by Hamamatsu.
- Recent photos of scratched SiPMs will be uploaded to the data base.
- Francisco reported (through Will) that the last 360 units are still being held in customs in Santiago requesting some storage fees. Should get resolved by next week.
- File:Parrameter 1.2 over bdv v4.pdf, Orlando.
- Summary of measurements at 1.0, 1.1 and 1.2 above threshold were reported at three temperatures.
- Note added 1/10/12: The histograms were created for 1769 SiPMs.
- Zisis: Suggests that the data be summarized and submitted to NIM
- Orlando: Gain vs voltage for all MPPCs can be used to extract the capacitance. He will submit a histogram of capacitances to add to the minutes
- Note added 1/10/12: Histogram of capacitances per pixel is shown in Capacitance. The capacitance of the array is 3600x16 times larger.
- Light guide shipment
- Status of testing at JLab
- Status of testing at Regina
- Shaun continues PDE measurements, which will be reported on soon
- Simulations
- Andrei and Irina have completed most of the simulations for sampling
- Andrei is working on understanding the cells with little energy deposited.
- Beam Tests, Cosmics
- Other
- Zisis: NIM paper on fibers was submitted to NIM on Dec 18
- Shaun will come to Jlab in a couple of weeks and will help support work on testing calorimeter modules after gluing.