Difference between revisions of "JEF meeting, November 12, 2021"
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* Sasha installed 12 modules to check using PS setup in hall | * Sasha installed 12 modules to check using PS setup in hall | ||
** Read out with PS trigger, looked at image of each module on the PS | ** Read out with PS trigger, looked at image of each module on the PS | ||
− | ** Looked at single module resolutions = ~2.5-3% | + | ** Looked at single module resolutions = ~2.5-3% σE/E |
* Sasha also looked at a set of 12 crystals (9 CRYTUR, 3 SICCAS) with optical grease between crystal and PMT | * Sasha also looked at a set of 12 crystals (9 CRYTUR, 3 SICCAS) with optical grease between crystal and PMT | ||
** Does not see much systematic difference between coupling with optical grease and actual production version using light guide and cookie | ** Does not see much systematic difference between coupling with optical grease and actual production version using light guide and cookie | ||
** SICCAS crystals: 1 brown, 1 scratched, 1 "ok": brown crystal showed largest deviation from average energy resolution | ** SICCAS crystals: 1 brown, 1 scratched, 1 "ok": brown crystal showed largest deviation from average energy resolution |
Latest revision as of 09:38, 15 November 2021
Meeting time and location= 9:30 am EST (JLab time) Bluejeans only
Connection instructions
We are using BlueJeans Video/Audio conferencing. Our meeting ID number is 992533564. Click "Expand" for more details.
- Make sure you have created a BlueJeans account via your JLab CUE account using this link:
- http://jlab.bluejeans.com (You should only need to do this once)
- If connecting via Web Browser: click this link (no passcode is needed):
- If connecting via Phone: Dial one of the following numbers and then enter the meeting ID above and hit "#" or "##"
- Dial: 1 888 240 2560 (US or Canada only)
- or, List of International Numbers
- If connecting via Polycom unit:
- Dial 199.48.152.152 or bjn.vc
- Enter meeting ID above
Agenda
- SICCAS crystals
- Module fabrication
- - New SICCAS crystals --Sasha
- - Beam test of fabricated modules
- COMCAL tests, TAC running, etc.
- Data analysis
- Simulations
Minutes
Attendees: Sasha,Olga,Phil,Bill,Zisis,Liping,Arshak,Tim B.,S.T.
- Management considering backup plan if SICCAS fails to deliver crystals
- Plan to report to management regarding status; also considering writing a letter
- Azizah is working on event samples for split-off studies
- Expect fabrication of modules to resume in December after end of SRC-CT experiment
- Still need manpower, hope for student manpower in summer of next year
- PMTs continuing to arrive at lab, need to check diameters
- Sasha installed 12 modules to check using PS setup in hall
- Read out with PS trigger, looked at image of each module on the PS
- Looked at single module resolutions = ~2.5-3% σE/E
- Sasha also looked at a set of 12 crystals (9 CRYTUR, 3 SICCAS) with optical grease between crystal and PMT
- Does not see much systematic difference between coupling with optical grease and actual production version using light guide and cookie
- SICCAS crystals: 1 brown, 1 scratched, 1 "ok": brown crystal showed largest deviation from average energy resolution