Difference between revisions of "JEF meeting, March 24, 2023"
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*'''Preparation of parts for FCAL2 modules''' -- Sasha | *'''Preparation of parts for FCAL2 modules''' -- Sasha | ||
− | * '''Module fabrication''' -- Sasha | + | ** Available crystals: |
− | * '''Testing of PMT dividers''' -- Sasha / Arshak | + | **: 1450 (modules) |
+ | **: 32 (ready for fabrication) | ||
+ | **: 40 (installed on CCAL) available on March 20 | ||
+ | **: (some CCAL crystals from the inner part will not be used for the FCAL2) | ||
+ | **: 95 expect to receive from CRYTUR in May [https://halldweb.jlab.org/wiki/index.php/CRYTUR ] | ||
+ | **: Total 1617 | ||
+ | ** Olga brought about 200 Silicon cookies from GW. The quality is good. | ||
+ | ** George (DSG group) finished with disassembling CCAL modules and removing LMS caps. Will work on preshaping ESR reflectors for CRYTUR. The oven will be ready in a week. | ||
+ | ** Mindy (DSG group) solder wires to sockets (while waiting for crystals). More crystals will come from the CCAL during next week. | ||
+ | * '''Module fabrication''' -- Sasha | ||
+ | <!-- ** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/fcal_fabrication.pdf Status of fabrication ] --> | ||
+ | ** Fabricated modules: <span style="color:#FF0000"> Total 1482 </span> (12 modules fabricated since last week) | ||
+ | **: Currently available for fabrication: 0 | ||
+ | <!-- *** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf All SICCAS 576 + 3 SICCAS] --> | ||
+ | <!-- *** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication_crytur.pdf 834 CRYTUR], available: 1 --> | ||
+ | <!-- *** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/11_11_22 Moving modules to the new lab (EEL108)] --> | ||
+ | * '''[[Testing of PMT dividers]]''' -- Sasha / Arshak | ||
+ | ** FCAL2 modules with dividers installed on the CCAL [https://logbooks.jlab.org/entry/4140983] | ||
* '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Arshak | * '''Installation of the FCAL2 detector & integration to GlueX''' -- Sasha / Arshak | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/FCAL_Installation Detector installation page] | ||
+ | ** Updates from the meetings with Tim's group [https://halldweb.jlab.org/wiki/index.php/FCAL_2_Design_Meetings] | ||
+ | ** Manpower and division of tasks | ||
+ | ** [https://halldweb.jlab.org/wiki/index.php/List_of_tasks_and_manpower Projects for summer students] | ||
+ | ** [https://halldweb.jlab.org/detectors/fcal2/installation/students_2023/list_of_students_2023.xlsx Summer Students (2023) ] | ||
+ | ** Meeting with Hovanes (Slow control) | ||
+ | **: Translation tables [https://halldweb.jlab.org/wiki/index.php/FCAL2_Crates] | ||
* '''Light Monitoring System''' -- Arshak | * '''Light Monitoring System''' -- Arshak | ||
+ | ** [https://userweb.jlab.org/~aasatury/Fcal_LMS/lms_update_march_23.pdf Update on LMS] | ||
* '''Simulations/Analysis''' | * '''Simulations/Analysis''' | ||
+ | |||
+ | =Minutes= | ||
+ | Attendees: Igal, Sasha, Arshak, Bill, Olga, Justin, Eugene, Liping, Jon, Zisis, Jane, S.T. | ||
+ | * Olga brought 200 cookies -- have enough to cover everything + some spares | ||
+ | * COMCAL was moved to ESB to be disassembled (as of the meeting it was slightly activated) | ||
+ | * 1482 FCAL-2 modules have been fabricated to date | ||
+ | * Design for patch panels for HV has been slightly revised, will be positioned outside FCAL dark box | ||
+ | * Settled on ECAL (like FCAL, CCAL, etc.) for the name for the insert as far the translation table, etc. is concerned | ||
+ | * Low voltage connection to PCB revised to use locking connector | ||
+ | ** Also no longer using unshielded ribbon cables for LV distribution | ||
+ | ** One new PCB with new divider design has been procured -- will need to make the full order soon | ||
+ | * Sasha performed some tests using 3x amplification using beam -- linearity was good | ||
+ | * Arshak/Vlad/Sasha to meet with Dave Kashy (who worked on HyCAL for Hall B) regarding any engineering concerns/gotchas we may have overlooked | ||
+ | * We had a long discussion about the proposed GEMTRD test in Hall-D using the GlueX detector with the FCAL insert | ||
+ | ** Plan revised from original 10 PAC days to a 7 calendar day test run for a small-scale GEMTRD prototype | ||
+ | *** Much back-and-forth regarding how/when to schedule this test run during the ~212 day GlueX/JEF run period starting in 2024 | ||
+ | *** A compromise to install the GEMTRD during the winter break of the run period and run the test when the program starts back up after Christmas was proposed | ||
+ | ** Impact of insert region for e/pi separation should be considered | ||
+ | * Arshak showed a design for the individual fiber solution for the LMS that accommodates rohacel support in the inset region | ||
+ | ** Does the stress analysis suggest that we need this foam? | ||
+ | * Arshak presented pros and cons for the plexiglas and individual fiber solutions for the LMS, but no decision was made at the meeting. |
Latest revision as of 13:40, 27 March 2023
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Zoom meeting ID: 161 050 9142 Passcode: 004965
Agenda
- Preparation of parts for FCAL2 modules -- Sasha
- Available crystals:
- 1450 (modules)
- 32 (ready for fabrication)
- 40 (installed on CCAL) available on March 20
- (some CCAL crystals from the inner part will not be used for the FCAL2)
- 95 expect to receive from CRYTUR in May [1]
- Total 1617
- Olga brought about 200 Silicon cookies from GW. The quality is good.
- George (DSG group) finished with disassembling CCAL modules and removing LMS caps. Will work on preshaping ESR reflectors for CRYTUR. The oven will be ready in a week.
- Mindy (DSG group) solder wires to sockets (while waiting for crystals). More crystals will come from the CCAL during next week.
- Available crystals:
- Module fabrication -- Sasha
- Fabricated modules: Total 1482 (12 modules fabricated since last week)
- Currently available for fabrication: 0
- Fabricated modules: Total 1482 (12 modules fabricated since last week)
- Testing of PMT dividers -- Sasha / Arshak
- FCAL2 modules with dividers installed on the CCAL [2]
- Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak
- Detector installation page
- Updates from the meetings with Tim's group [3]
- Manpower and division of tasks
- Projects for summer students
- Summer Students (2023)
- Meeting with Hovanes (Slow control)
- Translation tables [4]
- Light Monitoring System -- Arshak
- Simulations/Analysis
Minutes
Attendees: Igal, Sasha, Arshak, Bill, Olga, Justin, Eugene, Liping, Jon, Zisis, Jane, S.T.
- Olga brought 200 cookies -- have enough to cover everything + some spares
- COMCAL was moved to ESB to be disassembled (as of the meeting it was slightly activated)
- 1482 FCAL-2 modules have been fabricated to date
- Design for patch panels for HV has been slightly revised, will be positioned outside FCAL dark box
- Settled on ECAL (like FCAL, CCAL, etc.) for the name for the insert as far the translation table, etc. is concerned
- Low voltage connection to PCB revised to use locking connector
- Also no longer using unshielded ribbon cables for LV distribution
- One new PCB with new divider design has been procured -- will need to make the full order soon
- Sasha performed some tests using 3x amplification using beam -- linearity was good
- Arshak/Vlad/Sasha to meet with Dave Kashy (who worked on HyCAL for Hall B) regarding any engineering concerns/gotchas we may have overlooked
- We had a long discussion about the proposed GEMTRD test in Hall-D using the GlueX detector with the FCAL insert
- Plan revised from original 10 PAC days to a 7 calendar day test run for a small-scale GEMTRD prototype
- Much back-and-forth regarding how/when to schedule this test run during the ~212 day GlueX/JEF run period starting in 2024
- A compromise to install the GEMTRD during the winter break of the run period and run the test when the program starts back up after Christmas was proposed
- Impact of insert region for e/pi separation should be considered
- Plan revised from original 10 PAC days to a 7 calendar day test run for a small-scale GEMTRD prototype
- Arshak showed a design for the individual fiber solution for the LMS that accommodates rohacel support in the inset region
- Does the stress analysis suggest that we need this foam?
- Arshak presented pros and cons for the plexiglas and individual fiber solutions for the LMS, but no decision was made at the meeting.