JEF meeting, March 10, 2023

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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
    • Wrapped crystals: 32 (Mindy)
      • 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 after the run in the end of March.
      • Parts. 60 remaining PMT housings and cylinders have been ordered by Tim; should be ready for fabrication in about 2 months
  • Module fabrication -- Sasha
    • Fabricated modules: Total 1455 (5 modules fabricated since last week)
      Currently available for fabrication: 27
  • Testing of PMT dividers -- Sasha / Arshak
    • FCAL2 modules with dividers installed on the CCAL [2]
  • Installation of the FCAL2 detector -- Sasha / Arshak
  • Light Monitoring System -- Arshak
  • Simulations/Analysis

Minutes

Attendees: Arshak, Sasha, Phil, Bill, Zisis, Igal, Susan, Jane, Olga, S.T.

  • Grand total of fabricated modules now 1455
  • Received ESR foil, George from detector support group preshaping for 95 Crytur crystals due in May
  • Mindy from detector support group wrapped all available crystals
  • No news on PMT housing, due within the next 2 months
  • Sasha took data using new PMT dividers in 5x5 CCAL
  • New PCBs with new connector for LV coming soon
  • After run ends, need to convert 40 CCAL modules into FCAL-2 modules
  • ~11 students in the pipeline for summer work (module fabrication/testing, ...)
  • Deferred discussion of LMS until next meeting
  • Discussion of impact of GEMTRD proposal continued