JEF meeting, December 15, 2023

eeting time and location:

• 9:30 am EST (JLab time) remote only
• Connection information

Agenda

• Preparation of parts for ECAL -- Sasha
  • - signal cables - done
  • - signal patch panel [1] - done
  • - HV cables: received 165 short cables during this week (965 in total)
  • - HV distribution boards: in preparation
  • - LV cables: received first article of short cables, production started on Dec. 7, expect to receive the first batch in the beginning of January
  • - LV distribution boards. In production
• Ongoing projects -- Sasha, all
  • - Testing and labeling cables [2], 80 short HV cables testes and labeled during this week.
  • - Prepare modules for the TAC and prototypes (using crystals with some imperfections)
    • 26 modules for TAC [3] and 35 modules [4] for the beam tests are ready
  • - Preparation of the LMS
    • - All fibers are ready for the installation [5]
    • - Installing light-tight covers on the plastic caps [6][7][8][9] Installed 1245 covers.
    • - Received an optical bench for the integrating sphere; machined to the right size [10] [11]
  • - Radiation tests of the PMT active base [12]
  • - Inventory database and GUI for installed electronics
  • - Summer Students (2023)
• Testing of PMT dividers -- Sasha / Vlad / Aoran
  • - Testing procedure [13]
  • - Tested 480 dividers (50 during this week) [14]
• Installation of the FCAL2 detector & integration to GlueX -- Sasha / Vlad / Hakob
  • Detector installation [15][16][17]
  • Detector survey
    • - waiting for survey results
  • Detector installation page
  • Updates from the meetings with Tim's group [18]
  • Meeting with Chris Cuevas regarding installing optical fibers and patch panels
  • Installation of electronics [19]

• Lead Glass Efforts -- Malte / Mark / Kevin / Zisis
• Analysis/Simulation

Minutes

Attendees: Sasha, Vlad, Jane, Aoran, Stjepan, Liping, Jon, Olga, Hakob, S.T.

• 165 short HV cables arrived
• Bottleneck in receiving short LV cables: received first article, production started December 7
• LV distribution board in production, due week of December 18
• 26 fabricated modules ready for building small prototypes
  • 5x5 array for TAC
  • 5x5 array for measuring shower profile in PS setup
• Process of making LMS fibers light tight (using heat shrink material) ongoing: 1300 done
• Optical bench in place for integrating sphere needed for LMS (inside FCAL dark room)
• Rad-hardness tests done
• Testing of PMT dividers continue (now up to 480)
  • Found one bad connector, 4-5 bad dividers
• Updating inventory database with installed electronics
  • New racks added to GUI
• Working on transalation table (crate-slot-channel <---> detector module)
• Waiting for plexiglas (LMS for lead glass) to be completed before work on installing LMS for insert