JEF meeting, June 23, 2023

Meeting time and location:

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

Agenda

• Preparation of parts for ECAL modules -- Sasha
  • Crystals:

    - Received all crystals from CRYTUR [1].

    - Available for wrapping: 15 CRYTUR

    - Expect to receive the last batch of crystals from SICCAS, plan to inspect in the middle of July (Jane)

  • Received 1100 long signal cables
  • Procurement parts for the LMS:

    - 16,400 ft of optical fibers delivered to the lab. 7,600 will be delivered in September.

    - Received all plastic caps

    - Cutting Tedlar foils, preparing silicon cookies [2], etc.

• Module fabrication -- Sasha
  • Fabricated modules: Total 1586 (need to fabricate 10 remaining spares)
• Ongoing projects -- Sasha, all
  • Visual inspections of fabricated modules [3]

    -1586 modules have been checked [4]

  • Testing and labeling signal cables (connect flash ADC with the detector distribution panel) [5]

    - 725 long signal cables have been tested [6]

    - Cable tester and label maker

    - 12 bundles of signal cables are ready (out of 100)

  • Removing signal cables from the FCAL and rearranging signal cables in the hall [7] [8]

    - 400 signal cables removed, need to re-label and bundle

    - all cables have been re-arranged, two VXS crates can be removed (will be used by the ECAL)

  • Cutting optical fibers (800 fibers have been cut), gluing plastic caps (380 recently glued)[9]
  • Report from students
• Testing of PMT dividers -- Sasha / Vlad
  • All dividers have been ordered; will send all electronics components to the company to fabricate dividers on Monday next week (Chris)
  • Preparing setups for testing modules and dividers
• Proceedures
• Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak / Vlad / Hakob
  • Detector installation page
  • Updates from the meetings with Tim's group [10]
  • Discussion of the FCAL2 installation procedures [11]
  • Final mapping of low-voltage cables
  • Projects for summer students
  • Summer Students (2023)
• Light monitoring system -- Arshak
• Simulations/Analysis

Minutes

Attendees: Mark D., Phil, Jon, Sasha, Axel, Igal, Zisis, Arshak, Susan, Olga, S.T.

• Phil brought up Conference Experience for Undergraduates for the upcoming DNP meeting in Hawaii
  • Sasha will submit an abstract on behalf of all of the students working on the project this summer
  • The restriction of one speaker per poster at DNP --> several poster submissions?
• All Crytur crystals have been received, expect some spares from SICCAS (Jane to visit Shanghai in the middle of July)
• Grand total fabricated modules = 1586
  • All inspected, some early modules need to be rewrapped
• Received all long cables, labeling and testing underway
  • Recovered 400 cables from FCAL to be used for ECAL
• LMS: expect 7k feet of fibers in September
• Op-amps for PMT dividers arrived, will send all divider components to outside company to fabricate: expect 3-4 week delivery time
• Need to test modules using dark box and LED
• Survey group has started work in the hall
• Stacking to start July 10
• Mark D. requested to swap bases between FCAL modules