JEF meeting, August 14, 2020

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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.

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Agenda

  • SICCAS crystals
QA tests of the first batch
Crystals installed on the PS setup

Minutes

Attendees: Jon, Tim W., Phil, Zisis, Jared, Jane, Varun, Liping, Josh, Tim B., Igal, Sasha, S.T.

  • Sasha and Josh have filled out a spreadsheet tabulating QA results for 192 crystals currently in house
    • Suspicious (outlier) crystals flagged with red text
    • Some crystals have missing chamfers
    • Will wrap some crystals over the weekend
    • We discussed arranging a meeting with SICCAS to discuss our observations and discuss potential improvements
  • Second batch of crystals from SICCAS production finished some time in September?
  • Sasha showed photographs of crystals installed in test box on one of the arms of the PS in Hall-D
    • Do benchmark measurements with "good" crystals, then replace these with discolored blocks
  • 8 new light guides were delivered to the lab
  • 19 soft iron shields have been annealed, 100 more (unannealed) expected in ~2 weeks
  • 82 mu-metal shields have arrived at the lab
  • Plan to have modified PMT base dividers to be installed in COMCAL in time for TAC run, within next 2 weeks?
  • Liping will work on letter of intent for Snowmass2021 planning meeting
    • For future JEF-related outreach, Phil mentioned the Gordon and Betty Moore foundation convening awards
  • No word yet on NSF-MRI proposal