JEF meeting, August 20, 2021

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Meeting time and location= 9:30 am EST (JLab time) Bluejeans only

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  1. Working with MCTrajectories in simulation (Jon)
  2. eta to 2gpi^0 in FCAL(2)
  • Simulations


Attendees: Olga, Bill B., Varun, Jane, Sasha, Arshak, Jon, Zisis, Phil, Chase, Susan, Tim B., Liping, S.T.

  • No news on SICCAS crystals (company looking for another vendor for raw material)
    • Need to consider approaching management about possibly switching vendor
    • Plan to set up meeting with Eugene in near future to discuss what to do?
  • Inventory of other items needed for module construction:
    • PMTs ordered, received 50, monthly delivery schedule
    • Light guides ready to go
    • Quality of brazing could be improved
      • Task could possibly be outsourced?
      • Considering switching to 50 micron thick brass strips instead of 25 micron -- Tim identified source but width not a match to what we are currently using
    • LMS system needs work: Arshak can work on some aspects in Yerevan
  • COMCAL has been installed in hall on platform
    • Initial checkout of signals using LED looks good
    • Survey indicates a tilt, possibly due to torque due to cables
  • Need more manpower for module construction
    • Detector support group?
    • Arshak to join UNCW group
  • Fernando has designed PMT divider prototype for NPS (that could be modified for us to use for FCAL-2?)
    • Would like to have 25 to test using beam by SRC run in November
  • Jon presented usage of MCTrajectory information in the simulation of photon events
    • Indicate places in the detector where photons convert into e+/e- pairs
  • Igal's presentation on agenda was postponed until next week