JEF meeting, March 28, 2025

Connection

Meeting time and location:

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

Agenda

Installation of the FCAL2 detector & integration to GlueX -- Sasha, All

Preparing for the run -- Sasha

• Reconfiguring MPODs for LV power supply [1]
• Check mapping of ECAL modules [2]
• Final check of the detector
  • List of runs

Restoring PS test setup [3]

• PS test setup

Calibrations

Minutes

Attendees: Bill, Sasha, Drew, Vlad, Igal, Hakob, Zisis, Axel, Liping, Jane, S.T.

• Reconfigured MPOD for low voltage to measure voltage at end of cable
  • Voltage drop ~0.5 V
  • for consistency in setting voltages for dividers
• ECAL final check with LMS looking at waveforms
  • Found 2 swapped channels, now fixed
  • Everything okay except for one missing channel due to fiber, cosmics look okay
• Work on building small prototype for test on positron PS arm in hall proceeding
  • 5x5 array lead tungstate + 5x5 array lead glass for measuring shower profile and studying transition region
    • Lead glass currently in ESB
  • Borrowed conventional bases
  • Will use COMCAL box
  • Assembly is heavy, need to identify table that can accommodate weight, identified one currently used by EIC folks
  • VXS crate installed
  • Need 2 more FADCs
• Still considering building a small veto counter to cover region not covered by TOF