JEF meeting, January 31, 2025

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Connection

Meeting time and location:

Agenda

Preparation of parts for ECAL -- Sasha

-New LMS light source is ready [1]. Will be installed and checked during next week. Parts for holding reference PMTs are ready.

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

  • Implementing ECAL into the GlueX DAQ [2]
- Six VTPs have been installed, firmware loaded
- Testing GTP trigger using individual ECAL VXS crates [3]
  • Commissioning the entire detector using the LMS (signal waveforms)
- Signal waveforms after resolving issues with the ECAL modules [4]
- Long-term stability check [5]
List of cosmic runs
  • ECAL HV interlock check [6]
  • HV module failed during cosmic run [7]
  • Tuning HV settings [8]
  • Material in front of the ECAL, TOF absorber [9][10]
  • Temperature scan in the ECAL divider region [11][12][13]
Fans replaced in the central region [14]
Lower detector high voltages [15]
Temperature of the NPS detector[16]
2 temperature sensors in the divider region connected, fan included into the detector interlock [17] -- Josh, Bobby
Temporary temperature sensors installed in the ECAL region [18]
  • Preparing for the run -- Sasha
Page for shift Takers
ECAL in the Experimental Safety Assessment Document (ESAD)
EPAS for Maintenance of the Hall D ECAL (Jlab-PTW-5236)

Restoring PS test setup [19]

Working on the plan for testing calorimeter prototype

ECAL commissioning -- Sasha, All

Calibrations

Preparations for readiness review

Minutes

Attendees: Drew, Bill, Sasha, Zhikun, Igal, Mac, Olga, Vlad, Liping, Zisis, S.T.

  • New LMS light source with 25 LEDs prepared, ready to be installed on integrating sphere
    • Want one more LMS run with current light source to monitor health of PMT dividers
  • Cosmic data used to determine new set of HV settings (3rd iteration)
  • New fans have been installed
  • Temporary temperature sensors installed in gap between chains to check impact of air flow
  • HV moduled failed, has been replaced
  • Need to set HV voltage timeout parameter to reduce frequency of tripping due to mismatched voltages
  • Mini Readiness Review for ECAL/FCAL-2 set for February 14
  • Hakob will arrive in February
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