Latest revision as of 13:13, 28 October 2024

Connection

Meeting time and location:

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

Agenda

Preparation of parts for ECAL -- Sasha

• - HV distribution boards [1][2]

- Connectors and cables were installed on the PCBs of 2 HV distribution boards. Sammy and Chris are working on the third board, it will likely be ready during next week (Sammy also works on GEM/TRD)

- Boxes for HV boards have been just been ordered. Expected delivery date 11/15/2024.

- Vince P. has machined parts for two temporary distribution boards. Two temporary HV distribution boards were assembled. The holes for connectors were too narrow, the tech group fixed it.

- Have received all parts for the new version of the LMS light source

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

• Installation of the light distribution board of the ECAL LMS [3]

- Vlad P. has slightly modified the design of the LMS light source in order to increase the amount of light. Chris S. is working on a new board with 9 LEDs.

• Implementing ECAL into the GlueX DAQ [4]

- rocecal3 crate was fixed [5] (initial DAQ implementation [6])

- implementing flash ADC scalers [7][8]

- translation table for the ECAL (finalize/check translation DB, generate xml file, import to the CCDB) - done [9]

- implementing and verifying ECAL LMS trigger [10]

- implementing and verifying the ECAL physics trigger. First event reconstructed using the GlueX software [11]

- Start implementing VTP trigger modules. Requires modification of firmware. The trigger crates may be unavailable for 1 - 1.5 months.

- The VTP was installed in the D2-1-TOP crate, IP address assigned, and can be booted now

• Installation of scintillating paddles for cosmic tests [12] [13][14]
• ECAL HV interlock check [15]
• Cable map of the ECAL LG modules after installing ECAL [16]
• Reinstalling cables on the ECAL LV distribution board [17]
• Safety briefings - Vlad, Sasha
• Detector installation page
• Installation of temporary HV distribution boards and testing flash ADC scalers [18][19]
• FCAL2 Engineering Meetings
• Remaining installation tasks

- Connecting cooling pipes to the ECAL fan (done by tech group)

- Installing dark room ceiling and insulation inside the room, required for cooling test (almost complete)

- Test cooling system (in progress, almost complete)

- Installing HV distribution boards, start switching the detector ON (waiting for HV boxes)

Restoring PS test setup [20]

ECAL commissioning -- Sasha, All

Calibrations

Analysis/Simulation

Laveen Update

Presentation at IEEE [21]

Conference trip was not supported by Hall D

Minutes

Attendees: Bill, Igal, Sasha, Laveen, Jane, Olga, Phil, Liping, Zhikun, Vlad, S.T.

• Receive 2 temporary HV distribution boards (holes needed to be redone, but now okay)
  • Cables all assembled for these 2, 3rd bundle done ready to use when 3rd board available
  • Order for final boards out, expect delivery some time in November
  • Used to check HV interlocks -- working!
• Working on increasing light output for LMS
  • New board with 9 LEDs with smaller aperture, shine light directly on fibers
• Laveen to work on reference PMT effort
• Added another pair of scintillators for cosmic ray setup (one above FCAL, one below)
  • Covering ECAL and FCAL blocks
  • Cables need to be connected
• Cooling/environment control
  • 2 chillers ready, circulating coolant
  • Waiting for dehumidifier
  • Fan installed in dark room to blow cold air on insert
  • Will add more sensors
• DAQ
  • Read out ECAL scalers using LMS trigger at 500 Hz
    • Not EPICS yet
    • Some problem channels identified
  • Baseline (pedestal) calibration
  • Test with 3 out of 7 crates
• Schedule held up by missing HV boards -- now ready by mid December?
  • When arrive expect need another week for installation
  • Some time needed to check HV control via EPICS
• Calibration: plan to start with cosmics, then real data (Compton, Pi0)