JEF meeting, March 14, 2025
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Connection
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Connection information
Agenda
Preparation of parts for ECAL -- Sasha
- Repairing dividers: 25 dividers have been fixed by Chris (3 have to be fixed). Checked all dividers using the test setup
- The total number of available spare dividers: 42
Installation of the FCAL2 detector & integration to GlueX -- Sasha, All
Preparing for the run -- Sasha
- The support of the ECAL fans has been reinforced
- Need to perform the final checkout of all modules using the LMS. Waiting for Malte to finish repairing LG modules
(may proceed with the test during this week)
Restoring PS test setup [4]
- Move the CCAL box to EEL 126
- Use original CCAL dividers in the 5x5 prototype (check dividers using the test setup)
ECAL commissioning -- Sasha, All
Calibrations
Minutes
Attendees: Sasha, Hakob, Vlad, Igal, Xiaolin, S.T.
- 42 spare ECAL dividers are available
- Test setup in EEL 118
- Reference PMTs for LMS installed
- Radioactive sources in place
- Optical fibers installed
- Amplitudes for LMS light adjusted to fit in same FADC range as signal from alpha source
- RadCon sticker in place + plexiglas screen to prevent inadvertent contact
- Alpha source logic in NIM integration into trigger
- Set up veto for LED pulse
- Optical link to trigger crate
- Final detector checkout awaits completion of FCAL lead glass work and other maintenance in dark room
- Space in EEL 126 set up for construction of lead glass+lead tungstate prototype to be tested in PS arm
- Plan to use COMCAL box to house 5x5 lead tungstate + 5x4 lead glass modules
- Some discussion of additional storage for FCAL-2 components: outside storage? ESB?
- At Calorimeter meeting decision regarding shower algorithm made: use island for insert, keep old algorithm for lead glass because could not get improvement using island algorithm in this region