Agenda

Preparation of parts for ECAL modules -- Sasha
- Crystals:
  - Prepare to send 11 crystals back to SICCAS [1].
- Received 1100 short signal cables [2]
- Received 140 HV cables
- Received 24,400 ft of optical fibers.
Module fabrication -- Sasha
- All modules have been fabricated, checked, and inventorized (about 1610 modules in total)
Ongoing projects -- Sasha, all
- Visual inspections of fabricated modules [3] - done
- All crystals moved to Hall D[4] [5][6] - done
- Tested, labeled, and bundled all 100 (+ 2 spares) [7] signal cables connected from the flash ADC to the patch panel [8] - done
- Test and label 1100 short signal cables - ongoing
- Tested fabricated modules using LMS [9] - done (need to update the wiki page)
- Cutting optical fibers and gluing plastic caps [10], waiting for 7600 ft of optical fibers
- Report from students
- Refurbished (remove soldering bumps and rewrap) 42 modules. One more layer of the detector will be installed today.
- Need to wrap and fabricate about 30 modules using newly received crystals (will replace some already existing modules with low-quality crystals). Plan to finish with this during next week [11].
- Tested and labeled 120 HV cables
- Preparing optical fibers for the LMS

- cut 500 optical fibers [12]

- glue plastic caps [13]

Testing of PMT dividers -- Sasha / Vlad
- -Tested 6 dividers from the first batch. Asked to produce all remaining dividers. Expect to receive some of them in a couple of weeks
Proceedures
Installation of the FCAL2 detector & integration to GlueX -- Sasha / Arshak / Vlad / Hakob
- Detector installation [14][15][16]
- Detector installation page
- Updates from the meetings with Tim's group [17]
- Discussion of the FCAL2 installation procedures [18]
- Final mapping of low-voltage cables
- Mindy continues with wrapping crystals and soldering wires to sockets.
- Projects for summer students
- Summer Students (2023)
Light monitoring system -- Arshak
- lms_update_09_28_23.pdf
Analysis/Simulation

Minutes

Attendees: Arshak, Igal, Olga, Zisis, Sasha, Vlad B., Liping, Jane, S.T.

Milestone: all 1596 insert crystals have been installed!
Visually inspect 70 SICCAS crystals from final batch
- May send 11 back
- Several others "suspicious" (have chips, etc.) but may be still usable as spares
  - Make prototype to put in PS setup, upgrade TAC to 5x5 ?
Received batch of HV cables, have been tested and labeled
Have some PMT spares, probably want more
Work continues on optical fibers (gluing caps, polishing,...)
PMT dividers have been ordered
Performed visual inspection of lead glass in hall
- Found one with chip on PMT side (try to set these aside before installation)
- Found one with broken vacuum (no cathode color seen)
- LG assemblies with bent dividers being fixed
Arshak gave report on status of light monitoring system
- Fiber bundles separate into groups of 20 fibers for left-right routing and 40 fibers going down
- 3D printed fiber connector adapter for integrating sphere
- Chris S. working on LEDs (green, blue, purple)
- Sasha suggested ordering plate with many holes (for polishing fibers?) instead of 3D printing
- Integrating sphere: 2 ports available for LEDs
Sasha working on keeping detector support group involved with the project
Liping/Sasha working on mini-symposium proposal for April APS meeting