Agenda

Simulations/Analysis
Preparation of parts for FCAL2 modules -- Sasha
- Order 25 CRYTUR crystals (Total 1613 + 25 = 1638)
- Wrapped CRYTUR crystals: 727
  - Available for wrapping: 762 - 727 = 35
  - DSG group continues wrapping
- List of available parts
Module fabrication -- Sasha
- Status of fabrication
- Fabricated modules: Total 1303 (5 modules fabricated since last week)
  - All SICCAS 576 SICCAS
  - 727 CRYTUR, available: 35
Updates from the FCAL installation meetings with Tim's group -- Sasha
- October 19
- Link to the earlier design meetings

Light Monitoring System -- Arshak
DNP practice talk: Philip Cole, Engaging Undergraduate Students in Constructing the PbWO4 Calorimeter for the JEF Experiment at JLab

Minutes

Attendees: Igal, Phil, Arshak, Sasha, Zisis, Liping, Axel, Jane, Bill, Jon, Sean, S.T.

Module fabrication room has a humidity issue
- Soft iron starting to become rusty
- De-humidifier has been installed: 60% humididy -> 20% humidity
New lab is available elsewhere in EEL building but want to minimize movement of crystals (also not humidity controlled!)
PR for 25 Crytur crystals has been signed -> would lead to 42 spares
Wrapping continues (35 crystals remaining)
All PMTs received
1540 light guides have been glued to PMTs to date (not all wrapped yet)
PMT housing: waiting for ~200 pieces
Received brass straps, need ~250
Fabricated modules: 1303, expect 65 crystals by the end of the year, can fabricate 100 more this year
Installation meetings every 2 weeks
- Discussed lead glass unstacking + possible refurbishment
  - Store on shelves sorted according to various potential problems
  - Some PMTs may need to be replaced because the HV is currently at the maximum 1.8 kV
  - Some dividers may need to be replaced due to high current draw
- Will discuss location of racks + cabling
- LMS design needs to be finalized (likely go with plexiglas)
- Manpower from students? Sasha working on task division
  - Test set of crystals in dark box?
Phil gave a nice practice talk on student efforts for the DNP