JEF meeting, December 17, 2021
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Meeting time and location= 9:30 am EST (JLab time) Bluejeans only
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Agenda
- SICCAS crystals
- Module fabrication -- Sasha
- Light Monitoring System
- COMCAL tests, TAC running, etc.
- Data analysis
- Simulations
- - Sample preparation towards TMVA -- Azizah
- - FCAL island algorithm comparison -- Tegan
- - update -- ig
- Other business
Minutes
Attendees: Igal,Tegan,Zisis,Arshak,Sasha,Jane,Liping,Azizah,S.T.
- No news from SICCAS -- Sasha will send a reminder
- Should plan to meet with Jlab management in January to discuss SICCAS progress and backup solution
- Sasha coordinating with Patrizia to get involvement of detector support group to aid with module fabrication
- Would like to have 2 technicians working more-or-less full time
- Chris A. from Tim's group still continuing with brazing -- 12 strip assemblies ready to go by end of year
- Expect will need to move module assembly space in March/April of next year
- PMT delivery continues; Olga worked on checking dimensions
- Axel S. taking over from Bill B. at GW as PI; Sasha working on paperwork for loan agreement with GWU for PMT divider tests
- Also could consider outsourcing silicon cookie preparation
- PMT divider for NPS ready to go; Chris S. will build 1-3 in January for bench tests. Maybe beam tests during upcoming PrimeX run?
- Sasha setting up for mass module production
- Task list highlights steps where help will be needed and steps where help may be needed
- Most delicate step is putting everything together and adjusting tension
- Azizah gave an update about matching true photons to reconstructed photons from ω events
- Tegan gave an update comparing efficiencies for 1 GeV shower reconstruction using Island and default algorithms for the FCAL2 geometry
- Island algorithm shows dip near 4 degrees (roughly corresponding to the interface between the insert and the lead glass blocks) but both show dip near 5 degrees
- Island algorithm slightly better for very small angles.
- Igal gave an update on η→π0γγ showing the impact of applying a TOF veto to neutral showers
- 2γ peaking background can be suppressed