JEF meeting, November 18, 2022
From GlueXWiki
Meeting time and location:
- 9:30 am EST (JLab time) remote only
- Zoom meeting ID: 161 050 9142 Passcode: 004965
Agenda
- Simulations/Analysis
- Updates -- ig
- Preparation of parts for FCAL2 modules -- Sasha
- Received 25 CRYTUR crystals during this week [1]
- Wrapped CRYTUR crystals: 772
- Available for wrapping: 10 crystals were wrapped during last week
- Mindy (DSG group) continues wrapping crystals
- Mindy will start soldering wires to sockets (short meeting with Chris and Mindy)
- List of available parts
- Module fabrication -- Sasha
- Status of fabrication
- Fabricated modules: Total 1348 (13 modules fabricated since last week)
- Installation of the FCAL2 detector -- Sasha / Arshak
- Detector installation page
- Updates from the meetings with Tim's group [2]
- Detector cabling and patch panels for the FCAL insert
- Manpower and division of tasks
- Projects for summer students
- Light Monitoring System -- Arshak
Minutes
Attendees: Igal, Sasha, Arshak, Liping, Zisis, Eugene, Phil, Olga, Susan, Malte, Azizah, Jane, Jon, Axel, S.T.
- Igal gave an update on η→π0γγ
- Using low-level objects instead of reaction filter/DSelector
- Saw no obvious difference between GlueX and JEF, for either shower reconstruction algorithm, when TOF veto was not applied
- Saw differences between GlueX and JEF when the TOF veto was applied
- Crystal wrapping continues: 10 new ones, 5 more week of 11/21/22
- Next batch of crystals next month, 60 outstanding
- All brass assemblies are now on site, some straps still fail
- Total number of fabricated modules = 1348, expect to have constructed 1400 by end of the year
- January: take COMCAL apart
- Sasha went over task division (JEF responsibility vs engineering support) for FCAL2 installation in great detail
- List of tasks + manpower (student support)
- Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer
- Need space for students in CEBAF center + EEL
- Several groups (Lamar U., FIU, GWU, URegina,...) will be sending students to the Lab during the late spring/summer
- Request for space in hall
- Cabling scheme: optimization of rate per crate for insert (need 7 crates)
- List of tasks + manpower (student support)
- Sasha working on test stand for PMT divider studies
- PMT divider procurement coming up soon
- Sasha working on contract with GWU for PMT divider work
- Arshak continuing to work on LMS studies with plexiglas+fibers
- Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot
- 33% absorber on order
- Preparing for crosstalk measurements
- Tim W. tentative design for holding plexiglas plate in place
- Still need to finalize design: next 2 weeks?
- Put 25% absorber on border (~4 cm) of plexiglas -- improved uniformity in 1D plot, will look at 2D plot
