Latest revision as of 20:44, 17 February 2022

Meeting time and location

Attendees: Bill,Olga,Igal,Sasha,Tegan,Zisis,Jane,Arshak,Tim B.,Jon,Liping,Susan,Phil,S.T.

Sasha went over preparations from mass production of FCAL2 modules
- Inventory of SICCAS crystals that NPS does not plan to use: ~440 "good" crystals
- Detector support group started working on pre-shaping ESR, also will work on wrapping
- Equipment for GWU (for production of silicon cookies): airflow box, vacuum chamber, pump
- Arshak and Sasha started producing cookies and light guides
- Chris A. working on brazing brass strips (some assemblies too small)
Arshak and Sasha constructed 14 new modules
- Takes about 30-40 minutes per module
- Can produce ~20/week/person
- Keeping track of progress on google drive
- PMT divider work on hold in favor of module production for now
Arshak working on light monitoring system
- Enough parts to construct plexiglas prototype for 5x5 crystal array
Loan agreement and contract with GWU in the works
Tegan presented an update on photon reconstruction efficiencies using single and double photon gun simulations
- Island and default algorithms have almost the same efficiency as a function of angle for single photons
- Efficiency profile tracks with conversions in material upstream of FCAL
- Comparison of 2-photon separation between two algorithms still needs work

@@ Line 7: / Line 7: @@
 ** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/2_4_22/siccas_nps.jpg  Inventory of NPS SICCAS crystals]
 ** Coordination activities with the DSG
-** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/2_4_22/equip_gwu.jpg  Equipment for GWU (production of silicon cookies)]
+** [https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/2_4_22/equip_gwu.jpg  Equipment for GWU (production of silicon cookies, air flow hood )]
 * Module fabrication  -- Sasha
 ** [https://logbooks.jlab.org/entry/3982001  Arshak and Sasha are working on preparation of parts]