Latest revision as of 00:11, 11 March 2022

Meeting time and location

Preparation for mass production of FCAL2 modules -- Sasha
- DSG has preshaped more than 200 ESR foils, had a meeting today regarding wrapping crystals
- Olga visited JLab: prepared 3 sets of Silicon cookies and tested diameter of about 300 PMTs
  - quite a few PMTs have to be exchanged with NPS
  - Two fixtures (42 cookies in each) and digital scales have been ordered. The loan agreement with GWU will be submitted for approval in the beginning of next week.
- Igal is cutting Tedlar and Kapton
- Some backlog with brazing straps, communicated with Tim and Mark regarding getting Chris more involved.
- Quite a few soft iron housings are tight (no space for kapton film) have to be 'polished', met with Tim
Module fabrication -- Sasha
- Modules fabricated by Arshak and Sasha (list on Google Drive) (grand total 115, fabricated in about a month)
- Fabricated modules in TEDF
- Status of fabrication
- Budget estimates requested by Eugene (construction, parts including 50 crystals, electronics, engineering (frame, parts, infrastructure)): 600 k
Light Monitoring System
COMCAL tests, TAC running, etc.
Data analysis
Simulations

Attendees: Bill,Igal,Arshak,Phil,Sasha,Tim W.,Olga,Jon,Liping,Jane,Azizah

Detector support group has been preshaping ESR foils and about to start wrapping crystals
Olga prepared cookies and checked PMT diameters
PMTs that don't meet our tolerance spec exchanged with NPS
Sasha ordered 3 more fixtures for cookie prep
Loan agreement with GWU to be approved soon, also need contract with GWU
GWU could also help with light guides, cutting foils, divider tests
1510 PMTs in total expected from Hamamatsu + 140 in COMCAL
Module fabrication continues, now have 115 completed as of the meeting
Liping was contacted by a former student interested in machine learning
- Igal has a potential project 5

@@ Line 12: / Line 12: @@
 ** Igal is cutting Tedlar and Kapton
 ** Some backlog with brazing straps, communicated with Tim and Mark regarding getting Chris more involved.
-** Quite a few mu-metal housings are tight (no space for kapton film)  have to be 'polished', met with Tim
+** Quite a few soft iron housings are tight (no space for kapton film)  have to be 'polished', met with Tim
 * Module fabrication  -- Sasha
 **[https://halldweb.jlab.org/detectors/fcal2/module_fabrication/status/module_fabrication.pdf  Modules fabricated by Arshak and Sasha] [https://docs.google.com/document/d/1upI9M_RNR4qipzwg-SmxmzkqoCDU294x7Y3jT5M6DVY/edit (list on Google Drive)] (grand total 115, fabricated in about a month)