General EEEMCal Meeting Summary 3/21/25

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PARTICIPANTS: Richard, Joerg, Justin, Josh, Tanja, Larry, Carlos, Julie, Ioana, Sasha, Rosi, Matt Nguyen, Hrachya, Renee, Gerard, Ethan, Holly,

DISCUSSION NSF MSRI PREPROPOSAL

• No news on the pre-proposal

• Full proposal submission deadline is now 5 June 2025 (https://www.nsf.gov/funding/opportunities/mid-scale-ri-1-mid-scale-research-infrastructure-1)

• We will start working on updating the proposal document and supplementary information now and plan to have the documents ready in early May

• Actions

• Overleaf link to the proposal has been created by Renee. The link was circulated on Sept 6, 2024.
• Get updated quotes for all items (All)
• Justin will make a new google drive for collecting documents for the proposal submission
• For updating budgets - in general there should not be major changes from the pre-proposal - review the master spreadsheet, but do not edit it

• If only small changes to the budget, e.g., salary/wage figures, complete the blank budget spreadsheet and send it to Ioana and Tanja
• If there are changes to the efforts, e.g., when a person works on what task etc., contact Ioana and Tanja

• Project Execution Plan - need to update the budget and possibly other information
• Narrative - need to make consistent with pre-proposal and cross check with any other comments received last time.

DISCUSSION PWO CRYSTALS AND TESTING

• The CD3A scope includes 1069 crystals

• The first articles (110 crystals) have been shipped and are en route to JLab - acceptance tests will be done there
• After acceptance of the first articles regular monthly shipments of at least 70 crystals/month will commence

• Discussion about crystal storage

• NPS cleanroom capacity: currently can store an additional ~600 crystals
• There may be additional storage space at JLab - need to investigate

• Crystal test benches

• UKY and JMU have been setting up test benches for crystal tests. Both have one PWO crystal that can be used for cross checking.
• Expect to be ready to exercise crystal test procedures soon

• Actions

• Investigate crystal storage space at JLab
• Send one crystal each to Larry and Justin for SiPM board tests

BEAM TESTS AT DESY

• March beam test will commence on 3/24. Goals are:

• Run Crytur system
• Measure energy resolution with MIT 5x5 prototype with SiPM readout
• Direct comparison of two channels with SiPM
• Possibly insert a glass block in the central position

• Analysis of the data from February

• HCROC data are being analyzed at Orsay including pedestal and width fluctuations and noisy channels. Expect initial results to the expert group in ~3 weeks
• discrete data are being analyzed at OU. Planning to present status early next week and implement any feedback.

FINAL DESIGN REVIEW PLANNING

• Presently planned for May 2025

• The main item to be reviewed is the mechanical design - 90% level

• Requires information from the beam test on the readout chains. If decision on the readout chain is made in ~2 weeks then still requires implementation into the mechanical model. May 2025 may still be possible, but it is very tight.

NEXT MEETING: FRIDAY 4 APRIL AT 8:00AM ET