General EEEMCal Meeting Summary 12/13/24

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PARTICIPANTS: Hamlet, Carlos, Douglas, Tanja, Josh, Justin, Vardan, Nathan, Ethan,

OVERVIEW OF 2025 PROTOTYPE BEAM TEST PLANS

Link to slides

• Three slots at DESY have been scheduled - all for 2 weeks

• 17 February following a maintenance period. Goal: comparison of readout chains with Orsay prototype
• 24 March - no maintenance period - so need to count half a day for setup. Goal: comparison of PMT and SIPM with MIT prototype; CRYTUR prototype
• 9 June - contingency

• At JLab EEEMCAL has an opportunity for a parasitic test in Hall D in June/July 2025

• For the DESY test please send names of participants to Douglas (hasell@mit.edu) as soon as possible

• Action items:

• explore if JLab EEEMCAL test could be sooner in the year

PREPARATIONS FOR 2025 PROTOTYPE BEAM TESTS

• Orsay and MIT prototypes are ready

• For the discrete readout boards

• Larry has assembled three full setups. He will send one with a 2x2 6015 SiPM board, adapter connectors, prototype pre-amp board, and power cable to Gerard for testing at IU. The signal output is an MCX connector.
• Gerard will report on the tests early next week.
• Gerard is planning to submit a request for fabrication of the boards to JLab by 19 December

• For the JLab prototype tests need to find out how to integrate the Orsay prototype with the Hall D DAQ

• Action item: connect with Vladimir and Sasha S. about that

• Action items:

• Submit request for discrete readout board fabrication to JLab (Gerard/Larry)
• Schedule a meeting with Vladimir/Sasha

PRE-TDR

• The EEEMCAL part was updated and submitted on 12/6. A commenting period is now open

• Further discussion including possibly updated timeline is planned for the ePIC collaboration meeting in January 2025

MECHANICAL

• There have been some discussions about the outer shape of the EEEMCAL. Julien can update on that later.

NEXT MEETING: FRIDAY 10 JANUARY 2025 AT 8:00AM ET