General EEEMCal Meeting Summary 5/3/24

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PARTICIPANTS: Ioana, Richard, Rosi, Miroslav, Tanja, Casey, Douglas, Sasha, Bineta, Carlos, Julie, Justin, Dmitry, Crytur-USA,

PLANNING TOWARDS SIPM SELECTION

• Plan to irradiation test all SiPMs at UCR - all models except for 6010 (Hamamatsu confirmed that there is no difference between 3010 and 6010)

• Justin and Gerard plan to be present at the test
• Developed a plan for the irradiation of the SiPMs

• Expect to be able to make a decision on which SiPM model after the irradiation test, but it will require additional studies as well

• Criteria towards making the decision on the SiPM model

• how much dark current
• geometry
• pixel size
• lowest possible signal
• linearity over dynamic range

• Plan is to start setting up test benches

• Lehigh U. (from scratch), OU (starting from NPS setup), ACU
• ACU has been doing test bench tests (boards and SiPMs)
• goal is to be ready for testing SiPMs for the beam test

• Plan for parallelizing the selection of SiPM for October beam test and final SiPM to make sure that SiPMs are available given the potentially long lead time

• determine the best candidate SiPM based on test bench data available now (time frame ~1 week)
• use this best candidate SiPM and order the needed quantity of that model for the October beam test - estimated cost for SiPMs for the October beam test is ~$20k
• continue test bench studies towards final candidate SiPM over the summer
• decide on final SiPM at the end of the summer

• Action items:

• share the irradiation plan to the group
• develop a procedure for making the decision on the SiPM final candidate
• ask Hamamatsu for current lead time

PLANNING TOWARDS READOUT CHAIN SELECTION

• Details will be discussed in the 9 May meeting

FUTURE PLANNING

• Explore if we can have an update from the engineering team in the EEEMCAL meeting

• Explore options for setting up PDE funds to keep things moving (Sasha)

• Explore with DESY management what is possible in principle at low end, e.g., below 1 GeV (Douglas)

• Explore setting up test benches for crystals

• CUA/JLab has a setup that could be duplicated and used to gain experience
• JMU and UKY need to setup a test bench

NEXT MEETING: FRIDAY 31 MAY AT 8AM ET