General Meeting Summary 8/24/17

MAGNET UPDATES

• Yoke delayed until end of September

• Main coil delayed until end of November

• company miscalculated amount of copper needed and takes a few months to obtain
• in general, company does good work

• Test lab configuration for magnet assembly and testing ongoing

• due to delays of magnet component shipping magnet tests will be delayed past December

CRYSTALS AND PMTS

• Received 100 PMTs from Hamamatsu

• diameter < 19.2 mm according to specifications

• Crystal shipment delayed

• Check with company at beginning of September for expected delivery dates

• Crystal Q&A documentation discussion

• need to make sure that there is unique labeling and data sheet for each crystal
• create an NPS database that includes crystal info, but also info on PMTs, frame etc.
• indicate what tests have been done by Giessen and/or CMS - use this information to determine if crystal good with respect to these two
• Discussion about resource optimization

• split measurements between institutions
• measure only subsets
• external resources to supplement resources at CUA/IPNO - Glasgow may be able to help with some tests

• Discussion about crystal measurement procedures

• make a detailed list of procedures to follow to minimize damage to crystals

FRAME UPDATES

• Designer will be available full time at IPNO in September

• Currently working on curing system optimization and finalization

• Still need some final design optimizations from JLab designer, e.g. interference in detector box

DISCUSSION ABOUT 2017 ACTION ITEM LIST

• Magnet mapping - discussions and write-up of plan ongoing

• plan to map along beam line for 2-3 positions
• primary tools: hall probe and oscilloscope
• may be able to do some tests with yoke and corrector coil before main coil arrives

• Platform - JLab designer

• Readout

• Crystals - large part of planning work completed, some still ongoing, waiting for crystals

• PMT and HV bases - concept finalized, procurement ongoing

DAQ AND READOUT

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