General Meeting Summary 11/8/18

NPS COLLABORATION MEETING: 1 FEB 2019

• Date selected to be after Hall A/C meetings in the same week

• Room: TBD

• Discussion about agenda items

• Discussion blocks to see what we have and what we still need

• Magnet testing
• Frame and infrastructure (cabling, etc)
• Readout - CAEN
• Slow Controls
• Simulation and software
• ComCal/NPS prototype and crystals - lessons learned, Hall C prototype

• Glass scintillators

• Streaming readout (Marco Battaglieri)

• Readiness review preparations

• CPS (~1.5 hrs)

• Physics with NPS - update the one slide-per-experiment

• Action Items:

• Create and circulate draft agenda for discussion (Tanja)
• Draft charge for ERR
• Room booking (Rolf)

MAGNET (Rolf for Bogdan)

• Magnet is assembled, working on peripherals (waterlines)

HV BASES (Julie)

• Assembly and testing is ongoing

FRAME (Carlos and team)

• Cable implementation in frame design ongoing

• Discussion at JLab 13-14 November

• prototype shipped to JLab for demonstration of assembly
• 3D drawings available
• Considering visit to Hall D to see ComCal/NPS prototype (arrange with A. Somov)
• Considering additional discussion about cables with, e.g. Steve, Brad, Jack,..

CRYSTALS AND PROTOTYPE (Vladimir, Tanja, Rolf, ...)

• 5+6+9 crystals from CRYTUR arrived - testing ongoing, results for all expected before end of the month

• Next procurement from CRYTUR ongoing, also rest of PMTs

• Found crystals from HYCAL (made by SICCAS in ~1999)

• quality not great, but seems to have been acceptable for HyCAL - also note that the best crystals out of the full batch at the time might be installed in the HyCAL
• another note: Rainer tested these crystals for Primex at the time

• NPS Prototype

• cabled up on the floor in Hall D, was powered up and majority of channels work (found 3 bad ones out of 140)
• cable weight is an important consideration - for ComCAL needed extra support for doors in back
• Cable routing also important - ComCal routes through back, will Hall D do the same for bigger calorimeters? NPS will send cables through top for easier access to PMTs
• Slow controls for ComCal include: environment (temperature, light sensor, humidity), HV, LED pulser

• humidity to check if condensation on boards when decrease temperature - consider materials to absorb humidity inside calorimeter

• Scaler check for hardware channels
• ComCal not in Hall D production DAQ, so need to take special runs - why does Hall D only have one DAQ?
• Runs taken so far: runs at different voltage with LED to gain check PMTs (already did full gain calibration before)

READOUT (Alex)

• Received additional hardware (VXScrate), working on setup for chain testing

NEXT MEETING: THURSDAY 29 NOVEMBER AT 8:00AM (EST)