General Meeting Summary 11/8/18
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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 6 DECEMBER AT 8:00AM (EST)