General Meeting Summary 12/16/21

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PARTICIPANTS: Bogdan, Carlos, Steven L., Vladimir, Fernando, Paulo, Hamlet, Brad, Vardan, Tanja, Hakob, Tristan, Marie, Rolf, Alexandre


PMT HV DIVIDER UPDATES

  • Evaluation of noise level for new divider without shielding and with shielded box
  • HV=605V @ 405uA, amplitude 10% of max
  • noise unshielded: <110mVp-p (peak to peak)
  • noise shielded: <5mVp-p (peak to peak)


  • Tests with and without extra GND to clean GND
  • Note: ADC 12bit/1V scale --> noise normal operations is ~1mV-2mV. Then for 5 mV peak to peak the RMS is ~< 2mV within the ADC noise
  • For experiment have the threshold at ~30 MeV - 1% of 1V signal is 100mV, noise level seems acceptable
  • also not triggering on pulse but need to collect amplitude
  • Procurements have been submitted - expect dividers to be ready late March/early April


NPS ASSEMBLY

  • Component testing space is available (EEL 126 and NPS Cleanroom)
  • check with Vladimir/Brad on details of availability
  • Final NPS assembly space is scheduled to be available on 4/28, but delays may be expected - a status update will be requested in February 2022
  • may assume that part of the space will be available by mid-May for stacking blocks etc., even if no DAQ yet
  • Travel plans for NPS assembly earliest in May 2022 - please note any feedback received from the February 2022 update
  • Storage space in EEL126/NPS Cleanroom
  • Shelves for crystals are being ordered
  • Vladimir will follow up with Brad on getting a cabinet for storing the preshaped reflector foils
  • Action items:
  • Redo NPS assembly plan taking into account space availability
  • Check with Facilities on progress with NPS assembly space
  • Cabinet for pre-shaped foils in EEL 126
  • Preshaped foils - follow up with Charles on those made at ODU in January


NEXT MEETING: THURSDAY 13 JANUARY AT 9AM ET


NPS PLANNING MEETING: THURSDAY 17 FEBRUARY AT 9AM ET (~3-4 hours)