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Agenda

  • Operations
    • Run 62 (HV#4, Si) status:
    • Ge iZIP “pathfinder” - have proposed a bonding scheme to connect all 12 phonon channels for readout.
      • Detector has been determined to fit (tightly) in housing, may bump DIBs when cold
      • Fab still waiting for Tc verification. Samples indicate Tc lower than 45 mK target. Mark P is apparently making new samples to test. Tc may depend on thickness, he's adjusting that.
      • Paul estimates an ETA of June 10, one month from now
    • Future 6“ run (1”-thick 5Q device). Detector now at UMN, needs to be wirebonded
    • Continued K100 support through both Project and Operations - assume no SNOLAB upgrade
      • exploring ideas for improvements without upgrade: float DCRCs for symmetric biasing Proposed Scheme, decrease Rshunt in SQUETs
  • Processing and Analysis
  • Physics
    • low-energy Comptons and n,gamma calibrations with external triggering
  • Old/continuing items:
    • Lab infrastructure
    • DAQ and data pipe
      • DAQ upgrade - discussed with Bruno about IbIs tool development
      • Data storage and backup:
        • Need to copy all Run 60 and some Run 61 data to SLAC
      • Autoprocessing and data organization development:
        • currently autoprocessing suspended, no “official” processing for Runs 60, 61, 62
        • clean up database - some info missing. Consider adding additional info
    • Possible plan to modify DCRCs (resistor swap) so we can increase front-end gain, improve IbIs (suggestion from Bruno)
    • IF (not likely) new DCRC RevC.2 arriving from Bruce in Denver then
      • missing resistors on 3 QET channels, we've ordered some