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Teleconference link: https://umn.zoom.us/my/fritts
Domestic: 1-646-558-8656 (US toll)
Domestic: 1-408-638-0968 (US toll)
Access code: 908-227-5310
  • Lab Update
    • Run76 in progress
      • Swapped two DCRCs - now all 12 channels are working, good pulses
      • Tested 2D source mover, two zero moves: i.e., move the source to the center.
        • first move should have properly centered the source, which would have been slightly offset during installation
        • second move shouldn't actually move the source at all
        • both moves caused heating. MC went to 0.5 K. Goldman thermometer went above 2 K - not positive that's accurate. Maybe 3 hours to cool close to previous base
      • Mini-IbIs on all channels to set dP/dI. Can compare to IbIs-vs-temperature data from Run75 and use this to estimate tower temperature:
        • best match is 46 mK as per Goldman thermometer on tower in Run 75. Currently Goldman reads ~75 mK, this is clearer evidence it's wrong
        • 46 mK is surprising, seems like the tower is probably cooler than that because the MC is much cooler now than in Run75
        • Correlation of QET bias settings across channels between Run75 and Run76 is only mediocre
      • Took some 2-sided 0-Volt data. Modified the processing code and managed to process the data. Will look today at Am-241 spectrum.
      • Working on recreating the setup to feed trigger signal from NaI setup to a DCRC
  • Priority Updates
  • Fun Update