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Teleconference link: https://umn.zoom.us/j/9024497080?omn=98454621599
Meeting ID: 902 449 7080
Domestic: 1-408-638-0968 (US toll)
Access code:
  • Lab Update - Run 81 ending
    • Status : Fridge is warming up. It took way longer than normal to warm the fridge this time.
    • Almost reached the dew point. Will lower the main bath today.
    • Took out needle-valve… ordered new o-rings.
    • Himangshu has been working towards re-routing 1K pot thermometry cables from old IGH to LakeShore bridge.
    • Working towards new DAQ system.
      • Channel mapping is fully worked out.
      • Pin Mapping at the adaptor: link
        • Confirmed by performing continuity test with DMM.
      • We can use HV box, and apply HV to one side of detector.
      • Checking DCRC calibration… whether applied bias value appears on the pins or not…
        • calibration file for SN8 is available.
        • Power-cycling the DCRC seems to reset the ODB parameters.
        • After setting everything to zero:
        • After power-cycling the DCRC
        • Values across RevC Minibob doesn't make sense. QET_A/GND = -1mV, QET_B/GND = 628mV, QET_C/GND = -4 mV, QET_D/GND = 0 mV, No change if we change the valves in ODB.
        • Removed Minibob and tried connecting 2K ohm resistor across QET_A/GND pins on the adaptor, voltage reads = 86 mV (corresponds to 43 uA down the line). No change if we change values in ODB.
    • NaI trigger integration: Anthony says he will also have to update to the new DCRC. Wants us to send other ReE DCRC to Denver to work on firmware development.
  • Priority Updates