UMN CDMS Wiki archive
start › cdms › k100 › group_meetings › 20211028
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
  • Priority Updates
  • Lab Update
      • Tower assembled and installed in fridge
      • SQUET selection:
        • for HV we've been using SQUET channels modified to reduce the shunt resistances. We have a set that works for 1-sided readout, but there are bad channels on those SQUETs
        • We'd like to try reading out all 12 channels on this detector - so we'd want three SQUETs with all four channels working, and presumably reduced shunts
        • We have three SQUETs with all good channels that we use for iZIPs - with no modifications
        • Probably reduced shunts would be good for iZIP too. The original 20 mΩ was meant for mZIPs, with 10× higher normal resistances than any phonon channel we have now
        • Starting wirebonding now, intend to have 12 good channels with reduced shunts.
      • To do:
        • Assemble and test HV board
        • Wire warm cable for Goldman thermometer
        • Wire diverter board for Goldman thermometer. Can we use the source mover board?
        • Check CDMSbats channel maps
    • 2-Sided HV readout - tests from 2018
    • Run 74 analysis in progress
  • General Updates
    • Himangshu Update 4
    • Jack
    • Derek
    • Zach
    • Michael
    • Scott
    • Giulia
    • Pramod
  • Fun Update
    • October CDMS Event - Pumpkin Carving!
      • 10/29 (Fri) 4PM
      • Bring your knives tomorrow!