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2021/02/20 (Saturday)

Previous Day

  • Lab in-person: Matt
  • Virtual partner: Zach
Status Run 74 in progress.
Setup: DIB1/2+acc → SL 41/43 → 3.2 MHz filters → cables 2/3 → nothing/motor_board+HV_board → DCRC50(3)/55(1). No lead/poly shield.
1500 Matt enters lab
1500 Tower/MC/Coldplate = 121/31.2/184 mK, Still = 1.43 K / 0.130 mbar / 0 mW, G1/G2= 78/74 mbar, 1K Pot = 1.72 K / 80±10 mbar.
1505 MB = 56.7%
1510 Fill LN2 cold trap bath
1515 Take a look at the charge channels. The traces in DCRC1 seem to have wandering baselines - this was seen in the data yesterday too. Should try processing that data to quantify this. Tried applying 5V to all channels - saw occasional pulses in DCRC3 channels, not in DCRC1 channels.
1520 Matt exits lab

Next Day