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2023/02/09 (Thursday)

Previous Day

  • Lab in-personnel: Himangshu, Ping
Status Run 77 in progress. Warmed up yesterday, first 10K pumpout. MC(H35) temp settled to 5.47 K overnight.
Setup To Be Cable 2/1/3 → diverter/nothing/nothing → DCRC50(3)/DCRC55(1)/DCRCX(4)
1455 Started filling LN2 from the dewar. Checked with Mike to get trained for LN2 refill and found that the dewar still has 20L left
1500 Stopped filling LN2
1518 Plugged in DCRC50(3) to diverter board to Cable 2.
1538 Tried changing the QETbias, Squid parameters but the DCRC is not responding
1539 Plugged in DCRC55(1) to nothing to Cable 1. All channels showing noise, PD shows some pulses as well!.
1618 Tried tuning the SQUIDS on DCRC1, SquidA donot show modulation. Other SQUIDs are fine and tuned.
1621 Plugged in DCRCX(4) to nothing to Cable 3. None of the channels are responding.
1736 DCRC4 showing traces on PA, PB and PC. PD shows traces sometimes and then goes away

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