2023/02/20 (Monday)
* Lab in-personnel:
| Begin another cooldown | |
| Status | Run 77 in progress. |
| Setup To Be | Cable 2/1/3 → diverter/nothing/nothing → DCRC50(3)/DCRC55(1)/DCRCX(4) |
| 1636 | Started Ln2 Cold trap refill |
| 1638 | Tower(RoX)/Tower(U28)/MC(H35)/Coldplate = -/47.4/31.1/152 mK, Still(P1) = 1.14 K / 0.08 mbar / 0 mW, G1/G2 = 145/153 mbar, 1K Pot(P2) = 30° / 1.624 K / 20 mbar, MB = 55% |
| 1641 | Turned off DCRC programs. Unplugged DCRC4. No changed in Tower thermometer reading. |
| 1644 | Unplugged DCRC1 and DCRC3. The tower temperature dropped a little bit to 43.5 mK. |
| 1648 | Plug in DCRC1. No change in tower temperature. Plug in DCRC3. No noticeable change. Plug back DCRC4. |
| 1705 | DCRC4 still not responding. Zapping the SQUIDs on this DCRC. |
| Tower temperature went upto to 50.5 mK and cooling back down. Settled at 48.6 mK |