| Status | Run 75 in progress |
| Setup | Tower Faces 5/3/2 → Cables 2/1/3 → nothing/diverter_board/nothing → DCRC55(1)/DCRC50(3)/DCRCx(4) |
| 1110 | Goldman/Tower/MC/Coldplate = 57.7/137/37.7/224 mK, Still = 1.74 K / 0.140 mbar / 0 mW, G1/G2= 147/157 mbar, 1K Pot = 1.64 K / 24±2 mbar. MB = 23.4% |
| | Coldplate and Still thermometers reading anomalously high, as they sometimes do (always both at the same time) |
| 1130 | Fill LN2 cold trap bath |
| 1455 | See pulses in DCRC3pA after adjusting QET bias to 150 uA. Good - that's one of the 2 that wasn't working yesterday. |
| 1515 | Tune SQUID on DCRC3pA. We are not using the controls on the SQUID-tuning GUI - instead we are doing all the adjustments on the MIDAS browser pages (ODB and DCRC Control). |
| 1532 | Tune SQUID on DCRC3pB. |
| 1540 | Tune SQUID on DCRC3pC. |
| 1555 | Tune SQUID on DCRC3pD. |
| 1605 | Tune SQUID on DCRC4pA. |
| 1610 | Tune SQUID on DCRC4pB. |
| 1615 | Tune SQUID on DCRC4pC. |
| 1625 | Tune SQUID on DCRC4pD. |
| | So - all SQUIDs tuned except DCRC1pA - it looks like we can't read the preamp signal on that one. All channels have pulses except DCRC3pD (Side1pF) which is unresponsive to changes in QET bias, suggesting that the TES is an open circuit. |
| 1631 | Begin LHe transfer @ MB = 14.6% |
| 1724 | End LHe transfer @ MB = 92.5% |