| Status | Run 74 in progress. First cooldown after IVC rebuild. |
| | Tower thermometer is reading high, probably this is a thermometer problem and the actual temperature is much lower. High noise in some of the charge channels. |
| | Setup: DIB1/2+acc → SL 41/43 → 3.2 MHz filters → cables 2/3 → nothing/Source_mover_board+HV_diverter_board → DCRC50(3)/55(1). Kepco 40V supplye → HV BNC. No lead/poly shield. (actually currently DCRC55(1) is disconnected. DIB2+acc→SL43→filter→cable3→Source_mover_board) |
| 1300 | Tower/MC/Coldplate = 82.8/31.8/177 mK, Still = 1.37 K / 0.080 mbar / 0 mW, G1/G2= 202/189 mbar, 1K Pot = 1.64 K / 24±2 mbar. |
| | Omni logger is broken after the weekly computer restart so I read the temps from the lakeshore. |
| 1322 | Begin LHe transfer @ MB = 16.9% |
| 1345 | Filled LN2 cold trap dewar. |
| 1355 | Ended LHe transfer @ MB = 87.6% |
| | Read temps again now that the omni logger is working (after computer restart) |
| 1400 | Tower/MC/Coldplate = 105.5/33.9/190 mK, Still = 1.36 K / 0.080 mbar / 0 mW, G1/G2= 202/191 mbar, 1K Pot = 1.62 K / 24±2 mbar. |
| 1420 | Zach leaves lab. |