2022/08/02 (Tuesday)
- Lab in-personnel: Giulia
| Status | Run 76 in progress |
|---|---|
| Setup | Cables 2/3/1 → diverter/nothing/nothing → Side2-readout HV CONN 1/3/2 → HV 1(L)/2(R) → DCRC50(3)/DCRC55(1), DCRC33(2)→HV control, NaI trigger signal → DCRCX(4) Lead/poly shield fully assembled. Boron-filled socks covering NaI detectors. PuBe behind lead wall on West side of lead/poly shield. |
| Restarted circulation two days ago after a fridge failure (impedance blockage) a week ago. | |
| 1100 | MC/Coldplate = 28.9/154 mK, Still = 1.17 K / 0.130 mbar / 0 mW, G1/G2 = 140/142 mbar, 1K Pot = 50° / 1.69 K / 42±2 mbar, MB = 61.2% |
| 1120 | Fill LN2 cold trap bath |
| MC temperature is showing random temperature spikes several minutes apart. Currently the minimum is around 29.6 mK. Most peaks are below 35 mK, though one at 18:45 went to 55 mK and one at 22:45 went to 80 mK. |