2022/10/16 (Sunday)
- 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 source behind lead wall on West side of lead/poly shield. |
| NaI scan running overnight | |
| Cooled to base yesterday after fourteenth 5K pumpout. | |
| Temperature spikes began at 8:55 am | |
| 1615 | MC/Coldplate =27.8/144 mK, Still = 1.09 K / 0.110 mbar / 0 mW, G1/G2 = 121/115 mbar, 1K Pot = 60° / 1.57 K / 12±1 mbar, MB = 63.3% |
| 1620 | Fill LN2 cold trap bath |
| 1620 | Plugged DCRCs in. |
| 1820 | Turned on the DAQ programs and checked the phonon channels. DCRC3 channels look ok but DCRC1 channels are all railed low. Tried zapping a couple of times but they are still railed. Need to try powercycling the DCRC. |