2022/11/21 (Monday)
- Lab in-personnel: Zach
| 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 W side of fridge. NaI array trigger window = 4.73 - 5.13 MeV |
| Cooled down to base yesterday after 25th 5K pumpout. Temperature spikes began at 12:50 am this morning. | |
| 1033 | MC/Coldplate = 33.5/150 mK, Still = 1.07 K / 0.075 mbar / 0 mW, G1/G2 = 173/158 mbar, 1K Pot = 60° / 1.59 K / 11.0±1.0 mbar, MB = 68.1% |
| 1034 | Unplug DCRC1 |
| 1036 | It took a worrying amount of time to power on after plugging back in, but DCRC1 is going again |
| 1039 | Fill LN2 cold trap bath |
| 1245 | DAQ working, DCRC3 channels A and D need to be relocked |
| 1258 | Adjust DCRC3 PA offset from 1.126 → 0.36 |
| 1338 | Adjust DCRC3 PD offset from 1.859 → 1.38 |
| 1940 | Fine-tune phonon offsets to get all baselines near -0.800 V |
| 2210 | DCRC1pA baseline = -0.802 |
| 2214 | Start 0 V PuBe data series ## min long, SiHV-triggered with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC1pA threshold 2. Start series with the Start Button |