2022/06/17 (Friday)
- Lab in-personnel: Matt, 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. |
| 1110 | MC/Coldplate = 29.1/152 mK, Still = 1.07 K / 0.100 mbar / 0 mW, G1/G2 = 115/109 mbar, 1K Pot = 45° / 1.55 K / 8.0±0.5 mbar, MB = 41.5% |
| 1119 | Fill LN2 cold trap bath. |
| 1155 | Set NaI trigger for a muon coincidence test. Trigger only on the bottom row of NaI detectors, #21,22,23, with threshold just below saturation (which includes all through-going muons). Use ./setthresh.exe -t16000 -T20000 -DMuon -v3 |
| 1205 | Check phonon channels, relock some of them. |
| 1209 | Start 0 V data series 55 min long, with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC3pD threshold 10. Start series with the Start Button. |
| Now let's try triggering on the NaI array | |
| 1305 | Start 0 V data series 81 min long, with 1000 initial randoms, 5 Hz in-run randoms, trigger on DCRC4pA threshold 20. Start series with the Start Button. |
| 1541 | Begin LHe transfer @ MB = 35.2% |
| 1625 | End LHe transfer @ MB = 95.6% |