2016/11/22 (Tuesday)
| 0902 | Setup: DIB1/3/4 → 3.2 MHz filters → cables1/2/3 → DCRC55(1)/33(2)/50(3) |
|---|---|
| 0902 | Tower/MC/Coldplate = 33.2/30.0/149 mK, Still = 1.3 K / 110 μbar, G1/G2 = 188.4/169.8 mbar, 1K Pot = 1.71 K / 28 mbar. MB = 28.9%. Boiloff rate: ? |
| 0906 | checked data from last night, possible timing link trouble, because I saw that pulses on the non-triggering DCRCs (1,2) were rarely showing up at trigger-time |
| 0914 | timing link is probably bad from last night, so the data is no good |
| 0914 | Fill LN2 cold trap full. |
| 0937 | Start sequence of 4 one-hour data series of 0V data with Frontend Gain = 5/2/5, OG = 8/3/8, with 1000 beginning randoms (because of increased pileup from higher source rate), with no flashing in between series, trigger on PhD of DCRC3 (PFS1) at 70 samples, this series set will be running throughout the PuBe activation |
| 1009 | PuBe source inserted, data series 07161122_0937 has bg data up till dump 28 (around 10:09) then has PuBe source in while data taking |
| 1025 | end 4 one-hour data sequence prematurely triggering with the PuBe source in completely disrupted the DAQ dump files were being written with zero events in them, try this again but with only random triggering at 20Hz throughout the run |
| 1025 | Start sequence of 3 one-hour data series of 0V data with Frontend Gain = 5/2/5, OG = 8/3/8, with 1000 beginning randoms (because of increased pileup from higher source rate), with no flashing in between series, random trigger with 20Hz throughout, this series set will be running throughout the PuBe activation |
| 1030 | nevermind, this won't work because the channels have all railed |
| 1228 | steel drum for PuBe source has 16“-17” diameter |
| 1300 | activation PuBe source removed by radiation services |
| 1315 | measuring DCRC1 PhA at 50 ms trace length get 102 Hz on average from 9 50ms snapshot measurements |
| 1325 | Start sequence of 4 one-hour data series of 0V data with Frontend Gain = 5/2/5, OG = 8/3/8, with 1000 beginning randoms, with no flashing in between series, trigger on DCRC3 PhD which is PFS1 at 70 sample threshold |
| 1640 | Commence LHe transfer (16.3%) (shakes fist at praxair). |
| 1718 | End LHe transfer (95.8%). |
| 1728 | Let pressure out of main bath. |
| 1729 | Start sequence of 15 one-hour data series of 0V data with Frontend Gain = 5/2/5, OG = 8/3/8, with 1000 beginning randoms, with no flashing in between series, trigger on DCRC3 PhD which is PFS1 at 70 sample threshold |
| 1816 | Let pressure out of main bath. |
| 1832 | Fill LN2 cold trap full. |