| | Current setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50. |
| | Overnight: Taking background data. DAQ locked up at 17:52 last night. Tower temp looks fine. |
| 0940 | Fill LN2 cold trap full. |
| 1100 | Port 1 still connected on DIB3 (DCRC50). This would explain the error we saw, though why the port didn't disconnect properly is a mystery, granted a mystery we run into semi-frequently. Since we got the error, we've been charge biased, so set Qbias to zero and flash for 30s. |
| 1155 | Start 1 cycle of 30min runs of background data at +/-1V, -/+1V, +/-3V, -/+3V, FG=5/2/5, OG=3, 1000 initial randoms, 2000 events/file, 30s flash and 25min cooldown after. Using Wednesday's thresholds. Want to take 2 cycles total, but also want to take 2 cycles of Ba data, which will be overnight, so will take remaining 1 cycle of background data tomorrow morning. |
| 1550 | Start LHe transfer (36.2%). |
| 1622 | Cease LHe transfer (90.8%). |
| 1637 | Fill LN2 cold trap full. |
| 1720 | Place Ba source at back of fridge at topmost part of shield. Set phonon thresholds to Ba data levels from 2015/10/28: |