2017/11/24 (Friday)
| Setup: DIB1/3/4 → SL 27/19/20 → 3.2 MHz filters → cables 2,1,3 → HV board inputs 1,3,2 → HV board outputs 1,2 → DCRC55(1)/50(3). Also DCRC4 is powered and hooked up to control the HV setting. | |
| 0700 | Checking remotely, Tower seems to be at 117 mK, but it's possible that the thermometer switchbox is on the wrong thermometer. I'll take a look at the phonon channels, if the tower is really that high the baselines should be way off. |
| 0714 | Start test series of data with standard settings |
| 0725 | Baselines are a little elevated since I last looked yesterday but not much and there are still pulses. Tc's are around 80 mK for most channels so it's nearly impossible that the tower is really at 117 mK. |
| 0739 | Begin IbIs data sequence on DCRC1pB with HV=0V from 600 to 300 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC1pB.msl) |
| Sequence continued to completion Moved the data to /byseries/07171124_2500 |
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| 1225 | Restart MIDAS and the DAQ programs, hoping to avoid the next sequence freezing up. |
| 1235 | Begin IbIs data sequence on DCRC1pC with HV=0V from 650 to 400 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC1pC.msl) |
| Sequence continued to completion. Moved the data to /byseries/07171124_2500 |
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| 1328 | Tower/MC/Coldplate = 25.2/26.2/149 mK, Still = 1.2 K / 0.110 mbar, G1/G2 = 205/210 mbar, 1K Pot = 1.67 K / 45 mbar, MB = 32.1% |
| Thermometer was reading the cold plate temperature - switched it back to tower, everything looks ok. | |
| 1330 | Fill LN2 cold trap full. |
| 1335 | Start LHe transfer (MB = 31.9%) |
| 1406 | Replace He4 cylinder (it ran empty). Need to order a new one. Continue with LHe transfer. |
| 1455 | Reboot the DAQ computer, restart vnc session - restarted SQUID tuner. |
| 1515 | End LHe transfer (MB = 91.9%) |
| 1526 | DCRC1: PA was fine. PB was railed, brought it back but it's not very stable. PC was railed but was brought back easily. |
| 1527 | DCRC3: PB was fine. PC was railed, brought it back. PD was fine. |
| As of now, all active DCRC1&3 channels should be unrailed and within 0.8-0.9 V on the pulse viewer. | |
| 1605 | Begin IbIs data sequence on DCRC3pB with HV=0V from 750 to 300 uA in -1.0 uA steps, 3 seconds of data per step. (IbIsDCRC3pB.msl) |
| Sequence got stuck at 419 uA. Should've restarted MIDAS. |