2016/02/26 (Friday)
| Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50 | |
| Activating detector with Cf source overnight | |
| 0855 | Tower/MC(H35)/MC sensor/Cold Plate = 30.9/26.7/41/156 mK, Still = 1.28 K / 0.085 mbar, G1/G2 = 125/110 mbar, 1K Pot = 1.52 K / 2.2 mbar, Main bath = 41.4% |
| 0900 | Remove Cf source from fridge. |
| 0905 | Tweak 1K Pot needle valve open additional 5 degrees. |
| 0910 | Fill LN2 cold trap Dewar |
| 1325 | Unpower DCRC55 (DIB1), switch all filters on pi-filter switchboard off, repower DCRC55, zap SQUIDs. |
| 1355 | Perform mini IbIs on DIB1 with pi-filter switchboard attached and NO lines filtered. Unpower DCRC50. |
| 1515 | Commence LHe transfer (30.7%). |
| 1538 | Reattach DSUB pi-filter to DCRC55 so we're back to the standard setup. Repower DCRC55. Zap SQUIDs. |
| 1550 | Cease LHe transfer (91.0%). |
| 1600 | Release pressure from Main Bath. Notice that the He recovery meter does run backwards, but closing the He recovery valve doesn't allow the pressure to be released like we expect. So continue with the same procedure as before. |
| 1605 | Seeing high-frequency noise bursts on DIB3 pC. Unplug DCRC50, and let it sit it out. |
| 1705 | Repower DCRC50, zap SQUIDs. Check phonon pulses, and everything looks good except for a few railed channels. The voodoo works yet again. Adjust Driver Offset, and it's all good. |
| 1725 | Fill LN2 cold trap full. |
| 1811 | Anthony started 21 30min bg series at -4/+4 V with standard trace lengths with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, with 30s flash and 25 minute cooldown in between series. Trigger on DIB1 phA with threshold of 30ADC bins, with 150 us pileup cut window. |
Spreadsheet of Mini-IbIs data