2016/02/22 (Monday)
| Setup: iZIP mode, DIB1/2/3 → cables → 3.2 MHz filters → DCRC55/33/50 | |
| Taking Y-Be data overnight. The dataset was begun on Saturday but not recorded in the run diary. It was taken with short trace lengths and set to 41 series. The last series was still going when I removed the source. Last flash at ~7:30. | |
| 0825 | Tower/MC(H35)/MC sensor/Cold Plate = 32.2/28.8/42/153 mK, Still = 1.05 K / 0.080 mbar, G1/G2 = 120/105 mbar, 1K Pot = 1.49 K / 1.8 mbar, Main bath = 44.8% |
| 0830 | Remove Y source from fridge. |
| 0835 | Tweak 1K Pot needle valve open additional 5 degrees. |
| 0840 | Fill LN2 cold trap Dewar. |
| 1033 | Start 30min of Ba series at -4/+4 V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, with 30s flash and 25 minute cooldown beforehand. Trigger on DIB1 phA with threshold of 20ADC bins, with 150 us pileup cut window. Use shorter trace lengths as on Saturday. |
| 1035 | Place Ba source at back of fridge inside top most part of shield. |
| 1135 | Check phonon traces. All look good. Change phonon and charge trace lengths back to standard trace lengths (16384 MIDASbins on phonon traces and 8192 MIDASbins on charge traces). |
| 1138 | Start 30min of Ba series at -4/+4 V with FG=5/2/5, OG=3, with 1000 initial randoms, 1000 ending randoms, with 30s flash and 25 minute cooldown beforehand. Trigger on DIB1 phA with threshold of 20ADC bins, with 150 us pileup cut window. Use standard trace lengths. |
| 1330 | Check phonon traces. All look good. |
| 1400 | Perform mini IbIs on DIBs 1,2,3 in standard setup. After that, unpower DCRC50, remove DSUB pi-filter from DIB3, attach pi-filter switchboard with all filters turned on, and repower DCRC50. Zap SQUIDs. |
| 1500 | Perform mini IbIs on DIBs 1,2,3 with pi-filter switchboard with all switches turned ON attached to DIB3. After that, unpower DCRC50, remove pi-filter switchboard from DIB3, turn off all filter switches, reattach pi-filter switchboard to DCRC50, and repower DCRC50. Zap SQUIDs. |
| 1600 | Perform mini IbIs on DIBs 1,2,3 with pi-filter switchboard with all switches turned OFF attached to DIB3. |
| 1635 | Commence LHe transfer (32.7%). |
| 1730 | He gas cylinder ran empty, so swap it out to finish the transfer (and order a new one). |
| 1745 | Fill LN2 cold trap full. |
| 1750 | P2 has dropped to 1.5mbar, so open up needle valve even more. |
| 1755 | Cease LHe transfer (91.8%). P2 has settled at ~30mbar, though it will settle further over time. 1K Pot temperature is 1.739K, tower temperature is 31.5mK. |
| 1810 | Release pressure from Main Bath. |
| 1823 | Start 13 series of 30min Y-Be series at -4/+4 V 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 20ADC bins and DIB1 qInner&qOuter each with threshold 210 ADC bins, with 150 us pileup cut window. Use standard trace lengths. |
| 1830 | Place Strong 88-Y source in Be disc source holder for overnight data. |
Spreadsheet of Mini-IbIs data