| | Setup: DIB1/3/4 → 3.2 MHz filters 3/1/2 → cable 3/1/2 →gender changer 3/1/2 → HVConn 1/3/2 → HV 1/2 → DCRC55/DCRC33 |
| 1215 | Fill LN2 cold trap full |
| 1220 | Tower/MC/Coldplate = 32.7/30.4/193 mK, Still = 1.30 K / 0.100 mbar, G1/G2 = 211/198 mbar, 1K Pot = 1.669 K / 20.0 mbar. Main Bath = 29.2% (predicted level: 33.1%) |
| 1233 | Start Lhe transfer (MB = 28.9%) |
| 1250 | HV = 22.75 V, Vtest = 0.95 mV → Vdetector = 22.37 V |
| | Leakage is low again, only 0.04 nS |
| 1315 | End Lhe transfer (MB = 92.7%) |
| 1325 | Finish IbIs on DCRC2pD/Side2pF. Looks very close to previous IbIs. |
| 1325 | Dial HV down to zero and short leads. |
| 1330 | Start 30 minute bake with DCRCs 1&2 |
| 1435 | Dial HV up to 120 V |
| 1445 | Dial HV down to 106 V, targeting Vdetector of 100 V |
| 1500 | Check the falloff currents on all channels: 123.4/134/122.4/-112.6/-146.5/-143.8. Compare with last IbIs results: 124/134.9/122.7/-112.8/-146.45/-143.4. Most are a bit lower now indicating some increased parasitic power. Can use this to adjust the Ib*pf values. |
| 1515 | HV = 103.9 V, Vtest = 9.79 mV → Vdetector = 99.98 V (leakage 0.1 nS) |
| 1516 | Start 18 1-hour data series (start #6726) of 1-sided 100V data with Frontend Gain = (15/15/5)/(5/4/4), OG = 4/2, QET biases set with the Ib*pf=30 values in table from May 24, with 1000 beginning randoms, no flashing, and a 24 ADC bin threshold trigger on DCRC1 pA (Side1 pE). |
| 1530 | HV = 103.9 V, Vtest = 9.81 mV → Vdetector = 99.98 V. Seems to be oscillating a bit. |
| 1530 | Abort series because there's no data after the second dump, DCRC1pA must have railed |
| 1535 | Relock DCRC1pA and DCRC2pB and DCRC2pC |
| 1539 | Start 18 1-hour data series (start #6726) of 1-sided 100V data with Frontend Gain = (15/15/5)/(5/4/4), OG = 4/2, QET biases set with the Ib*pf=30 values in table from May 24, with 1000 beginning randoms, no flashing, and a 24 ADC bin threshold trigger on DCRC1 pA (Side1 pE). |
| 1543 | HV = 103.9 V, Vtest = 10.14 mV → Vdetector = 99.84 V. |