2017/03/21 (Tuesday)
| 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 | |
| 0904 | Tower/MC/Coldplate = 33.5/30.7/191 mK, Still = 1.2 K / 0.110 mbar, G1/G2 = 256/224 mbar, 1K Pot = 1.676 K / 24 mbar, Main bath = 71.7%. Boil off rate: faster than slow mode (predicted level: 76.0%). |
| 0907 | Fill LN2 cold trap bath. |
| 1058 | Set HV = 60 V |
| 1100 | Set QET biases to 0 uA |
| Channel | Driver Offset |
|---|---|
| DCRC1 PA | -1 |
| DCRC1 PB | -0 |
| DCRC1 PC | -0 |
| DCRC2 PC | 1 |
| DCRC2 PD | -0.4 |
| 1104 | Start 30 min 60V HV superconducting long trace random data set with 26.2144ms trace length, Frontend Gain = (20/20/20)/(-/4/5), OG = 4/2, QET biases=(0/0/0)/(-,0,0), 20Hz in-run randoms with no starting/ending randoms. |
|---|---|
| 1107 | HV = 60V, V_leak = 4.4 mV, V_crystal = 58.1 V |
| 1150 | Ground and flash detector |
| 1337 | Set HV = 90V |
| Channel | Driver Offset |
|---|---|
| DCRC1 PA | -1 |
| DCRC1 PB | -0 |
| DCRC1 PC | -0 |
| DCRC2 PC | 1.15 |
| DCRC2 PD | -0.15 |
| 1342 | Start 30 min 90V HV superconducting long trace random data set with 26.2144ms trace length, Frontend Gain = (20/20/20)/(-/4/5), OG = 4/2, QET biases=(0/0/0)/(-,0,0), 20Hz in-run randoms with no starting/ending randoms. |
|---|---|
| 1343 | HV = 90V, V_leak = 9.6 mV, V_crystal = 85.8 V |
| 1419 | Ground and flash |
|---|---|
| 1720 | Tweak 1K Pot needle valve open a few more degrees. Pressure peaks at 36 mbar then falls back to 28 mbar, oscillates a little. |
| 1738 | Fill LN2 cold trap bath. |
| 1745 | Set HV to 10.01 V. After about 5 minutes Vtest is down t0 0.6 mV, so Vdetector = 9.75 V |
| 1756 | Start sequence of 14, 1-hour data series of 1-sided 10V HV data with Frontend Gain = (20/20/20)/(-/4/4), OG = 4/2, QET biases = table from Friday, with 1000 beginning randoms, no flashing, and a 15ADC bin threshold trigger on DCRC1 pA |