| | 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 |
| | PuBe source in paraffin barrel behind shield (west side) |
| | Took NaI-triggered data overnight @50V. |
| 0850 | Tower = 32.9 mK, Main bath = 67.7% |
| 0850 | HV = 50.00 V, Vtest = 2.2 mV. Vdetector = 49.0 V |
| 0855 | Fill LN2 cold trap bath. |
| 0952 | Start 1 1-hour data series of 1-sided 50V HV coincidence data with Frontend Gain = (15/15/4)/(3/5/2), OG = 4/2, QET biases = table from Apr 28, with 1000 beginning randoms, no flashing, and a 22ADC bin threshold trigger on DCRC2 pD (Side1 pF). Running OR trigger of NaI detectors with PuBe source on west side of shield. NaI detector C has 311 mV threshold and detector B has 288 mV threshold |
| 1055 | Dial HV down to 0V |
| 1100 | Begin 30 minute bake |
| 1235 | Dial HV up to 65V. After 10 minutes dial down to 50.00V. |
| 1300 | HV = 50.00 V, Vtest = 2.5 mV and steady → Vdetector = 48.9 V |
| 1305 | Start 1 1-hour data series of 1-sided 50V HV coincidence data with Frontend Gain = (15/15/4)/(4/3/2), OG = 4/2, QET biases = table from Apr 28, with 1000 beginning randoms, no flashing, and a 22ADC bin threshold trigger on DCRC2 pD (Side1 pF). Running OR trigger of NaI detectors with PuBe source on west side of shield. NaI detector C has 311 mV threshold and detector B has 288 mV threshold |
| 1418 | Start 19 1-hour data series of 1-sided 50V HV coincidence data with Frontend Gain = (15/15/4)/(4/3/2), OG = 4/2, QET biases = table from Apr 28, with 1000 beginning randoms, no flashing, and a 1500ADC bin threshold trigger on DCRC4 pA (TTL signal). Running OR trigger of NaI detectors with PuBe source on west side of shield. NaI detector C has 311 mV threshold and detector B has 288 mV threshold |
| 1655 | Fill LN2 cold trap bath. |