| | Setup: DIB 1/3/4 → 3.2 MHz filters 1/2/3 → cable 1/2/3 → gender changer 1/3/4 → DCRC55(1)/33(2)/X(4) |
| 0908 | Tower = 26.0 mK, Still = 0.055 mbar, G1/G2 = 148/133 mbar, 1K Pot = 1.67 K / 24 mbar. MB = 68.4% |
| 0909 | Fill LN2 cold trap full. |
| 0926 | Flash detector |
| 1014 | Tower = 26.7 mK, DCRC1PA rate = 133 Hz |
| 1025 | Retrieve Cf-252 source from 4th floor lab. Leave in transport case for now. |
| 1014 | Tower = 26.1 mK, DCRC1PA rate = 113 Hz |
| 1032 | Place Cf source inside top of Mu metal shield on west side of fridge |
| 1037 | DCRC1PA rate = 120 Hz |
| 1042 | Start flash and take sequence of 3 60-minute data series of Cf data with Frontend Gain = (15/2)/(4/4)/(5/5/5/5), OG = 4/2/4, QET biases = 2V setting from 2017/07/25, with 1000 beginning randoms, 30 sec flash with 30 min wait, and a 15ADC bin threshold trigger on DCRC4pB (Side2pF). Charge biases are DCRC1/2 (Side2/1) = 2/-2 V. |
| 1113 | Manually terminate sequence. Flash and take tried to turn on DCRC3 LEDs, and the sequence froze at that line, so it just baked for the last 30 min… I'll just write a sequence by hand. |
| 1214 | Tower = 26.4 mK |
| 1217 | Start takeAndFlash sequence of 3 60-minute data series of Cf data with Frontend Gain = (15/2)/(4/4)/(5/5/5/5), OG = 4/2/4, QET biases = 2V setting from 2017/07/25, with 1000 beginning randoms, 30 sec flash with 30 min wait, and a 15ADC bin threshold trigger on DCRC4pB (Side2pF). Charge biases are DCRC1/2 (Side2/1) = 2/-2 V. |
| 1228 | Data looks good so far |
| 1709 | Partially fill LN2 cold trap. |
| 1718 | Start takeAndFlash sequence of 8 60-minute data series of Cf data with Frontend Gain = (15/2)/(4/4)/(5/5/5/5), OG = 4/2/4, QET biases = 2V setting from 2017/07/25, with 1000 beginning randoms, 30 sec flash with 30 min wait, and a 15ADC bin threshold trigger on DCRC4pB (Side2pF). Charge biases are DCRC1/2 (Side2/1) = 2/-2 V. |
| 1719 | 1K pot pressure = 24 mbar. Tweak 1K pot needle valve |