2014/04/14
| 1100 | Fill LN2 cold trap full. |
|---|---|
| 1815 | Modify DAQ automation program to unlock and relock SQUIDs after flashing so that higher bias voltages do not prevent the display of pulses. |
| Start flashing detector for 5 hours followed by 2 hour cooldown and data acquisition. Each bias set will consist of 5-minute data series, interspersed by 6 seconds of flashing and 20 minutes of cooldown. 3.2768 ms trace length; 400 us delay; 200 uS coincidence time; 500 events per file. Data acquired for following biases in order with phonon OR trigger thresholds set at 25 ADC for all phonon channels on each DIB except channels C (DIB2), D (DIB2), and D (DIB3), which were set to thresholds of 40ADC, 30 ADC, and 40ADC, respectively.: |
| DCRC33 (DIB1) [V] | 0 | -1 | -2 | -3 | -4 | -5 | -6 | -7 | -8 | -9 | -10 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DCRC31 (DIB2) [V] | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 0 | -1 | -2 | -3 | -4 | -5 | -6 | -7 | -8 | -9 | -10 |
| DCRC50 (DIB3) [V] | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 1845 | Commence helium transfer. Helium liquid level 32.5%. |
|---|---|
| 1915 | Cease helium transfer. Helium liquid level 95.8%. |
| 2015 | Fill N2 cold trap not full: about a litre shy. |