2012/10/24
| 0025 | Change trigger definition to charge channels at 40 ADC bins, 10 us coincidence time. Start data acquisition. Flash for one hour, followed by cool down for 2 hours. Then take 3 hour-long data series at -/+3 V bias, followed by three 60-minute data series at +/-3 V bias. Flash all LEDs for 6 seconds between data series with usual settings, and wait 20 minutes for cryostat to cool. Finish with a 20 minute flash and 2-hour cool down. |
|---|---|
| As yesterday, rate of data acquisition is around 4-5 Hz in test run, which is about half of that when triggering on phonons. Most of the pulses that are being recorded are of high energy and hence saturate. | |
| 0035 | Fill N2 cold trap full. |
| 1216 | Filled LN2 cold trap. |











































