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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.

Comparing the settings

Side One

Old Settings (07121012_0256)(-+) New Settings (07121013_0926)(-+)
Old Settings (07121012_0818)(+-) New Settings (07121013_1327)(+-)

Side 2

Old Settings (07121012_0256)(-+) New Settings (07121013_0926)(-+)
Old Settings (07121012_0818)(+-) New Settings (07121013_1327)(+-)