2011/09/02

0853	A DAQ error occurred when quitting the DCRCv3MultiDAQ.vi at ~ 01:50. The last series of data might be fine.

0910	DCRC30 trigger seem to lose response. The two charge amplifier LEDs are off. Cycle the power of it.
0915	DCRC30 came back online. Tower temperature 54.7mK.
0918	Timing link is on. Flash the detector for 10 min since the detector has been under -5V bias after the DAQ error. Take -7V data after 80min cooldown.
0932	Filled N2 cold trap.
1157	DCRC30 lost signal. This may happen at 10:54 where a temperature spike showed up. Stop the DAQ. Found the charge amp LEDs are off. Cycle the power.

Data taken

1.3G    ./07110902_1053
522M    ./07110902_1144

The data could not be processed. Just deleted the files.

1217	DCRC30 lost charge amp power again when trying take data. Was it because the bias was too large or POE problem?
1753	Flash 10 min and then take +1, +2, +4, +6V data. 4 series for each bias. Trigger on Q1-3 at 32 ADC bins. Data/flash/cooldown = 30/0.1/20 min.