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2014/02/21

0005 Commence data acquisition. Initial flash for 4 hours followed by 2-hour cooldown. Two data series per bias. Acquisition/flash/cooldown = 5/0.1/20 minutes with bias settings listed below:
Q [V] -12 12 -10 10 -8 8 -6 6 -5 5 -4 4 -3.5 3.5
P [V] -12 12 -10 10 -8 8 -6 6 -5 5 -4 4 -3.5 3.5
0010 Fill N2 cold trap full.
1035 Fill LN2 cold trap.
1810 Fill LN2 cold trap full.
1945 Commence data acquisition with Ba-133 source. Initial flash for 4 hours followed by 2-hour cooldown. Two data series per bias. Acquisition/flash/cooldown = 5/0.1/20 minutes with bias settings listed below:
Q [V] 0 0 -12 12 0 0 -8 8 0 0 -6 6 0 0 -4 4
P [V] -12 12 0 0 -8 8 0 0 -6 6 0 0 -4 4 0 0
2100 Fill N2 cold trap full.