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2012/12/08

1205 Filled LN2 cold trap.
Fed Cricket 4 pellets.
1245 Opened V14 for 5 seconds to add in some more mixture.
1404 Opened V14 for 5 seconds to add in some more mixture.
1528 Opened V14 for 7-10 seconds to add in some more mixture.
1530 Opened V14 for another 3 seconds to add in some more mixture.
1650 Opened V14 for 10 seconds to add in some more mixture.
Time P1 (mbar) P2 (mbar) G1 (mbar) G2 (mbar) Mixing Chamber (mK) Still (kOhms) Cold Plate (kOhms) 1 K Pot (K)
1230 0.06 9 63 64 75 4.40 13.9 1.6
1344 0.06 9 63.8 65.9 77 4.39 14.02 1.6
1527 0.06 12 64.5 66 79.7 4.39 14.1 1.6
1639 0.065 9 66 67.7 84.6 4.40 14.2 1.59
1749 0.065 9 67.6 69.3 89.7 4.41 14.4 1.58
1757 Begin 1-shot test (closed V13a, opened V9).
1912 The thermometer froze at 37.0005 mK for a couple of minutes. It's functioning again.
1924 The temperature seems to be increasing again.
1942 The fridge seems to be experiencing a cooling effect again.
1948 The temperature seems to be increasing again. (G2 ~ 330 mbar)
2034 Filled LN2 cold trap.
Fed Cricket 4 pellets.
2041 Stopped 1 K pot and recovery from 1 K pot. Opened V5. Now pumping mixture to dump from both still and condenser line.