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2012/08/14

0915 Mixing chamber temperature: 86 mK
0930 Filled LN2 cold trap.
1530 Closed V6 and V13A. Opened V9- 48.3 mbar in the dump. Close V9
1554 Opened V9, V5 and then V6. Stopped 1K pot.
1642 Start 1K pot again. Close V5, V6; Open V13A to let mixture re-condense a bit.
1650 Filled LN2 cold trap.
1659 G1, G2 ~ 79 mbar. Closed V9, Re-opened V6.
1812 Open V14 for 4-5 seconds (or when P1 increases ~ 5 mbar) and then close V14. Wait for temperature to stabilize and record temperatures.
1812 H35: 77.5 mK; G1: 69.1 mbar; G2 = 76.7 mbar; P1: 0.05 mbar; P2 = 5.5 mbar; Cold Plate: 14.24 kOhms; Still: 4.53 kOhms; 1K pot: 1.54 K
1825 H35: 78.5 mK; G1: 73 mbar; G2 = 80 mbar; P1: 0.08 mbar; P2 = 6 mbar; Cold Plate: 14.21 kOhms; Still: 4.52 kOhms; 1K pot: 1.54 K
1838 H35: 81.5 mK; G1: 73.6 mbar; G2 = 80.7 mbar; P1: 0.08 mbar; P2 = 5.5 mbar; Cold Plate: 14.31 kOhms; Still: 4.52 kOhms; 1K pot: 1.52 K
1848 H35: 83.5 mK; G1: 75 mbar; G2 = 82 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.39 kOhms; Still: 4.52 kOhms; 1K pot: 1.53 K
1903 H35: 84.9 mK; G1: 75.6 mbar; G2 = 82.7 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.44 kOhms; Still: 4.52 kOhms; 1K pot: 1.53 K
1918 H35: 85.3 mK; G1: 76 mbar; G2 = 83 mbar; P1: 0.085 mbar; P2 = 6 mbar; Cold Plate: 14.45 kOhms; Still: 4.52 kOhms; 1K pot: 1.55 K
1933 H35: 86.3 mK; G1: 77.2 mbar; G2 = 84 mbar; P1: 0.085 mbar; P2 = 5 mbar; Cold Plate: 14.54 kOhms; Still: 4.53 kOhms; 1K pot: 1.51 K
1948 H35: 86.4 mK; G1: 77.7 mbar; G2 = 84.4 mbar; P1: 0.085 mbar; P2 = 6 mbar; Cold Plate: 14.56 kOhms; Still: 4.53 kOhms; 1K pot: 1.54 K
2004 H35: 86.4 mK; G1: 78.4 mbar; G2 = 84.5 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.59 kOhms; Still: 4.53 kOhms; 1K pot: 1.53 K
2021 H35: 86.5 mK; G1: 79.2 mbar; G2 = 85.5 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.61 kOhms; Still: 4.52 kOhms; 1K pot: 1.53 K
2040 H35: 86.5 mK; G1: 80 mbar; G2 = 86 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.60 kOhms; Still: 4.52 kOhms; 1K pot: 1.52 K
2055 H35: 86.5 mK; G1: 82 mbar; G2 = 88 mbar; P1: 0.085 mbar; P2 = 5.5 mbar; Cold Plate: 14.60 kOhms; Still: 4.52 kOhms; 1K pot: 1.53 K
2102 Opened V14 to see how high P1 would increase. Reading went to 1000 mbar.
2105 H35: 90.3 mK; G1: 90 mbar; G2 = 96 mbar; P1: 0.09 mbar; P2 = 5.5 mbar; Cold Plate: – kOhms; Still: – kOhms; 1K pot: 1.53 K
2114 Stopped 1K pot. Pressed automatic “warm” on labview VI. IGH went a little crazy with trying to pump out the 1K pot. Aborted program. Pump mix to dump.