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2014/08/16

1320 Arrive to find P1=16 ubar, G1=.8 mbar, and G2=669.1 mbar.
1420 Commence cryocleaning through coldtrap 1. Start pumping of IVC. Start LHe transfer (0.8%).
1500 End LHe transfer (48.8%)
1530 Start pumping mixture to dump.
1545 G1=0.3 mbar, G2=639 mbar, P1=15 ubar.
1555 Commence cryocleaning again.
1705 Start pumping mixture to dump.
1720 G1=0.1 mbar, G2= 624.6 mbar, P1=15 ubar. These values suggest that no mixture was lost. Prepare to clean cold trap 1.
1730 Pull out cold trap 1.
1805 Finish one round of cold trap 1 cleaning. Isolate IVC.
1817 Start 1 K Pot. Fill LN2 cold trap full. Open gate valve and condenser line speedivalve, during which P1 rises to .5 mbar.
Start condensing procedure with 624 mbar mixture in the dump. Since we want 350 mbar in the lines, we will close V9 when G2=274 mbar.
1842 Close V9 with 274 mbar inside the dump.
1850 Open V12 all the way.
1858 Although G1 and G2 have reached ~80 mbar and started increasing, attempt circulation anyway. Mixing chamber temperature at 2.25 K.
1915 Open V6 all the way. Currently mixing chamber temperature at 1.007 K and dropping, G1=123 mbar, G2=135 mbar, P1=.26 mbar, and 1K Pot temperature at 1.591 K.
1920 Mixing chamber temperature at 750 mK and dropping.
1922 Mixing chamber temperature at 631 mK and has started rising. The village folk are readying their pitchforks.
1935 Mixing chamber temperature has somewhat stabilized, oscillating around 880 mbar. 1K Pot temperature at 1.578 K, G1=127.7 mbar, G2=134.8 mbar. Leave the system overnight.
???? Feed Wicket Alexander.