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2014/08/07

1015 Fill LN2 coldtrap. Reattach funnel to IVC.
1340 Finish cryocleaning, pump mixture to dump.
1345 Evacuate main bath and line to nitrogen gas. Close rotary pump speedivalve and flush main bath with nitrogen gas (G3 at 80 mbar).
1420 Evacuate 1K Pot.
1428 Fed the carassius auratus auratus
1505 Fill IVC with 6.3 mbar He exchange gas.
1510 Start LN2 transfer.
1410 With G1=0.1 mbar, P1=11 ubar, and G2=619.9 mbar, isolate dump and begin pumping on cold traps with rotary pump.
1635 End LN2 transfer.
1730 With mixing chamber temperature of 80.17 K, pump out IVC He exchange gas (initially with scroll pump).
1810 Finish first round of coldtrap cleaning.
1850 Finish second round of coldtrap cleaning.
1911 Close all valves on IGH, insert cold traps into dewar. Fill LN2 coldtraps full.
1920 Start cryocleaning mixture through coldtrap 2.