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2014/08/28

1115 Disconnect scroll pump from IGH to pump out IVC pumping manifold.
1120 Pump out nitrogen line and add >1bar of nitrogen gas to IVC in preparation for opening.
1125 Fill LN2 cold trap full. Place cold traps back in bath.
1135 Open manual dump valves in preparation for cryocleaning. Current dump pressure of 668mbar. Commence cryocleaning.
1330 Finish cryocleaning. Pump to dump.
1410 Current pressures: G1: 0.1mbar, G2: 628mbar. Commence cryocleaning through Cold Trap 2 again.
1602 Finish cryocleaning mixture. Pump to dump.
1635 Mixture isolated in dump. G1: 0.0mbar, G2: 622mbar. Commence cryocleaning through Cold Trap 1.
1645 Fill LN2 cold trap full.
1830 Seal and evacuate IVC.
2210 Re-tighten bottom indium seal.
2230 Fill N2 cold trap full.