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2011/07/17

1030 IVC He level: 1.1e-9cc/s with pumping station connected, 5.8e-9cc/s with the pumping station isolated. MC T=12.8K. Tower temperature: 12.9K. MC temperature rose to 18.8K at ~23:00 yesterday and then started to drop.
1042 Close IVC, start 1K pot and condensing mixture.
1056 Filled N2 cold trap.
1155 Start circulation of mixture.
2335 Tower temperature 71 mK. Rate of decrease has been slowing for some time.
Plug in DCRCs. Tower temperature jumps to 123 mK before falling again.
Start flashing and baking detector. Tower temperature rises to 625 mK.