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2012/04/29

1930 Fill N2 cold trap full.
2355 Stop 1 K pot pump. Pump mixture into dump. Start warm up.

Mechanical Vibrations Induced by 1 K Pot Pump

Figure 1: DCRC32 attached to flexible side coax, DCRC33 attached to vacuum side coax: 1 K pot pump on (left); and off (right).
Figure 2: DCRC32 attached to flexible side coax, DCRC33 attached to vacuum side coax: Ratio of PSD data for 1K pot pump on/1K pot pump off.