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2019/04/14 (Sunday)

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Status Warming. All mixture in dump. LN2 traps warm. 1K Pot needle valve open. Nitrogen exchange gas in IVC. Nitrogen and helium exchange gas in cryostat vacuum jacket for fast warmup.
1440 The purge gauges look fine in the purge cabinets, looks like the nitrogen problem isn't affecting our clean room too much. All gauges read above 5 of whatever unit they are measuring.
1445 Plug in scroll pump and begin pumping out vacuum jacket, turbo pump reads 1 mb.
1530 Turbo pump reaches 5.4e-2 mb, open turb pump valve to continue pumping on vacuum jacket, close valve on scroll pump and unplug it.

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