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Nick Brewer: Difference between revisions
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The cryostat was pumped down to 1.9E-5 mbar this morning.
After closing the butterfly valve and shutting off the pump, the pressure went down to ~4E-4 mbar almost immediately. After 15 minutes the pressure was at 8.6E-3 mbar.
It might be best to have the pressure gauge directly attached to the 'instrumentation skirt' of the cryostat. There are blank flanges we could have a KF-25 flange put on.
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