[Hallb-engineering] [New Logentry] Follow-up Re: Torus/Solenoid/Buffer dewar cool down

[kashy at jlab.org]

Logentry Text:
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Good progress on cooling the Hall B systems.
We circulated all portions of the system after having no flow for 1 week. 
I minor bump on the contamination sensor at ESR was seen and it went from about 2ppm to 4ppm briefly after 20minutes but quickly cleaned back up. 
The sensor at CHL purifiers went up sooner for some reason to about 37ppm and cleaned up quicker.

Solenoid average temperature 50K, Torus 51K and buffer dewar flowing.
We now have a fairly stable cooldown with the Solenoid cooling at 1.3K/hr and Torus at 4K per hour.




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This is a plain text email for clients that cannot display HTML.  The full logentry can be found online at https://logbooks.jlab.org/entry/3544576
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