[Hallb-engineering] [New Logentry] Follow-up Re: Follow-up Re: Follow-up Re: Follow-up Re: Hall B Solenoid Cryogenic Tuning

kashy at jlab.org kashy at jlab.org
Wed Jan 10 15:50:04 EST 2018

Logentry Text:
The re-tuning of both the Torus and Solenoid has dramatically reduced and stabilized the temperatures and almost all the heaters are turned off. Lead flow for the solenoid has also been reduced.

One heater on the Magnet reservoir (HTR8672) is running at at about 20% or 12W average. The gas that exits from this reservoir goes back to ESR warm. the valve that is supplying this flow is at its min position which is 6.5% more closed wil make it go unstable. It may be that EV8611CD is leaking by a little.

The other heater that is coming on once in a hile is HTR8120. it is now averaging less than 5% on or 5W. 


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/3510448
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