[Esr-users] Unstable Hall B return temperature

Joe D. Wilson, Jr jwilson at jlab.org
Fri Jan 12 14:43:02 EST 2018


The attached plot compares the 4.5K return line temperatures among Hall A, B and C. Hall B line is only line that that has the period temperature spike which perturbs ESR operations.

 

-----------------

Joe D. Wilson, Jr.

Cryogenic Operations Engineer

 

 

From: Esr-users [mailto:esr-users-bounces at jlab.org] On Behalf Of Joe D. Wilson, Jr
Sent: Friday, January 12, 2018 2:26 PM
To: ESR-users at jlab.org
Subject: Re: [Esr-users] [New Logentry] Unstable Hall B return temps

 

>From the log entry, here is the attached picture that some of us could not open.

 

-----------------

Joe D. Wilson, Jr.

 

From: Esr-users [mailto:esr-users-bounces at jlab.org] On Behalf Of cryo at jlab.org <mailto:cryo at jlab.org> 
Sent: Friday, January 12, 2018 2:15 PM
To: ESR-users at jlab.org <mailto:ESR-users at jlab.org> 
Subject: [Esr-users] [New Logentry] Unstable Hall B return temps

 


Unstable Hall B return temps <https://logbooks.jlab.org/entry/3511527>  


Lognumber 3511527 <https://logbooks.jlab.org/entry/3511527> . Submitted by cryo <https://logbooks.jlab.org/user/cryo>  on Fri, 01/12/2018 - 14:14. 

Last updated on Fri, 01/12/2018 - 14:14


Logbooks: 

CLOG <https://logbooks.jlab.org/book/clog> 


Entry Makers: 

cperry

The Hall B 4K return temperature as been very unstable lately including a significant increase in temperature starting this morning at 8 and not turning around until noon.



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