[Dsg-hallb_magnets] VCL temps during trip

[Amrit Yegneswaran]

what issues brian? 



From: "Brian Eng" <beng at jlab.org> 
To: "Amanda Hoebel" <amandah at jlab.org> 
Cc: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org> 
Sent: Monday, September 18, 2017 11:07:37 AM 
Subject: Re: [Dsg-hallb_magnets] VCL temps during trip 

Hi Amanda, 

Cryo issues caused the increase in VCL temperatures, which in turn caused the fast dump. 

----- Original Message ----- 
> From: "Amanda Hoebel" <amandah at jlab.org> 
> To: "dsg-hallb magnets" <dsg-hallb_magnets at jlab.org> 
> Sent: Monday, September 18, 2017 11:04:36 AM 
> Subject: [Dsg-hallb_magnets] VCL temps during trip 

> Hello, 
> 
> We were looking at the MYA charts for the trip on Friday and noticed that the 
> trip occurred when the VCL temperatures TR8622A and TR8622B went up while the 
> liquid level LL8620SC went down. Did the temperature increases cause the 
> liquid level decrease or did the liquid level decrease cause the temperature 
> increases? 
> 
> Attached is a screenshot of the VCL temperatures and liquid level. 
> 
> Regards, 
> Amanda 
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