[Esr-users] Elevated ESR load and high recovery suction pressure

Christopher Keith ckeith at jlab.org
Thu Dec 14 15:34:03 EST 2017


We swapped the LH2 in the Hall C cryotarget for gaseous helium, 
finishing around 14:30 today.

The Hall C cryotarget is currently drawing 12 g/s, or about 7 g/s less 
than it was before the swap.

The Hall A T2 target is at 7.5 g/s.


Chris







On 12/14/17 3:27 PM, Christopher Perry wrote:
> All,
>       There is currently an elevated load on ESR causing the dewar to lose liquid level, it appears that this load is returning to recovery suction and causing it to become overwhelmed.  Please respond if you have any information regarding this matter.
>
> Chris Perry
> Mechanical Engineer
> Cryogenics Group
> Thomas Jefferson National Accelerator Facility
> 12000 Jefferson Ave, Newport News, VA 23606
> cperry at jlab.org
> (757) 269-6157
> _______________________________________________
> Esr-users mailing list
> Esr-users at jlab.org
> https://mailman.jlab.org/mailman/listinfo/esr-users

-- 
______________________________________________________
Christopher D. Keith, PhD
Jefferson Lab, Suite 6          email: ckeith at jlab.org
12000 Jefferson Ave.            ph: 757-269-5878
Newport News VA 23606           fax: 757-269-5235
______________________________________________________

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