[Esr-users] Fwd: [New Logentry] Hall C target load shift

Christopher Keith ckeith at jlab.org
Fri Aug 31 11:51:09 EDT 2018


While Accelerator is down for a week to investigate and repair vacuum 
problems, Dave has begun to put the Hall C cryotarget in standby mode.  
Loop 1 will be cooled to 20 K or so and filled with helium gas, while 
Loop 2 (filled with H2) will warm up.  This will keep the inlet and 
outlet cryo lines cold but will obviate the need to have a dedicated 
target operator in the counting house.


Chris



-------- Forwarded Message --------
Subject: 	[New Logentry] Hall C target load shift
Date: 	Fri, 31 Aug 2018 11:45:02 -0400
From: 	meekins at jlab.org
To: 	smithg at jlab.org, ckeith at jlab.org, covrig at jlab.org, jpchen at jlab.org



  Hall C target load shift <https://logbooks.jlab.org/entry/3593227>

  * Edit
    <https://logbooks.jlab.org/entry/3593227/edit?destination=email/send>
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Lognumber 3593227 <https://logbooks.jlab.org/entry/3593227>. Submitted 
by meekins <https://logbooks.jlab.org/user/meekins> on Fri, 08/31/2018 - 
11:44 
<https://logbooks.jlab.org/entries?start_date=1535726651&end_date=1535733851&book=HCLOG&book=TARGETLOG>. 


Logbooks: 	HCLOG <https://logbooks.jlab.org/book/hclog> TARGETLOG 
<https://logbooks.jlab.org/book/targetlog>
Tags: 	CryoTarget <https://logbooks.jlab.org/tag/cryotarget> Hall C 
<https://logbooks.jlab.org/tag/hall-c>

Shifted load from loop 2 to loop 1 and reduced flow from ESR down from 
15 g/s to ~10 g/s.
Heater power supplies and fan controllers have been disabled.

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