[Esr-users] Cool downs of the 15K targets

Dave Kashy kashy at jlab.org
Wed Mar 21 09:20:25 EDT 2018


Hi All,
Below is the plan for high power targets in Halls A and C

Dave


----- Original Message -----
From: "Steve Suhring" <suhring at jlab.org>
To: "jwilson" <jwilson at jlab.org>
Cc: "Randy Michaud" <rmichaud at jlab.org>, "Christopher Perry" <cperry at jlab.org>, "kashy" <kashy at jlab.org>, "Jonathan Creel" <creel at jlab.org>, "Dave Meekins" <meekins at jlab.org>, "Swapnil Shrishrimal" <swapnil at jlab.org>
Sent: Tuesday, March 20, 2018 6:24:10 PM
Subject: Re: Cool downs of the 15K targets

Very Good. 
SS 


From: "Joe D. Wilson" <jwilson at jlab.org> 
To: "Randy Michaud" <rmichaud at jlab.org>, "Steve Suhring" <suhring at jlab.org> 
Cc: "Christopher Perry" <cperry at jlab.org>, "kashy" <kashy at jlab.org>, "creel" <creel at jlab.org>, "Dave Meekins" <meekins at jlab.org>, "Swapnil Shrishrimal" <swapnil at jlab.org> 
Sent: Tuesday, March 20, 2018 3:48:06 PM 
Subject: FW: Cool downs of the 15K targets 



Hello Program Deputy, 

For your whiteboard, Cryo plans to support the requested 15K target cooldown schedule. 

Thanks! 




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

Joe D. Wilson, Jr. 

Cryogenic Operations Engineer 



Jefferson Lab 

www.jlab.org 

757-269-7722 

jwilson at jlab.org 







From: David Meekins [mailto:meekins at jlab.org] 
Sent: Tuesday, March 20, 2018 3:28 PM 
To: Christopher Perry <cperry at jlab.org> 
Cc: Cynthia Keppel <keppel at jlab.org>; Dave Kashy <kashy at jlab.org>; Christopher Keith <ckeith at jlab.org>; Joe Wilson <jwilson at jlab.org> 
Subject: Cool downs of the 15K targets 





Hi Chris, 





We have a tentative plan to cool down the 15K targets in Halls A and C. 





Hall C is planned to be cooled down tomorrow with helium as a target fluid. The plan would be to then condense H2 and D2 on Thursday if the accelerator looks like it can deliver beam on the weekend. 





Hall A: plan is cool down Friday. If the accelerator recovery is delayed this might be delayed until Monday. 





Can this plan be supported by Cryo? Do you have any questions or concerns? Can we start in the AM tomorrow? 





Thanks 





David Meekins 
Staff Scientist 
Thomas Jefferson National Accelerator Facility 
12000 Jefferson Ave 
Newport News Va. 23606 

Office: 757-269-5434 
Cell: 757-968-9076


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