[Esr-users] Hall A/C 15K target warmup schedule.

[David Meekins]

Thanks very much Joe for the quick response and clarification. We will be ready to warm up when Cryo is. It might be smart to ramp the magnets down first however. 

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

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


From: "Joe D. Wilson, Jr" <jwilson at jlab.org> 
To: "David Meekins" <meekins at jlab.org>, "esr-users" <esr-users at jlab.org>, "Esr-users" <esr-users-bounces at jlab.org> 
Sent: Tuesday, April 24, 2018 11:15:52 AM 
Subject: RE: [Esr-users] Hall A/C 15K target warmup schedule. 



Hello ESR Users, 

The scheduled end of CEBAF beam operation is 0600 on May 6, 2018. Therefore, the Cryogenics Department is anticipating a prompt warm-up of the 15K targets as the first step in the shutdown process of ESR and CHL1 for maintenance. In summary, the challenging maintenance means that the Cryogenics Department depends on a prompt warm-up of the 15K targets. 

Thanks! 




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

Joe D. Wilson, Jr. 

Cryogenic Operations Engineer 



Jefferson Lab 

www.jlab.org 

757-269-7722 

jwilson at jlab.org 







From: Esr-users <esr-users-bounces at jlab.org> On Behalf Of David Meekins 
Sent: Tuesday, April 24, 2018 10:52 AM 
To: esr-users <esr-users at jlab.org>; Esr-users <esr-users-bounces at jlab.org> 
Subject: [Esr-users] Hall A/C 15K target warmup schedule. 





Dear All, 





Has a schedule for when the Hall A and C targets need to be warmed up been determined? We will need to know relatively soon, for shift planning, if we need to staff the targets for an additional day if the warmup does not happen on the 6th but instead waits until the 7th of May. 





I am available either day but from a user point of view warming up on 6 May would have the advantage of not requiring 6 extra person-shifts. 





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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