[BTeam] CEBAF/CRYO response to responses

[Arne Freyberger]

I have had several responses to the CEBAF/Cryo email about the schedule 
for transitioning to 6GeV.   First, this decision has not been made 
yet.  My query was to make sure this is a viable alternative in case we 
have to go that route.    In the e-mail, there is the following statement:

    The SCN must be warmed up and decontaminated in order to support
    *any* 2K operation. (emphasis added)

This means it will be days before CEBAF would be at 2K, if not a week 
(my estimate, not Cryo's).   Not only is there the warm up and cool down 
of SCN there are U-tube operations and other heavy lifting by Cryo.   So 
we have time (about a week) to plan for this, if it is the path taken.

I hope to have a path forward by the Wednesday 1:30 scheduling meeting.

Presently the machine is in the restricted access state and the control 
room is not staffed.   Contact the crew chief on-call for any MCC 
related business.

I appreciate the quick response to the 6GeV  configuration question, 
this is useful information going forward.   So far I have not heard of 
any show stoppers.

Peace and heres to better days ahead!

Arne

-- 
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab
12000 Jefferson Avenue      Cell: (757) 876-6289
Postal Suite 19             Email:  freyberg at jlab.org
Newport News, VA 23606

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