[Bteam] yet another pathlength issue

[Arne Freyberger]

  Today, Curtis and Oren came into my office and asked what the 
implications of a elements shifting in the east arc due to tying in the 
Hall-D line.   They asked if motion of 1cm would be an issue!!!

We need to provide a requirement for the allowed motion of the East Arc 
during the 6 month down.    This is mostly a pathlength issue.  How much 
excess capacity is there at 5.6GeV for the odd-Dogs + Arc-offset?  
Naively I think 1cm is too much, but what is the right number?  Anyone 
want this hot potato?

Arne

-- 
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab           Office: (757) 269-6268
12000 Jefferson Avenue  Cell:   (757) 952-9558
Newport News, VA 23606  Email:  freyberg at jlab.org