[BTeam] upcoming beam study prior to machine shutdown

[Jay Benesch]

Yves,

If you do load lower dispersion optics into arcs 1 and 2, Kitty and I 
would like up to an hour to explore energy aperture per
https://tasklists.jlab.org/bslist/tasks/108265

Since Kitty is on owl shift this week I'll work with the crew.  The 
first part of next week we both may be available.

Jay


On 3/9/23 16:04, Yves Roblin via BTeam wrote:
> We are making a list of beam studies prior to shutdown.  Update your 
> beam study testplans BSlist. If possible, before tomorrow COB or at 
> least before next bteam.
> 
>   One beam study that I am already considering is to try low dispersion 
> optics into arc1/arc2. This is for planning postsad optics, its also 
> part of data that Isirumali would like for her phD,  and its similar to 
> what we will use for the positron/cebaf er and ffa projects.  Dennis is 
> working with Isurumali to write the BSlist.
> 
> We already did the fast feedback (we are running it productively now in 
> Hall C).
> 
> Nathan Rider has a proposal to take data from 1nA to 1000 nA terminating 
> beam into Hall A or C (the only halls with devices to measure current in 
> this range accurately enough .). This has to be coordinated with the 
> halls to see if the bcm cavities can be used to measure that. Nathan is 
> reviving the 1L27 test stand where they have a new bpm design and he 
> wants to do cross-checks with known beam current.
> 
> We will finalize tuesday with a tentative schedule (to be coordinated 
> with PD)  of wednesday. I think we need to schedule a full 8 hours block 
> (maybe 6hours of actual studies and 2 hours to recover beam).
> 
> 
> 
> 
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