[Bteam] Fwd: Beam: Scraping indeed

[Arne Freyberger]

I've found my old  studies on non-zero M56 chicane optics.   See 
attachment: slides that were presented to Bteam, Feb. 2010?
Arne

On 01/21/2012 11:48 AM, yves roblin wrote:
> On 1/20/2012 2:53 PM, Jay Benesch wrote:
>> FYI, just in case you get called about this.
>
> Jay,
>     Talked to Arne yesterday.  We can discuss what we want to do 
> regarding the M56 monday morning after the 8'o clock.
> I asked Alex to come as well since he's done it before.  From your 
> elog/email, I do not see anything wrong with your
>  settings.     Regarding the scraping, I would probably do to M56 
> first if we decide to go ahead with it, then reassess the injector
> since we will have to make sure it can do 180.  At that point, we will 
> see if we are still scraping.
>
> Yves
>
>
>>
>> M56 optics Monday?  Hand phase all the cavities Monday?  Both?
>>
>> http://opweb.acc.jlab.org/CSUEApps/elog02/elog_item.php?elog_id=1660807
>>
>> http://opweb.acc.jlab.org/CSUEApps/elog02/elog_item.php?elog_id=1660807
>>
>> -------- Original Message --------
>> Subject:     Beam: Scraping indeed
>> Date:     Fri, 20 Jan 2012 14:25:52 -0500
>> From:     Hall C Electronic Logbook <cdaq-noreturn at jlab.org>
>> To:     benesch at jlab.org
>>
>>
>>
>> Link: http://hallcweb.jlab.org/hclog/1201_archive/120120142552.html
>>
>> ------------------------------------------------------------------------
>>
>>
>>         User name dalton
>>
>>
>>         Log entry time 14:25:52 on January 20, 2012
>>
>>
>>         Entry number 249121
>>
>> keyword=Beam: Scraping indeed
>>
>> I agree that it looks like we're scraping the low energy of the beam off
>> somewhere. If I compare the attached figure to previous vertical scans
>> (links below) then it's the high energy side that looks reasonable
>> (width and shape) and the low energy side cut off.
>>
>> https://cebaf.jlab.org/elog/entry/1622774
>> https://cebaf.jlab.org/elog/entry/1650911
>> https://cebaf.jlab.org/elog/entry/1614427
>>
>>
>>
>> A copy of this log entry has been emailed to: benesch
>>
>>
>>
>> Figure 1
>>
>>

-- 
Arne Freyberger
Director of Accelerator Operations
Jefferson Lab           Office: (757) 269-6268
12000 Jefferson Avenue  Cell:   (757) 876-6289
Newport News, VA 23606  Email:  freyberg at jlab.org

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