[BTeam] [New Logentry] PD status summary for LASOs and anyone else who may be interested or listening

[Arne Freyberger]

Below is the schedule for the upcoming days.  Recent changes include 
removing Yves from Sunday Swing so he can support Hall-A  Moller work 
during Sunday mid-Day/early swing (or whenever it happens).

If we resolve this instability we can "stand down"......but......
Arne

                      Mar27_Apr1_LASO_Supplemental
                      ============================

Author: Arne Freyberger <freyberg at jlab.org>
Date: 2014-03-29 13:35:04 EDT


   Day Name                Date     Owl   DAY           DAY             Swing        Swing
                                          LASO          Supplement      LASO         Supplement
  -----------------------+--------+-----+-------------+---------------+------------+---------------
   Thursday                Mar-27         S. Zhang      M. Spata        Y. Roblin    M. Tiefenback
   Friday                  Mar-28         M. Stutzman   A. Freyberger   C. Tennant   T. Satogata
  -----------------------+--------+-----+-------------+---------------+------------+---------------
   Saturday                Mar-29         V. Morozov    J. Benesch      D. Douglas   G. Krafft
   Sunday                  Mar-30         J. Grames     A. Freyberger   A. Hofler
   Monday (1000MeV/pass)   Mar-31         M. Ahmad                      S. Benson    M. Tiefenback

On 03/29/2014 01:20 PM, freyberg at jlab.org wrote:
>
>
>   PD status summary for LASOs and anyone else who may be interested or
>   listening <https://logbooks.jlab.org/entry/3278190>
>
> Lognumber 3278190 <https://logbooks.jlab.org/entry/3278190>. Submitted 
> by freyberg <https://logbooks.jlab.org/user/freyberg> on Sat, 
> 03/29/2014 - 13:16.
>
> Logbooks: 	BTLOG <https://logbooks.jlab.org/book/btlog>
>
> A very humbling effort so far. The optics work that started Thursday 
> evening and converge a bit before mid-night on Friday looks great. 
> However since about 1am this morning we've been chasing an energy 
> instability that results in BLM trips at the high dispersion points 
> (namely 1C12, but sometimes it is other BLMS speak up).
>
> The Arc2 sync. light monitor clearly shows the energy instability, but 
> we've yet to identify the source. Several cavities have been 
> by-passed, all cavities are in the process of being phased up, hoping 
> that the offender will stand up, no luck so far. Aperture check looks 
> great through the A line, but a wobbly beam won't make it through.
>
> the hall is patiently waiting.
>
> If this issue gets resolved, the program is to perform a BCM 
> calibration up to maximum current the beam can delivered or has been 
> authorized and then the Hall will perform a target boiling test. These 
> goals have a drop dead time of 8am tomorrow morning.
>
> CW, a true test of the machine, no place to hide....
>
>
>
> _______________________________________________
> BTeam mailing list
> BTeam at jlab.org
> https://mailman.jlab.org/mailman/listinfo/bteam

-- 
Arne Freyberger
Director Operations Department
Jefferson Lab           Phone: (757) 269-6268
12000 Jefferson Avenue  Pager: (757) 584-6268
Newport News, VA 23606  Email:  freyberg at jlab.org

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.jlab.org/pipermail/bteam/attachments/20140329/6bdb5863/attachment-0002.html>