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

[freyberg at jlab.org]

========  PD STATUS SUMMARY FOR LASOS AND ANYONE ELSE WHO MAY BE INTERESTED OR =
======== LISTENING  [1]  =======================================================


Lognumber 3278190 [1]. Submitted by freyberg [2] on Sat, 03/29/2014 - 13:16.



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|Logbooks:|BTLOG [3]|
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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....

[1] https://logbooks.jlab.org/entry/3278190
[2] https://logbooks.jlab.org/user/freyberg
[3] https://logbooks.jlab.org/book/btlog
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