[g13] #photons/sector problem

[Paul Mattione]

If you look at the monitoring plots, there is a problem with the  
#photons/sector between runs 53538 and 53600.  All sector seem to have  
somewhat high count rates that slowly drift down:

http://clasweb.jlab.org/rungroups/g13/monitor/monitorwrapper.html

However, in this region I have already calibrated 2 golden runs: 53554  
and 53570, so I don't think calibrating some more will help.

There are no EC log entries that correspond to this increase.  Also, I  
don't see any other log entries in this time frame (11/18/2006 -  
12/11/2006) that could account for this problem either.  Does anyone  
have any ideas on what the cause might be, and how to fix it?  Thanks.

  - Paul

On Sep 4, 2009, at 1:45 PM, Edwin Munevar wrote:

I basicallly re-calibrated the run range between 53359-53374  and
53606-53615 (one by one).  The problem is that since last Wednesday I've
tried to re-cook to check the new constants but the database has been
screwed up (or screwing me up) and most of the jobs submitted simply
didn't produce anything useful.  For the range 53606 there are basically
like six or seven files I think you can use.  I wanted to check all of
them just to make sure everything was correct but now Ken submitted jobs
and it's impossible to cook something.....  The calibration constants
were extended only between the ranges 53606-53630.  I'm looking right
now at run 53602 and will modify constants between 53591-53605 so don't
use those runs (53601, 53602).

Files to be found at /work/clas/disk7/clasg13/pass1/v2/dctest0809_2.
Also in disks 2, 3, and 5.  Check that the files are 11M, most of them
are simply trash (16k).



Edwin









On Fri, 2009-09-04 at 13:02 -0400, Paul Mattione wrote:
> Hey Edwin, is that section of runs in the later part of g13a ready for
> re-calib?  What run numbers are you working on anyway?
>
>  - Paul