[Halld-offline] event-number-dependent calibration

Curtis A. Meyer cmeyer at ernest.phys.cmu.edu
Wed Jun 2 15:20:37 EDT 2010


In Crystal Barrel, I think that our calibration constants were tagged by
valid time periods. This of course meant checking the validity more often
than by run, but did allow them to change more often. I am pretty sure that
we never had them change that often though.

The real question comes down to how long is a single run? If they are an 
hour
or less, then it might not be worth the trouble to build a system to 
handle this.

      curtis


On 6/2/10 3:06 PM, Mark M. Ito wrote:
> David,
>
> I had a thought: I remember in G7 they had some kind of problem with the
> tagger(?) where they had to apply a different correction for different
> sections of a single run. This had to be done with some ad-hoc system of
> course. We might think about this since we are starting from scratch: is
> there some way to apply calibrations constants that vary within a run. I
> think you would want to have this as a non-default feature, something
> that only exists if needed.
>
> Just wanted to add that to the feature wish list. Something to think
> about at least.
>
>     -- Mark
>
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-- 
Prof. Curtis A. Meyer		Department of Physics
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