Re: glitch in background of UIUC spectrum

[Steven Clayton <smclayto@npl.uiuc.edu>]

On Tue, May 02, 2006 at 02:04:11PM -0700, Tom Banks wrote:
> 
> > > Since the skimming interval
> > > was apparently 40us not 35us, my first guess about the cause
> > > of the bump must be wrong.
> >
> > Steve -- I just rechecked this.  You were correct.  The skim interval was
> > in fact 35 microseconds, so your theory is not eliminated.
> 
> FYI, and to share what I told Steve this morning after the teleconference:
> I looked at some of the Berkeley lifetime histograms (from different pre-
> and post-skim analyses) and did not see any evidence of a bump like the
> one Steve reports.
> 
> Tom
> 

Okay, I may have found at least one problem, though I don't know exactly
how it should cause a bump at -10us.  I had changed some things around with
the spark cuts, such that instead of cutting the mu entrance early on
a flag is set.  In my subsequent tree analysis I forgot to
check the flag.  It's an easy fix and only requires running over the
trees.  Naturally today is the day that NCSA has to do maintenance on
the cluster...

Steven