Introduction

Data were taken on December 3, 2007 with various timings for the endcap.  The relevant runs are 8337070-77.  According to the elog for that day the timings are:

Note that runs 8337074/75 are repeats and that run 8337072 corresponds to the nominal timing.

The code for producing the plots can be found in cvs:

StRoot/StEEmcPool/StEEmcTimingMaker/.

Simply follow the instructions in HOWTO, making sure to run the appropriate code depending on if you are running over MuDsts (runEEmcTiming.C) or l2 timing files (runEEmcL2Timing.C)

Results

The figure below shows the timing scans for each crate.  Attached are scans for each individual crate, in pdf format.

I consulted with Jason, who wrote the code and is the expert.  He had this to say:

"It looks to me like they took this timing scan either well outside the plateau region, or well inside the plateau region. Probably the latter, since 25-30% of events are showing up w/in the window.  Yeah, I guess it looks right."