Measurement Repeatibility

I think that once I am done graduate school I am going to get away from doing measurements.  My group takes the measurements I make as a physical constant when I can get them to change daily (if you ever want to mess up a scintillation experiment put a tin can around the PMT). In any case even when the repeatability looks good (see the following two plots), at very low count rates (past channel 4,000) the variation becomes quite large, and this is the feature of interest.

The solution?  Only measure once.

Other thoughts:

• In addition to posting you speed on the electronic speed gun signs, they should post the fine you would get.
• First Voodoo (SE) club tournament is First Shots, in Charleston, SC.  To the BEACH!  I hate sand.