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User name R. Michaels
Log entry time 20:58:10 on April 26, 2008
Entry number 234891
This entry is a followup to: 234874
keyword=re: helicity errors
I would suggest (based on past experience) that "helicity errors" may be
more an artifact of the algorithm getting confused when it misses many
helicity transitions -- e.g. due to a beam trip (no triggers for a period
of time) or other deadtime. Try checking stable running conditions and
if they are ok we are probably in good shape. If you are worried you can
do a run with 100 Hz of T8 (ps8=10) which ensures that all the helicity
transitions (30Hz) are seen even if beam trips. Such a run could be done
once every couple days until the fear goes away.
A copy of this log entry has been emailed to: vasulk@jlab.org,moffit@jlab.org