Frank L. H. Wolfs
Department of
Physics and Astronomy, University of Rochester
Status of the T0/TOF studies
¥Since the last bi-weekly meeting we have completed the
following tasks:
¥Studied drifts in TDC gains and determined
that this is a small effect. The
changes in gain can not be responsible for the excess drifts we have
observed.
¥Implemented a new calibration procedures
that corrects for drifts associated with for example the crossing clock. This procedures looks at the average
time of prompt peak of T0N and the T0P counters and calculates a common shift
required to align the centroids of the T0N and the T0P counters with the
expected position of the prompt peak.
The same procedure will also work for the TOF since it does not require
high statistic in each individual channel.
¥Determined first order slewing parameters
for the T0N sensors using beam-gas interactions. Work on the T0P sensors is in progress.