¥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.
¥Continued
DST production required for TOF studies.