Frank L. H. Wolfs
Department of
Physics and Astronomy, University of Rochester
Conclusions of PR03
¥The main struggle during PR03 was the cross talk
within and between twisted-pair cables, which was discovered after observing
ÒweirdÓ correlations between T0 counters installed on opposite sides of the
IR.
¥Andrei Sukhanov was able to show that these
correlations were due to cross talk between the two ribbon cables that carry
the individual T0 signals to the CH.
¥During the pp run, correlations in the T0 ORs were
discovered, despite the fact that these signals arrived in the CH over Twinax
cables. These correlations were
due to the twisted-pair cables between the patch panel in the CH and the TDCs.