_ fixed NC cosmic trigger and ecl-panel for Lsector. Now the NC-or'ed
trigger goes to the LMLU
_ Debugged e-map for NC. It is fine for the left but there is some TBLraw
bug for the right sector. Put all NC ADC thresholds to zero.
_ With VZ, we disconnected (and terminate into 50 Ohm !) the bad CC PMTs
from the analogue adder panels. Again, like for the TOFs, signal cables
do not seem to be terminated into 50 Ohm at the PMT. All signals have
a 600 ns reflection (one trip to hall and back).
_ Also, with beam, we disconnected two other CC-pmt's as they were
responsible for 90% of unreasonable rate on CCr3 and CCl0. This we
attribute to above average noisy tubes. Finally on CCL1 one cable
carries no signal while HV draws current
_ In total we have 5 tubes less (2 were known to be bad tubes, 2 pmt
have been taken out because of their unrealistic rate, > 100 KHz each)
_ Adjusted CC offsets, made trigger files for NC and trigger files for
a coinc with only the rear 8 tofs (note: a plain rear 8, back 8 only
allows us to study the first 2 CC boxes)
_ Still waiting for beam. VZ is investigating the software bug in the
reconstruction.
Runplan has been printed. See logbook
-- t
________________________________________________________________________________
Tancredi Botto, phone: +1-617-253-9204 mobile: +1-978-490-4124
research scientist MIT/Bates, 21 Manning Av Middleton MA, 01949
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