The small paddles have been removed, all TOFs recabled, Start Counter
disconnected from the efficiency configuration.
Everything in the D-tunnel is back (T-s used for small paddles removed).
We took cosmic runs 2372 and 2374 to check if everything is back as it
should be after one week of plugging and unplugging cables for efficiency
measurements.
In run 2372, Cerenkovs were in X-mode. That gave us the ugly spikes in
ADCs again. I really wish I understood those (for now, we think it is
background in the South Hall, I will look more into this when I get a
chance).
Run 2374 - Cerenkovs required, spikes gone (as expected).
On the left sector four ADC channels looked different than the target (one
was like that a week ago too, we checked). They need fine-tuning.
On the right, two channels looked different, Tancredi knew about those
(they were 50 Ohms terminated, thus only giving half the signal).
Over all, it was worth doublechecking everything in our opinion.
We never got to start Cerenkov testing with flasher, as we wanted
initially - but it seems the priority is to finish checking the TOFs (that
includes timing). The above TOF channels should be fine-tuned before
retiming...
Hauke and Adrian
-------------------------------
Adrian Sindile
Research Assistant
Nuclear Physics Group
University of New Hampshire
phone: (603)862-1691
FAX: (603)862-2998
email: asindile@alberti.unh.edu
http://einstein.unh.edu/~adrian/
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