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User name B. Craver
Log entry time 18:04:49 on March 8,2006
Entry number 165813
keyword=MWDC status
During the access, low voltages were tuned - they had dropped by an average of ~ 100 mV. Threshold voltages remained at the nominal values of 4.0, 3.0, 3.0 V for chambers 1, 2, 3, respectively.
1" acrylic shielding was installed on the front face of chamber 3 and a wall of plastic and aluminum was installed on the right side (facing detectors from target).
Initial cosmics studies gave strange results, but after lowering threshold on the shower counter, which provides the trigger, the behavior appears normal.
Card 3-X10, has begun to misbehave. It has 7 silent channels and a single noisy channel. A solution might be to simply change the pre-amp card, but shielding prevents access.