Log entry time 11:05:21 on June14,2004

Entry number 125687

Went to the hall to trace down the Noise pickup in the Left Arm Detector.  Tracked it to the integrate signal I was sending back to the counting house (caused some sort of ground loop).  Looks much better now (figure 1, taken from run 2118).  I'll be keeping an eye on it.

Also tried to re-cable the TTL level (from the counting house) to the Detector Switches by dividing the signal with a level translator, instead of using a Lemo T.  This didn't help.  
Plugged the switch for the Profile Scanner (still the left arm), into the 2nd output on the Power Supply.  I unfortunately won't know if this works until the Scanner's PMT sees beam.  I did, however, see cosmics with the HAPPEX Detector.