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User name Saha
Log entry time 16:08:43 on September 26,1998
Entry number 1514
keyword=Current Calibration
Current calibration completed 1600 hrs, Sept 26. It took about an hour. The calibration was done in 3 parts, the first part was to center beam onto the Faraday Cup at the injector. The second part was to cycle the beam with different currents. The maximum beam current we got was ~42 microA. We cyled through 40, 20,10,5,2,1 microA with 0 currents in beteween each cycle every 30 seconds. These data files are in Run numbers 1223 and 1224. The standard current calibration was done with 41 microA with 6 cycles each a minute apart and is in run number 1230. We have changed the threshold to 0.5V which corresponds to ~12.5 microA.