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User name M. Cummings
Log entry time 05:38:37 on March13,2012
Entry number 366159
keyword=Bleedthrough testFigure 1: Scaler rates with no beam in Hall A and beam in Hall C
Results of Test:
Rate_cosmic = 14.49 Hz
Rate_A+C+cosmic = 3813 Hz (50nA of beam)
Rate_C+cosmic = 14.99 Hz
Based on these numbers, the %bleedthrough is 0.000013118
FIGURE 1
