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    User name mercado

    Log entry time 16:13:01 on April10,2010

    Entry number 316813

    keyword=Detector vs BCM fit - pedestal error?

    
    Shown below are fits of detector signal versus BCM1.
    
    Extrapolating the fits to the y-axis, we can get an error for the pedestal.
    
    For each detector, the Y-intercept is:
    det1: 6250
    det2: 6321
    det3: 5897
    det4: 6397
    
    These values correspond to errors in the pedestal of:
    det1: 6.9%
    det2: 6.9%
    det3: 6.5%
    det4: 7.0%
    
    The consistency of these errors indicates a pedestal error.
    
    So, assuming the detectors are linear to within 2%, we could use them to 
    calibrate the BCM pedestals more accurately.
    
    


    FIGURE 1