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    User name M Friend

    Log entry time 14:57:37 on November19,2009

    Entry number 301045

    This entry is a followup to: 300423

    keyword=Compton photon beam position

    The Compton photon beam position was determined using a finger scan. This is important, since the photon detector was moved in z and could have chaged some in x and y with respect to the photon beam. The current beam position is y=19mm (finger) or y=39mm (GSO centered) and x=54mm (finger) or x=74 (GSO centered). Previous results were x=72mm and y=38.5mm (before the detector was moved).


    FIGURE 1

    FIGURE 2