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    User name D.Wang

    Log entry time 02:27:14 on November 4,2009

    Entry number 297343

    keyword=put compton photon detector in position

    Just found that the photon detector is away from the beam (x position is 0). That's why we didn't see any rate. I just moved the detector to its normal postion and see the rate now. However, the background is high.

    FIGURE 1