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    User name A. Camsonne

    Log entry time 12:27:04 on June 14, 2009

    Entry number 281315

    keyword=Timing Jitter Compton modified electron board

    To look at the improvement of the fixed electronics, I enabled on the
    first 16 strips of alternativly plan C and D. And look at the dispersion
    of the electron with respect to the photon signal.
    We see a clear improvement in the jitter about 300 ns for plane D which
    was modified and no delay ( the photon shaped gate was set for
    coincidence with C ).
    While on plane C the jitter is about twice as big around 500 ns.

    On channel 1, the electron trigger.
    On channel 2, the delayed and shaped photon signal
    On channel 3, the original photon signal




    Figure 1



    Figure 2