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    User name Binet

    Log entry time 10:24:53 on September 6,2001

    Entry number 73607

    Followups:

    keyword=Mistune in the Compton Chicane

    It seems that there is a problem with the tune of the beam.
    Last good measurement was at 12:00 the 9/5.
    Now there is a 100% of dead time in the photon detector and there is 1MHz of counting rates in the electron detector (instead of ~1kHz).

    My guess for the moment is that it is a halo problem.

    First picture: Counting rates in the photon detector (~1 kHz/muAmp, we were running at ~12 muAmp)

    Second picture: Counting rates in the photon detector (~nothing because of dead time so huge counting rates)



    FIGURE 1

    FIGURE 2