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    User name Sirish

    Log entry time 18:30:45 on July18,2003

    Entry number 104507

    keyword=Compton

    Compton cavity up and running at 1600 Watts. However, auotmatic polarization reversal of the cavity fails to work.

    The beam quality in the compton polarimeter is acceptable. Insertion of the electron detector does not trip the beam at 5uA. That is a "first" at 2 GeV! The compton scattering to background ratio is 3:1 in singles and 25:1 in coincidence, very decent indeed.

    The beam orbit is not optimal. The electron detector singles rates are much higher than photons. We will further optimize on monday