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    User name bogdanw

    Log entry time 23:50:10 on January13,2002

    Entry number 80317

    keyword=shift summary


    scan of the apperture by using veto18 rate as indicator
    find that x=-4mm, 0y=0.8mm is best position

    trigger threshold calibration in steps of 15 mV - runs #1495-1501

    install 1.5 inch plastic shield for lower part of the veto counters
    see effect on the veto counter 35 in the
    run #1500 made before and the run #1509 after installation