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    User name J. Singh

    Log entry time 08:20:09 on July30,2003

    Entry number 108152

    keyword=owl shift run summary


    Beam 1/2wave plate is OUT (and will stay OUT)
    ======
    kin 5.19
    ======
    E=2.135 GeV, P0=1.016, Iset=94.06A, Iread=93.75A, P(left)=2.072

    background contamination=(5.0K/10microA)/(7.4K/4.0microA)=0.27
    cut efficiency=(234166 good events)/(300000 replayed events)=0.78
    correction factor = 1/[(0.78)*(1-0.27)]=1.76

    Run Start:Stop Events Target T1 Beam Current 3023 2356:0010 2.7M Ref Cell, Empty 5.0 K 10 microA
    3024 0019:0032 1.9M Ref Cell, N2 39 K 3 microA
    3025 0045:0106 3.0M Pol 3He, 0 deg 8.4 K 4 microA
    3026 0106:0122 3.0M Pol 3He, 0 deg 7.3 K 4 microA
    3027 0123:0138 3.0M Pol 3He, 0 deg 7.0 K 4 microA
    3028 0138:0148 1.7M Pol 3He, 0 deg 7.0 K 4 microA
    3029 0202:0215 1.7M Pol 3He, 270 deg 7.6 K 4 microA
    3030 0237:0247 1.8M Pol 3He, 270 deg 7.0 K 4 microA

    ======
    kin 5.20
    ======
    E=2.135 GeV, P0=0.938, Iset=87A, Iread=86.75A, P(left)=2.072

    background contamination=(6.1K/10microA)/(7.5K/4.0microA)=0.33
    cut efficiency=(234977 good events)/(300000 replayed events)=0.78
    correction factor = 1/[(0.78)*(1-0.33)]=1.89

    Run Start:Stop Events Target T1 Beam Current 3031 0318:0329 1.9M Ref Cell, Empty 6.1 K 10 microA
    3032 0336:0347 1.9M Ref Cell, N2 41 K 3 microA
    3033 0356:0416 3.0M Pol 3He, 0 deg 7.5 K 4 microA
    3034 0416:0435 3.0M Pol 3He, 0 deg 7.5 K 4 microA
    3035 0435:0453 3.0M Pol 3He, 0 deg 7.3 K 4 microA
    3036 0453:0458 0.8M Pol 3He, 0 deg 7.4 K 4 microA
    3037 0509:0525 3.0M Pol 3He, 270 deg 7.4 K 4 microA
    3038 0525:0531 0.8M Pol 3He, 270 deg 7.4 K 4 microA

    ========
    elastic kin
    ========
    E=2.135 GeV, P0=2.125, Iset=197A, Iread=196.75A, P(left)=2.072

    Run Start:Stop Events Target T1 Beam Current
    3039 raster spot size check
    3040 0726:0736 1.5M Ref Cell, Empty 3.0 K 3 microA
    3041 0741:0751 2.0M Ref Cell, 3He, 35 7.2 K 1 microA
    3042 0753:0804 1.9M Ref Cell, 3He, 90 14 K 1 microA
    3043 0807:0817 2.4M Ref Cell, 3He, 140 21 K 1 microA