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    User name Annand

    Log entry time 23:58:56 on February 1,2005

    Entry number 140573

    keyword=Shift Summary

    Gen Test N20 + HRSL
    p(e,e'p), d(e,e'n) etc.

    17.15 Cryo Target restored
    17.15 HRS L Q2,Q3 PSU trip Hall-A access to reset PSU, cycle magnets
    18.10 2uA beam...BigBite rates rather high, around 1 MHz
    Turn off BB HV after screen grab of rates
    18.40 Increase to 10uA on 15cm LH2 nominal 2.5x2.5mm raster
    spot++ gives approx 2.0x1.5mm (x,y) at target
    20.25 Change to 4cm LH2
    21.40 Change to 4cm LD2
    22.45 Change HRSL angle to 21 deg, Pe 3.485
    23.25 Change to 4cm LH2, 10uA

    E0 = 4.627 GeV
    p(e,e'p) d(e,e'N) 3-position scan N across N20
    central Pe=3,364 Th_e=22.5 deg 4cm LH2,LD2
    + Pe=3.204 Th_e=24.5 deg 4cm LH2...see next shift
    - Pe=3.485 Th_e=21.0 deg 4cm LH2

    2277 15cm LH2,2uA Pe=3.364 GeV, Theta_e/p=22.5/40.3 deg, 3.5M ev
    2278 15cm LH2,2uA Pe=3.364 GeV, Theta_e/p=22.5/40.3 deg, 600k ev
    2279 15cm LH2,10uA Pe=3.364 GeV, Theta_e/p=22.5/40.3 deg, 1M ev
    2280 15cm LH2,10uA Pe=3.364 GeV, Theta_e/p=22.5/40.3 deg, 328k ev
    2281 4cm LH2,10uA Pe=3.364 GeV, Theta_e/p=22.5/40.3 deg, 520k ev
    2282 4cm LD2,5uA Pe=3.364 GeV, Theta_e/N=22.5/40.3 deg, 337k ev
    2283 Empty 20uA while HRSL field changed, Theta_e=21.0deg, 14k ev
    2284 4cm LH2,10uA Pe=3.485 GeV, Theta_e=21.0 deg