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    User name S. Strauch

    Log entry time 08:19:23 on April12,2000

    Entry number 38978

    keyword=Shift summary

    Shift summary
    ----------

    4He(e,e'p) runs @ Q2 = 1.0 GeV2, parallel to Compton measurements

    00:30 raster check, trig-setup
    00:45 asked MCC to increase the beam current to 40 uA
    01:00 found FPP HV channel 7.1.4 tripped
    02:30 second FPP HV channel 7.1.4 trip, checked gas flow, seems all right

    1391 : 1.1 M events, FPP trip
    1392 : 1.2 M events, FPP trip
    1393 : 1.0 M events, FPP trip
    1394 : 0.2 M events, FPP trip
    1395 : 0.2 M events, FPP trip
    1396 : 0.5 M events, FPP trip
    total 4.2 M events, but with FPP trip in at least a fraction of the runs

    03:00 FPP up again
    03:55 asked MCC to correct the beam position

    1397 : 1.1 M events, FPP OK
    1398 : 1.2 M events, FPP OK
    1399 : 0.3 M events, FPP OK, beam pos. off by 0.3 mm
    1400 : 1.2 M events, FPP OK
    1401 : 1.2 M events, FPP OK
    1402 : 1.2 M events, FPP OK
    1403 : 1.2 M events, FPP OK
    1404 : 1.2 M events, FPP OK
    1404 : 1.2 M events, FPP OK
    1405 : 1.2 M events, FPP OK
    1406 : 1.2 M events, FPP OK
    1407 : 1.2 M events, FPP OK

    total 13.4 M events / 5 h on average 2.68 M events/h
    smooth data taking between 03:00 and 08:00