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    User name Punjabi

    Log entry time 00:00:14 on April12,2006

    Entry number 170494

    keyword=Swing shift summary

    16:00 Waiting for the beam after beam studies.

    18:00 got the beam. Started checking raster size with empty target.

    after that changed to 3He target, measured target polarization.
    Target polarization is 46.8 %.

    Brandon loaded nomonal HV on BB chambers (they were at lower HV).

    18:31 Started taking datan with 3He target, raster 2x2 mm, run 3876. 18:38 Had to stop the run 3876 as BB chamber HV were not correct yet.

    18:39 Started run 3877. BB DC HV correct. 3He target, raster 2x2 mm.
    New values of HV in BB counters (shower, preshower).
    18:49 Lost beam. MCC said they lost a dipole and have to recycle it. Will take about 20 minutes.

    19:13 MCC called and said it seems dipole power supply is burnt and will take a while for beam to come back, they will keep us informed.

    Runs 3878 to 3886 are cosmic runs

    22:00 Beam back. Check raster (run 3887) with empty target.

    Runs 3878 to 3886 are cosmic runs

    started parity run.

    22:06 Start run 3888 with 3He pol. target, raster 2x2 mm. Correct HV in BB DC. Old HV values in BB shower, preshower.

    23:20 Stopped run 3888. 1.92M events.

    Hall B requested to change halfwave plate. It is out now.

    Started new parity run also.

    23:22 Started run 3889 with 3He pol. target, 2x2 mm raster.

    23:59 Run 3889 is still running.