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    User name Sharon Beck

    Log entry time 16:06:09 on March30,2006

    Entry number 168939

    keyword=Shift summary

    8:30 - run 3504 stopped because one of the neutron arm bars tripped.
    HV was restored, HV on bar (40,5) was shut down since it was too hot.

    8:49-9:17 - run 3505. The run stopped for polarization meas. Target polarization: 53.5%

    9:35 - run 3506. There were few drops in trigger 3 rates due to drops in the beam current. 10:03 - run stopped.

    10:05 - HV on all Drift Chambers were raised.

    10:10 - run 3507.
    10:15 - stopped HAPPEX run 7162, ~0.45M events. Started run 7163.

    11:12 - stopped run 3507.

    HV on Drift Chambers were raised again by Brandon.

    11:25-12:05 run 3508.

    12:05 - Beam off by MCC for approx. 4 hours.

    12:17 - start cosmic data run 3510. Thresholds were set to: (0):-50mV, (1):-10mV, (2):-25mV

    12:24 - stopped HAPPEX run 7163. ~0.23M events.

    Controlled access was requested for:
    1) Putting the Berilium Oxide optic foil that had fallen off its place yesterday evening back in correct position.
    2) Change units in Drift Chambers electronics.

    12:30 - HallA is surveyed as a preperation to controlled access.

    12:30 - Target polarization measurement: 51.7%

    13:25 - Controlled access approved, except for the target region, which was not surveyed yet.

    14:00 - Cosmic run was stopped due to jumper adjustments by Jack Segal.

    14:30 - BeO optic foil position was fixed by replacing its holder (the old one melted).

    ~15:20 - Back to beam permit.

    Checks performed with an empty target.
    Raster spot looks fine (2x2 mm^2).
    Thresholds were set back to their values for production mode (0):-320mV, (1):-25mV, (2):-145mV.

    15:48 - Start production run