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    User name M Friend

    Log entry time 16:53:55 on November 17, 2009

    Entry number 300585

    This entry is a followup to: 300462


    keyword=Compton beamline shielding

    The 1 inch of tungsten was removed from the Compton photon beamline. It was replaced by 8mm of lead taped to the downstream side of the collimator (away from the front of the crystal). This is in addition to the 1mm of lead in the holder on the upstream side of the collimator, so we have a total of 9mm of lead shielding. Like this we will run the Compton at low current only.

    A copy of this log entry has been emailed to: kdp2c@virginia.edu,souder@physics.syr.edu,bquinn@cmu.edu