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    User name jmaxwell

    Log entry time 09:15:38 on April 16, 2012

    Entry number 375303

    keyword=Beam Time Lost to Operator Error

    It seems that the target move which supposedly took place last night
    after 9pm didn't happen.  We took several hours of data on the dummy
    target when we should have been taking production.  Unfortunately, this
    was an error which should have been caught immediately.
    
    The procedure on the wiki for moving the target clearly states "Watch the
    motion on the video screen to your upper left".  This was also covered in
    the target training.  Last night the target computer was in the process
    of crashing, so although the move was requested by the operator in the
    GUI, it didn't happen.  If the operator had watched the screen, the lack
    of movement would have been caught.
    
    In addition, the 3rd operator should have seen that the rates were not
    correct.  The rates were dutifully written into the paper logbook, but
    the rate for the supposed ammonia runs was actually lower than the rates
    on the dummy target.  
    
    Fortunately, the next shift caught the problem and it was fixed quickly.
     We appreciate all your efforts, and I know anyone can make errors like
    these.  But, please pay attention to what you're doing while on shift;
    avoid errors and double check yourself.  The experiment depends on your
    vigilance. 
    
    


    A copy of this log entry has been emailed to: slifer, jpchen