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    User name jpchen

    Log entry time 18:11:50 on March15,2007

    Entry number 196017

    keyword=beam energy spread was too high

    At the begining of the shift, beam trip frequently. MCC took beam away and did some tuning. It became stable when beam was back. But
    Arun Saha noticed that the energy spread was too high (5x10-5). Requested MCC to bring it down (to below 4x10-5). The data taken with
    the large energy spread is not good. Will need to be repeated after
    the spread comes down.


    FIGURE 1