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    User name pzhu

    Log entry time 22:16:54 on April20,2012

    Entry number 376768

    keyword=[target]largest slow raster size

    after tuning beam and centering beam tonight, we found that when in the 1.8cm(780mV) slow raster size(without fast raster) it hit both up and down side beampipe, 1.725cm(750mV) is clean. so the maximum total raster size is 1.725cm if we don't want to hit the beampipe. this is a problem for polarization I don't know if it is ok.


    FIGURE 1