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    User name lkaufman

    Log entry time 00:00:49 on September27,2005

    Entry number 156124

    keyword=Scan comparisons for low density 4He runs

    Run 5401 - 80% target density
    Run 5406 - 60% target density
    Run 5408 - 40% target density
    Here is a plot showing the peak height vs. slice for the profile scans taken 
    with different target densities.  The ratio between the shoulder and peak 
    height for each scan is ~70%, so the ratio does not depend on the target 
    thickness (also 70% at nominal target density).  The peak does look like it may 
    broaden as the target density decreases (see green plot - run 5408).

    FIGURE 1