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    User name Kiadtisak

    Log entry time 22:59:24 on August28,2009

    Entry number 286684

    keyword=HAPPEX detector's footprint studies (Right arm)

    These are the plots of run 4402. Figure 1 is the plot of R.tr.d_y:R.tr.d_x without any cuts. The figure 2 is the same plot but apply the cut on R.cer.a[6]>540 and put lines, which define the footprint. Also, after trying to vary L.cer.a[6], I found that if it's less than 540, there are some events outside the footprint and doesn't form a straight edge. For L.cer.a[6]>540, most of events fall within the footprint but again, doesn't form a stright edge.

    FIGURE 1

    FIGURE 2