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User name Ramesh
Log entry time 23:45:39 on January 29,2011
Entry number 217258
keyword=Halo rate with and without target at 30 uA
Attached figure shows how halo monitors behave with and without the target. The left side band in the figure is when the target was in out position (no target) and the right side band is that when we had 4% down stream aluminum target. The beam current during both bands was 30 uA. Though all halo rates are higher when the target is in than without it. Halo 7 (g0rate7 in the figure) is way low when there is no target, and it is very much high in the presence of the target.
FIGURE 1
