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User name M Jones
Log entry time 00:33:12 on March 02, 2006
Entry number 164701
keyword=Summary of beam optics match
Jay Benesch performed the beam optics match. It improved the rate at the
compton by educing it around 200Hz/uA. The intrinsic beam spot at 4a and 4b
was about 100x140 . The chamber current with the nomimal beam positions
with reference cell was reduced from 3.5uA to 2.5uA. Did a check by moving
the raster beam in a 1mm square pattern around the nominal position. The
chamber current and trigger rate were unchanged.