When increased raster from 5.2X6.5 to 6X7, the rates increase approx. 50%

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User name ycwang

Log entry time 20:05:35 on March 7,2009

Entry number 265170

keyword=When increased raster from 5.2X6.5 to 6X7, the rates increase approx. 50%

When increased raster from 5.2X6.5 to 6X7, the rates increase approx. 50%. It happened in the same current 12uA and the same 3He target, the rate goes from 12K to 17K. Since we did not observe the beam spot in BeO target, so we halog the situation to RC.