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    User name johna

    Log entry time 01:45:45 on March 5,2006

    Entry number 165249

    Followups:

    keyword=Results of raster-size scan

    Rates, currents, and rate/current for the raster scan:


    
*this run taken with wrong y-position*
    
3x3 mm (run 2655): T3rate=15.9 Hz, I=1.1568, rate/curr=13.7(1)
    

    
*These runs taken at correct beam position
    
3x3 mm (run 2658): T3rate=13.1 Hz, I=1.1924, rate/curr=11.0(1)
    
4.5x4.5 (run2656): T3rate=13.8 Hz, I=1.2105, rate/curr=11.4(1)
    
6x6 mm (run 2657): T3rate=13.8 Hz, I=1.1922, rate/curr=11.6(1)

    rate/curr has an uncertainty of about 0.1 for all runs, from statistics and the fact that the T3 rate is rounded to 1 decimal place in the end of run file.