Comment sem4160 SNF 2011-05-04 15:15:32: SEM status

rissman at rissman at
Wed May 4 15:15:33 PDT 2011

I attempted to look at 4 different samples without much luck.  The column is still unstable at this point.  It requires a flash of the tip every few minutes and right after flash the current drops down to ~ 4 uA and requires a flash again.  Perhaps if the current were stable you could get good results.

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