Raith apertures

James Conway jwc at snf.stanford.edu
Thu Jun 5 12:41:24 PDT 2008

I will be in the lab starting about 1:15 - 1:30 and can take a look with 

Grab you session back if you are available.


Yao-Te Cheng wrote:
> Hi James,
> I was using the Raith this morning. I usually use 20KV and the 7.5um 
> aperture for writing. Somehow, I didn't find the 7.5um aperture when I 
> adjusted the gun alignment, and I didn't find the 10um aperture, 
> either. Also, I didn't see any image when I used the 7.5um aperture 
> and got an extremely dim image when using the 10um aperture. I 
> cancelled my session. Could you tell me how I could try to fix this 
> problem next time if I meet this again? Thank you.
> Best regards,
> Yao-Te
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