We Can Figure This Out.org
Virtual Lab: Scanning Electron Microscope (SEM)
University of Virginia
             
 
© 2003-Present, John C. Bean
 
Now let's put everything together to see how a magnified image of the sample is formed.

But first, let's simplify and pull back a little so that we can see better.

From the final lens, the beam will emerge to strike our "V" shaped target. Electrons will be collected and multiplied by the detector. We then want to create a magnified image of the target on the CRT monitor.

 
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