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Contrast mechanisms in SEM imaging of graphene

Posted: 04 Feb 2013  Print Version  Bookmark and Share Subscribe 

Keywords:scanning electron microscopes  digital images  display unit 

[Summary of tips] Modern scanning electron microscopes (SEMs) all employ digital scan controls, digital signal acquisition and processing of grayscale digital images. In a working digital SEM, high energy electrons are focused into a fine beam which rasters across the surface of a specimen pixel by pixel in incremental steps. A complex beam/spec......
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