The scanning electron microscope (SEM) is a type of electron microscope that images the sample surface by scanning it with a high-energy beam of electrons in a raster scan pattern. The electrons interact with the atoms that make up the sample producing signals that contain information about the sample's surface topography, composition and other properties such as electrical conductivity.His tory · Scanning process and ... · Sample preparation · Detection of ...

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SEM was founded in Missoula, MT in 1977 as a nonprofit research and educational organization. Our mission is to perform basic and applied research on topics concerning wildland ...