Explain the working of Scanning Electron Microscopy (SEM) with suitabl

Question

Explain the working of Scanning Electron Microscopy (SEM) with suitable diagram. List outs its advantages and applications.

23 Dec 2024

Answer :

Word Count : 269

Scanning Electron Microscopy (SEM) is a powerful technique used to examine the surface structure of a sample at high magnifications, typically in the range of nanometers. The working principle of SEM involves a focused beam of electrons that interacts with the sample's surface. These electrons are emitted from a heated filament, usually a tungsten or field-emission gun, and accelerated towards the sample. The electron beam scans the ______ _____ _____ _____ ________ ______ _______ _________ ____ ____.
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