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With a neat diagram explain construction and working of Scanning electron microscope.
written 6.2 years ago by gravatar for vermavarsha432 vermavarsha432 • 1.0k modified 4.9 years ago by gravatar for sanketshingote sanketshingote • 100
advanced engineering physics
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written 6.2 years ago by gravatar for vermavarsha432 vermavarsha432 • 1.0k

scanning electron microscope is an improved model of an electron microscope. SEM is used to study the three dimensional image of an specimen. enter image description here

PRINCIPLE

when the accelerated primary electrons strikes the sample,it produces secondary electrons, these secondary electrons are collected by a positive charged electron detector which in turns gives …

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