How Does an Electron Microscope Work?

Answer

Electron Microscopes (EMs) function exactly as their optical counterparts except that they use a focused beam of electrons instead of light to 'image' the specimen and gain information as to its structure and composition. A stream of electrons is formed and accelerated toward the specimen using a positive electrical potential. The stream is confined and focused using metal apertures and magnetic lenses into a thin, focused, monochromatic beam. Interactions occur inside the irradiated sample, affecting the electron beam.
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How Does an Electron Microscope Work?
Electron microscopes can generally be found in two variations. A transmission electron microscope (TEM) is solely capable of producing two-dimensional images. A scanning electron microscope (SEM), on the other hand, can produce high-resolution... More »
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An electron microscope works by using a beam of extremely energetic electrons. In doing so, an electron microscope is able to closely examine specimen on a very fine scale. You can find more information here: http://www.unl.edu/CMRAcfem/em.htm
Q&A Related to "How Does an Electron Microscope Work"
The electron microscope was invented in 1931 by Germans Ernst Ruska and Max Knoll. Ernst Ruska later received Nobel Prize for his work in 1986. Look here for more information: http:
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Optical Microscope Limits The magnification limit of optical microscopes is about one thousand times with a resolution of about one thousandth of a millimeter. These are the practical
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A electron microscope uses beams of highly charged, energetic, electrons, due to these electrons this type of microscope can magnify the object it is looking at by two thousand times
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n. Any of a class of microscopes that use electrons rather than visible light to produce magnified images, especially of objects having dimensions smaller than the wavelengths of
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An electron microscope uses a beam of electrons, shone on a microscope slide, to magnify a specimen image. The beam of electrons resolves the images finely to ...
An electron microscope is a microscope that used an image that is electronically magnified with beams of electrons. This gives a wider range of viewing, up to ...
Electron microscopes are scientific instruments that use a beam of highly energetic electrons to examine objects on a very fine scale. Electron microscopes were ...
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