Lightning and the Electron Microscope

the scanning electron microscope

it is only thirteen years since the scanning electron microscope has been available commercially. yet, even in this short period of time, this instrument has been a powerful tool in the investigation of topography, electrical and magnetic properties, crystal structure, cathodoluminescent characteristics etc. of solid specimens. today, this type of microscope has opened its place alongside the c...

cellular behavior and scanning electron microscope evaluation of pro-root mta, root mta and modified mta on fibroblast l929

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Electron Microscope

Origin of the Electron Microscope.

In 1878, Ernst Abbe (1) proved that the resolution of the optical microscope is limited by the wavelength of light. This meant that even when immersion optics and ultraviolet light are used, the smallest detail that can ever be resolved optically is of the order of 100 millimicrons, or 10 angstroms. No means were conceived of resolving finer detail until two discoveries were made: (i) the wave ...

The Scanning Confocal Electron Microscope

The Scanning Confocal Electron Microscope, is an instrument which permits the observation and characterization of sub-surface structures of thick, optically opaque materials at nanometer level resolutions. The instrument merges the capabilities of the scanning, transmission and x-ray microscopes, and achieves unprecedented resolutions in optically dense materials, by implementing the technology...