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Low-voltage electron microscope
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Low-voltage electron microscope : ウィキペディア英語版
Low-voltage electron microscope

Low-voltage electron microscope (LVEM) is an electron microscope which operates at accelerating voltages of a few kiloelectronvolts or less. While the low voltage electron microscopy technique will never replace conventional high voltage electron microscopes, it is quickly becoming appreciated for many different disciplines.
Low voltage imaging in transmitted electrons is possible in many new scanning electron microscopes, equipped with transmitted electron detector.
Low cost alternative is dedicated table top low voltage transmission electron microscope.〔(LVEM5 from Delong America )〕 While its architecture is very similar to a conventional transmission electron microscope, it has a few key changes that enable it to take advantage of a 5 keV electron source, but trading off many advantages of higher voltage operations, including higher resolution, possibility of X-ray microanalysis and EELS, etc... Recently a new low voltage transmission electron microscope has been introduced that operates at variable voltage ranges between 6-25kV.〔(LVEM25 from Delong America )〕
==Advantages==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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