Low-voltage electron microscope

A Low-voltage electron microscope (LVEM) is an electron microscope which operates in transmission mode at accelerating voltages of a few kiloelectronvolts (keV) or less. By contrast, high-voltage transmission electron microscopes use accelerating voltages in the range of 80-1000 keV. While the architecture of these devices is very similar to a conventional transmission electron microscopes, they have a few key differences that enable them to take advantage of low voltage electron sources, but trading off many advantages of higher voltage operations, including higher resolution and the possibility of electron energy-loss spectroscopy (EELS), etc.

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