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Electron microprobe


What is MICROPROBE? What does MICROPROBE mean? MICROPROBE meaning, definition & explanation


Microprobe analyzes volcanic materials, displays potential for broader applications


Download Electron Microprobe Analysis Cambridge Monographs on Physics


JEOL JEM-F200 Multi-purpose Electron Microscope


Automated XPS Microprobe PHI X-tool - ULVAC-PHI, Inc.

An electron microprobe (EMP), also known as an electron probe microanalyzer (EPMA) or electron micro probe analyzer (EMPA), is an analytical tool used to non-destructively determine the chemical composition of small volumes of solid materials. It works similarly to a scanning electron microscope: the sample is bombarded with an electron beam, emitting x-rays at wavelengths characteristic to the elements being analyzed. This enables the abundances of elements present within small sample volumes to be determined. The concentrations of elements from beryllium to plutonium can be measured at levels as low as 100 parts per million (ppm). Recent models of EPMAs can accurately measure elemental concentrations of approximately 10 ppm.
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