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electron microprobe |
Also found in: Acronyms, Wikipedia, Hutchinson | 0.03 sec. |
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electron microprobe [i′lek‚trän ′mī·krō‚prōb] (physics) An x-ray machine in which electrons emitted from a hot-filament source are accelerated electrostatically, then focused to an extremely small point on the surface of a specimen by an electromagnetic lens; nondestructive analysis of the specimen can then be made by measuring the backscattered electrons, the specimen current, the resulting x-radiation, or any other resulting phenomenon. Also known as electron probe. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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To determine what kind of stone the axes were made of, Lu used X-ray diffraction, scanning electron microscopy, and electron microprobe analysis. With the availability of the first commercially produced electron microprobe instruments in the early 1960s, x-ray microanalysis became a significant analytical technique in the Analytical Chemistry Division at NIST (then called the National Bureau of Standards). The cake is examined for inclusions by metallographic and constitutional analysis that may include optical, electron microprobe and energy dispersive techniques. |
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