electron probe x-ray microanalysis
Also found in: Acronyms.
electron probe x-ray microanalysis[i¦lek‚trän ‚prōb ¦eks‚rā ‚mī·krō·ə′nal·ə·səs]
An analytical technique that uses a narrow electron beam, usually with a diameter less than 1 millimeter, focused on a solid specimen to excite an x-ray spectrum that provides qualitative and quantitative information characteristic of the elements in the sample. Abbreviated EPXMA.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.