extended X-ray absorption fine structure (EXAFS) 

https://doi.org/10.1351/goldbook.E02280
Structure in X-ray absorption spectra remote from the edge and extending to higher energies, due mainly to the scattering of the expelled electron by neighbouring atoms. Structure closer to the absorption edge is sometimes called near-edge X-ray absorption fine structure (NEXAFS).
Source:
PAC, 1991, 63, 735. (Nomenclature, symbols, units and their usage in spectrochemical analysis - VIII. Nomenclature system for X-ray spectroscopy (Recommendations 1991)) on page 738 [Terms] [Paper]
Citation: 'extended X-ray absorption fine structure' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.E02280 RIS BibTex EndNote
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Last revised: February 24, 2014