X-ray absorption near edge structure

synonym: X-ray absorption near edge fine structure
acronym: XANES
https://doi.org/10.1351/goldbook.08768
Measurement method of X-ray absorption analysis in which the fine structure of the adsorption spectrum in the range \(\pu{30 eV}\) below to \(\pu{50 eV}\) above the absorption edge is used to measure parameters describing the chemical state, coordination environment, and local geometry distortion for the X-ray absorbing atom.
Notes:
  1. The method uses synchrotron radiation.
  2. The wavelength of the emitted photoelectrons is longer than the interatomic distances between the absorbing atom and its nearest neighbours.
See also: near edge X-ray absorption fine structure
Source:
PAC, 2021, 93, 69. (Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)) on page 106 [Terms] [Paper]
Citation: 'X-ray absorption near edge 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.08768 RIS BibTex EndNote
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