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 30 eV below to 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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