X-ray absorption fine structure spectroscopy in the energy region from the core-level edge to an energy several hundred $\pu{eV}$ greater.
Notes: - Extended X-ray absorption fine structure results mainly from the single scattering of the photoelectron from surrounding atoms and is exhibited as oscillations in the absorption cross section with increasing photon energy. Analysis of the oscillations provides information, through bond lengths, on the local chemical environment of the emitting atom.
- EXAFS has been used as an alternate term for the superordinate concept of XAFS.
Source:
PAC, 2020, 92, 1781. 'Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)' on page 1790 (https://doi.org/10.1515/pac-2019-0404)