Search results
Extended X-ray absorption fine structure ( EXAFS ), along with X-ray absorption near edge structure ( XANES ), is a subset of X-ray absorption spectroscopy ( XAS ). Like other absorption spectroscopies, XAS techniques follow Beer's law. The X-ray absorption coefficient of a material as a function of energy is obtained by directing X-rays of a ...
EXAFS (ang. Extended X-Ray Absorption Fine Structure) – metoda wykorzystania subtelnej struktury blisko progu absorpcji promieniowania X, służąca do wyznaczania struktury fazy skondensowanej. Metoda ta umożliwia przeprowadzanie badań materiałów amorficznych.
The term EXAFS refers specifically to the oscillatory behaviour in core-level XAS above about 10–20 eV of an absorption edge (Rehr & Albers, 2000). In its early history, EXAFS was only qualitatively understood (Stumm von Bordwehr, 1989).
30 sty 2023 · EXAFS (Extended X-ray Absorption Fine Structure) and XANES (X-Ray Absorption Near Edge structure) are regions of the spectrum obtained from XAS(X-ray Absorption Spectroscopy). EXAFS corresponds to the oscillating part of the spectrum to the right of the absorption edge(appearing as a sudden, sharp peak), starting at roughly 50 eV and extending ...
10 lis 2023 · EXAFS refers to modulations in the X-ray absorption spectrum caused by photoelectron waves scattering off nearby atoms and is a well-established technique to probe local structure as well as ...
The X-ray Absorption Fine Structure (XAFS<?index value="XAFS"?>) with its subregions X-ray Absorption Near-edge Structure (XANES<?index value="XANES"?>) and Extended X-ray Absorption Fine Structure (EXAFS<?index value="EXAFS"?>) is a powerful tool for the structural analysis of materials, which is nowadays a standard component of research ...
A textbook by Boon K. Teo on Extended X-Ray Absorption Fine Structure (EXAFS), a technique for structure studies of various systems. Learn the theory, data acquisition, analysis, and applications of EXAFS with examples and references.
