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X-ray absorption spectroscopy
Additional recommended knowledge
X-ray absorption spectra are obtained by tuning the photon energy in a range where bound electrons can be excited (0.1-100 keV photon energy). This technique is usually applied at synchrotron radiation facilities providing intense and tunable x-ray beams.
Different acronyms are currently used in the literature depending on the particular applications therefore more details on methods, technique, and significance can be found searching XAFS (X-ray Absorption Fine Structure) or EXAFS (Extended XAFS).
XAS is an experimental technique used in different scientific fields including molecular and condensed matter physics, material science, chemistry, earth science, biology, and more. In particular, its unique sensitivity to the local structure, as compared to x-ray diffraction, have been exploited for studying:
An informative account about the history of XAS and EXAFS (originally called Kossel's structures) is given in the paper "A History of the X-ray Absorption Fine Structure} by R. Stumm von Bordwehr", Ann. Phys. Fr. vol. 14, 377-466 (1989) (author's name is C. Brouder).
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "X-ray_absorption_spectroscopy". A list of authors is available in Wikipedia.|