Abstract
The theoretical fundamentals of extended X-ray absorption fine-structure (EXAFS) spectroscopy are discussed. This method makes it possible to obtain short-range order parameters for multicomponent amorphous and quasicrystalline media with a high accuracy. Methods of analysis of EXAFS spectra with allowance for the effects of multiple scattering are described. Experimental setups implementing EXAFS spectroscopy on synchrotron radiation beams are considered and the requirements on monochromatization of radiation beams are given. A brief description of the energy-dispersive EXAFS spectrometer at the Kurchatov Synchrotron Radiation Source is given. The results of experimental investigations of tungsten and molybdenum oxides and fullerides are reported.
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