[An application of genetic algorithms to the analysis of EXAFS spectrum].
Extended X-ray absorption fine structure (EXAFS) has been extensively used in the structural study in recent years. But the current methods of analysis EXAFS spectrum is difficult and tedious,demanding either very similar standard samples or the initial parameters near the solution. In this paper, a new technique Genetic Algorithms (GAs), was applied to the analyzing of the EXAFS spectrum,and two spectra of CU samples were investigated by the method. It was found that reasonable results can be obtained by the method only with limiting the initial parameters to a broad range. Comparing the results with those obtained by EXCURVE88, the fitting is superior, and the parameters are reasonable. Therefore, it is proved that the GAs may be a high performance method for the analyzing of the EXAFS spectra.
Shao
X
X
Department of Applied Chemistry, University of Science and Technology of China, 230026 Hefei.
Cui
G
G
Zhao
G
G
D000465:Algorithms; D019143:Evolution, Molecular; D056928:X-Ray Absorption Spectroscopy / Q000379:methods*