Author: Maxim E. Korshunov

0000000000033771

AUTHOR

Maxim E. Korshunov

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New Regularization Method for EXAFS Analysis

2007

As an alternative to the analysis of EXAFS spectra by conventional shell fitting, the Tikhonov regularization method has been proposed. An improved algorithm that utilizes a priori information about the sample has been developed and applied to the analysis of U L3‐edge spectra of soddyite, (UO2)2SiO4⋅2H2O, and of U(VI) sorbed onto kaolinite. The partial radial distribution functions g1(UU), g2(USi), and g3(UO) of soddyite agree with crystallographic values and previous EXAFS results.

Tikhonov regularizationX-ray spectroscopyExtended X-ray absorption fine structureAbsorption spectroscopyChemistryRegularization (physics)Analytical chemistryCrystal structureSpectroscopySpectral lineAIP Conference Proceedings

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