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Structural analysis of amorphous silica by PDF analysis

AppNote B-XRD1112: Structural analysis of amorphous silica by PDF analysis

Background

PDF analysis is a method used to derive atomic distances and atomic coordination numbers from X-ray diffuse scattering patterns. Furthermore, Reverse Monte Carlo (RMC) simulation can determine the amorphous structure from the observed PDF profile. The RMC simulation is a method to construct a structure model by fitting the simulated PDF profile to the observed PDF profile by randomly moving atoms in a cell of chosen size.

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