DISTRIBUTION FUNCTION СOMPUTATION FOR SPHERICAL PARTICLES SIZE ON THE BASIS OF SMALL ANGLE X-RAY SCATTERING

E. . Ukhanova, A. V. Smirnov, B. . Fedorov


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Abstract

The method for distribution function computation of the spherical particles size is evaluated on the model curves. This method is based on the direct integral transformation of the entire small angle X-ray scattering indicatrix. The efficiency of the method is confirmed, its resistance to the statistical noise is tested and the distortion caused by the limitation of the experimental scattering curve is estimated. Experimental curves of small angle scattering are obtained for the composite materials formed by nanosized diamond particles in pyrocarbon matrix. The distribution function of nanoparticles size is calculated by means of this method. The correlation between the distribution function and the thickness of the pyrocarbon layer is found.


Keywords: function of size distribution, nanosized diamond particles in pyrocarbon matrix, small angle X-ray scattering.
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