alexa TheScherrer Formula for I-Ray Particle Size Determination
Nutrition

Nutrition

Vitamins & Minerals

Author(s): A L Patterson

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An exact derivation of the Scherrer equation is given for particles of spherical shape, values of the constant for half-value breadth and for integral breadth being obtained. Various approximation methods which have been used are compared with the exact calculation. The tangent plane approximation of v. Laue is shown to be quite satisfactory, but some doubt is cast on the use of approximation functions. It is suggested that the calculation for the ellipsoidal particle based on the tangent plane approximation will provide a satisfactory basis for future work.

This article was published in Physical Review and referenced in Vitamins & Minerals

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