Abstract

An alternative approach was proposed to calculate the parameters of a virtual monochromatic source in the excitation of X-ray fluorescence of multicomponent samples with polychromatic radiation. Analytic expressions were obtained for the calculation of the equivalent wavelength of bremsstrahlung and mixed excitation spectrum for samples of arbitrary composition and thickness. The efficiency of the developed approach in quantitative X-ray fluorescence analysis with consideration for matrix effects was demonstrated.

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