Monte Carlo simulation of the matrix and geometrical effects in x‐ray microfluorescence analysis of individual particles

Abstract

A Monte-Carlo model was developed for the simulation of x-ray fluorescence (XRF) from spherical micro-samples including primary and secondary fluorescence events. The interelement and geometrical effects in XRF microanalysis of individual mineral grains were studied. Calculations were performed for grains of Fe,O, containing minor concentration of Ti and for ZaS grains. The results of calculation indicated that the intensities of excited characteristic x-rays depend strongly on the diameter of the irradiated particle, the incident microbeam profile and its diameter.

Quantitative X-ray fluorescence analysis of samples of less than ‘infinite thickness’: Difficulties and possibilities

“…Lankosz [91] developed a MC model for the analysis of spherical micro-samples including geometrical effects and primary and secondary fluorescence. Calculations were performed for Fe 2 O 3 and ZnS particles.…”