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Monte Carlo Simulations of XRF Intensities in Samples Containing a Dispersed Phase

Published online by Cambridge University Press:  06 March 2019

B. A. R. Vrebos  and
J. A. Helsen
B. A. R. Vrebos
Affiliation:
Dept. Metallurgy and Materials Engineering Katholieke Universiteit Leuven, De Croylaan 2 3030 Heverlee - Belgium
J. A. Helsen
Affiliation:
Dept. Metallurgy and Materials Engineering Katholieke Universiteit Leuven, De Croylaan 2 3030 Heverlee - Belgium
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Extract

For the analysis of solid samples, such as alloys, by means of XRF, one normally assumes that either the samples are completely homogeneous, or that heterogeneity effects can be neglected or cancelled out. The authors have studied this effect by means of Monte Carlo Simulations. Two particular geometries have been studied. For the first simulations the sample consisted of alternating lamellae of different composition, perpendicular to the irradiated surface. Later, the more realistic distribution of a spherical dispersed phase in a matrix was simulated.

Type
II. Mathematical Models and Computer Applications in XRF
Information
Advances in X-Ray Analysis , Volume 28: Thirty-Third Annual Conference on Applications of X-ray Analysis, July 30 - August 3, 1984 , 1984 , pp. 37 - 38
Copyright
Copyright © International Centre for Diffraction Data 1984

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References

1. Vrebos, B. and Helsen, J.A., “Ab initio calculations of XRF intensition in non-homogeneous matrices”, Spectrochim. Acta, 38B:835 (1983)Google Scholar
2. Helsen, J.A. and Vrebos, B.A.R., “Monte Carlo Simulations of XRF intensities in non-homogeneous matrices”, Spectrochim. Acta, 39B:751 (1984)Google Scholar
3. Helsen, Jef A. and Vrebos, Bruno A.R., “Multi-phase solids and the intensity-concentration relationship in X-ray fluorescence analysis a Monte Carlo Simulation”, Analyst, 109:295 (1984)Google Scholar