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Window Area Effects in the Detector Efficiency for Source Excited EDXRF Geometries

Published online by Cambridge University Press:  06 March 2019

J.M.F. dos Santos  and
Benilde E.O. Costa
J.M.F. dos Santos
Affiliation:
Physics Department University of Coimbra 3000 Coimbra Portugal
Benilde E.O. Costa
Affiliation:
Physics Department University of Coimbra 3000 Coimbra Portugal
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Abstract

The efficiency dependence on detector window area for three different geometries of source excited energy dispersive X-ray fluorescence (EDXRF) analysis systems are calculated using the Monte Carlo method. Two typical samples (coal and oil) are considered for discussion. The results show that the efficiency is affected mainly by geometric factors: source-to-sample distance and absorption of the exciting X-rays; fluorescent photon self-absorption has a much smaller effect.

Type
VII. XRF Techniques, Instrumentation and Mathematical Models
Information
Advances in X-Ray Analysis , Volume 31: Thirty-Sixth Annual Conference on Applications of X-ray Analysis, August 3-7, 1987 , 1987 , pp. 455 - 459
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

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