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X-Ray Cross-Sections in Design and Analysis of Non-Dispersive Systems

Published online by Cambridge University Press:  06 March 2019

Benton C. Clark
Benton C. Clark*
Affiliation:
Martin Marietta Aerospace, Denver, Colorado 80201
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Abstract

In designing a radioisotope, energy-dispersive (proportional counter) x-ray fluorescence spectrometer for elemental analysis of geologic specimens, a theoretical framework has been developed to model instrument response. This model is based upon the fundamental physics of x-ray excitation, absorption, and scattering, and employs the most modern available values of the applicable physical constants. The model includes matrix absorption and enhancement effects. By explicitly including scattering in the model and the measurements, element concentrations can be calculated from the shape alone of the x-ray spectrum and the presence of elements having non-observable fluorescences can be detected.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 17: Twenty-Second Annual Conference on Applications of X-ray Analysis, August 22-24, 1973 , 1973 , pp. 258 - 268
Copyright
Copyright © International Centre for Diffraction Data 1973

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References

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