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A Comprehensive Alpha Coefficient Algorithm
Published online by Cambridge University Press: 06 March 2019
Abstract
An algorithm is proposed as a model that describes the intensity concentration relation over a wide concentration range in binary and more complex systems involving absorption and enhancement. All the influence coefficients can be determined from fundamental parameter equations. Terms containing product of two weight fractions are always negligible in pure absorption cases, are often negligible in absorption/weak enhancement cases and are necessary but small in strong absorption/strong enhancement situations.
Once the magnitude of the coefficients is known, the range of application of the one- or two-coefficient models can be established with certitude.
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- Mathematical Methods in XRF
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- Copyright © International Centre for Diffraction Data 1979
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