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Use of Primary Beam Filtration in Estimating Mass Attenuation Coefficients by Compton Scattering

Published online by Cambridge University Press:  06 March 2019

B. H. O'Connor  and
W–J. Chang
B. H. O'Connor
Affiliation:
School of Physics and Geosciences Western Australian Institute of Technology Bentley, Western Australia6102
W–J. Chang
Affiliation:
School of Physics and Geosciences Western Australian Institute of Technology Bentley, Western Australia6102
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Abstract

Mass attenuation coefficients (MACs) are frequently estimated over a range of wavelengths in x-ray spectrometry from the intensity of the Compton peak IC associated with a prominent tube line. The MAC μλ at wavelength λ is estimated from the MAC at the Compton wavelength λC with the approximations μλ α μC and μC α 1/IC. Systematic errors may introduce absorption edge bias (AEB) effects into the results, caused by sample components vith absorption edges between λc and λ. A procedure is described which eliminates AEB effects by measuring IC using emission radiation from a primary beam filter.

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. 25 - 30
Copyright
Copyright © International Centre for Diffraction Data 1984

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