Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-27T06:39:15.708Z Has data issue: false hasContentIssue false
  • English
  • Français

An Evaluation of Correction Algorithms, Using Theoretically Calculated Intensities

Published online by Cambridge University Press:  06 March 2019

Bruno A. R. Vrebos  and
J. A. Helsen
Bruno 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)
Get access

Extract

Several correction algorithms (Lachance & Traill (L-T), Rasberry & Heinrich (R-H), Lachance & Claisse (L-C) and Claisse & Quintin (C-Q) have been inter compared. All these algorithms assume that the effects of the matrixelements can be added in a linear way. Tertian, however, has shown that this is perfectly valid only when absorption is the only interelement effect to be taken into account. When enhancement is involved, corrections for crossed-effects are necessary. We have also evaluated the application of crossed-effect correction. Calculations were done, using theoretically calculated relative intensities. Influence coefficients were calculated by a regression method.

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. 31 - 35
Copyright
Copyright © International Centre for Diffraction Data 1984

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Lachance, G.R. and Traill, R.J., “A practical solution to the matrix problem in X-ray analysis”, Can. Spectrosc., 11:43 (1966).Google Scholar
2. Rasberry, S.D. and Heinrich, K.F.J., “Calibration for interelement effects in X-ray fluorescence analysis', Anali Chem., 46:81 (1974).Google Scholar
3. Lachance, G.R. and Claisse, F., “A comprehensive alpha coefficient algorithm”, Adv. X-Ray Anal., 23:87 (1980)Google Scholar
4. Claisse, F. and Quintin, M., “Generalization of the Lachance-Traili method for the correction of the matrix effect in X-ray fluorescence analysis”, Can. Spectrosc., 12:129 (1967)Google Scholar
5. Tertian, R., “An accurate coefficient method for X-ray fluorescence analysis”, Adv. X-Ray Anal., 19:85 (1976)Google Scholar
6. Tertian, R., “Concerning interelemental crossed-effects in X-ray fluorescence analysis”. X-Ray Spectrom., 3:102 (1974).Google Scholar
7. Criss, J.W., “NRLXRF”, COSMIC Program and documentation DOD-65, University of Georgia, Athens Ga 30602Google Scholar
8. Kuczumov, A., “The concentration correction equations as a consequence of the Shiraiwa and Fujino equation” X-Ray Spectrom., 11:112 (1982)Google Scholar
9. Rousseau, R.M., “Fundamental algorithm between concentration and intensity in XRF analysis”, X-Ray Spectrom, 13–115 (1984)Google Scholar
10. Vrebos, B.A.R and Helsen, J.A., “Monte Carlo Simulations of XRF intensities in samples containing a dispersed phase”, Adv. X-Ray Anal., 28:37 (1985)Google Scholar