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Toroidal Monochromators in Hybrid XRF System Improve Effectiveness of EDXRF Tenfold

Published online by Cambridge University Press:  06 March 2019

Thomas C. Furnas Jr. ,
Gordon S. Kuntz  and
Richard E. Furnas
Thomas C. Furnas Jr.
Affiliation:
Molecular Data Corporation 2869 Scarborough Road, Cleveland, Ohio 44118
Gordon S. Kuntz
Affiliation:
Sherwin-Williams Company P. O. Box 6027, Cleveland, Ohio 44101
Richard E. Furnas
Affiliation:
Cornell University, Dept. of Mathematics Ithaca, New York 14850
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Extract

Our objectives in Instrument design & development are to improve the QUALITY OF THE DATA which can be obtained and presented to a computer system for analysis and to explore the corresponding choices which such improved data quality allows.

In usual EDXRF systems, the detector views the entire scattered and fluorescence radiation from a sample illuminated either by a direct beam or by a secondary target. In either case, the beam may be filtered before it strikes the specimen. Most efforts to mono-chromatize the exciting radiation or to reduce the background under the fluorescent peaks from the sample result in (a) decreases in X-ray flux available for excitation, (b) significant increases in power expended in the X-ray tube, or (c) extremely close coupling of the system components. These are NOT THE ONLY CHOICES AVAILABLE.

Type
I. XRF Detectors and XRF Instrumentation
Information
Advances in X-Ray Analysis , Volume 25: Thirtieth Annual Conference on Applications of X-ray Analysis, August 3-7, 1981 , 1981 , pp. 59 - 62
Copyright
Copyright © International Centre for Diffraction Data 1981

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References

1. Furnas, T. C., Jr., Lambert, M. C., and Furnas, R. E., “Use of toroidal monochromators in a hybrid XRF system to obtain increased effectiveness ratios”, Transactions of Fifth Symposium on X- and Gamma Ray Sources and Applications”, in special issue of Huclear Instruments and Methods (in press) (1982) (Includes an additional 25 references).Google Scholar
2. Kuntz, G. S. and Towns, R. L. R., “Determination of lead in paint by EDXRF spectrometry”, to be published.Google Scholar
3. Kuntz, Gordon S., Ph. D. Thesis, Cleveland State University, Cleveland, Ohio (1981).Google Scholar