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X-Ray Fluorescence Experiments with Polarized X-Rays*

Published online by Cambridge University Press:  06 March 2019

R. H. Howell ,
W. L. Pickles  and
J. L. Cate Jr.
R. H. Howell
Affiliation:
Lawrence Livermore Laboratory, Univ. of California, Livermore, California 94550
W. L. Pickles
Affiliation:
Lawrence Livermore Laboratory, Univ. of California, Livermore, California 94550
J. L. Cate Jr.
Affiliation:
Lawrence Livermore Laboratory, Univ. of California, Livermore, California 94550
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Abstract

Two methods of obtaining polarized x-rays for fluorescence experiments are discussed. Compton scattering from a low-Z scatterer is the usual method used in such experiments. The polarization of x-rays undergoing anomalous Borrmann transmission in a dislocation-free crystal is also described and preliminary results are presented. Approximate expressions, useful for comparing scatter-polarizing systems, are derived for the dependence of scatter rejection and fluorescent efficiency on two scattering-system parameters: the thickness of the scattering polarizer and the geometric limit to solid angles and angular divergences in the system.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 18: Twenty-Third Annual Conference on Applications of X-ray Analysis, August 7-9, 1974 , 1974 , pp. 265 - 277
Copyright
Copyright © International Centre for Diffraction Data 1974

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Footnotes

*

Work performed under the auspices of the U.S. Atomic Energy Commission.

References

1. Young, J. C., 1973 Pacific Conf. on Chemistry and Spectroscopy. San Diego, CA, Nov. 1973.Google Scholar
2. Dzubay, T. G. Jarrett, B. V., and Jaklevic, J. M., “Background Reduction in X-Ray Fluorescence Using Polarization,” Nucl. Instr. and Meth. 115, 297 (1974).Google Scholar
3. Howell, R. H., Cate, J. L., and Pickles, W. L., X-Ray Polarization Studies, Lawrence Livermore Laboratory, Rept. UCRL-50007-73-2 (1974).Google Scholar
4. Pickles, W. L. and Cate, J. L. Jr., “Quantitative Nondispersive X-Ray Fluorescence Analysis of Highly Radioactive Samples for Uranium and Plutonium Concentration,” Advances in X-Ray Analysis 17, 337 (1973).Google Scholar
5. Kirkpatrick, P., “Double Scattering of Polarized X-Rays,” Phys. Rev. 52, 1201 (1937).Google Scholar
6. Cole, H., Chambers, F. W., and Wood, C. G.,“X-Kay Polarizer,” J. Appl. Phys. 32, 1942 (1961).Google Scholar
7. Pickles, W. L. and Elliott, J. H., Fiscal Year 1973 Summary Report for the LSAEC Division of Applied Technology — Environmental Analysis, Lawrence Liverrnore Laboratory, Rept. UCRL-51422 (1973).Google Scholar