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X-Ray Fluorescence Analysis for Sodium, Fluorine, Oxygen, Nitrogen, Carbon, and Boron*

Published online by Cambridge University Press:  06 March 2019

Burton L. Henke
Burton L. Henke*
Affiliation:
Pomona College Clarentont, California
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Abstract

Optimized vacuum spectrographic measurement of low-energy fluorescence has been found to yield counting rates and peak-to-background ratios which are enough to permit the extension of fluorescence analysis for elementary chemistry into the light-element range—sodium through boron. This is accomplished with an efficient, demountable ultrasoft X-ray source, with close coupling among source, crystal, and detector, with KAP and multilayered stearate analyzers, and with, optimized flow-propordonal counting. Specific methods for achieving peak-to-background ratios on practical samples containing these light elements are presented. The extension of these methods of light-element analysis with the use of curved long-spaced crystals for X-Ray macroprobe and electron microprobe measurements is discussed. The design and construction of multilayered soap film “crystals” for long-wavelength X-ray analysis is described.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 7: Twelfth Annual Conference on Applications of X-ray Analysis, August 7-9, 1963 , 1963 , pp. 460 - 488
Copyright
Copyright © International Centre for Diffraction Data 1963

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Footnotes

*

Now on leave at the Los Alamos Scientific Laboratory, Los Alamos, New Mexico.

1

This work is supported under a grant from the Office of Scientific Research, U.S. Air Force.

References

References

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