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Published December 1, 1962 | public
Journal Article Open

Characteristic Modified X-Ray Scattering

Das Gupta, K.

Abstract

The spectroscopic analysis of the scattered x rays from lithium, lithium oxide, lithium fluoride, beryllium, and boron irradiated by copper target radiation establishes the existence of sharp characteristic modified lines on the longer wavelength side of the primary beam. This is a new type of incoherent x-ray scattering. The K term values of lithium, beryllium, and boron and the L1 term value of fluorine in lithium fluoride have been calculated from the observed modified lines and these are 58.1, 113.6, 199.0, and 40.6 eV, respectively. Taking into account the limits of error in these experiments, the term values obtained by this new method agree well with the values obtained by Skinner by the method of soft x-ray spectroscopy. Evidence obtained until now about the angular dependence of intensity of the newly observed modified lines brings up several interesting points helping to understand the particular process of scattering, and these points have been discussed.

Additional Information

©1962 The American Physical Society Received 19 April 1962 The author is grateful to Professor Pol Duwez for providing him with the research facilities in his laboratory and for his great interest in the particular problem and his helpfulness. Thanks are due to Dr. F. S. Buffington for going through the manuscript. The author is grateful to Professor J. W. M. DuMond for his encouragement and to Professor R. P. Feynman for valuable discussions. Work jointly sponsored by the U.S. Atomic Energy Commission and the Office of Naval Research.

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Created:
August 21, 2023
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October 13, 2023