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The Effects of Self-Irradiation on the Lattice of 238(80%)PuO2. II*

Published online by Cambridge University Press:  06 March 2019

R. B. Roof Jr.
R. B. Roof Jr.*
Affiliation:
Los Alamos Scientific Laboratory, Los Alamos, New Mexico 87544
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Abstract

The results of the third year of observations on the effects of self-irradiation on the lattice of 238(80%)PuO2 indicate a small but definite trend toward a reduction in the lattice parameter of this material. The lattice parameter increased from 5.41408±6 Å at 5 weeks to 5.41636±38 at 114 weeks and then decreased to 5.41364±23 at 157 weeks after the start of the experiment. A similar trend is noted in the half-widths of the diffraction lines. For the 622 reflection the half-width increased from 0.283±14°20 at 5 weeks to 0.711±90 at 114 weeks and then decreased to 0.660±89 at 157 weeks.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 16: 'Twenty-First Annual Conference on Applications of X-ray Analysis, August 2-4, 1972 , 1972 , pp. 396 - 400
Copyright
Copyright © International Centre for Diffraction Data 1972

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Footnotes

*

Work performed under the auspices of the U. S. Atomic Energy Commission. The Los Alamos Scientific Laboratory is operated by the University of California.

References

1. Roof, B. B., Jr., “The Effects of Self-irradiation on the Lattice of 238(80%)PuO2 ” in Heinrich, K. F. J., Barrett, C. S., Newkirk, J. B. and Rudd, C. O., Editors, Advances in X-ray Analysis, Vol. 15, Plenum Press (1971).Google Scholar
2. Vogel, R. E. and Kempter, C. P., “A Matheraatical Technique for the Precision Determination of Lattice Parameters”, Acta Cryst. 14, 1130–1134 (1961).Google Scholar