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Size and Density of A 242Pu Colloid

Published online by Cambridge University Press:  28 February 2011

Robert S. Rundberg
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
Alan J. Mitchell
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
Ines R. Triay
Affiliation:
Los Alamos National Laboratory, Los Alamos, NM 87545, U.S.A.
N. Börje Torstenfelt
Affiliation:
ASEA-ATOM REACTORS, Box 53, S-721 04, Västeräs, Sweden.
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Abstract

The size and density of a 242Pu colloid has been measured by autocorrelation photon spectrometry. The sedimentation rate of the colloid was determined by ultraspeed centrifugation. From the concentration profiles of 242Pu in the centrifuged test tubes, a standard sedimentation formula was used to calculate the density; the size of the colloid was known from the light scattering experiments. The determined density of the 242Pu colloid was only slightly lower than the estimated density of crystalline PuO2.

Type
Research Article
Copyright
Copyright © Materials Research Society 1988

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References

1. “Final Storage of Spent Nuclear Fuel - KBS-3”, KBS report, SKBF/KBS, Stockholm, 1983.Google Scholar
2. Olofsson, U., Allard, B., Andersson, K., and Torstenfelt, B., “Formation and Properties of Radiocolloids in Aqueous Solution-A Literature Survey,” Report Pray 4.25, Pray, Stockholm, 1981.Google Scholar
3. Newton, T. W., Hobart, D. E., and Palmer, P. D., “The Preparation and Stability of Pure Oxidation States of Neptunium, Plutonium and Americium,” NNWSI Milestone report C379, Nevada Nuclear Waste Storage Investigations, 1985.Google Scholar
4. Rundberg, R. S., Zeltmann, A., and Mitchell, A. J., “Measuring Particle-Size Distributions by Autocorrelator Photon Spectroscopy,” In “Isotope and Nuclear Chemistry Division Annual Report FY 1984,” Los Alamos National Laboratory report LA-10366-PR, 1985.Google Scholar
5. Butler, J. P., Reeds, J. S., and Dawson, S. V., “Estimating Solutions of First Kind Integral Equations with Nonnegative Constraints and Optimal Smoothing,” SIAM J. Numer. Anal. 18, 381(1981).Google Scholar
6. S.Stock, R. and Ray, W. H., “Interpretation of Photon Correlation Spectroscopy Data: A Comparison of Analysis Methods,” J. Polymer Sci. 23, 1393 (1985).Google Scholar
7. Pruttom, C. F. and Maron, S. H., Fundamental Principles of Physical Chemistry, p 251, MacMillan, New York, 1951.Google Scholar
8. Ichikawa, F. and Sato, T., “On the Particle Size Distribution of Hydrolyzed Plutonium(IV) Polymer,” J. Radioanal. and Nucl. Chem., 84, 269, (1984).Google Scholar
9. Haire, R. G., Lloyd, M. H., Beasley, M. L., and Milligan, W. O., “Aging of Hydrous Plutonium Dioxide,” J. of Electronmic., 20, 8, (1971).Google Scholar
10. Zeltman, A., (Personal Communication).Google Scholar