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Title: Self-irradiation damage to the local structure of plutonium and plutonium intermetallics

Abstract

The effect of self-irradiation damage on the local structure of {delta}-Pu, PuAl{sub 2}, PuGa{sub 3}, and other Pu intermetallics has been determined for samples stored at room temperature using the extended x-ray absorption fine-structure (EXAFS) technique. These measurements indicate that the intermetallic samples damage at a similar rate as indicated in previous studies of PuCoGa{sub 5}. In contrast, {delta}-Pu data indicate a much slower damage accumulation rate. To explore the effect of storage temperature and possible room temperature annealing effects, we also collected EXAFS data on a {delta}-Pu sample that was held at less than 32 K for a two month period. This sample damaged much more quickly. In addition, the measurable damage was annealed out at above only 135 K. Data from samples of {delta}-Pu with different Ga concentrations and results on all samples collected from different absorption edges are also reported. These results are discussed in terms of the vibrational properties of the materials and the role of Ga in {delta}-Pu as a network former.

Authors:
; ;  [1];  [2]; ; ; ;  [3];  [4]; ; ;  [5]
  1. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  2. Nuclear Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
  3. Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  4. Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  5. Condensed Matter and Materials Division, Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Publication Date:
OSTI Identifier:
22102293
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 113; Journal Issue: 9; Other Information: (c) 2013 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION; ABSORPTION SPECTROSCOPY; ALUMINIUM ALLOYS; ANNEALING; COBALT ALLOYS; CRYSTAL STRUCTURE; DAMAGE; FINE STRUCTURE; GALLIUM ALLOYS; GRAIN SIZE; INDIUM ALLOYS; INTERMETALLIC COMPOUNDS; PLATINUM ALLOYS; PLUTONIUM; PLUTONIUM ALLOYS; SELF-IRRADIATION; TEMPERATURE RANGE 0273-0400 K; X RADIATION; X-RAY SPECTROSCOPY

Citation Formats

Booth, C. H., Yu, Jiang, Medling, S. A., Wang, D. L., Costello, A. L., Schwartz, D. S., Mitchell, J. N., Tobash, P. H., Bauer, E. D., McCall, S. K., Wall, M. A., and Allen, P. G. Self-irradiation damage to the local structure of plutonium and plutonium intermetallics. United States: N. p., 2013. Web. doi:10.1063/1.4794016.
Booth, C. H., Yu, Jiang, Medling, S. A., Wang, D. L., Costello, A. L., Schwartz, D. S., Mitchell, J. N., Tobash, P. H., Bauer, E. D., McCall, S. K., Wall, M. A., & Allen, P. G. Self-irradiation damage to the local structure of plutonium and plutonium intermetallics. United States. https://doi.org/10.1063/1.4794016
Booth, C. H., Yu, Jiang, Medling, S. A., Wang, D. L., Costello, A. L., Schwartz, D. S., Mitchell, J. N., Tobash, P. H., Bauer, E. D., McCall, S. K., Wall, M. A., and Allen, P. G. 2013. "Self-irradiation damage to the local structure of plutonium and plutonium intermetallics". United States. https://doi.org/10.1063/1.4794016.
@article{osti_22102293,
title = {Self-irradiation damage to the local structure of plutonium and plutonium intermetallics},
author = {Booth, C. H. and Yu, Jiang and Medling, S. A. and Wang, D. L. and Costello, A. L. and Schwartz, D. S. and Mitchell, J. N. and Tobash, P. H. and Bauer, E. D. and McCall, S. K. and Wall, M. A. and Allen, P. G.},
abstractNote = {The effect of self-irradiation damage on the local structure of {delta}-Pu, PuAl{sub 2}, PuGa{sub 3}, and other Pu intermetallics has been determined for samples stored at room temperature using the extended x-ray absorption fine-structure (EXAFS) technique. These measurements indicate that the intermetallic samples damage at a similar rate as indicated in previous studies of PuCoGa{sub 5}. In contrast, {delta}-Pu data indicate a much slower damage accumulation rate. To explore the effect of storage temperature and possible room temperature annealing effects, we also collected EXAFS data on a {delta}-Pu sample that was held at less than 32 K for a two month period. This sample damaged much more quickly. In addition, the measurable damage was annealed out at above only 135 K. Data from samples of {delta}-Pu with different Ga concentrations and results on all samples collected from different absorption edges are also reported. These results are discussed in terms of the vibrational properties of the materials and the role of Ga in {delta}-Pu as a network former.},
doi = {10.1063/1.4794016},
url = {https://www.osti.gov/biblio/22102293}, journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 9,
volume = 113,
place = {United States},
year = {Thu Mar 07 00:00:00 EST 2013},
month = {Thu Mar 07 00:00:00 EST 2013}
}