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Calculation of X-ray absorption structure above K-edge of laser shock-compressed aluminum

Published online by Cambridge University Press:  09 March 2009

A. Djaoui ,
T. A. Hall ,
R. C. Albers ,
J. J. Rehr  and
J. Mustre
A. Djaoui
Affiliation:
Department of Physics, University of Essex, Colchester, CO4 3SQ, UK
T. A. Hall
Affiliation:
Department of Physics, University of Essex, Colchester, CO4 3SQ, UK
R. C. Albers
Affiliation:
Materials Science and Technology Division, Los Alamos National Laboratory, New Mexico 87545
J. J. Rehr
Affiliation:
Department of Physics, FM-15 University of Washington, Seattle, Washington 98195
J. Mustre
Affiliation:
Department of Physics, FM-15 University of Washington, Seattle, Washington 98195
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Abstract

Aluminum sandwich foils can be compressed to more than twice the normal density by the use of shock waves generated by laser beams. We present calculations of the K-edge absorption structure of two fold compressed aluminum, and compare the results with experimental data. The atomic potential is calculated using a spherical band-structure model with Fermi-Dirac statistics for the electrons. The structure above the K-edge is calculated according to the Müller-Shaich formula for the propagating photo-electron. The mean free path of the electron is taken into account through a complex exchange correlation potential. An appropriate Debye-Waller factor is used to represent the effect of the relatively high temperature encountered in these experiments.

Type
Research Article
Information
Laser and Particle Beams , Volume 8 , Issue 1-2 , January 1990 , pp. 319 - 325
Copyright
Copyright © Cambridge University Press 1990

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References

Albers, R. C. et al. 1985 Phys. Rev. B31, 3435.CrossRefGoogle Scholar
Djaoui, A. et al. 1988 to be published in Plasma Physics and Controlled Fusion 31, 1.Google Scholar
Djaoui, A. et al. 1988a Annual Report to the Laser Facility Committee RAL-88–042, 105–109.Google Scholar
Hall, T. A. et al. 1988 Phys. Rev. Lett. 60, 2034CrossRefGoogle Scholar
Hedin, L. & Lundquist, S. 1969 Solid State Physics 23, 1.Google Scholar
Lee, P. A. & Beni, G. 1977 Phys. Rev. B15, 2862.CrossRefGoogle Scholar
Müller, J. E. & Schaich, W. I. 1983 Phys. Rev. B27, 6489.CrossRefGoogle Scholar
Schaich, W. L. 1984 Phys. Rev. B29, 6513.CrossRefGoogle Scholar
Rehr, J. J. et al. 1986 Phys. Rev. B34, 4350.CrossRefGoogle Scholar