Modeling planetary interiors in laser based experiments using shockless compression [electronic resource].

Published:: Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:: PDF-file: 11 pages; size: 0 Kbytes
Additional Creators:: Lawrence Berkeley National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary:

X-ray diffraction is a widely used technique for measuring the crystal structure of a compressed material. Recently, short pulse x-ray sources have been used to measure the crystal structure in-situ while a sample is being dynamically loaded. To reach the ultra high pressures that are unattainable in static experiments at temperatures lower than using shock techniques, shockless quasi-isentropic compression is required. Shockless compression has been demonstrated as a successful means of accessing high pressures. The National Ignition Facility (NIF), which will begin doing high pressure material science in 2010, it should be possible to reach over 2 TPa quasi-isentropically. This paper outlines how x-ray diffraction could be used to study the crystal structure in laser driven, shocklessly compressed targets the same way it has been used in shock compressed samples. A simulation of a shockless laser driven iron is used to generate simulated diffraction signals. And recently experimental results are presented.

Report Numbers:

E 1.99:ucrl-proc-221172
ucrl-proc-221172

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Published through SciTech Connect.
04/20/2006.
"ucrl-proc-221172"
Presented at: HEDLA 2006`, Houston, TX, United States, Mar 11 - Mar 14, 2006.
Eggert, J; Colvin, J; Kalantar, D; Hawreliak, J; Wark, J S; Remington, B A; Pollaine, S; Stolken, J; Lorenzana, H E; Rosolankova, K.

Funding Information:

W-7405-ENG-48

View MARC record | catkey: 14106040