Oxford Centre for High Energy Density Science (OxCHEDS)

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Large acoustic transients induced by nonthermal melting of InSb

PHYSICAL REVIEW LETTERS 98:22 (2007) ARTN 225502

Authors:

H Enquist, H Navirian, TN Hansen, AM Lindenberg, P Sondhauss, O Synnergren, JS Wark, J Larsson
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Modeling Planetary Interiors in Laser Based Experiments Using Shockless Compression

Chapter in High Energy Density Laboratory Astrophysics, Springer Nature (2007) 285-289

Authors:

J Hawreliak, J Colvin, J Eggert, DH Kalantar, HE Lorenzana, S Pollaine, K Rosolankova, BA Remington, J Stölken, JS Wark
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Nanosecond x-Ray diffraction from polycrystalline and amorphous materials in a pinhole camera geometry suitable for laser shock compression experiments

REVIEW OF SCIENTIFIC INSTRUMENTS 78:8 (2007) ARTN 083908

Authors:

J Hawreliak, HE Lorenzana, BA Remington, S Lukezic, JS Wark
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Performance of capillary discharge guided laser plasma wakefield accelerator

2007 IEEE PARTICLE ACCELERATOR CONFERENCE, VOLS 1-11 (2007) 2222-+

Authors:

K Nakamura, E Esarey, CGR Geddes, AJ Gonsalves, WP Leernans, D Panasenko, CB Schroeder, Cs Toth, SM Hooker
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Simulating EXAFS patterns of shocked crystals

AIP Conf. Proc. 955 (2007) 1243-1246

Authors:

A Higginbotham, RC Albers, TC Germann, BL Holian, K Kadau, PS Lomdahl, WJ Murphy, B Nagler, JS Wark

Abstract:

Extended X-ray absorption fine structure (EXAFS) measurements on shocked polycrystalline iron have provided further evidence for the shock induced α - ε phase transition in iron. However, recent molecular dynamics investigation of this system has suggested the presence of fcc material in the shocked region. In this paper we will investigate the difficulties in simulating EXAFS signals from molecular dynamics data. We will aim to show that in the case of the shock induced α - ε transition EXAFS is insensitive to the type of close packing of the product phase. © 2007 American Institute of Physics.
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