Measurement of Short-Range Correlations in Shock-Compressed Plastic by Short-Pulse X-Ray Scattering

Journal Article · Fri Apr 24 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.165004· OSTI ID:21316646

Barbrel, B ^[1]; Koenig, M; Benuzzi-Mounaix, A; Brambrink, E; Rabec le Gloahec, M ^[1]; Brown, C R. D. ^[2]; Gericke, D O; Vorberger, J; Wuensch, K ^[3]; Nagler, B; Vinko, S M; Wark, J ^[4]; Riley, D ^[5]; Spindloe, C ^[6]; Gregori, G ^[4]

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1. Laboratoire pour l'Utilisation de Lasers Intenses, UMR7605, CNRS CEA, Universite Paris VI Ecole Polytechnique, 91128 Palaiseau Cedex (France)
2. Plasma Physics Department, AWE Aldermaston, Reading (United Kingdom)
3. Centre for Fusion, Space and Astrophysics, Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom)
4. Clarendon Laboratory, University of Oxford, OX1 3PU (United Kingdom)
5. School of Mathematics and Physics, Queens University of Belfast, Belfast BT7 1NN (United Kingdom)
6. Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom)

We have performed short-pulse x-ray scattering measurements on laser-driven shock-compressed plastic samples in the warm dense matter regime, providing instantaneous snapshots of the system evolution. Time-resolved and angularly resolved scattered spectra sensitive to the correlation effects in the plasma show the appearance of short-range order within a few interionic separations. Comparison with radiation-hydrodynamic simulations indicates that the shocked plastic is compressed with a temperature of a few electron volts. These results are important for the understanding of the thermodynamic behavior of strongly correlated matter for conditions relevant to both laboratory astrophysics and inertial confinement fusion research.

• OSTI ID: 21316646
• Journal Information: Physical Review Letters, Vol. 102, Issue 16; Other Information: DOI: 10.1103/PhysRevLett.102.165004; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
INERTIAL CONFINEMENT
LASERS
MATTER
PLASMA
PLASTICS
PULSES
TIME RESOLUTION
X-RAY DIFFRACTION