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DPG

Augsburg 2006 – wissenschaftliches Programm

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P: Plasmaphysik

P 28: Astrophysikalische Plasmen; Dichte Plasmen 1; Schwerionen- und lasererzeugte Plasmen 2; Staubige Plasmen 4; Theorie 1

P 28.2: Poster

Mittwoch, 29. März 2006, 17:30–19:00, Flure

Reflectivity in shock wave fronts — •Thomas Raitza, Heidi Reinholz, August Wierling, and Gerd Roepke — Rostock university, Universitaetsplatz 3, 18051

For the reflection coefficient R of shock-compressed dense Xenon plasmas new results at pressures of 1.6 – 20 GPa and temperatures around 30  000 K are interpreted, see [4]. Reflectivities typical for metallic systems are found [1] at high densities. A consistent description of the measured reflectivities is archieved [2,3] if a finite width of the shock wave front is considered. A new approach for a shock wave front profile is discussed. Several mechanisms to give a physical explanation are shown.

[1] Reinholz H, Röpke G, Wierling A, Mintsev V, and Gryaznov V 2003 Contrib. Plasma hys. 43 3

[2] Reinholz H, Zaparoghets Y, Mintsev V, Fortov V, Morozov I, and Röpke G 2003 Phys. Rev. E 68 036403

[3] Reinholz H, Röpke G, Morozov I, Mintsev V, Zaparoghets Y, Fortov V, and Wierling A 2003 J. Phys. A: Math. Gen. 36, 5991

[4] Zaparoghets Y, Mintsev V, Gryaznov V, Fortov V, Reinholz H, Raitza T, and Röpke G 2005 J. Phys. A: Math. Gen. in press

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