Highly radiative shock experiments driven by GEKKO XII

被引：15

作者：

Diziere, A. ^{[1
]}

Michaut, C. ^{[2
]}

Koenig, M. ^{[1
]}

Gregory, C. D. ^{[1
]}

Ravasio, A. ^{[1
]}

Sakawa, Y. ^{[3
]}

Kuramitsu, Y. ^{[3
]}

Morita, T. ^{[3
]}

Ide, T. ^{[3
]}

Tanji, H. ^{[3
]}

Takabe, H. ^{[3
]}

Barroso, P. ^{[4
]}

Boudenne, J. -M. ^{[1
]}

机构：

[1] Univ Paris 06, LULI, Ecole Polytech, CNRS, F-91128 Palaiseau, France

[2] Univ Paris Diderot, LUTH, Observ Paris, CNRS, F-92190 Meudon, France

[3] Osaka Univ, Inst Laser Engn, Suita, Osaka 5650871, Japan

[4] Univ Paris Diderot, GEPI, Observ Paris, CNRS, F-92190 Meudon, France

来源：

ASTROPHYSICS AND SPACE SCIENCE | 2011年 / 336卷 / 01期

关键词：

Radiative shock; High-power laser; Shock wave; Plasmas; Hydrodynamics; TEMPERATURE;

D O I：

10.1007/s10509-011-0653-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, recent results obtained on highly radiative shocks generated in a xenon filled gas cell using the GEKKO XII laser facility are presented. Data show extremely high shock velocity (a parts per thousand yen150 km/s) never achieved before in gas. Preliminary analyses based on theoretical dimensionless numbers and numerical simulations suggest that these radiative shocks reach a new radiative regime where the radiative pressure plays a role in the dynamics and structure of the shock. A major effect observed is a strong anisotropic emission in the downstream gas. This unexpected feature is discussed and compared to available 2D radiation hydrodynamic simulations.

引用

页码：213 / 218

页数：6

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