Highly radiative shock experiments driven by GEKKO XII

作者：Diziere A^*; Michaut C; Koenig M; Gregory C D; Ravasio A; Sakawa Y; Kuramitsu Y; Morita T; Ide T; Tanji H; Takabe H; Barroso P; Boudenne J M

来源：Astrophysics and Space Science, 2011, 336(1): 213-218.

DOI：10.1007/s10509-011-0653-6

• Radiative shock
• High-power laser
• Shock wave
• Plasmas
• Hydrodynamics

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.

• 出版日期2011-11