J. Phys. IV France
Volume 133, June 2006
Page(s) 1193 - 1195
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1193-1195

DOI: 10.1051/jp4:2006133244

Numerical analysis of plasma medium of transient collisional excited X-ray laser

N. Ohnishi1, M. Nishikino2 and A. Sasaki2

1  Department of Aerospace Engineering, Tohoku University, 6-6-01 Aramaki-Aza-Aoba, Aoba-ku, Sendai 980-8579, Japan
2  Advanced Photon Research Center, Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1 Umemidai, Kizu, Soraku, Kyoto 619-0215, Japan

Two-dimensional (2D) radiation hydrodynamics simulations have been performed to investigate the refraction influence and the gain property in the plasma medium of the x-ray laser. The local energy deposition of the main pumping pulse generates a blast wave near the critical density surface, and the density dip structure is gradually formed behind the blast wave. The three-dimensional (3D) ray-trace calculation using the result of the 2D simulation shows the x-rays pass through the density dip with less refraction.

© EDP Sciences 2006