J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 1193-1195
Numerical analysis of plasma medium of transient collisional excited X-ray laserN. 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