J. Phys. IV France
Volume 11, Numéro PR2, Juillet 2001
X-Ray Lasers 2000
Page(s) Pr2-305 - Pr2-308
7th International Conference on X-Ray Lasers

J. Phys. IV France 11 (2001) Pr2-305-Pr2-308

DOI: 10.1051/jp4:2001258

3D ray-tracing simulation of X-ray laser amplification

M. Temporal, S. Jacquemot, L. Bonnet and A. Decoster

CEA/DAM, Ile de France, BP. 12, 91680 Bruyères-le-Chatel, France

A 3D ray-tracing code has been developed to simulate the x-rays ([MATH]) produced in recent experiments where a silver target was driven by two laser beams. The code is used as a post-processor of the detailed kinetics code LASIX which provides emissivities and opacities for inverted transitions. The hydrodynamics of the plasma is calculated with the 1D1/2 CHIVAS code, where transverse profiles of temperatures and density follow a self-similar solution. Our 3D ray-tracing code accounts for progressive target illumination and calculates the x-ray laser output by solving the eikonal equation. Once 3D paths are determined a steady state transport solution is used to calculate the output intensity. The present 3D results are compared with 2D calculations as well as with collected experimental data.

© EDP Sciences 2001