Simulations of a Ne-like Ge x-ray laser in RFNC-VNIIEF and comparison with experiments

The results of 3D modeling and experimental investigations on the Ne-like Ge x-ray laser (λ=196 a) on ISKRA-5 facility in RFNC-VNIIEF are presented. The divergence of amplified spontaineous emission (ASE) in a direction perpendicular to the target is about 10 mrad, and ASE beam deflection with respect to an optical axis is about 10 mrad. The experimental data are in good agreement with the results of 3D non-steady-state simulations using TRANS code. Calculations show that considerable rise of brightness and transverse coherence length can be achieved under half-cavity conditions.