Evidence for reduction of turbulent mixing at the ablation front in experiments with shell targets

The results of the computation analysis of the turbulent mixing in the direct and indirect‐driven shell targets are presented. The simulation were carried out by TURLINA‐code based on phenomenological mixing model. The effects of the mixing are studied numerically for the SOKOL‐laser experiments and for the indirect‐driven targets. The comparison of the TURLINA‐code simulations with the SOKOL experimental X‐ray picture gives the evidence for reduction of turbulent mixing at the ablation front in experiments with shell targets. The estimates of the initial roughness and the effect of ablation‐stabilization influence on the turbulent mixing and neutron yield from DT‐filled glass microballoon are carried out. The allowable compression asymmetry for thermonuclear ignition is discussed.