NUMERICAL-SIMULATION OF THERMAL EQUALIZAT ION AND HYDRODYNAMIC COMPENSATION IN LASER GREENHOUSE TARGETS

Two-dimensional numerical calculations were made in a study of heat-co nduction and hydrodynamic equalisation of the asymmetry of heating and compression of 'laser greenhouse' targets. It is shown that small-sca le perturbations become equalised by the high thermal conductivity and by transverse shock waves in the absorber component of a target. It i s proposed to use working targets with a surface relief for compensati ng the strong heating asymmetry associated with coupling of laser radi ation through apertures in a working target.