Improved direct-drive target illumination uniformity at the laser facility Iskra-4M

The requirements for the laser facility based on illumination uniformity calculations which allow the user to achieve implosion of 103 are formulated. The experimental results of the improved direct drive target illumination uniformity are presented. Using it for smoothing properties of the plasma phase plate (PPP) is proposed. PPP parameters for spatial and temporal smoothing of DDT illumination nonuniformities are evaluated.