Preparation of cone-shell target for fast ignition experiment

The preparation of cone-shell target used in fast ignition experiment was investigated. Polystyrene(PS) microshells with less wall thickness and diameter distribution were prepared with monodisperse PS. The dependence of the quality of Au cone on the parameters such as the composition, the pH of electroplating bath, the current density and the tip effect was discussed. A hole with a diameter about 120 μm on PS microshell was drilled. An Au cone-shell target was produced.