Scaling and optimization of the radiation temperature in dynamic hohlraums

A quasianalytic model of the dynamic hohlraum is presented. Results of the model are compared to both experiments and full numerical simulations with good agreement. The computational simplicity of the model allows one to fin d the behavior of the hohlraum radiation temperature as a function of the v arious parameters of the system and thus find optimum parameters as a funct ion of the driving current. The model is used to investigate the benefits o f ablative standoff and quasispherical Z pinches. (C) 2001 American Institu te of Physics.