Influence of non-equilibrium radiation source on ablation-driven shock waves propagating in CH foil

In indirect-driven inertial confinement fusion(ICF), the hohlraum’s non-equilibrium radiation field brings an unneglectable impact to the ablation process of the capsule’s ablator materials(CH, e.g.). In this paper, an artificial spectrum of the hohlraum’s radiation field is fabricated by combining the Planckian spectrum with a Gaussian spectrum near Au M-band. A CH foil ablated by such a radiation source is simulated, and the influence of non-equilibrium radiation field on physical quantities (ablation pressure, preheating, compression ratio, shock velocity,etc)of the ablation process is studied, using a 1D radiation hydrodynamics code RDMG with discrete ordinate approximation(Sn). The simulation results show that the Au M-band radiation in the hohlraum remarkably increases the preheat