Two-Dimensional Numerical Research on the Ablation Effects of Silver Target Bombarded by TEMP Type Accelerator

Abstract

Two-dimensional numerical research has been carried out on the ablation effects of metal silver target irradiated by high intensity pulsed ion beam (HIPIB) generated by TEMP type accelerator. Temporal and spatial evolution of the ablation process of the target during a pulse time has been simulated. We have come to the conclusion that the melting and evaporating process begin from the surface and the target is ablated layer by layer when the target is irradiated by the HIPIB. Meanwhile, we also obtained the result that the average ablation velocity in target central region is about 4 m/s, which is far less than the ejection velocity of the plume plasma formed by irradiation.