CH薄膜非平衡辐射烧蚀的特性  

Characters of nonequilibrium radiative ablation of CH foil

作　　者：曾先才[1] 盛家田[1] 李蒙[1] 张利发[1] 高耀明[1] 李沄生[1] 冯庭桂[1] 

机构地区：[1]北京应用物理与计算数学研究所,北京100088

出　　处：《强激光与粒子束》2004年第2期195-199,共5页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：　用一维多群辐射输运流体力学RDMG程序数值模拟研究了在神光-II黑腔辐射源条件下,非平衡辐射烧蚀CH薄膜的过程,给出了与平衡辐射烧蚀不同的烧蚀图像,得到了非平衡辐射烧蚀相关的数值定律。The process of nonequilibrium radiation ablation of CH foil has been numerically studied using 1-D RDMG code of multigroup-nonequilibrium radiation hydrodynamic under the condition of radiation source of Shenguang-II hohlraum, meanwhile different ablation images from the process of nonequilibrium radiative ablation and the relative scaling laws are obtained. Numerical results show that both electron temperature and ion temperature separate from radiation temperature and the spectra of radiation flux is nonequilibrium inside CH during the whole process of CH foil ablation. The ablative depth is shorter and shock wave is weaker compared with equilibrium ablation because nonequilibrium radiation ablation contains ionization wave, radiation heating wave and radiation ablation wave.

关 键 词：非平衡辐射烧蚀 特性 定标律 CH薄膜 数值模拟 惯性约束聚变 间接驱动 内爆压缩 

分 类 号：TL612.12[核科学技术—核技术及应用] O484[理学—固体物理]