ICF内爆压缩X光成像过程数值模拟  

Numerical simulation for X-ray imaging in ICF implosion

作　　者：高耀明[1] 吕信[1] 李沄生[1] 李蒙[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》2007年第11期1858-1860,共3页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题;国家自然科学基金资助课题(10335020);国防科技重点实验室基金资助课题

摘　　要：基于定态局域热动平衡辐射输运方程求解和光线追踪方法,编制了X光成像后处理程序,能够数值再现ICF内爆压缩X光成像过程。将该程序用于神光Ⅱ装置间接驱动内爆物理的理论设计和实验数据分析。模拟结果表明:燃料区压缩后的尺寸、燃料区掺Ar和内壳层涂S两元素特征谱线发光时序及发光持续时间等过程,后处理方法结果与诊断测量数据基本符合。The post-processed technique is a basic method for analyzing X-ray imaging. With the solution of radiation transfer equation of local thermal equation in stationary state and ray tracing method, a post-processed program for X-ray imaging was accomplished. It could reproduce X-ray imaging in ICF implosion. Numerical results of size of compressed core and duration of doped argon and coated sulfur spectrum are coincident with the data of implosion experiments in Shenguang-Ⅱ.

关 键 词：内爆压缩 X光成像 后处理 光线追踪方法 

分 类 号：O532[理学—等离子体物理]