Generation of a sharp density increase in radiation transport between high-Z and low-Z plasmas

作     者：Guangwei Meng Jianguo Wang Xuerong Wang Jinghong Li Weiyan Zhang 

作者机构：Institute of Applied Physics and Computational MathematicsBeijing 10094China Laboratory of Computational PhysicsBeijing 100088China National Hi-Tech Inertial Confinement Fusion Committee of ChinaBeijing 100088China 

出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)

年 卷 期：2016年第1卷第5期

页      面：249-256页

核心收录：

学科分类：07[理学] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：This work was supported by the National Basic Research Program of China(Grant No.2013CB922200) the National Natural Science Foundation of China(Grant No.11025417 and 11405010) the Science and Technology Developing Foundation of CAEP(Grant no.2013B0102016) 

主　　题：Density incrustation Radiation hydrodynamics Opacity 

摘      要：A sharp density increase(referred to as density incrustation)of the Au plasmas in the radiative cooling process of high-Z Au plasmas confined by low-Z CH plasmas is found through the radiative hydrodynamic *** temperature of Au plasmas changes obviously in the cooling layer while the pressure remains ***,the Au plasmas in the cooling layer are compressed,and the density incrustation is *** is also shown that when the high-Z plasma opacity decreases or the low-Z plasma opacity increases,the peak density of the density incrustation becomes lower and the thickness of the density incrustation becomes *** phenomenon is crucial to the Ray-leigheTaylor instability at the interface of high-Z and low-Z plasmas,since the density variation of Au plasmas has a considerable influence on the Atwood number of the interface.