神光Ⅱ装置辐射驱动内爆对称性的研究(英文)  

Improvement of Asymmetry of Radiation Driven Implosion on ShenguangⅡ facility

作　　者：曾先才[1] 苗振国 陈辅之 常铁强[1] 

机构地区：[1]北京应用物理与计算数学研究所计算物理实验室

出　　处：《强激光与粒子束》1998年第2期243-248,共6页High Power Laser and Particle Beams

摘　　要：对神光Ⅱ条件下辐射驱动内爆的不对称性进行了二维数值模拟。模拟结果表明，靶丸内爆的不对称性对辐射温度源的不均匀性非常敏感，ＤＴ平均压缩度则对其不敏感。同时，内爆不对称性对中子产额和内爆效率有一定的影响。辐射驱动内爆的不对称性可以利用辐射温度源的时间调制得到明显的改善。Asymmetry of radiation-driven implosion on Shenguang Ⅱ facility is studied by means of 2D numerical simulations. It is shown from 2D simulation results that asymmetry of the capsule implosion is very sensitive to the non-uniformity of radiation temperature source but the maximum DT average compression ratio is not sensitive to it. It is also shown that the asymmetry of implosion has some influence upon the neutron yield as well as the implosion efficiency. The radiation-driven implosion asymmetry can be obviously improved using time-modulation of radiation temperature source .

关 键 词：不对称性 辐射驱动内爆 数值模型 聚变装置 

分 类 号：TL632[核科学技术—核技术及应用]