核乳胶在激光直接驱动内爆DT燃料离子温度诊断中应用  

Application of nuclear emulsion in DT fuel ions temperature diagnostic in direct-driven implosions

作　　者：杨洪琼[1] 杨建伦[1] 温树槐[1] 郭玉芝[1] 唐正元[1] 王根兴[1] 

机构地区：[1]中国工程物理研究院核物理与化学研究所

出　　处：《核电子学与探测技术》2002年第2期166-169,共4页Nuclear Electronics & Detection Technology

基　　金：863- 416- 3专题;中国工程物理研究院预研基金资助

摘　　要：在神光 基频光直接驱动内爆实验中 ,采用国产核乳胶测量了 DD反应产生的质子产额 ,根据 DD反应的质子产额与 DT反应的中子产额的比值 ,诊断了 DT燃料离子温度 ;由于核乳胶对质子的探测效率比中子探测效率高 。In the direct driven implosion experiments on SG Ⅱlaser facility, the D(D,p)T proton yield is measured by using nuclear emulsion, and based on the ratio of DD proton yield vs DT neutron yield, the fuel plasmas ion temperature diagnostic is performed. Because the detection efficiency of protons is higher than that of neutrons, the yield ratio method is believed to be an alternative method and reasonably more suitable for ions temperature diagnostic in low yield experiments especially in future indirect driven implosion experiments.

关 键 词：激光惯性约束聚变 等离子体诊断 离子温度 核乳胶 DT燃料 激光直接驱动内爆实验 

分 类 号：TL65[核科学技术—核技术及应用] TL632.1