多层膜KB在内爆自发射诊断中的应用  

Application of multi-layer KB microscope to implosion self-emission diagnosis

作　　者：曹柱荣[1] 邓博[1] 董建军[1] 杨正华[1] 杨志文[1] 蒋炜[1] 陈家斌[1] 李晋[1] 袁铮[1] 黄天暄[1] 唐琦[1] 何小安[1] 张海鹰[1] 刘慎业[1] 江少恩[1] 丁永坤[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2013年第12期3106-3110,共5页High Power Laser and Particle Beams

摘　　要：在神光Ⅲ原型装置上开展了辐射驱动内爆自发射的高分辨多能点诊断技术研究。利用双周期多层膜KB的选能能点,配合多级记录系统,实现了内爆自发的高空间分辨准单色成像。实验结果表明,利用胶片可以获得发射2.5keV和3.5keV的清晰图像,利用CCD可以获得8keV的窄能带清晰图像。实验结果可以很好用于芯部不对称性、电子温度分布以及密度分布的分析处理,为惯性约束聚变精密物理实验研究提供了新的诊断技术和方法。The high spatial resolution and multi-energy point diagnostic technology explores the core zone for ICF implosion on SG-Ⅲ prototype device. With the reflective properties of double-periodic multi-layer KB, bremsstrahlung radiation characteris- tics of implosion can be divided into three energy points. Three energy points images are recorded separately by multi-level record- ing medium, including a three-layer film and CCD. The experimental results show that 2.5 keV, and 3.5 keV clear images can be obtained using the films, and a 8 keV clear image can be obtained using the CCD. The results can be used for core analysis and processing of asymmetry, electron temperature and density distribution. The multi-level recording technology and the experimen tal technique based on multi-layer KB provide new diagnostic techniques for ICF precision physics experiments.

关 键 词：多层膜KB 内爆自发射 多能点诊断 芯部 

分 类 号：TH742.63[机械工程—光学工程]