ICF冷冻靶燃料冰层原位表征技术  

In situ characterization technique of fuel ice layer for ICF cryotargets

作　　者：王凯[1] 谢端[1] 林伟[1] 刘元琼[1] 黎军[1] 漆小波[1] 唐永建[1] 雷海乐[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3230-3234,共5页High Power Laser and Particle Beams

基　　金：中国工程物理研究院激光聚变研究中心创新基金项目(CX9123)

摘　　要：背光阴影成像是表征ICF冷冻靶燃料冰层的有效方法。基于背光阴影成像技术,冷冻靶燃料冰层原位表征技术能原位实时监测靶丸内燃料气体相变与冰层均化过程,得到打靶零前时刻燃料冰层厚度和粗糙度信息,为物理实验提供准确参数。在冷冻靶制备实验中,根据背光阴影成像的光线追迹模型和实验测得的阴影图像中的亮环位置,计算得到了均化后冷冻靶中燃料冰层的厚度以及内表面粗糙度。Backlit shadowgraphy is an effective method for characterizing fuel ice in ICF cryotargets. Based on backlit shad- owgraphy, the ice layer in situ characterization system can rnonitor the phase transformation and ice layering process of fuel in re- al time as well as provide thickness and roughness of fuel ice before target shooting for physical experiments. In the experiments of cryotarget preparation, the thickness and inner roughness of fuel ice layer were calculated By the ray tracing simulation of back- lit shadowgraphy and the position of bright ring in shadowgraph.

关 键 词：惯性约束核聚变 冷冻靶 背光阴影成像 光线追迹 

分 类 号：O435.1[机械工程—光学工程]