X射线法ICF靶丸几何参数批处理及壁厚分布计算  

Batch Processing of Geometric Parameters and Wall Thickness Distribution Calculation of ICF Capsule by X-ray Imaging Method

作　　者：赵学森[1,2] 高党忠[1] 马小军[1] 唐永建[1] 张林[1] 孙涛[2] 董申[2] 

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 [2]哈尔滨工业大学精密工程研究所,黑龙江哈尔滨150001

出　　处：《原子能科学技术》2012年第4期487-492,共6页Atomic Energy Science and Technology

基　　金：国家高技术发展计划资助项目

摘　　要：分析了靶丸微焦X射线成像的基本原理,采用改进Hough变换对靶丸X射线数字图像进行自动圆参数检测,结合最小二乘圆拟合算法获得了精确的多层靶丸几何参数,给出了靶丸图像批处理的整个分析流程,并开发了一套完整的靶丸X射线图像批处理计算软件。在此基础上讨论了靶丸壁厚分布的批处理计算问题,给出了多层靶丸壁厚分布状态及单层靶丸全表面壁厚分布情况的计算示例。The basic principle of micro-focus X-ray imaging was analyzed.An improved Hough transform method was applied to automatically detect circle parameters of the capsule X-ray digital image,and precise multi-layer capsule geometric parameters were obtained by combining the least squares circle fitting algorithm.The whole image analysis procedure of batch processing was also introduced and a complete capsule X-ray image batch computing software was developed.The wall thickness distribution of the capsule batch calculation was discussed based on the above work.Some examples of the wall thickness distribution of a multi-layer capsule and the whole surface distribution of a monolayer capsule were calculated.This work will contribute to the rapid automatic capsule geometry measurement,and provide more detailed capsule geometry parameters to meet the growing requirements of target fabrication tasks.

关 键 词：ICF靶丸 几何参数测量 X射线图像批处理 HOUGH变换 壁厚分布 

分 类 号：TH744.3[机械工程—光学工程]