基于ICF冷冻靶的高精度束靶耦合关键技术研究

项目名称： 基于ICF冷冻靶的高精度束靶耦合关键技术研究

项目编号： No.51275120

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 刘炳国

作者单位： 哈尔滨工业大学

项目金额： 77万元

中文摘要： 冷冻靶相关技术研究目前成为惯性约束聚变领域的前沿课题。基于冷冻靶的束靶耦合研究的核心问题是在极端条件下（超低温，高真空，狭小空间）实现冷冻靶的空间位姿精确定位和多路激光快速准直和瞄准。 针对这一难题，在充分调研国外相关技术基础上，本文主要研究基于图像测量原理的冷冻靶束靶耦合监测技术，其关键技术包括ICF激光驱动器高精度靶场坐标系建立与转换技术，基于先验知识的冷冻靶的三维空间姿态快速自动定位技术，基于弱照明的图像特征提取技术，基于图像特征的多光束识别和空间编码技术，和多光束并行定位及快速调焦技术等。 基于冷冻靶超低温工作特殊要求，测量过程中严格控制束靶耦合监测系统对靶的温度影响，研究建立基于冷冻靶束靶耦合系统的温度场数学模型，研究其温度变化的特性及保持超低温场稳定的策略，根据仿真结果，研制束靶耦合系统样机并开展相关实验研究。

中文关键词： 惯性约束聚变；冷冻靶；束靶耦合；图像匹配；

英文摘要： The research for cryogenic target is to become the advanced topics of the field of inertial confinement fusion at the present time. The core issue of target and laser coupling of the cryogenic target is target positioning and multi-path lasers alignment under extreme conditions (such as ultra-low temperature, high vacuum, a narrow space). Under of the full investigation of the domestic and foreign technology for this problem, this paper studies based on image measurement principle for laser and target aligning, and its key technologies including coordinate system conversion technology in the ICF target field, the automatic positioning technology for three-dimensional space of posture of the cryogenic target based on a prior knowledge, The image feature extraction technique based on the weak lighting,The multi-path lasers recognition and spatial coding techniques based on image feature, and multi-laser parallel positioning and fast-focusing technology. According to the particularity of the cryogenic target ultra-low temperature working conditions, Measurement process should strictly control laser target aligning system generating heat, studies the mathematical model based on the temperature of the cryogenic target, and discover the law of the temperature field changes ,then stable the temperature field .With the

英文关键词： ICF；Cryogenic target；Laser and Target Alignment；Image Matching；