强激光与粒子束, 2020, 32 (11): 112004, 网络出版: 2021-01-04   

激光聚变极端环境下X光高速摄影技术研究进展 下载: 615次

Progress of X-ray high-speed photography technology used in laser driven inertial confinement fusion
作者单位
1 中国工程物理研究院 激光聚变研究中心,四川 绵阳 621900
2 中国工程物理研究院 流体物理研究所,四川 绵阳 621900
3 中国工程物理研究院 核物理与化学研究所,四川 绵阳 621900
4 北京应用物理与计算数学研究所,北京 100094
5 中国工程物理研究院,四川 绵阳 621900
摘要
在激光惯性约束聚变(ICF)研究中,通过X光高速摄影获取的图像数据能够反映等离子体中由于做功和能量输运导致的流体状态的时空演化信息,与之相关的诊断技术与工程研究一直以来都是ICF诊断能力建设的重要组成部分。介绍了作为我国ICF工程的主要实施单位之一,中国工程物理研究院激光聚变研究中心近年来在X光高速摄影技术研究方面取得重要进展,包括:(1)面向神光系列激光装置,开发了系列工程化的100 ps曝光高速摄影相机,整体达到国际先进水平,并在高灵敏探测、透射式带通滤波和结构小型化等方面形成中国特色;(2)提出微扫描门控、同视扫描分幅等10 ps曝光X光高速摄影新技术,为突破时间分辨瓶颈做出有益尝试;(3)在国内率先开展抗辐射加固高速摄影相机理论设计、技术验证与工程设计;(4)针对激光聚变靶碎片对设备安全的威胁,在国内首次开展靶碎片的理论建模与仿真研究,并开展首次验证实验,取得重要进展。
Abstract
In the study of laser driven inertial confinement fusion (ICF), the image data obtained through X-ray high-speed photography technology can be used to analyze the spatial and temporal evolution of the plasma with fluid state produced by work and energy transport. The research of X-ray high-speed photography technology has always been an important part of the development of ICF diagnostics. The Laser Fusion Research Center of China Academy of Engineering Physics has made important progresses in the research of X-ray high-speed photography technology in recent years. These advances include: (1) making a success in developing the X-ray camera with 100ps exposure time for Shenguang laser facilities, which has reached the international advanced level as a whole, and is characterised in such aspects as high sensitivity, transmission-type band-pass filtering and miniaturized design; (2) proposing new types of X-ray high-speed photography technologies with 10 ps exposure time such as the micro-sweep gating technology to break the bottleneck of temporal resolution; (3) taking the lead in carrying out theoretical design, technical verification and engineering design of the radiation-hardened X-ray high-speed camera in China; (4) making the efforts on modeling and simulation on target debris and carrying out the special experiments for the first time in China to verify the simulation results.

曹柱荣, 王强强, 邓博, 陈韬, 邓克立, 王维荣, 彭星宇, 陈忠靖, 袁铮, 黎宇坤, 王鹏, 陈伯伦, 王峰, 何海恩, 李欣竹, 许泽平, 杨冬, 杨家敏, 江少恩, 丁永坤, 张维岩. 激光聚变极端环境下X光高速摄影技术研究进展[J]. 强激光与粒子束, 2020, 32(11): 112004. Zhurong Cao, Qiangqiang Wang, Bo Deng, Tao Chen, Keli Deng, Weirong Wang, Xingyu Peng, Zhongjing Chen, Zheng Yuan, Yukun Li, Peng Wang, Bolun Chen, Feng Wang, Haien He, Xingzhu Li, Zeping Xu, Dong Yang, Jiamin Yang, Shaoen Jiang, Yongkun Ding, Weiyan Zhang. Progress of X-ray high-speed photography technology used in laser driven inertial confinement fusion[J]. High Power Laser and Particle Beams, 2020, 32(11): 112004.

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