神光-Ⅲ主机X光双通道单分幅成像系统研制  

Development of single frame and double-channel X-ray framing camera system for SG-Ⅲ laser facility

作　　者：李晋[1] 杨志文[1] 杨品[1] 杨正华[1] 董建军[1] 李三伟[1] 刘慎业[1] 江少恩[1] 曹柱荣[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》2014年第10期164-168,共5页High Power Laser and Particle Beams

摘　　要：根据神光-Ⅲ激光器的运作方式和靶室结构,成功研制出用于神光-Ⅲ激光器装置的 X光双通道单分幅相机系统。该相机系统主要由针孔成像组件、MCP 选通技术型分幅相机和科学型可见光 CCD三部分组成,同时系统具有线下瞄准、线上三维调节的功能。系统中针孔直径为10μm,放大倍率为5,分幅相机单画幅宽度13 mm,长度36 mm,曝光时间0.5~10.0 ns可调。在神光-Ⅲ主机装置上成功完成了对此系统的性能考核,结果表明,该系统完全能够应用于神光-Ⅲ装置上,而且与传统方式上的针孔成像组件配接 X光 CCD组成的成像系统相比,具有更好的信噪比和空间分辨。AccordingtotheoperationmodeandtargetchamberstructureofSG-Ⅲlaserfacility,asingleframeX-rayframing camera system with double channels is successfully designed.The imaging system mainly consists of a pin-hole camera,a gated MCP framing camera and a scientific grade visible light CCD.The pin-hole diameter is 10μm,the and magnification is 5.The single frame format of the system is 13 mm×36 mm,and exposure time is adjustable from 0.5 ns to 10 ns.Performance evalua-tion is conducted on SG-Ⅲ laser facility,and the results show that the system completely meets the requirement of SG-Ⅲ laser facility.Compared to the traditional X ray imaging system,which mainly consists of pin-hole camera and X-ray CCD,the signal-tonoise ratio and spatial resolution are better.

关 键 词：针孔 分幅相机 离线瞄准 神光-Ⅲ主机装置 

分 类 号：O434.12[机械工程—光学工程]