神光-Ⅲ主机X光双通道单分幅成像系统研制

摘要

AccordingtotheoperationmodeandtargetchamberstructureofSG-Ⅲlaserfacility,asingleframeX-rayfram-ing camera system with double channels is successfully designed.The imaging system mainly consists of a pin-hole camera,a ga-ted 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 fa-cility.Compared to the traditional X ray imaging system,which mainly consists of pin-hole camera and X-ray CCD,the signal-to-noise ratio and spatial resolution are better.%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。