一种高增益超小型条纹相机及其集成控制系统  

High-gain Ultra-small Streak Camera and Its Integrated Control System

作　　者：张宇驰 田进寿[1,3] 薛彦华 李知兵 李少辉 王俊峰 刘百玉[1] 高贵龙[1] 陈萍[1] 王兴[1] 赵卫[1,2] ZHANG Yuchi;TIAN Jinshou;XUE Yanhua;LI Zhibing;LI Shaohui;WANG Junfeng;LIU Baiyu;GAO Guilong;CHEN Ping;WANG Xing;ZHAO Wei(Key Laboratory of Ultra‑fast Photoelectric Diagnostics Technology,Xi'an Institute of Optics and Precision,Chinese Academy of Sciences,Xi′an 710119,China;University of Chinese Academy of Sciences,Beijing 100049,China;Collaborative Innovation Center of Extreme Optics,Taiyuan 030000,China)

机构地区：[1]中国科学院西安光学精密机械研究所超快诊断技术重点实验室,西安710119 [2]中国科学院大学,北京100049 [3]极端光学协同创新中心,太原030000

出　　处：《光子学报》2022年第10期227-238,共12页Acta Photonica Sinica

基　　金：国家自然科学基金(No.12075311);中国科学院科研仪器设备研制项目(No.GJJSTD20190004);中国科学院战略性先导科技专项A类(No.XDA25030900);中国科学院青年创新促进会(No.2021402)。

摘　　要：针对机载激光雷达对小型化、高灵敏度、高增益及高时空分辨条纹相机的需求,研发了一种高亮度增益超小型条纹相机及其新型集成控制系统。该相机相较现役条纹相机体积与重量减小2/3以上,具备高灵敏度、大探测视场、高亮度增益、高时空分辨率等特点。测试得到阴极积分灵敏度为268μA/lm,亮度增益高达20.1,时间分辨率优于36 ps,其搭载的新型控制系统具备集成化程度高、抗电磁干扰能力强、兼容性高等特点,同时可将条纹相机扫描档位拓展至12路以上,并成功应用于西安光机所研制的5200、6200型等5款相机中。所研制的条纹相机已成功应用于激光雷达及激光聚变实验物理诊断中,运行良好。As a diagnostic instrument with ultra-high temporal and spatial resolution and spectral resolution,the streak camera is widely used in basic research fields such as physics,life sciences,and materials science,as well as in national strategic fields such as detonation physics,lidar,and inertial confinement fusion.Aiming at the requirements of airborne lidar for miniaturized,high-sensitivity,highgain,and high spatiotemporal resolution streak camera,a high-brightness-gain compact streak camera and its new integrated control system are developed.Compared with the general picosecond visible light streak camera,the volume and weight of the camera are reduced by more than 2/3.The selected streak camera adopts the theoretical simulation research of cathode semiconductor and the method of optimizing the process to greatly improve the sensitivity of the cathode.Using a slit acceleration grid improves the photoelectron transmittance,enhances the photoelectron energy to give the fluorescent screen higher luminous efficiency,and optimizes the cathode process to improve the brightness gain.The streak image tube has the characteristics of high sensitivity,large detection field,high brightness gain,and high temporal and spatial resolution.Starting from the principle and control requirements,combined with the theoretical analysis of the defects of the active control system,a new type of high-integration control system is developed for the camera,which fully eliminates the low integration,poor reliability and compatibility of the previous version.defect.The hardware of the new control system adopts the design method of modularization and function reuse,and the PCB adopts the multi-layer board design.Compared with the current version,the degree of integration is increased by 2.36 times to achieve multi-device compatibility.The bottom layer of the system hardware is divided into main control module,power supply module,A/D module,D/A module,digital I/O and extended scan switching module:the main control module takes STM32F107VCT6 as

关 键 词：条纹相机 控制系统 阴极灵敏度 亮度增益 集成度 兼容性 

分 类 号：TN16[电子电信—物理电子学]