Streak tube with large work area and small size used in lidar detection system
Streak tube with large work area and small size used in lidar detection system
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DOI：
10.3788/aos201535.1232001
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发表时间：
2015-12
期刊：
影响因子：
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通讯作者：
D. Hui;Jinshou Tian;Yu Lu;Wang Junfeng
中科院分区：
文献类型：
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作者：
D. Hui;Jinshou Tian;Yu Lu;Wang Junfeng
利用三维电磁场仿真软件CST设计了一种带静电聚焦透镜的小型条纹管。通过正交实验确定条纹管的电极之间的距离和它们的电压。根据条纹管的像差理论，对条纹管的成像质量进行了系统的分析和评价。优化后的条纹管性能优越。光阴极工作区直径大于28 mm，物理时间分辨率优于30 ps，光阴极边缘静态空间分辨率大于20 lp/mm，电子光学放大率为1.07，条纹管全长仅为100 mm，光电转换效率高，光电转换效率高。条纹管外径为50 mm，设计的条纹管工作面积大，尺寸小，满足了军事成像、空间探测和海洋探测等应用中无扫描激光雷达系统的要求。© 2015，中国激光加工设备有限公司all right reserved.
a small-size streak tube with electrostatic focusing lens is designed with the aid of three-dimensional electromagnetic simulation software, cst. distances between electrodes of the streak tube and their voltages are determined by orthogonal experiments. also, according to the aberration theory of the streak tube, its imaging qualities are analyzed and evaluated systematically. the optimal streak tube possesses predominant performances. the diameter of work area of the photocathode is larger than 28 mm; physical temporal resolution is better than 30 ps; static spatial resolution at the margin of the photocathode is greater than 20 lp/mm; electron-optical magnification of the tube is 1.07; overall length of the streak tube is only 100 mm; outer diameter of streak tube is 50 mm. the designed streak tube with large work area and small size meets the requirements of scannerless lidar systems in the applications of military imaging scenarios, space exploration and marine detection. © 2015, chinese laser prees. all right reserved.