光学学报, 2015, 35 (12): 1232001, 网络出版: 2015-12-10   

用于激光雷达的大探测面积超小型条纹管

Streak Tube with Large Work Area and Small Size Used in Lidar Detection System
作者单位
1 中国科学院西安光学精密机械研究所瞬态光学与光子技术国家重点实验室, 陕西 西安 710119
2 中国科学院大学, 北京 100049
摘要
利用三维电磁仿真软件CST 模拟设计了一款小型电聚焦条纹管,在模拟中采用了正交实验法来确定条纹管各电极间距离及各电极电压。同时,根据条纹管像差定义对其像质进行了全面的理论分析和评价。优化设计的条纹管阴极有效工作面积直径大于28 mm,物理时间分辨率优于30 ps,边缘静态空间分辨率大于20 lp/mm,条纹管放大倍率为1.07,总管长仅为100 mm,管外围直径为50 mm。满足航天、空间探测以及海洋执法等应用领域非扫描式激光雷达技术对大探测面积、超小型条纹变像管的应用需求。
Abstract
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.

惠丹丹, 田进寿, 卢裕, 王俊锋. 用于激光雷达的大探测面积超小型条纹管[J]. 光学学报, 2015, 35(12): 1232001. Hui Dandan, Tian Jinshou, Lu Yu, Wang Junfeng. Streak Tube with Large Work Area and Small Size Used in Lidar Detection System[J]. Acta Optica Sinica, 2015, 35(12): 1232001.

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