论文部分内容阅读
为了满足飞秒变像管扫描相机对偏转器的特殊要求,设计了一种应用于高速扫描相机的行波偏转器。根据Finch的行波偏转器设计理论,简化设计流程并利用HFSS软件建立偏转器模型,模拟并求解了行波偏转器的高频信号传播特性和通频带宽,通过电磁波相速度与电子束飞行速度的匹配确定了行波偏转器基本结构参数,并优化设计了一种适合应用于具有10kV电子能量高速扫描相机的行波偏转器。所设计行波偏转器长度为44mm,板间距为4mm,通频带宽为4GHz,偏转灵敏度为119.8mm/kV。结合现有的高速扫描相机对此行波偏转器进行了测试实验,测试结果表明,设计结果准确可靠,设计方法得当。该研究为变像管扫描相机的行波偏转器设计提供了有效途径,缩短了高时间分辨扫描相机的研发周期。
In order to meet the special requirements of the deflector for the tube imaging camera, a traveling-wave deflector applied to high-speed scanning camera was designed. According to the design theory of Finch traveling wave deflector, the design flow is simplified and the deflector model is established by using HFSS software. The propagation characteristics and frequency bandwidth of the high-frequency signal of the traveling wave deflector are simulated and solved. Based on the relationship between electromagnetic phase velocity and electron beam flight velocity The basic structural parameters of the traveling wave deflector are determined and a suitable traveling wave deflector suitable for the high speed scanning camera with 10kV electron energy is optimized. The designed traveling wave deflector has a length of 44mm, a plate spacing of 4mm, a passband of 4GHz and a deflection sensitivity of 119.8mm / kV. The high-speed scanning camera is used to test the traveling wave deflector. The test results show that the design result is accurate and reliable and the design method is proper. The research provides an effective way to design the traveling-wave deflector of the image tube scanning camera and shortens the development cycle of the high-resolution time-resolved scanning camera.