一种新型的变像管用复合聚焦-偏转系统

康轶凡; 冯大毅; 周利斌; 王超; 田晓娜; 田进寿; 刘虎林; 唐天同

一种新型的变像管用复合聚焦-偏转系统

1.
空军工程大学理学院, 西安 71 0051 ;
2.
陕西科技大学理学院, 西安 71 0021 ;
3.
西安交通大学电子物理与器件教育部重点实验室, 西安 71 0049;
4.
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, 西安 71 01 1 9

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出版历程
- 刊出日期: 2009-07-15

A novel combined focusing-deflection system for streak image tube

1.
Science Institute,Air Force Engineering University,Xi’an 710051,China;
2.
Faculty of Science,Shaanxi University of Science and Technology,Xi’an 710021,China;
3.
Department of Electronic Science and Technology,Xi’an Jiaotong University,Xi’an 710049,China;
4.
State Key Laboratory of Transient Optics and Photonics,Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China

摘要

摘要: 介绍了一种新型的多极式偏转器——8瓣状多极偏转器，它可通过将一旋转对称电极均匀开槽切割为８片而成。通过对圆周上各电极电位分布作傅里叶分析，获得了在其内部产生近乎均匀横向偏转场所需要的电极电位设置规律。由于其结构上的旋转对称性以及Laplace方程解的调和性，当在此8瓣偏转器各电极上同时叠加一聚焦透镜所需电位时，它所产生的场中多极场分量为16极场或者更多极场而不影响近轴区的聚焦效果，因而其能与常用的圆筒形电极相结合而形成复合聚焦-偏转系统。其具有的聚焦偏转特性也通过相关的定性分析得以验证。同时，这样结构上的优化也为变像管的小型化设计提供了可能性。
- 变像管 /
- 复合聚焦-偏转系统 /
- 瓣状偏转器 /
- 傅里叶分析 /
- 小型化
Abstract: A novel multiple-electrode electrostatic deflector (petal-like) is introduced. It can be got by symmetrically slotting a cylindrical electrode into eight separate parts. The Fourier analysis of the potential distribution on the circumference of the electrode circle has elicited the principle for electrode potential settings to generate a nearly transversely-uniform deflecting field. Based on the rotational symmetry in its shape and the harmonicity of the solution of Laplace equation, multipole fields generated by the petal-like electrode would not affect the focusing property of the conventional electrostatic lens in the paraxial region, when the focusing potential additionally applied. Therefore, the introduced multiple-electrode petal-like defector can be combined with the commonly used
- streak image tube /
- combined focusing-deflection systems /
- petal-like deflector /
- fourier analysis /
- miniaturization