一种新型的变像管用复合聚焦-偏转系统

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。

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 cylindrical focusing electrode in a streak tube to form a combined focusing-deflection system,of which the focusing and deflecting properties have been verified by the related qualitative analysis.And the optimized system has provided the possibility for the miniaturization of streak tubes.

参考文献

[1] Klevin M W.Image converters and image intensifier for military and scientific use[J].Proc of IRE,1959,47(5):904-909.

[2] Linden B R,Snell P A.Shutter image converter tubes[J].Proc of IRE,1957,45(3):513-523.

[3] 陈敏,赵宝升,盛立志,等.多狭缝条纹变相管的设计[J].光子学报,2006,35(9):1309-1312.(Chen Min,Zhao Baosheng,Sheng Lizhi,et al.Design of al multi-slit streak tube.Acta Photonica Sinica,2006,35(9):1309-1312)

[4] 李冀,牛憨笨.一种大动态范围扫描变像管的电子光学结构[J].光电子·激光,2002,13(8):784-786.(Li Ji,Niu Hanben.A new electron optics configuration for a streak image tube with large dynamic range.Journal of Optoelectronics Laser,2002,13(8):784-786)

[5] Qian B L,Elsayed-Ali H E.Acceleration element for femtosecond electron pulse compression[J].Phys Rev E,2002,65:046502.

[6] Qian B L,Elsayed-Ali H E.A new compensating element for a femtosecond photoelectron gun[J].Rev Sci Instrum,2001,72(9):3507-3513.

[7] Karrer R,Neff H J,Hengsberger M,et al.Design of a miniature picosecond low-energy electron gun for time-resolved scattering experiments[J].Rev Sci Instrum,2001,72(12):4404-4407.

[8] 蒲友雷,罗勇.回旋速调管双阳极磁控注入电子枪的设计与优化[J].强激光与粒子束,2007,19(6):951-955.(Pu Youlei,Luo Yong.Design of a double anode magnetron injection gun for gyroklystron amplifier.High Power Laser and Particle Beams,2007,19(6):951-955)

[9] 殷学军,夏佳文,刘振灏,等.强流电子枪电子光学性能的研究[J].强激光与粒子束,2004,16(2):246-250.(Yin Xuejun,Xia Jiawen,Liu Zhenhao,et al.Study an optical property of high current electron gun.High Power Laser and Particle Beams,2004,16(2):246-250)

[10] Niu H,Sibbett W.Theoretical analysis of space-charge effects in photochron streak cameras[J].Rev Sci Instrum,1981,52(12):1830-1836.

[11] 田进寿,白永林,刘百玉,等.飞秒条纹变相管的设计[J].光子学报,2006,35(12):1832-1836.(Tian Jinshou,Bai Yonglin,Liu Baiyu,et al.Design of a femto-second streak tube.Acta Photonica Sinica,2006,35(12):1832-1836)

[12] 田进寿,赵宝升,温文龙,等.一种多狭缝条纹变相管[J].光子学报,2007,36(11):1979-1982.(Tian Jinshou,Zhao Baosheng,Wen Wenlong,et al.A multiple-slit streak tube.Acta Photonica Sinica,2007,36(11):1979-1982)

[13] 王超,唐天同,康晓辉,等.附加电极对扫描变像管性能的优化[J].强激光与粒子束,2008,20(3):513-516.(Wang Chao,Tang Tiantong,Kang Xiaohui,et al.Optimization effect of auxiliary electrode on streak image tube.High Power Laser and Particle Beams,2008,20(3):513-516)

[14] 王超,唐天同,康晓辉.阴极透镜层流电子枪调制特性[J].强激光与粒子束,2008,20(4):661-665.(Wang Chao,Tang Tiantong,Kang Xiaohui.Modulating properties of electrostatic immersion objective laminar flow gun.High Power Laser and Particle Beams,2008,20(4):661-665)

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[J]. 强激光与粒子束, 2009, 21(7): 993. Kang Yifan, Feng Dayi, Zhou Libin, Wang Chao, Tian Xiaona, Tian Jinshou, Liu Hulin, Tang Tiantong. A novel combined focusing-deflection system for streak image tube[J]. High Power Laser and Particle Beams, 2009, 21(7): 993.

一种新型的变像管用复合聚焦-偏转系统

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