| 渐近解求解静电成像电子光学近轴横向像差的验证 |
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| 引用本文： | 周立伟,公慧.渐近解求解静电成像电子光学近轴横向像差的验证[J].北京理工大学学报,2009,29(12):1035-1041. |
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| 作者姓名： | 周立伟 公慧 |
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| 作者单位： | 北京理工大学,光电学院,北京,100081 |
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| 基金项目： | 国家自然科学基金资助项目，高等学校博士点专项科研基金资助课题 |
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| 摘 要： | 通过一两电极静电同心球系统的理想模型的解析解,对以渐近解表示的近轴横向像差进行了验证.推导了两电极静电同心球系统的理想模型的渐近解各系数的表达式,以证明基于渐近解求解电子光学近轴横向像差的途径的可行性和正确性.由渐近解导出的静电电子光学成像系统的二级和三级近轴色差表达式,证明了莱克纳格尔-阿尔齐莫维奇(Recknagel-Artimovich)公式依然成立.给出了以简明形式表示的近轴横向像差的表达式,对于成像电子光学的像差理论和像管设计具有理论和实际意义.
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| 关 键 词： | 成像电子光学系统 静电阴极透镜 像差理论 近轴横向像差 近轴色差 近轴放大率色差 |
| 收稿时间： | 2009/7/20 0:00:00 |
Test and Verification of Paraxial Lateral Aberrations of Imaging Electrostatic Electron Optics Based on the Asymptotic Solutions |
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| ZHOU Li-wei and GONG Hui.Test and Verification of Paraxial Lateral Aberrations of Imaging Electrostatic Electron Optics Based on the Asymptotic Solutions[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(12):1035-1041. |
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| Authors: | ZHOU Li-wei and GONG Hui |
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| Institution: | ZHOU Li-wei,GONG Hui(School of Optoelectronics,Beijing Institute of Technology,Beijing 100081,China) |
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| Abstract: | In the present paper,the paraxial lateral aberrations,in which the aberration coefficients are solved by asymptotic solutions of paraxial equation,have been verified and tested by a two-electrode electrostatic spherical concentric system model.The two special solutions expressed by asymptotic solutions and accurate solutions in a two-electrode electrostatic spherical concentric system model have been deduced.Result completely proves that the approach based on asymptotic solutions to solve the paraxial later... |
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| Keywords: | imaging electron optical systems electrostatic cathode lenses aberration theory of electron optics paraxial lateral aberrations paraxial chromatic aberration paraxial chromatic aberration of magnification |
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