| 强流静电会聚电子枪系统计算机模拟研究 |
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| 引用本文： | 罗德均, 祁康成, 林祖伦, 李新义,.强流静电会聚电子枪系统计算机模拟研究[J].电子器件,2008,31(5). |
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| 作者姓名： | 罗德均 祁康成 林祖伦 李新义 |
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| 作者单位： | 电子科技大学光电信息学院,成都,610054 |
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| 摘 要： | 轻、小型层流电子枪在电子束焊接,微波器件等方面具有广泛的应用,希望得到稳定的、环形分布且会聚良好的电子束.但传统电子枪的聚焦系统如磁聚焦或电磁混合聚焦存在结构复杂、重量大的缺点.我们采用具有优异电子发射和抗中毒能力的LaB6作为阴极材料,纯静电聚焦的方式进行仿真、设计.经过理论探讨和计算机模拟仿真,在5 000 V总电压下,输出300 mA强流电子束,导流系数达到了3.35 μA/V3/2.为下一步具体的结构设计提供了可靠依据.
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| 关 键 词： | 电子光学 计算机仿真模拟 PIC(particle-in-cell)方法 强流电子枪 静电会聚 |
Computer Simulation of High Electron Beam E-Gun Focused by Static Electric Field |
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| LUO De-jun,QI Kang-cheng,LIN Zu-lun,LI Xin-yi.Computer Simulation of High Electron Beam E-Gun Focused by Static Electric Field[J].Journal of Electron Devices,2008,31(5). |
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| Authors: | LUO De-jun QI Kang-cheng LIN Zu-lun LI Xin-yi |
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| Institution: | LUO De-jun,QI Kang-cheng,LIN Zu-lun,LI Xin-yi(School of Optic-Electronic Information,University of Electronic Science , Technology of China,Chengdu 610054,China) |
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| Abstract: | Light,small scale laminar e-guns are widely used in electron beam welding,microwave devices etc.Well focused e-beams with steady annular disfribution are expected.The traditional focusing systems are the complicated and heavy structure,such as magnetic or electrical-magnetic hybrid focusing systems.LaB6 is taken as cathode materials due to its outstanding qualities of electron emission and anti-poisoning.We propose the structure of pure static electric field focusing system,which simplified the structure an... |
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| Keywords: | electric-optics computer simulation PIC method high electron beam e-gun static electrical field focusing |
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