| 具有汇聚特性的场发射电子源的模拟研究 |
| |
| 引用本文： | 蒋进京,宋翠华,曹崇龙,元光,蒋红,宋航.具有汇聚特性的场发射电子源的模拟研究[J].液晶与显示,2008,23(1):48-51. |
| |
| 作者姓名： | 蒋进京 宋翠华 曹崇龙 元光 蒋红 宋航 |
| |
| 作者单位： | 1. 中国海洋大学物理系,山东,青岛,266071
2. 中国科学院长春光学精密机械与物理研究所激发态物理重点实验室,吉林,长春,130033 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划)
,
山东省青岛市科技发展基金 |
| |
| 摘 要： | 提出了一种具有汇聚特性的新型场发射阴极结构,利用有限元方法模拟计算了此种阴极结构在不同参数条件下的电场分布、电子轨迹,考察了不同参数对电子汇聚效果的影响,给出了此种场发射阴极的栅极-阴极间距、栅极宽度、阳极电压、栅极电压等基本参数对汇聚效果的影响.模拟计算结果表明,电子束的汇聚程度随着栅极-阴极间距的增大而增大,随着栅极宽度的增大而减小;电子束的汇聚程度与阳极电压、栅极电压参数密切相关,并存在最优参数.
|
| 关 键 词： | 场发射 阴极结构 发散比率 有限元 特性 电子源 模拟研究 Emitter Electron 最优参数 存在 相关 电压参数 程度 电子束 结果 栅极电压 阳极电压 宽度 阴极间距 影响 汇聚效果 考察 电子轨迹 |
| 文章编号： | 1007-2780（2008）01-0048-04 |
| 收稿时间： | 2007-09-05 |
| 修稿时间： | 2007-10-23 |
Simulation of Self-focusing Electron Emitter |
| |
| JIANG Jin-jing,SONG Cui-hua,CAO Chong-long,YUANG Guang,JIANG Hong,SONG Hang.Simulation of Self-focusing Electron Emitter[J].Chinese Journal of Liquid Crystals and Displays,2008,23(1):48-51. |
| |
| Authors: | JIANG Jin-jing SONG Cui-hua CAO Chong-long YUANG Guang JIANG Hong SONG Hang |
| |
| Abstract: | A new structure of self-focusing field electron emitter was proposed in this paper. The distribution of the electric field and the electron trajectory of the emitter were calculated by finite element method, and the influences of the structure parameters on electron focusing were also systematically investigated. The simulated results showed that the self-focusing performance of electron beam became better when the distance of the grid-cathode increased or the width of the grid decreased. The performance was also closely related to the anode voltage and grid voltage, there was an optimum point of the self-focusing performance depended on the anode and grid voltage. |
| |
| Keywords: | field emission structure of electron emitter dispersion ratio finite element |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
