| 库仑定理导出的2维空间电荷限制流一级近似公式 |
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| 引用本文： | 杨超,刘大刚,夏蒙重,杨宇鹏,徐旭光.库仑定理导出的2维空间电荷限制流一级近似公式[J].强激光与粒子束,2011,23(1). |
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| 作者姓名： | 杨超 刘大刚 夏蒙重 杨宇鹏 徐旭光 |
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| 作者单位： | 电子科技大学 物理电子学院, 成都 610054 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 为了准确计算空间电荷效应,从库仑定律和电流连续性方程出发，通过求解带电粒子群在空间某点产生的电场，再考虑到一系列合理的近似，最后得到了轴对称圆柱导体构形的空间电荷限制流的2维一级近似公式,结果显示,对于有限平面的电荷限制流大于经典1维限制流。
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| 关 键 词： | 空间电荷定律 空间电荷限制流 库仑定律 高斯定理 |
| 收稿时间： | 1900-01-01; |
Deducing two-dimensional space-charge-limited flow first-level approximating formula from Coulomb's law |
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| Yang Chao,Liu Dagang,Xia Mengzhong,Yang Yupeng,Xu Xuguang.Deducing two-dimensional space-charge-limited flow first-level approximating formula from Coulomb's law[J].High Power Laser and Particle Beams,2011,23(1). |
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| Authors: | Yang Chao Liu Dagang Xia Mengzhong Yang Yupeng Xu Xuguang |
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| Institution: | School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
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| Abstract: | Based on the Coulomb's law and the current continuity equation,this paper solutes the electric field of the charged particles group at a certain point in space,and considers a series of reasonable approximation.The two-dimensional space-charge-limited flow first-level approximating formula in the axial symmetry column conductor is obtained.The result reveals that for a limited plane the computed charge-limited flow by the two-dimensional is bigger than that by the classical one dimension formula. |
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| Keywords: | Child-Langmuir law space-charge-limited current Coulomb's law Gauss theorem |
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