| 阴极弧斑放电的机理分析 |
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| 引用本文： | 吕庆敖,任兆杏.阴极弧斑放电的机理分析[J].真空与低温,1999,5(4):202-207. |
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| 作者姓名： | 吕庆敖 任兆杏 |
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| 作者单位： | 中国科学院等离子体物理研究所!合肥230031 |
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| 摘 要： | 介绍了阴极弧斑放电的基本特征。参考前人的研究模型和最新的实验结果，系统地分析了阴极弧斑放电的机理和过程：电子的爆裂发射模型；热场致发射理论；阴极电位降区满足的Ｍａｃｋｅｏｗｎ 公式；阴极弧斑在磁场中的运动机理。最后讨论了气压对弧斑运动的影响，解释了阳极弧斑放电特征。
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| 关 键 词： | 阴极弧斑 热场致发射 电子爆裂发射 弧斑运动 |
ANALYSIS ON THE MECHANISM OF ARC DISCHARGE WITH CATHODE SPOTS |
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| Abstract: | The characteristics of cathode spots arc were introduced in this paper.Considering the theoretical models and the new experimental results,the mechanism and process of the cathode arc discharge were analyzed systematically:electron explosive emission model,thermionic field emission theory,Mackeown formula in collisionless layer at cathode,and spots motion model in a magnetic field.In the end,the mechanism of the pressure effects on the spots motion and the anode spots characteristics were discussed. |
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| Keywords: | cathode spots thermionic field emission explosive emission spots moving |
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