| 宏观放电参数对快原子态氮(N+,Nf)的影响 |
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| 引用本文： | 张连珠. 宏观放电参数对快原子态氮(N+,Nf)的影响[J]. 计算物理, 2003, 20(5): 403-407 |
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| 作者姓名： | 张连珠 |
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| 作者单位： | 河北师范大学物理学院, 河北 石家庄 050016 |
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| 基金项目： | 河北省自然科学基金(100064)资助项目 |
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| 摘 要： | 采用氮直流辉光放电等离子体中快电子和重粒子(N2+,N+,Nf)混合的蒙特卡罗方法,模拟研究了快原子态粒子(N+,Nf)的产生率及轰击阴极的能量分布随宏观放电参数(P,V)的变化规律.结果表明,存在一最佳放电条件,使阴极壁处粒子(N+,Nf)的粒子数密度大且能量高;当电压大于800V时,轰击阴极的活性粒子(N+,Nf),主要由N2+-N2离解过程产生,电压小于300V时,主要由e--N2离解过程产生,模拟结果与实验结果相符合.
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| 关 键 词： | 氮直流辉光放电 蒙特卡罗模拟方法 快原子态氮粒子 N2+-N2碰撞离解 |
| 文章编号： | 1001-246X(2003)05-0403-05 |
| 收稿时间： | 2002-07-15 |
| 修稿时间： | 2002-07-15 |
Effects of Discharge Parameters upon Fast Atomic Species (N+,Nf) |
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| ZHANG Lian-zhu. Effects of Discharge Parameters upon Fast Atomic Species (N+,Nf)[J]. Chinese Journal of Computational Physics, 2003, 20(5): 403-407 |
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| Authors: | ZHANG Lian-zhu |
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| Affiliation: | College of Physics, Hebei Normal University, Shijiazhuang 050016, China |
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| Abstract: | Using a Combination of Monte Carlo models of fast electron and species (N2+,N+,Nf), the creation rates and the energy distributions of species (N+,Nf) at the cathode in nitrogen glow discharge under different discharge conditions are studied.It is shown that the total density of N+ and Nf depends on the creation rate of ions(N2+,N+) and the thermalization of Nf, and species(N+,Nf) bombarding negative wall is mainly produced by N2+-N2s dissociation at higher voltages,but mainly produced by e--N2s dissociation at lower voltages. |
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| Keywords: | nitrogen dc glow discharge Monte Carlo simulation fast nitrogen atomic species N~+_2-N_2 dissociation collision |
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