氩气对氦-氩气体中空心阴极放电特性的影响

doi:10.3969/j.issn.1000-1565.2023.03.005

河北大学学报(自然科学版) ›› 2023, Vol. 43 ›› Issue (3): 257-262.DOI: 10.3969/j.issn.1000-1565.2023.03.005

氩气对氦-氩气体中空心阴极放电特性的影响

邓佳松,赵雪娜,何寿杰

收稿日期:2022-09-07 出版日期:2023-05-25 发布日期:2023-06-15
通讯作者: 何寿杰(1979—)
作者简介:邓佳松(1998—),男,江西丰城人,河北大学在读硕士研究生.E-mail:jiasongdeng@qq.com
基金资助:
国家自然科学基金资助项目(51777051);河北省高等学校科学研究项目(ZD2020197);河北省自然科学基金资助项目(E2021201037;E2022201057)

Effect of argon on the characteristics of hollow cathode discharge in He-Ar gas

DENG Jiasong, ZHAO Xuena, HE Shoujie

College of Physics Science and Technology, Hebei University, Baoding 071002

Received:2022-09-07 Online:2023-05-25 Published:2023-06-15

摘要/Abstract

摘要： 利用流体模型,在氦-氩混合气体环境下模拟研究了氩气含量对空心阴极放电特性的影响. 结果表明,随着氩气含量的增加(摩尔分数 0~10% ),放电电流、电子密度、氦离子密度、氩离子密度和阴极位降区径向电场强度均升高,负辉区径向电场强度和阴极位降区宽度降低. 电子密度和氩离子密度的升高要快于氦离子密度的升高.当氩气摩尔分数高于 5% 时,氩气对于放电的贡献已经高于氦气.

关键词: 空心阴极放电, 氦-氩气体, 流体模型, 电子密度

Abstract: In this paper, the effect of argon concentration on the characteristics of hollow cathode discharge is studied by using a fluid model in the He-Ar mixture gas. The results show that with the increase of argon mole fraction(0—10% ), the discharge current, electron density, helium ion density, argon ion density, and the radial electric field in the cathode sheath region all increase. The radial electric field in the negative glow region and the width of the cathode sheath region decrease with the increase of argon concentration. The increase of electron density and argon ion density is faster than that of helium ion density. When the mole fraction of argon is higher than 5%, the contribution of argon to the discharge is higher than that of helium.

Key words: hollow cathode discharge, He-Ar gas, fluid model, electron density

中图分类号:

O531

邓佳松,赵雪娜,何寿杰. 氩气对氦-氩气体中空心阴极放电特性的影响[J]. 河北大学学报(自然科学版), 2023, 43(3): 257-262.

DENG Jiasong, ZHAO Xuena, HE Shoujie. Effect of argon on the characteristics of hollow cathode discharge in He-Ar gas[J]. Journal of Hebei University(Natural Science Edition), 2023, 43(3): 257-262.

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氩气对氦-氩气体中空心阴极放电特性的影响

Effect of argon on the characteristics of hollow cathode discharge in He-Ar gas

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