Measurement of the First Townsend's Ionization Coefficients in Helium, Air, and Nitrogen at Atmospheric Pressure

被引：15

作者：

Ran, Junxia ^{[1
,2
]}

Luo, Haiyun ^{[2
]}

Yue, Yang ^{[2
]}

Wang, Xinxin ^{[2
]}

机构：

[1] Hebei Univ, Coll Phys Sci & Technol, Hebei Key Lab Opt Elect Informat & Mat, Baoding 071002, Peoples R China

[2] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2014年 / 83卷 / 07期

基金：

中国国家自然科学基金;

关键词：

BREAKDOWN; ATTACHMENT; MIXTURES;

D O I：

10.7566/JPSJ.83.074503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the past the first Townsend's ionization coefficient alpha could only be measured with Townsend discharge in gases at low pressure. After realizing Townsend discharge in some gases at atmospheric pressure by using dielectric barrier electrodes, we had developed a new method for measuring alpha coefficient at atmospheric pressure, a new optical method based on the discharge images taken with ICCD camera. With this newly developed method alpha coefficient in helium, nitrogen and air at atmospheric pressure were measured. The results were found to be in good agreement with the data obtained at lower pressure but same reduced field E/p by other groups. It seems that the value of alpha coefficient is sensitive to the purity of the working gas.

引用

页数：4

共 18 条

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