Measurement of Electron Swarm Parameters in Nitrous Oxide

This study has measured the density-normalized effective ionization coefficients （α-η）/N, the electron drift velocity V e and the diffusion coefficient D L in nitrous oxide （N_2O） using a pulsed Townsend technique. The range of the overall density-normalized electric field strength E/N is from 100 T...

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Published inPlasma science & technology Vol. 15; no. 5; pp. 425 - 428
Main Author 邓云坤 肖登明 李学文 高小飞
Format Journal Article
LanguageEnglish
Published 01.05.2013
Subjects
Constraining
Diffusion coefficient
Electric field strength
Electron drift velocity
Electron swarms
Field strength
Ionization coefficients
Nitrous oxides
一氧化二氮
参数测量
子群
归一化
扩散系数
氧化亚氮
漂移速度
电场强度E
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Summary:This study has measured the density-normalized effective ionization coefficients （α-η）/N, the electron drift velocity V e and the diffusion coefficient D L in nitrous oxide （N_2O） using a pulsed Townsend technique. The range of the overall density-normalized electric field strength E/N is from 100 Td to 400 Td （1 Td=10 17 V·cm2）. From the above plots of （α-η）/N, we have derived the limiting field strength, （E/N） lim ≈ 150 Td, which is the value of E/N at which （α-η）/N=0.
Bibliography:DENG Yunkun , XIAO Dengming , LI Xuewen ,GAO Xiaofei（ Department of Electrical Engineering, Shanghai Jiaotong University, Shanghai 200030 China）
This study has measured the density-normalized effective ionization coefficients （α-η）/N, the electron drift velocity V e and the diffusion coefficient D L in nitrous oxide （N_2O） using a pulsed Townsend technique. The range of the overall density-normalized electric field strength E/N is from 100 Td to 400 Td （1 Td=10 17 V·cm2）. From the above plots of （α-η）/N, we have derived the limiting field strength, （E/N） lim ≈ 150 Td, which is the value of E/N at which （α-η）/N=0.
34-1187/TL
Townsend discharges, electron collisions, transport properties, N2O
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SourceType-Scholarly Journals-1
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ISSN:1009-0630
DOI:10.1088/1009-0630/15/5/06