Measurement of Electron Swarm Parameters in Nitrous Oxide  

作　　者：邓云坤 肖登明 李学文 高小飞 

机构地区：[1]Department of Electrical Engineering, Shanghai Jiaotong University

出　　处：《Plasma Science and Technology》2013年第5期425-428,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China (No.51177101)

摘　　要：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.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.

关 键 词：Townsend discharges electron collisions transport properties N2O 

分 类 号：O613.61[理学—无机化学] O657.1[理学—化学]