Abstract

It is shown that the local approximation for electron distribution function (EDF) determination at plasma periphery, where the ambipolar field is dominant, is not applicable even at high pressures when the characteristic plasma size exceeds the energy relaxation length of the electrons R > λε. Therefore, consistent results can be obtained only when solving the complete kinetic equation in both energy and spatial variables (i.e. it is necessary to solve nonlocal kinetic equation).

Details

Title
Ambipolar field role in formation of electron distribution function in gas discharge plasma
Author
Yuan, Chengxun 1 ; Bogdanov, E A 2 ; Kudryavtsev, A A 3 ; Rabadanov, K M 2 ; Zhou, Zhongxiang 1 

 Department of Physics, Harbin Institute of Technology, Harbin, China 
 Saint Petersburg State University, St. Petersburg, Russia 
 Department of Physics, Harbin Institute of Technology, Harbin, China; Saint Petersburg State University, St. Petersburg, Russia 
Pages
1-7
Publication year
2017
Publication date
Nov 2017
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1999144228
Copyright
© 2017. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.