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Simulation of photo-detached electrons in negative ion plasmas

Plasma physics and controlled fusion Volume 46 Issue 8 Page 1217-1230
published_at 2004
Title
Simulation of photo-detached electrons in negative ion plasmas
Creators Naitou H.
Creators Sakurai Y.
Creators Tauchi Y.
Creators Fukumasa O.
Creators Yagi M.
Creators Yamagata Y.
Creators Uchino K.
Creators Muraoka K
The evolution of laser photo-detached and background electrons in a glow discharge plasma containing negative ions was followed using a two-dimensional particle-in-cell simulation code. Emphasis was placed on the short timescale (20 ns after photo-detachment for the parameters of a typical glow discharge plasma) behaviour because this is the timescale of the recently developed laser Thomson scattering technique combined with photo-detachment. A plasma consisting of background electrons, positive argon ions (Ar^+) and negative oxygen ions (O^-) was treated. The loss of photo-detached electrons from the photo-detachment region quickly forms a potential structure in a short time of 2 ns. The potential traps the remaining photo-detached electrons. The profile of the trapped photo-detached electrons is hollow. The loss of the photo-detached electrons from the photo-detachment region is compensated by the bulk electrons coming from the ambient plasma
Languages eng
Resource Type journal article
Publishers Institute of Physics
Date Issued 2004
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0741-3335
[NCID]AA10643410
https://doi.org/10.1088/0741-3335/46/8/004
[isPartOf] [URI]http://www.iop.org/EJ/journal/PPCF
Schools 大学院理工学研究科(工学)