Electron cooling in decaying low-pressure plasmas

被引：13

作者：

Celik, Yusuf ^{[1
]}

Tsankov, Tsanko V. ^{[1
]}

Aramaki, Mitsutoshi ^{[2
]}

Yoshimura, Shinji ^{[3
]}

Luggenhoelscher, Dirk ^{[1
]}

Czarnetzki, Uwe ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Inst Plasma & Atom Phys, D-44780 Bochum, Germany

[2] Nagoya Univ, Dept Elect Engn & Comp Sci, Nagoya, Aichi 4648603, Japan

[3] Natl Inst Nat Sci, Natl Inst Fus Sci, Toki, Gifu 5095292, Japan

来源：

PHYSICAL REVIEW E | 2012年 / 85卷 / 04期

关键词：

IONIZATION; AFTERGLOW; KINETICS; ARGON; IMPACT; GAS;

D O I：

10.1103/PhysRevE.85.046407

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A simple analytical fluid dynamic model is developed for evaporative electron cooling in a low-pressure decaying plasma and compared to a two-dimensional simulation and experimental data for the particular case of argon. Measured electron temperature and density developments are fully reproduced by the ab initio model and the simulation. Further, it is shown that in the late afterglow thermalization of electrons occurs by coupling to the ion fluid via Coulomb collisions at sufficiently high electron densities and not by coupling to the neutral background.

引用

页数：6

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