The influence of nitrogen entrainment on argon plasmas created by the 'Torche a Injection Axiale' (TIA)

被引：25

作者：

Jonkers, J ^{[1
]}

Hartgers, A ^{[1
]}

Selen, LJM ^{[1
]}

van der Mullen, JAM ^{[1
]}

Schram, DC ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands

来源：

PLASMA SOURCES SCIENCE & TECHNOLOGY | 1999年 / 8卷 / 01期

关键词：

D O I：

10.1088/0963-0252/8/1/006

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：

When a plasma is sustained in the open air, nitrogen will diffuse into the plasma. Especially for plasmas sustained by the 'Torche a Injection Axiale' (TIA) this appears to be the ease, since this turbulent jet draws gases from the surroundings. In the argon plasma the entrained nitrogen is probably converted into N-2(+) (via charge transfer with argon ions), which is consequently destroyed by dissociative recombination (DR). This mechanism affects the plasma in two ways: (1) it offers an important loss channel for the free electrons and (2) the gas is heated by the kinetic energy of the nitrogen atoms produced in the DR reaction.

引用

页码：49 / 57

页数：9

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