Influence of impurities on the temperature of an atmospheric helium plasma in microwave resonant cavity

被引：55

作者：

Cardoso, R. P. ^{[1
]}

Belmonte, T. ^{[1
]}

Keravec, P. ^{[1
]}

Kosior, F. ^{[1
]}

Henrion, G. ^{[1
]}

机构：

[1] CNRS, Ecole Mines, UMR 7570, Lab Sci & Genie Surfaces, F-54042 Nancy, France

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2007年 / 40卷 / 05期

关键词：

D O I：

10.1088/0022-3727/40/5/012

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of the content and nature of impurities on the rotational temperature of three probe molecules ( OH, NH and N-2(+)) in a helium plasma created in a microwave resonant cavity is investigated by the synthetic spectra method and by mass spectrometry. OH is found to be the only reliable probe to obtain a satisfactory estimation of the gas temperature. In our experimental conditions, depending on the impurity, the gas temperature varies strongly and at 500 ppm, for instance, a difference of 700K is possible (similar to 30% of the mean temperature).

引用

页码：1394 / 1400

页数：7

共 29 条

[1] Thermal inequilibrium of atmospheric helium microwave plasma produced by an axial injection torch [J].

Alvarez, R ;

Rodero, A ;

Quintero, MC ;

Sola, A ;

Gamero, A ;

Ortega, D .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (09)

[2] Radial description of excitation processes of molecular and atomic species in a high-pressure helium microwave plasma torch [J].

Alvarez, R ;

Quintero, MC ;

Rodero, A .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (20) :3768-3777

[3] Two-dimensional space-time-resolved emission spectroscopy on atmospheric pressure glows in helium with impurities [J].

Anderson, C ;

Hur, M ;

Zhang, P ;

Mangolini, L ;

Kortshagen, U .

JOURNAL OF APPLIED PHYSICS, 2004, 96 (04) :1835-1839

[4] Variations of the gas temperature in He/N2 barrier discharges [J].

Bibinov, NK ;

Fateev, AA ;

Wiesemann, K .

PLASMA SOURCES SCIENCE & TECHNOLOGY, 2001, 10 (04) :579-588

[5] Numerical description of discharge characteristics of the plasma needle [J].

Brok, WJM ;

Bowden, MD ;

van Dijk, J ;

van der Mullen, JJAM ;

Kroesen, GMW .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (01)

[6] Influence of trace oxygen on He(23S) density in a He-O2 microwave discharge at atmospheric pressure:: behaviour of the time afterglow [J].

Cardoso, R. P. ;

Belmonte, T. ;

Henrion, G. ;

Sadeghi, N. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2006, 39 (19) :4178-4185

[7] Modelling of the homogeneous barrier discharge in helium at atmospheric pressure [J].

Golubovskii, YB ;

Maiorov, VA ;

Behnke, J ;

Behnke, JF .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2003, 36 (01) :39-49

[8]

HORNKOHL JO, 1998, APPL OPTICS, V37, P2493

[9] ROTATIONAL COLLISION NUMBER FOR NITROGEN [J].

JAIN, PC .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1980, 13 (01) :25-28

[10] The role of molecular rare gas ions in plasmas operated at atmospheric pressure [J].

Jonkers, J ;

van de Sande, M ;

Sola, A ;

Gamero, A ;

Rodero, A ;

van der Mullen, J .

PLASMA SOURCES SCIENCE & TECHNOLOGY, 2003, 12 (03) :464-474

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