QUANTITATIVE MEASUREMENT OF ATOMIC OXYGEN DENSITY IN A MICROWAVE GENERATED AIR PLASMA BY LASER INDUCED FLUORESCENCE

M.  Balat; P.  Peze; M.  Lebrun; J.  Siffre

doi:10.1615/HighTempMatProc.v1.i1.80

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Editor en Jefes: Valiantsin M. Astashynski (open in a new tab) Andrey V. Gusarov (open in a new tab)

Editor Asociado: Nikolai N. Cherenda (open in a new tab)

Publicado 4 números por año

ISSN Imprimir: 1093-3611

ISSN En Línea: 1940-4360

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QUANTITATIVE MEASUREMENT OF ATOMIC OXYGEN DENSITY IN A MICROWAVE GENERATED AIR PLASMA BY LASER INDUCED FLUORESCENCE

Volumen 1, Edición 1, 1997, pp. 97-107

DOI: 10.1615/HighTempMatProc.v1.i1.80

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M. Balat
IMP-CNRS, Institut de science et de génie des Matériaux et Procédés IMP-CNRS, BP 5, 66125 Odeillo Cédex (France)

P. Peze
LPCA, Laboratoire de Physico-Chimie de l'Atmosphère, 145 rue du Pertuis d'Amont, 59140 Dunkerque (France)

M. Lebrun
IMP-CNRS, Institut de science et de génie des Matériaux et Procédés IMP-CNRS, BP 5, 66125 Odeillo Cédex (France)

J. Siffre
ONERA - CERT, 2 avenue Edouard Belin, BP 4025, 31055 Toulouse Cédex (France)

SINOPSIS

An air plasma diagnostic is done by Laser Induced Fluorescence (LIF) on the MESOX simulation test bench used to reproduce atmospheric reentry conditions. The parameters taken into account are the total air pressure (100 to 5000 Pa), the air flow rate (1.11 10⁻⁶ and 5.83 10⁻⁶ m³.s⁻¹), the microwave power (300 and 600 W) and the distance from the discharge (5 and 15 cm). The results are an increase of the atomic oxygen concentration with pressure, and a decrease with the flow rate and the distance from the discharge.

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