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Description and optimization of a wall-stabilized arc chamber (2000)

Brugeat, S. ; Coitout, H. ; Parizet, M. J.

[S.l.] : American Institute of Physics (AIP)

Review of Scientific Instruments 71 (2000), S. 3702-3705

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ISSN: 1089-7623

Source: AIP Digital Archive

Topics: Physics , Electrical Engineering, Measurement and Control Technology

Notes: A wall-stabilized arc chamber has been built to make spectroscopic measurements in order to study thermal plasmas. An experimental design method has been carried out in order to control and to optimize all experimental setup parameters. Pure Ar, Ar–CO2, and Ar–N2 mixtures have been used to test time reliability and homogeneity of the plasma. © 2000 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.1286307

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Determination of electron density in a wall stabilized Ar-CO ${\mathsf{_2}}$ thermal plasma (2004)

Brugeat, S. ; Coitout, H.

Springer

The European physical journal 28 (2004), S. 101-107

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ISSN: 1434-6079

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract. The electron density is measured in an argon-CO2 thermal plasma by optical emission spectroscopy. Electron density is deduced from the Stark broadening of the argon line and hydrogen (H $_{\alpha}$ ) line. Different theories are used and compared. The effect of CO2 molecule upon this plasma is studied as a function of the Ar-CO2 mixture composition and discharge current. The electron density is ranging from 3 x 1021 m-3 to 5.6 x 1022 m-3. The influence of the arc confinement is studied and the electron density gradients are evaluated. Departure from local thermal equilibrium is also discussed.