International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2575

Full Length Research Paper

Spectroscopic determination of the electrical parameters of a micro-wave discharge in helium plasma

L. Benmebrouk*
  • L. Benmebrouk*
  • Department of Physics, Faculté des Mathématiques et des Sciences de la Matière, University Ouargla, Ouargla 30 000, Algeria.
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F. Khelfaoui
  • F. Khelfaoui
  • Laboratory Rayonnement et Plasmas et Physique de Surface, Faculté des Mathématiques et des Sciences de la Matière, University Ouargla, Ouargla 30 000, Algeria.
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L. Mohammedi
  • L. Mohammedi
  • Department of Physics, Faculté des Mathématiques et des Sciences de la Matière, University Ouargla, Ouargla 30 000, Algeria.
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  •  Received: 18 April 2015
  •  Accepted: 12 January 2016
  •  Published: 30 January 2016

Abstract

This paper is based on the study of the emitted radiation by electrical discharge plasma, caused in the helium a pressure of 4.8 Torr, a power MW of 108W. The study numerical model allows the identification of several spectral lines. With the Boltzmann method the study have calculated the electronic temperature (Te=3.23eV), it corresponds to the classification scale of plasmas. The application of the Saha law gives the electronic density of the electrical discharge plasma (Ne=3.67 10 13 cm-3). The calculated theoretical spectra are in good agreement with the experimental ones.

Key words: Discharge plasma, broadening, shape of spectral line, thermodynamic equilibrium.