J. Phys. Soc. Jpn. 74, pp. 2249-2254 (2005) [6 Pages]
FULL PAPERS

Using the Stark Broadening of the Hα, Hβ and Hγ Lines for the Measurement of Electron Density and Temperature in a Plasma at Atmospheric Pressure

+ Affiliations
1Grupo de Espectroscopia de Plasmas, Departamento de Física, Edificio A. Einstein (C-2), Campus de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain

For a microwave plasma at atmospheric pressure the use of the Stark broadening of the H α , H β and H γ lines to determine the electron density and temperature is reported. Knowing the values of these plasma parameters is important because the electrons (density) and their energy (temperature) control the internal kinetics in the discharge. We found that the use of the Gigosos–Cardeñoso model permitted us to obtain the same value of the electron density from the Stark broadening of the three Balmer lines. The dependence of the Stark broadening on the electron density and temperature for H α , H β and H γ lines has permitted the application of an intersection method to try finding the values of the electron density and temperature simultaneously. The results have shown the possibility of estimating the electron density with an uncertainty of under 10% by using this intersection method , without knowing the accurate value of the electron temperature. In the case of the electron temperature the uncertainty was 40%, which seems to indicate that this method is not appropriate for the determination of this plasma parameter.

©2005 The Physical Society of Japan

References

  • 1 H.Kempkens and J.Uhlenbush:Plasma Sources Sci. Technol. 9 (2000) 492. CrossrefGoogle Scholar
  • 2 H. R. Griem:Plasma Spectroscopy (McGraw Hill, New York, 1964) Chap. 4. Google Scholar
  • 3 M. D.Calzada, M. Moisan, A. Gamero and A. Sola:J. Appl. Phys. 80 (1996) 46. CrossrefGoogle Scholar
  • 4 A.Sainz, J.Margot, M. C.García and M. D.Calzada: Proc. 17th European Conf. Atomic and Molecular Physics of Ionized Gases, Constante, Romania, 2004. Google Scholar
  • 5 A.Sainz, J.Margot, M. C.García and M. D.Calzada: 12th Int. Congr. Plasma Physics, Nice, France, 2004. Google Scholar
  • 6 J.Torres, J.Jonkers, M. J.van de Sande, J. J. A. M.van der Mullen, A.Gamero and A.Sola:J. Phys. D 36 (2003) L55. CrossrefGoogle Scholar
  • 7 A.Sola, A.Gamero, J.Cotrino, M.Sáez, C.Lao, M. D.Calzada, M. C.Quintero and J.Ballesteros: inICPIG XX, Barga, Italy, ed. V.Palleschi and M.Vaselli (Felice-Editore, Pisa, 1991) p. 1147. Google Scholar
  • 8 J. M.Luque, M. C.Calzada and M.Sáez:J. Phys. B 36 (2003) 1573. CrossrefGoogle Scholar
  • 9 M. C.García, C.Yubero, M. D.Calzada and M. P.Martínez-Jiménez:Appl. Spectrosc.(2004). Google Scholar
  • 10 P.Kepple and H. R.Griem:Phys. Rev. 173 (1968) 317. CrossrefGoogle Scholar
  • 11 M. A.Gigosos and V.Cardeñosos:J. Phys. B 29 (1996) 4795. CrossrefGoogle Scholar
  • 12 C.Trassy and A.Tazzen: Spectrochim. Acta B 54 (1999) 581. CrossrefGoogle Scholar
  • 13 H. A.Lorentz: Proc. R. Acad. Sci. 8 (1906) 591. Google Scholar
  • 14 A. W.Ali and H. R.Griem:Phys. Rev. 140 (1965) A1044. CrossrefGoogle Scholar
  • 15 R.Konjevic and N.Konjevic: Spectrochim. Acta B 52 (1997) 2077. CrossrefGoogle Scholar
  • 16 M.Christova, E.Castaños-Martínez, M. D.Calzada, Y.Kabouzi. J. M.Luque and M.Moisan: Appl. Spectrosc. 58 (2004) 1032. CrossrefGoogle Scholar
  • 17 S.Günter and A.Könies: J. Quant. Spectrosc. Radiat. Transfer 62 (1998) 425. CrossrefGoogle Scholar
  • 18 Y.Kabouzi, M. D.Calzada, M.Moisan, K. C.Tran and C.Trassy:J. Appl. Phys. 91 (2002) 1008. CrossrefGoogle Scholar
  • 19 M.Moisan, E.Etemandi and J. C.Rostaing: French Patent Specif. 2 (1998) 762. Google Scholar
  • 20 C.Boisse-Laporte: Ph. D. Thesis, Université de Paris-Sud, Orsay, France, 1986. Google Scholar
  • 21 H. R.Griem:Spectral Line Broadening by Plasmas (Academic, New York, 1974). Google Scholar
  • 22 C. R.Vidal, J.Cooper and E. W.Smith: Astrophys. J. 25 (1997) 37. CrossrefGoogle Scholar
  • 23 H.Ehrich and D. E.Kelleher:Phys. Rev. A 21 (1980) 319. CrossrefGoogle Scholar
  • 24 C.Thomsen and V.Helbig: Spectrochim. Acta B 46 (1991) 1215. CrossrefGoogle Scholar
  • 25 B. W.Acon, C.Stehlé, H.Zhang and A.Montaser: Spectrochim. Acta B 56 (2001) 527. CrossrefGoogle Scholar
  • 26 M. C.García: Doctoral Thesis, Univeridad de Córdoba, 1999. Google Scholar
  • 27 M. D. CalzadaCanalejo: Doctoral Thesis, Universidad de Sevilla, 1994. Google Scholar
  • 28 M. A.Gigosos, M. A.González and V.Cardeñoso: Spectrochim. Acta B 58 (2003) 1489. CrossrefGoogle Scholar