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An easy way to determine simultaneously the electron density and temperature in high-pressure plasmas by using Stark broadening

2003; Institute of Physics; Volume: 36; Issue: 13 Linguagem: Inglês

10.1088/0022-3727/36/13/101

1361-6463

Jimena Torres, Jeroen Jonkers, M.J. van de Sande, J.J.A.M. van der Mullen, A. Gamero, À. Sola,

Laser-induced spectroscopy and plasma

This paper discusses the possibility of determining, at the same time, both the electron density and temperature in a discharge produced at atmospheric pressure using the Stark broadening of lines spontaneously emitted by a plasma. This direct method allows us to obtain experimental results that are in good agreement with others previously obtained for the same type of discharge. Its advantages and disadvantages compared to other direct methods of diagnostics, namely Thomson scattering, are also discussed.