THERMODYNAMIC CONSIDERATIONS AND OPTICAL EMISSION DIAGNOSTICS OF A N2/O2 MIXTURE IN AN INDUCTIVELY COUPLED AIR PLASMA
Résumé
Composition, monatomic spectral line intensities (Cu, O, N) and enthalpy are calculated for thermal and non-thermal equilibrium conditions in a plasma made of three plasma gas mixtures of N2, O2 and an aerosol of copper Sulphate in water. With these mixtures, the excitation and rotational temperatures are measured in an inductively coupled plasma (ICP) torch using monatomic Cu spectral lines and CuO molecular spectra, respectively. It is shown that with the enthalpy it is possible to deduce the electronic translation temperature for other mixtures and that this ICP torch allows to check the diatomic simulated spectra.