THE CHOICE OF THE FRANCK-CONDON-FACTORS DATABASE FOR CALCULATING KINETIC CHARACTERISTICS OF LOW-TEMPERATURE NITROGEN PLASMA

The influence of the selection of the Franck-Condon-factors database o n electron energy distribution in a low-temperature nitrogen plasma wa s discussed. Databases were formed by quantum-mechanical calculations of relative probabilities of electron-vibrational transitions in an N2 molecule using the models of harmonic oscillator, anharmonic Morse os cillator, and RKR interaction potential for N atoms. It was shown that electron energy distribution is not very sensitive to the interaction potential in a molecule. It was also found that values for some high- threshold rate coefficients at profound vibrational disequilibrium dep end a great deal on the careful consideration of the role of upper vib rational levels of the ground electronic state in the formation of ele ctronically excited molecules.