THE POSSIBILITY OF LOCAL NONPERTURBING DIAGNOSTICS OF THE ELECTRON COMPONENT IN A GLOW-DISCHARGE PLASMA IN NITROGEN BY CARS SPECTROSCOPY

The possibility is considered of restoring the electron energy distrib ution function (EEDF) in the interval of electron energies 0 < epsilon < 5 eV from measurements of the electric field strength and of gas an d vibrational temperatures by the coherent anti-Stokes Raman scatterin g (CARS) method in a positive column of a glow discharge in molecular nitrogen at 20 < E/N < 80 Td and dissociation degree alpha less than o r equal to 10(-3), when a considerable fraction of electron energy goe s to excitation of vibrational degrees of freedom. The results of calc ulation of drift velocity and electron temperature and of the ratio of transverse diffusion coefficient to electron mobility and EEDF have d emonstrated that the model proposed to restore the EEDF is in good qua ntitative agreement with the experiment depending on the variation of the parameter E/N and vibrational temperature.