KINETIC CHARACTERISTICS OF PRODUCTION AND LOSS OF HYDROGEN-ATOMS IN THE POSITIVE-COLUMN OF GLOW-DISCHARGE IN H-2

The production rates and concentration of atoms, the rate coefficients of their heterogeneous loss, and some electrophysical parameters of p lasma are measured in the positive column of a d.c. discharge in H-2. Based on these data, a simultaneous solution of the Boltzmann equation and equations of the vibration kinetics for H-2(X(1)Sigma(g)) and pla sma conduction has shown that vibrationally excited molecules have a s mall effect (both direct and indirect, through the electron energy dis tribution function) on the processes involving electrons. The dissocia tion occurs during disintegration of the b(3)Sigma(u), a(3)Sigma(g)(+) , and c(3)Pi(u) states, which are produced by the electron impact exci tation of X(1)Sigma(g)(V = 0) state; the loss of atoms is due to heter ogeneous recombination proceeding according to the first kinetic order with respect to their concentration.