Selfconsistent calculation of the hydrogen plasma parameters. II. Transient plasmas

Abstract

For pt.I see ibid., vol.15, p.621 (1982). For the particular case of a positive column glow discharge hydrogen plasma perturbed by a nanosecond pulse, the system of kinetic equations that includes also equations for electronic concentration and temperature has been numerically solved. One of the remarkable results is that the electron temperature, after initial rapid rise due to the perturbation, drops below the stationary value during the relaxation. The drop is more marked with stronger perturbation, and occurs earlier at higher initial gas pressures.

Electron energy distribution functions and vibrational population densities of excited electronic states in DC discharges through nitrogen

“…The VME thus defined are a system of non-linear ordinary differential equations which are solved with the initial condition (r = 0) of molecular cold gas which implies At high residence times, as the system approaches the steady state, the atom number density cannot be neglected and recombination has to be included in the VME to obtain a true stationary solution. The steady state solution, however, is independent of the initial vibrational distribution assumed (see also Ljepojevic and Labat 1982), and depends only on the discharge parameters and the choice of the various V-V and V-T rate coefficients. The VME are integrated using the algorithm…”