Аңдатпа
A model of solitary current filaments formation in a high pressure electronegative gas discharge is proposed. An explicit analytical solution of the balance equation for electrons including stepwise ionization, electron attachment and diffusional losses is obtained. The contracted distribution of electrons in the positive column is found to have a soliton form. The conditions favouring non-thermal plasma contraction are considered. Analytical results are compared successfully with simulation and experimental data.