MODELING OF PLASMA-CHEMICAL PROCESSES INITIATED BY A HIGH-POWER MICROWAVE-DISCHARGE IN AIR

A model of kinetic processes in nitrogen-oxygen mixtures excited by a high-power gas discharge was developed. The processes, quenching metas table O(D-1) atoms by nitrogen molecules, are included in the model to describe gas heating. A description of processes forming excited O(S- 1) atoms in the postdischarge period and of associative ionization rea ctions involving these atoms is presented. Taking these reactions into consideration enables one to explain the increase in lifetime of the created plasma. The results of the performed calculations adequately d escribe the available experimental data on the dynamics of air heating in the discharge, the evolution of the concentration of electrons, an d oxygen and nitrogen atoms in the postdischarge period.