Using an energy approach to evaluate the parameters of a resonant microwave plasma channel
V.G. Brovkin1, P.V. Vedenin1
1Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow, Russia
Email: brovkin47@mail.ru, pvedenin@ramblerru
Using numerical simulation, we tested and confirmed the hypothesis that, over a wide range of microwave discharge parameters, a thin plasma filament developing along an electric field in free space tends to absorb maximum energy. Analytical expressions were obtained for the main characteristics (plasma electron conductivity and concentration, electric field in the central region, absorbed power, etc.) of the plasma channel at the "maximum" trajectory, allowing us to estimate the parameters of the formed channel. A comparison with existing experimental data was made. Keywords: Maxwell's equations, absorbed energy, resonance, plasma channel conductivity, plasmoid dipole moment.
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