Space chamber experiments of ohmic heating by high power microwave from the Solar Power Satellite

Physics

Scientific paper

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Ionospheric Heating, Microwave Transmission, Plasma-Electromagnetic Interaction, Satellite Power Transmission, Solar Power Satellites, Space Plasmas, Electrostatic Probes, Ionospheric Electron Density, Ohmic Dissipation, Resistance Heating, Test Chambers

Scientific paper

The prediction is made that a high power microwave from the Solar Power Satellite (SPS) interacts nonlinearly with the ionospheric plasma. The possible nonlinear interactions comprise ohmic heating and self-focusing and parametric instabilities. A laboratory experiment in a space plasma simulation chamber is carried out in order to examine ohmic heating in detail. A significant microwave heating plasma up to 150% temperature increase is observed with little electron density decrease. It is shown that the temperature increase is not due to the RF breakdown but to the ohmic heating in the simulated ionospheric plasma.

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