Enhanced current flow through a plasma cloud by induction of plasma turbulence

Details Enhanced current flow through a plasma cloud by induction of plasma turbulence Enhanced current flow through a plasma cloud by induction of plasma turbulence

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987jgr....92.7716h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 92, July 1, 1987, p. 7716-7722.

Physics

6

Electric Generators, Plasma Clouds, Plasma Turbulence, Spacecraft Power Supplies, Tethered Satellites, Electric Current, Electromotive Forces, Ionospheric Currents

Scientific paper

Electrodynamic tethers have been proposed as a means of generating power in low earth orbit. One of the limitations on the power generated is the relatively low electron current that can be collected. It is proposed that the electron current can be significantly enhanced by means of current-induced plasma turbulence in a plasma cloud around the collecting anode. This is examined for the specific case of ion acoustic turbulence. An important conclusion is that the use of plasma clouds in the ionosphere will entail a high-impedance (no instability) and a low-impedance (ion acoustic instability) mode of operation. The low-impedance mode of operation will have two submodes, one steady state and one pulsed.

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