Plasma effects of active ion beam injections in the ionosphere at rocket altitudes

Details Plasma effects of active ion beam injections in the ionosphere at rocket altitudes Plasma effects of active ion beam injections in the ionosphere at rocket altitudes

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12....1a&link_type=abstract

(Active experiments in space; Proceedings of the Topical Meeting of the Interdisciplinary Scientific Commission D /Meeting D3/ o

Physics

Plasma Physics

1

Earth Ionosphere, Field Aligned Currents, Ion Beams, Plasma Generators, Space Plasmas, E Region, Earth Magnetosphere, Energetic Particles, F Region, Wave-Particle Interactions

Scientific paper

Data from ARCS rocket ion beam injection experiments are primarily discussed. There are three results from this series of active experiments that are of particular interest in space plasma physics. These are the transverse acceleration of ambient ions in the large beam volume, the scattering of beam ions near the release payload, and the possible acceleration of electrons very close to the plasma generator which produce intense high frequency waves. The ability of 100 ma ion beam injections into the upper E and F regions of the ionosphere to produce these phenomena appear to be related solely to the process by which the plasma release payload and the ion beam are neutralized. Since the electrons in the plasma release do not convect with the plasma ions, the neutralization of both the payload and beam must be accomplished by large field-aligned currents (milliamperes/square meter) which are very unstable to wave growth of various modes.

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