Computer Science – Sound
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986jgr....91..287h&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Jan. 1, 1986, p. 287-303. DFVLR-supported research.
Computer Science
Sound
27
Beam Injection, Collisionless Plasmas, Ion Beams, Ionospheric Sounding, Space Plasmas, Beam Neutralization, Ionospheric Currents, Ionospheric Electron Density, Magnetic Variations, Plasma Density, Xenon
Scientific paper
Results are given of ion beam injection experiments performed in the auroral ionosphere in connection with the German Sounding Rocket Project Porcupine. A heavy (xenon) ion beam was injected into the collisionless ionospheric plasma approximately perpendicular to the ambient magnetic field at altitudes from 190 km to about 450 km. The beam propagates nearly undistorted across the plasma because it is essentially depolarized; at the same time the beam is not current neutralized. This unexpected behavior poses the interconnected problems of how the beam manages to become charge neutralized, how current closure is maintained, and what is the mechanism of depolarization.
Bauer Otto H.
Bush Richard
Haerendel Gerhard
Haeusler Bernd
Treumann Rudolf A.
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