Computer Science – Performance
Scientific paper
Mar 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....86.1437k&link_type=abstract
Journal of Geophysical Research, vol. 86, Mar. 1, 1981, p. 1437-1446.
Computer Science
Performance
27
Barium, Geomagnetism, Metallic Plasmas, Plasma Waves, Plasma-Particle Interactions, Space Plasmas, Ion Cyclotron Radiation, Magnetohydrodynamic Waves, Metal Ions, Oblique Shock Waves, Plasma Resonance
Scientific paper
The results of a barium plasma injection experiment using seven shaped charges are presented. The technical objectives were to investigate the wave-particle plasma interactions resulting from the injection of a dense barium plasma perpendicular to the geomagnetic field; to study the electron heating and subsequent ambient excitations resulting from such an injection; to examine plasma striation mechanisms concurrently in collisional and collisionless environments; and to evaluate the engineering design and performance of the sevenfold larger shaped-charge payload. Ion-cyclotron waves and lower-hybrid resonance emissions were positively identified in the data. Alfven waves and an oblique shock wave in the ambient plasma, and ion-acoustic waves in the barium plasma were tentatively identified. Highly structured emissions occurred between 500 Hz and 2.5 kHz for several seconds beginning 17 seconds after the explosion. The wave mode responsible for these structured emissions has not yet been identified.
Koons Harry C.
Pongratz Morris B.
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