Plasma-depleted holes, waves, and energized particles from high-altitude explosive plasma perturbation experiments

Details Plasma-depleted holes, waves, and energized particles from high-altitude explosive plasma perturbation experiments Plasma-depleted holes, waves, and energized particles from high-altitude explosive plasma perturbation experiments

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985jgr....90.4281w&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 90, May 1, 1985, p. 4281-4298. Research supported by the U.S. Defense Nuc

Computer Science

Sound

9

Energetic Particles, Ionospheric Disturbances, Plasma Bubbles, Plasma Oscillations, Plasma Waves, Space Plasmas, Auroras, Barium Ion Clouds, Chemical Release Modules, Electric Field Strength, Ionospheric Ion Density, Ionospheric Sounding, Magnetic Disturbances, Plasma Probes, Rocket-Borne Instruments, Shaped Charges

Scientific paper

The results of high-explosive shaped charge experiments King Crab and Bubble Machines I and II, intended to perturb the ambient plasma and magnetic field, are discussed. The instrumentation was flown above an altitude of 460 km in March 1980 and 1981 and comprised a single-axis dipole electric field detector, a fixed bias cylindrical Langmuir probe, a three-axis attitude magnetometer, and curved plated energetic ion and electron electrostatic analyzer. Among the effects of the explosion which are detailed, emphasis is placed on the creation of an ion-depleted dark hole during the Bubble Machine II experiment; mechanisms explaining the phenomenon are outlined. The auroral intensity ion beams with energies of up to 6.8 keV, observed following the explosion in the field-aligned ion electrostatic analyzer, are suggested to represent an existing ion conic population pitch angle scattered by the released barium into the view of the detector.

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