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HF excited instabilities in space plasmasIt has now become technologically feasible to construct ground-based HF radar systems which can deliver RF energy to the ionospheric plasma, with power densities sufficient to alter the ionospheric electron thermal budget and plasma characteristics. Effects produced by a ground-based transmitter of a power aperture of the order of 10,000 Mw sq m in the frequency range from 4 to 12 MHz are shown in a graph. Another graph presents a profile of electron gas temperature enhancement due to energy deposition by a high power HF transmitter. The conduction of high-power HF ionospheric plasma experiments is discussed. Attention is given to plasma instabilities, wave-particle acceleration effects, spacial and time scales, parametric instabilities, spread-F, and the possibility of placing high power-aperture radars on an orbiting space platform.
Document ID
19780037982
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Carlson, H. C., Jr.
(Texas, University Richardson, Tex., United States)
Duncan, L. M.
(Rice University Houston, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
December 1, 1977
Publication Information
Publication: Radio Science
Volume: 12
Subject Category
Geophysics
Accession Number
78A21891
Funding Number(s)
CONTRACT_GRANT: NSF DES-74-03082-A03
CONTRACT_GRANT: NGL-44-004-130
Distribution Limits
Public
Copyright
Other

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