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Plasma wave observations during electron beam experiments at high altitudesElectron beam experiments on the nearly geosynchronous P78-2 satellite conducted in 1979 resulted in observations of intense radiation near the local electron gyrofrequency. These signals resembled naturally occurring f(ce) waves during the same period. The amplitude of the simulated waves depended upon beam parameters. During 50-eV beam operations, current levels of 10 microamps produced strong emissions. Current levels of 1 microamp and 100 microamps did not. These emissions correspond in time to previously reported observations of electron distributions, which suggest heating of the local thermal plasma. Sufficient power is in the observed emissions to explain some aspects of the heated electron distributions observed during the experiments.
Document ID
19900033705
Document Type
Reprint (Version printed in journal)
Authors
Olsen, R. C. (Naval Postgraduate School Monterey, CA, United States)
Lowery, D. R. (U.S. Naval Postgraduate School Monterey, CA, United States)
Roeder, J. L. (Aerospace Corp. Space Science Laboratory, Los Angeles, CA, United States)
Date Acquired
August 14, 2013
Publication Date
December 1, 1989
Publication Information
Publication: Journal of Geophysical Research
Volume: 94
ISSN: 0148-0227
Subject Category
GEOPHYSICS
Funding Number(s)
CONTRACT_GRANT: F04701-85-C-0086
Distribution Limits
Public
Copyright
Other