Plasma wave observations during electron beam experiments at high altitudes
dc.contributor.author | Olsen, R.C. | |
dc.contributor.author | Lowery, D.R. | |
dc.contributor.author | Roeder, J.L. | |
dc.date | Dec 01, 1989 | en_US |
dc.date.accessioned | 2018-09-27T00:06:25Z | |
dc.date.available | 2018-09-27T00:06:25Z | |
dc.date.issued | 1989-12 | |
dc.identifier.citation | Journal of Geophysical Research; p. 17267-17; (ISSN 0148-0227); 94 | en_US |
dc.identifier.other | 19900033705 | |
dc.identifier.uri | https://hdl.handle.net/10945/60079 | |
dc.identifier.uri | https://ntrs.nasa.gov/search.jsp?R=19900033705 | |
dc.description.abstract | Electron 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. | en_US |
dc.rights | This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States. | en_US |
dc.title | Plasma wave observations during electron beam experiments at high altitudes | en_US |
dc.type | Article | |
dc.contributor.corporate | Unspecified Center | |
dc.subject.author | ELECTRON BEAMS | en_US |
dc.subject.author | GYROFREQUENCY | en_US |
dc.subject.author | PLASMA WAVES | en_US |
dc.subject.author | SPACE PLASMAS | en_US |
dc.subject.author | SPACECRAFT CHARGING | en_US |
dc.subject.author | ELECTRON GUNS | en_US |
dc.subject.author | PLASMA HEATING | en_US |
dc.subject.author | SATELLITE SOUNDING | en_US |
dc.description.funder | F04701-85-C-0086 | |
dc.description.distributionstatement | Approved for public release; distribution is unlimited. |