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Ion resonances and ELF wave production by an electron beam injected into the ionosphere - ECHO 6Two effects observed with electron antennas ejected from a sounding rocket launched into the ionosphere in March 1983 carrying electron beam guns are discussed. The sensor packages were ejected and travelled parallel to the vehicle trajectory. Electric potentials were measured between the single probes and a plasma diagnostic package while the gun injected electrons into the ionosphere in perpendicular and parallel 1 kHz directions. Signal pulses over the dc-1250 kHz range were detected. A kHz gun frequency caused a signal that decreased by two orders of magnitude between 45-90 m from the beam field line. However, the signal was detectable at 1 mV/m at 120 m, supporting earlier data that indicated that pulsed electron beams can cause ELF waves in space. Beam injection parallel to the magnetic field produced an 840 Hz resonance that could be quenched by activation of a transverse beam.
Document ID
19840065491
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Winckler, J. R.
(Minnesota Univ. Minneapolis, MN, United States)
Steffen, J. E.
(Minnesota Univ. Minneapolis, MN, United States)
Malcolm, P. R.
(Minnesota Univ. Minneapolis, MN, United States)
Erickson, K. N.
(Minnesota Univ. Minneapolis, MN, United States)
Abe, Y.
(Minnesota Univ. Minneapolis, MN, United States)
Swanson, R. L.
(Minnesota, University Minneapolis, MN, United States)
Date Acquired
August 12, 2013
Publication Date
September 1, 1984
Publication Information
Publication: Journal of Geophysical Research
Volume: 89
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
84A48278
Funding Number(s)
CONTRACT_GRANT: NSG-5088
Distribution Limits
Public
Copyright
Other

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