Physics
Scientific paper
Apr 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979jgr....84.1442i&link_type=abstract
Journal of Geophysical Research, vol. 84, Apr. 1, 1979, p. 1442-1452.
Physics
2
Earth Ionosphere, Electric Charge, Electron Beams, Gas Injection, Nitrogen Plasma, Plasma-Particle Interactions, Amps (Satellite Payload), Earth Magnetosphere, Echo Satellites, Electron Accelerators, Electron Emission, Gas Dynamics, Photometers, Rocket Exhaust, Telemetry
Scientific paper
The interaction of 114 moles of neutral N2 and a 40-kV, 80 mA electron beam was studied during the Echo IV rocket flight. Neutralizing return currents to the rocket body preferentially followed a route back through the region where the electron beam interacted with the cloud. Photometric observations of a complex luminous discharge accompanying beam injection are reported. Observations of 3914-A emission produced by the beam indicated a maximum neutral N2 number density of nearly 10 to the 15th power per cu cm. An oscillatory discharge with a frequency somewhat lower than the N2 (+) ion gyrofrequency was noted at one point.
Israelson G. A.
Winckler John R.
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