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An enhancement of plasma density by neutral gas injection observed in SEPAC Spacelab-1 experimentAn enhancement of plasma density observed during a neutral gas injection in Space Experiments with Particle Accelerators by the Space Shuttle/Spacelab-1 is presented. When a plume of nitrogen gas was injected from the orbiter into space, a large amount of plasma was detected by an onboard plasma probe. The observed density often increased beyond the background plasma density and was strongly dependent on the attitude of the orbiter with respect to the velocity vector. This effect has been explained by a collisional interaction between the injected gas molecules and the ionospheric ions relatively drifting at the orbital speed.
Document ID
19860063342
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Sasaki, S.
(Tokyo Univ. Japan)
Kawashima, N.
(Tokyo Univ. Japan)
Kuriki, K.
(Tokyo Univ. Japan)
Yanagisawa, M.
(Tokyo Univ. Japan)
Obayashi, T.
(Tokyo, University Japan)
Kubota, S.
(University of Electro-Communications Tokyo, Japan)
Roberts, W. T.
(Tokyo Univ. Japan)
Reasoner, D. L.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Taylor, W. W. L.
(TRW, Inc. TRW Space and Technology Group, Redondo Beach, CA, United States)
Williamson, P. R.
(Stanford University CA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Journal of Geomagnetism and Geoelectricity
Volume: 37
Issue: 9, 19
ISSN: 0022-1392
Subject Category
Plasma Physics
Accession Number
86A48080
Distribution Limits
Public
Copyright
Other

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