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Transient effects in beam-plasma interactions in a space simulation chamber stimulated by a fast pulse electron gunInterest in the interaction of electron beams with plasma generated by ionization caused by the primary electron beam was stimulated by the need to develop special vacuum tubes to operate in the kMHz frequency region. The experiments of Getty and Smullin (1963) indicated that the interaction of an energetic electron beam with its self-produced plasma resulted in the emission of wave energy over a wide range of frequencies associated with cyclotron and longitudinal plasma instabilities. This enhanced the thermal plasma density in the vicinity of the beam, and the term Beam-Plasma Discharge (BPD) was employed to described this phenomenon. The present investigation is concerned with some of the transient phenomena associated with wave emission during the beam switch-on and switch-off periods. Results are presented on the changes in electron energy spectra on a time scale of tens of milliseconds following beam switch-on. The results are discussed in terms of the beam plasma discharge phenomenon.
Document ID
19830052980
Document Type
Conference Paper
Authors
Raitt, W. J. (Utah State Univ. Logan, UT, United States)
Banks, P. M. (Utah State Univ. Logan, UT, United States)
Denig, W. F. (Utah State University of Agriculture and Applied Science, Logan, UT, United States)
Anderson, H. R. (Rice University Houston, TX, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
PLASMA PHYSICS
Meeting Information
Artificial particle beams in space plasma studies; Advanced Research Institute(Geilo)
Funding Number(s)
CONTRACT_GRANT: NSG-7289
CONTRACT_GRANT: NAS8-34003
Distribution Limits
Public
Copyright
Other