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Further laboratory measurements of the beam-plasma dischargeThe paper presents laboratory measurements of the beam-plasma discharge (BPD) produced when an energetic electron beam traverses an initially neutral gas. The results show that the critical beam current is related to energy, magnetic field, and the system length by an empirical relationship at pressures below 2 times 10 to the -5th power torr. This relationship describes the accumulation of ambient plasma density collisionally produced by the beam to a critical value at which ignition occurs. Additional measurements of the narrow-band cyclotron-related waves observed at beam currents below BPD threshold do not clearly establish whether this instability is a precursor to the BPD.
Document ID
19800037010
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bernstein, W.
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Leinbach, H.
(NOAA, Space Environment Laboratory, Boulder Colo., United States)
Kellogg, P. J.
(National Oceanic and Atmospheric Administration Boulder, CO, United States)
Monson, S. J.
(Minnesota, University Minneapolis, Minn., United States)
Hallinan, T.
(Alaska, University Fairbanks, Alaska, United States)
Date Acquired
August 10, 2013
Publication Date
December 1, 1979
Publication Information
Publication: Journal of Geophysical Research
Volume: 84
Subject Category
Plasma Physics
Accession Number
80A21180
Distribution Limits
Public
Copyright
Other

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