Current enhancement for hose‐unstable electron beams
作者:
R. F. Fernsler,
R. F. Hubbard,
B. Hui,
G. Joyce,
M. Lampe,
Y. Y. Lau,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1986)
卷期:
Volume 29,
issue 9
页码: 3056-3073
ISSN:0031-9171
年代: 1986
DOI:10.1063/1.865467
出版商: AIP
数据来源: AIP
摘要:
An electron beam injected into a conducting medium produces inductive electric fields. These fields drive conduction currents that, for stable beams, oppose the beam current and thereby reduce the total (net) current. For unstable beams that undergo large transverse displacements, the inductive fields can reverse direction and drive conduction current parallel to the beam current. An analytic and numerical treatment of the latter effect is presented to explain current enhancement as observed for electron beams propagating in gases at pressures above 10 Torr.
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