| Issue |
Europhys. Lett.
Volume 74, Number 6, June 2006
|
|
|---|---|---|
| Page(s) | 1027 - 1031 | |
| Section | Physics of gases, plasmas and electric discharges | |
| DOI | https://doi.org/10.1209/epl/i2006-10045-5 | |
| Published online | 10 May 2006 | |
Oblique electromagnetic instabilities for an ultra relativistic electron beam passing through a plasma
ETSI Industriales, Universidad de Castilla-La Mancha - 13071 Ciudad Real, Spain
Received:
10
March
2006
Accepted:
13
April
2006
We present an investigation of the electromagnetic instabilities
which are triggered when an ultra relativistic electron beam
passes through a plasma. The linear growth rate is computed for
every direction of propagation of the unstable modes, and
temperatures are modelled using simple waterbag distribution
functions. The ultra relativistic unstable spectrum is located
around a very narrow band centered on a critical angle whose value
is given analytically. The growth rate of modes propagating in
this direction decreases like 
.
PACS: 52.35.Qz – Microinstabilities (ion-acoustic, two-stream, loss-cone, beam-plasma, drift, ion- or electron-cyclotron, etc.) / 52.40.Mj – Particle beam interactions in plasmas / 52.35.Hr – Electromagnetic waves (e.g., electron-cyclotron, Whistler, Bernstein, upper hybrid, lower hybrid)
© EDP Sciences, 2006
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