Obliquely propagating whistler instability in an inhomogeneous plasma penetrated by a helical electron beam

1983 ◽  
Vol 26 (11) ◽  
pp. 3350 ◽  
Author(s):  
V. K. Jain
Keyword(s):  
Electron Beam ◽  
Inhomogeneous Plasma ◽  
Helical Electron Beam

Experimental study of the possibility to increase the pitch factor of an intense relativistic helical electron beam

2008 ◽  
Vol 51 (10) ◽  
pp. 772-779 ◽  
Author(s):  
E. V. Ilyakov ◽  
I. S. Kulagin ◽  
V. N. Manuilov ◽  
A. S. Shevchenko
Keyword(s):  
Experimental Study ◽  
Electron Beam ◽  
Pitch Factor ◽  
Helical Electron Beam

scholarly journals Electron beam relaxation in inhomogeneous plasmas

2013 ◽  
Vol 31 (8) ◽  
pp. 1379-1385 ◽  
Author(s):  
A. Voshchepynets ◽  
V. Krasnoselskikh
Keyword(s):  
Electron Beam ◽  
Beam Energy ◽  
Electron Beams ◽  
Inhomogeneous Plasma ◽  
Density Fluctuations ◽  
Langmuir Waves ◽  
Wave Trapping ◽  
Beam Plasma ◽  
Beam Plasma Instability ◽  
Accelerated Particles

Abstract. In this work, we studied the effects of background plasma density fluctuations on the relaxation of electron beams. For the study, we assumed that the level of fluctuations was so high that the majority of Langmuir waves generated as a result of beam-plasma instability were trapped inside density depletions. The system can be considered as a good model for describing beam-plasma interactions in the solar wind. Here we show that due to the effect of wave trapping, beam relaxation slows significantly. As a result, the length of relaxation for the electron beam in such an inhomogeneous plasma is much longer than in a homogeneous plasma. Additionally, for sufficiently narrow beams, the process of relaxation is accompanied by transformation of significant part of the beam kinetic energy to energy of accelerated particles. They form the tail of the distribution and can carry up to 50% of the initial beam energy flux.

Transition radiation of modulated electron beam in strongly inhomogeneous plasma

1994 ◽  
Vol 37 (2) ◽  
pp. 112-115
Author(s):  
I. A. Anisimov ◽  
A. A. Zubarev ◽  
I. Yu. Kotlyarov ◽  
S. M. Levitskii
Keyword(s):  
Electron Beam ◽  
Transition Radiation ◽  
Inhomogeneous Plasma
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