Quenching of the beam-plasma instability by large-scale density fluctuations in 3 dimensions

Solar Physics ◽  
1985 ◽  
Vol 96 (1) ◽  
Author(s):  
L. Muschietti ◽  
M.V. Goldman ◽  
D. Newman
Keyword(s):  
Large Scale ◽  
Plasma Instability ◽  
Density Fluctuations ◽  
Beam Plasma ◽  
Beam Plasma Instability

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.

Modulation of proton beams by relativistic electron beam-plasma instability

2018 ◽  
Vol 25 (10) ◽  
pp. 102104 ◽  
Author(s):  
Xiao-Juan Wang ◽  
Zhang-Hu Hu ◽  
Yong-Tao Zhao ◽  
You-Nian Wang
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Plasma Instability ◽  
Proton Beams ◽  
Beam Plasma ◽  
Beam Plasma Instability ◽  
Electron Beam Plasma

scholarly journals EFFECT OF A BOUNDARY ON THE BEAM PLASMA INSTABILITY

1969 ◽  
Author(s):  
Jr. Evans ◽  
Jackson Kenneth ◽  
E. A.
Keyword(s):  
Plasma Instability ◽  
Beam Plasma ◽  
Beam Plasma Instability

scholarly journals Reanalysis of the beam-plasma instability using the Dyson-like equation formalism

2019 ◽  
Vol 127 (2) ◽  
pp. 25002 ◽  
Author(s):  
Nakia Carlevaro ◽  
Francesco Finelli ◽  
Giovanni Montani
Keyword(s):  
Plasma Instability ◽  
Beam Plasma ◽  
Beam Plasma Instability
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