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Instabilities of Relativistic Electron Beam in Plasma

Instabilities of Relativistic Electron Beam in Plasma
Author: Valery B. Krasovitskii
Publisher: Nova Publishers
Total Pages: 234
Release: 2008
Genre: Electron beams
ISBN: 9781600215155

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This book is devoted to the non-linear theory of the collective interaction between a modulated beam of relativistic charged particles and narrow electromagnetic and Langmuir wave packets in plasma or gas slow-wave systems. Regular oscillations excited by a relativistic beam under the conditions of Cherenkov resonance and the anomalous Doppler effect can be used to generate coherent microwave radiation and accelerate charged particles in plasma.


Handbook on Plasma Instabilities

Handbook on Plasma Instabilities
Author: Ferdinand F. Cap
Publisher: Academic Press
Total Pages: 575
Release: 2013-09-11
Genre: Science
ISBN: 148327098X

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Handbook on Plasma Instabilities, Volume 2 consists of four chapters on plasma instabilities. Chapter 14 discusses the various aspects of microinstabilities. Beam-plasma systems are covered in Chapter 15, while the various stabilization methods are presented in Chapter 16. This book concludes with deliberations on parametric effects in Chapter 17. Other topics discussed include the microinstabilities of a homogeneous unmagnetized plasma; kinetic theory of macroscopic instabilities; basic beam physics; and beam-plasma instabilities. The magnetic field configuration stabilization; macroscopic nonmagnetic stabilization methods; parametric instabilities in homogeneous unmagnetized plasmas; and parametric effects in bounded and inhomogeneous plasmas are also elaborated in this text. This publication is beneficial to students and researchers conducting work on unstable plasma.


Electromagnetic Effects in Relativistic Electron Beam Plasma Interactions

Electromagnetic Effects in Relativistic Electron Beam Plasma Interactions
Author:
Publisher:
Total Pages:
Release: 1985
Genre:
ISBN:

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Electromagnetic effects excited by intense relativistic electron beams in plasmas are investigated using a two-dimensional particle code. The simulations with dense beams show large magnetic fields excited by the Weibel instability as well as sizeable electromagnetic radiation over a significant range of frequencies. The possible relevance of beam plasma instabilities to the laser acceleration of particles is briefly discussed. 6 refs., 4 figs.


Parametric Excitation of Plasma Instabilities with a Density Modulated Relativistic Electron Beam

Parametric Excitation of Plasma Instabilities with a Density Modulated Relativistic Electron Beam
Author: Bamandas Basu
Publisher:
Total Pages: 117
Release: 1974
Genre: Electron beams
ISBN:

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Parametric electrostatic instabilities in a non-relativistic, stationary plasma excited by a monoenergetic, relativistic electron beam with density sinusoidally modulated along the direction of the beam flow have been theoretically investigated using multiple-time-scale perturbation expansion method. The instability occurs due to resonant energy transfer from the negative energy carrying beam-synchronous mode into the positive energy plasma oscillation mode of a uniform beam-plasma system. The resonant coupling occurs in the presence of the density modulation. The linear growth rate and the width of of the unstable spectrum have been determined. It has been found that, for a given beam to plasma density ratio, there exists an upper limit to the initial beam energy for which the instabilities can be excited.


Physics of Intense Beams in Plasmas

Physics of Intense Beams in Plasmas
Author: M.V Nezlin
Publisher: Routledge
Total Pages: 336
Release: 2017-10-19
Genre: Science
ISBN: 1351424432

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Physics of Intense Beams in Plasmas is a comprehensive description of the interaction between extremely intense particle beams and plasmas. The emphasis is on experimental beam-plasma physics, but the necessary theory is also explained-much of which is innovative and original. Central to the book is the discussion of beam instabilities, emphasizing their hydrodynamic nature.


The Relativistic Electron Beam Plasma Heating Experiment

The Relativistic Electron Beam Plasma Heating Experiment
Author: Michael D. Montgomery
Publisher:
Total Pages: 14
Release: 1980
Genre: Plasma density
ISBN:

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An intense (5 x 105 Amp/cm2), relativistic (5 MeV), electron beam will be used to investigate the heating of small volumes (~5 to 10 cm3) of dense plasma (1017-- 1018 electrons/cm3) to kilovolt temperatures via the electrostatic two-stream instability.


Electromagnetic Instabilities, Filamentation, and Focussing of Relativistic Electron Beams

Electromagnetic Instabilities, Filamentation, and Focussing of Relativistic Electron Beams
Author: Roswell Lee
Publisher:
Total Pages: 14
Release: 1974
Genre:
ISBN:

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The authors report nonlinear studies of the Weibel instability of a relativistic electron beam in a plasma. If (n sub b) “(n sub p), the beam splits into self-pinched filaments at density (n sub p). These filaments then recombine into a single dense beam, from which the return current is expelled. A fraction about nu/gamma of the beam energy is lost to magnetic energy, and significant plasma heating occurs. (Author).


Self Focusing of Relativistic Electron Bunches in Plasma

Self Focusing of Relativistic Electron Bunches in Plasma
Author: Valery B. Krasovitskii
Publisher: Nova Publishers
Total Pages: 218
Release: 2008
Genre: Electron beams
ISBN: 9781600215292

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This volume presents the non-linear theory of electrostatic focusing of an electron beam split into bunches under conditions when the plasma permittivity at the modulation frequency is negative and the effective Coulomb force acting on the electron bunches is reversed. Conditions for the spatial equilibrium between the bunch and plasma emission, as well as the dynamics of the formation of focussed bunches, are confirmed by solving (both analytically and numerically) the self-consistent set of equations.