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Instabilities Of Relativistic Electron Beam In Plasma
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Book Synopsis Instabilities of Relativistic Electron Beam in Plasma by : Valery B. Krasovitskii
Download or read book Instabilities of Relativistic Electron Beam in Plasma written by Valery B. Krasovitskii and published by Nova Publishers. This book was released on 2008 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Handbook on Plasma Instabilities by : Ferdinand F. Cap
Download or read book Handbook on Plasma Instabilities written by Ferdinand F. Cap and published by Academic Press. This book was released on 2013-09-11 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Electromagnetic Effects in Relativistic Electron Beam Plasma Interactions by :
Download or read book Electromagnetic Effects in Relativistic Electron Beam Plasma Interactions written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Relativistic Electron Beam-plasma Instability and Interaction with Electromagnetic Wave by : Johm B. Masten
Download or read book Relativistic Electron Beam-plasma Instability and Interaction with Electromagnetic Wave written by Johm B. Masten and published by . This book was released on 1995 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Intense Beams in Plasmas by : M.V Nezlin
Download or read book Physics of Intense Beams in Plasmas written by M.V Nezlin and published by Routledge. This book was released on 2017-10-19 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Parametric Excitation of Plasma Instabilities with a Density Modulated Relativistic Electron Beam by : Bamandas Basu
Download or read book Parametric Excitation of Plasma Instabilities with a Density Modulated Relativistic Electron Beam written by Bamandas Basu and published by . This book was released on 1974 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis The Relativistic Electron Beam Plasma Heating Experiment by : Michael D. Montgomery
Download or read book The Relativistic Electron Beam Plasma Heating Experiment written by Michael D. Montgomery and published by . This book was released on 1980 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Electromagnetic Instabilities, Filamentation, and Focussing of Relativistic Electron Beams by : Roswell Lee
Download or read book Electromagnetic Instabilities, Filamentation, and Focussing of Relativistic Electron Beams written by Roswell Lee and published by . This book was released on 1974 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Book Synopsis Self Focusing of Relativistic Electron Bunches in Plasma by : Valery B. Krasovitskii
Download or read book Self Focusing of Relativistic Electron Bunches in Plasma written by Valery B. Krasovitskii and published by Nova Publishers. This book was released on 2008 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Collisional Effects on the Electromagnetic Instability for a Relativistic Electron Beam Penetrating a Plasma by : Toshio Okada
Download or read book Collisional Effects on the Electromagnetic Instability for a Relativistic Electron Beam Penetrating a Plasma written by Toshio Okada and published by . This book was released on 1980 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Filamentary Instability of a Relativistic Electron Beam by : Kim Molvig
Download or read book Filamentary Instability of a Relativistic Electron Beam written by Kim Molvig and published by . This book was released on 1975 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interaction of Electromagnetic Waves with Electron Beams and Plasmas by : C. S. Liu
Download or read book Interaction of Electromagnetic Waves with Electron Beams and Plasmas written by C. S. Liu and published by World Scientific. This book was released on 1994 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of electromagnetic waves with matter has always been a fascinating subject of study. As matter in the universe is mostly in the plasma state, the study of electromagnetic waves in plasmas is of importance to astrophysics, space physics and ionospheric physics. The physics of electromagnetic wave interacting with electron beams and plasmas also serves as a basis for coherent radiation generation such as free electron laser and gyrotron and advanced accelerators. This monograph aims at reviewing the physical processes of linear and nonlinear collective interactions of electromagnetic waves with electron beams and unmagnetized plasmas.
Book Synopsis Influence of Electromagnetic Effects on the Two Stream Instability in a Relativistic Electron Beam by : Han S. Uhm
Download or read book Influence of Electromagnetic Effects on the Two Stream Instability in a Relativistic Electron Beam written by Han S. Uhm and published by . This book was released on 1984 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper investigates the influence of electromagnetic effects on the two stream instability in a relativistic electron beam propagating through a collisionless plasma channel. The analysis is carried out within the framework of a macroscopic cold fluid model in which beam and plasma fluid element is in a laminar flow. Axisymmetric electromagnetic stability properties are calculated for the case in which the equilibrium beam and plasma density profiles are rectangular. Consistent with the two stream instability, the perturbed fields are assumed to be the transverse magnetic mode. The resulting eigenvalue equation for the perturbed axial electric field del E sub z is solved to give a closed algebraic dispersion relation for the complex eigenfrequency omega. This dispersion relation is solved and it is shown that the electromagnetic effects have a strong stabilizing influence for a relativistic electron beam with gamma sub b” 1, where gamma sub b is the relativistic mass ratio of beam electrons. For example, the critical beam current for instability is proportional to the electromagnetic current enhancement factor xi = (gamma sub b + 1)/2. Thus, the critical current from the electromagnetic calculation increases more drastically with the beam energy than that from the electrostatic approximation.
Book Synopsis High Power Relativistic Electron Beams in Plasma and in Vacuum by :
Download or read book High Power Relativistic Electron Beams in Plasma and in Vacuum written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this review we shall discuss the possibilities of using high power relativistic electron beam for plasma heating In open systems. We shall consider the following three groups of questions: 1. Beam transport in a vacuum in a strong magnetic field, equilibrium, stability, and critical beam currents in vacuum; 2. Beam transport in plasma, charge and current neutralization of the beam; plasma heating by a reverse current, macroscopic beam instabilities in plasma; and 3. Theory of collective beam relaxation in plasma, including quasi-linear and nonlinear relaxation models; the role of plasma instability; macroscopic affects during beam relaxation. The review encompasses results published up to September 1973.
Book Synopsis Simulations of the Effects of Mobile Ions on the Relativistic Beam-plasma Instability for Intense Beams by :
Download or read book Simulations of the Effects of Mobile Ions on the Relativistic Beam-plasma Instability for Intense Beams written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle-in-cell simulations of the beam-plasma instability for intense relativistic electron beams in dense plasmas show rapid heating of the electrons to multi-kilovolt temperatures. The resulting hydrodynamic motion of the plasma results in density gradients that degrade the interaction. Heat flow out of the plasma is found in some instances to limit the gradient formation process.
Book Synopsis Heating of a Dense Plasma with an Intense Relativistic Electron Beam by :
Download or read book Heating of a Dense Plasma with an Intense Relativistic Electron Beam written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A dense (approx. 1017 cm−3) plasma has been heated via the relativistic two-stream instability using a 3 MeV, intense (5 x 105 A/cm2) electron beam. Evidence for heating has been obtained with diamagnetic loops, thin-foil witness plates, and a 2-channel, broad-band soft x-ray detector. Measurements of energy loss from the beam using calorimetry techniques have been attempted. The measured strong dependence of heating on beam transverse temperature and the very short interaction length (4 cm) are consistent with beam-plasma coupling due to the relativistic electron-electron two-stream instability. Soft x-ray measurements made100 ns after the beam pulse are consistent with a plasma temperature
Book Synopsis Equilibrium and Nonlocal Stability Properties of Bounded Relativistic Electron Beam-plasma Systems by : Paul Francis Ottinger
Download or read book Equilibrium and Nonlocal Stability Properties of Bounded Relativistic Electron Beam-plasma Systems written by Paul Francis Ottinger and published by . This book was released on 1977 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:
