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Book Electromagnetic Description of the Two Stream Instability in a Relativistic Electron Beam

Download or read book Electromagnetic Description of 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 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of electromagnetic effects on the two stream instability in a relativistic electron beam propagating through a collisionless plasma channel is examined, and closed algebraic dispersion relation for the complex eigenfrequency w is obtained. It is shown that electromagnetic effects can have a strong stabilizing influence on the two stream instability in a relativistic electron beam, drastically enhancing the critical beam current for instability.

Book Influence of Electromagnetic Effects on the Two Stream Instability in a Relativistic Electron Beam

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 Handbook on Plasma Instabilities

Download or read book Handbook on Plasma Instabilities written by Ferdinand Cap and published by . This book was released on 1978 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Electromagnetic Instabilities  Filamentation  and Focussing of Relativistic Electron Beams

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 Self Focusing of Relativistic Electron Bunches in Plasma

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 Technical Reports Awareness Circular   TRAC

Download or read book Technical Reports Awareness Circular TRAC written by and published by . This book was released on 1987-07 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Nuclear Science Abstracts

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Fusion Energy Update

Download or read book Fusion Energy Update written by and published by . This book was released on 1982-04 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1980 with total page 1280 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Relativistic Electron Beam Propagation

Download or read book Relativistic Electron Beam Propagation written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress achieved in the theoretical understanding of the two-stream instability as it pertains to the propagation of relativistic electron beams through low pressure neutral gases is presented. Research has been performed on both aspects of the stability issue: linear stabilization of the two-stream mode and the nonlinear state of an unstable system.

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book ERDA Energy Research Abstracts

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1682 pages. Available in PDF, EPUB and Kindle. Book excerpt: