Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
About High Frequency Oscillations Of Electronic Plasma
Download About High Frequency Oscillations Of Electronic Plasma full books in PDF, epub, and Kindle. Read online About High Frequency Oscillations Of Electronic Plasma ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis About High-frequency Oscillations of Electronic Plasma by : A. I. Akhiezer
Download or read book About High-frequency Oscillations of Electronic Plasma written by A. I. Akhiezer and published by . This book was released on 1967 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The paper discusses the interaction of a beam of charged particles with an electron plasma. It is shown that the state of the beam, which is characterized by constant and uniform speed and density, turns out to be unstable. If such a beam goes into a plasma fluctuations in density and speed are formed in it and these are propagated in the form of a wave with increasing amplitude. The longitudinal field connected with it also has the character of a wave with increasing amplitude. (Author).
Book Synopsis High Frequency Properties of Plasma by :
Download or read book High Frequency Properties of Plasma written by and published by . This book was released on 1967 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Collective Oscillations in a Plasma by : A. I. Akhiezer
Download or read book Collective Oscillations in a Plasma written by A. I. Akhiezer and published by Elsevier. This book was released on 2017-07-26 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Series of Monographs in Natural Philosophy: Collective Oscillations in a Plasma, Volume 7 presents specific topics within the general field of radio waves propagation. This book contains five chapters that address the theory of linear oscillations in a plasma, the spectra of the eigen oscillations, and the mechanism of high-frequency heating. The opening chapters deal with the self-consistent fields; development of initial perturbation; dispersion permittivity tensor of a plasma in a magnetic field; effect of thermal motion of particles on low-frequency resonances; excitation of oscillations by modulated azimuthal currents; and cyclotron damping of low-frequency oscillations. The next chapters describe the nature of beam instability, the fluctuations in a free equilibrium plasma, and the current causing scattered waves. A study of the probability of scattering is presented. The concluding chapters are devoted to the scattering of electromagnetic waves in a plasma-beam system and the coefficient of reflection determination. The book can provide useful information to scientists, physicists, students, and researchers.
Book Synopsis High-frequency Oscillations Resulting from the Interaction of an Electron Beam with Plasma by : G. P. Berezina
Download or read book High-frequency Oscillations Resulting from the Interaction of an Electron Beam with Plasma written by G. P. Berezina and published by . This book was released on 1966 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are given of experiments on the detection and study of oscillations developed in a beam and plasma produced as the result of their interaction. The experiments were conducted under conditions where the electron Langmuir frequency of the plasma, was less than the electron cyclotron frequency. The conditions of wave excitation in the beam and plasma, their frequency spectra, phase velocities, amplification factors, electrical field intensity, and absolute values and spectral distribution of excited oscillation power are determined. Experimental results from measurement of frequencies, amplification factors and phase velocities of excited oscillations in the plasma are in satisfactory agreement with calculated data. (Author).
Book Synopsis HIGH-FREQUENCY OSCILLATIONS IN A LOW-PRESSURE DISCHARGE. by :
Download or read book HIGH-FREQUENCY OSCILLATIONS IN A LOW-PRESSURE DISCHARGE. written by and published by . This book was released on 1962 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron plasma oscillations were investigated. The plasma was generated and controlled by an electron beam. The results of the investigation show that the character of the observable oscillations severely vary on the plasma boundaries.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781729283363 Total Pages :44 pages Book Rating :4.2/5 (833 download)
Book Synopsis High-Frequency Instability of the Sheath-Plasma Resonance by : National Aeronautics and Space Adm Nasa
Download or read book High-Frequency Instability of the Sheath-Plasma Resonance written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-10-26 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coherent high frequency oscillations near the electron plasma frequency (omega approx. less than omega sub p) are generated by electrodes with positive dc bias immersed in a uniform Maxwellian afterglow plasma. The instability occurs at the sheath-plasma resonance and is driven by a negative RF sheath resistance associated with the electron inertia in the diode-like electron-rich sheath. With increasing dc bias, i.e., electron transit time, the instability exhibits a hard threshold, downward frequency pulling, line broadening and copious harmonics. The fundamental instability is a bounded oscillation due to wave evanescence, but the harmonics are radiated as electromagnetic waves from the electrodes acting like antennas. Wavelength and polarization measurements confirm the emission process. Electromagnetic waves are excited by electrodes of various geometries (planes, cylinders, spheres) which excludes other radiation mechanisms such as orbitrons or beam-plasma instabilities. The line broadening mechanism was identified as a frequency modulation via the electron transit time by dynamic ions. Ion oscillations at the sheath edge give rise to burst-like RF emissions. These laboratory observations of a new instability are important for antennas in space plasmas, generation of coherent beams with diodes, and plasma diagnostics. Stenzel, R. L. Unspecified Center NAGW-1570...
Book Synopsis The Nonlinear Schrödinger Equation by : Catherine Sulem
Download or read book The Nonlinear Schrödinger Equation written by Catherine Sulem and published by Springer Science & Business Media. This book was released on 2007-06-30 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the gap between the mathematical literature and applications to domains, the authors have chosen to address the problem of wave collapse by several methods ranging from rigorous mathematical analysis to formal aymptotic expansions and numerical simulations.
Book Synopsis Studies of Plasma Oscillations, Quarterly Status Report No. 7 by : Stanford University. Microwave Laboratory
Download or read book Studies of Plasma Oscillations, Quarterly Status Report No. 7 written by Stanford University. Microwave Laboratory and published by . This book was released on 1961 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Collected Papers of L.D. Landau by : D. Ter Haar
Download or read book Collected Papers of L.D. Landau written by D. Ter Haar and published by Elsevier. This book was released on 2013-10-22 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collected Papers of L. D. Landau brings together the collected papers of L. D. Landau in the field of physics. The discussion is divided into the following sections: low-temperature physics (including superconductivity); solid-state physics; plasma physics; hydrodynamics; astrophysics; nuclear physics and cosmic rays; quantum mechanics; quantum field theory; and miscellaneous works. Topics covered include the intermediate state of supraconductors; the absorption of sound in solids; the properties of metals at very low temperatures; and production of showers by heavy particles. This volume is comprised of 100 chapters and begins with Landau's paper on the theory of the spectra of diatomic molecules, followed by his studies on the damping problem in wave mechanics; quantum electrodynamics in configuration space; electron motion in crystal lattices; and the internal temperature of stars. Some of Landau's theories, such as those of stars, energy transfer on collisions, phase transitions, and specific heat anomalies are discussed. Subsequent chapters focus on the structure of the undisplaced scattering line; the transport equation in the case of Coulomb interactions; scattering of light by light; and the origin of stellar energy. This book will be a valuable resource for physicists as well as physics students and researchers.
Book Synopsis The Frequency of Nonlinear Plasma Oscillations by : H. Derfler
Download or read book The Frequency of Nonlinear Plasma Oscillations written by H. Derfler and published by . This book was released on 1961 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The frequency of plane standing waves of electrons moving through a background of infinitely heavy ions is strictly independent of amplitue as long as the electron velocity is a unique function of position. This result is contrary to those presented in recent publications by S. Amer, J. Electronics and Control, 5:105-13, 158 and L. Gold, J. Electronics and Control, 6:548-549, 1959. The frequencies of spherical and cylindicl plsma oscillations, however, do depend upon the amplitude of the oscillation. AsA RESULT, ANY PHASE RELATIONSHIP BETWEEN ELECTRONS EVENTUALLY WILL BE DESTROYED AND THE ELECTRON VELOCIY BECOMES MULTIVALUED. Therefore steady free oscillations do not persist even in a cold plasma. (Author).
Book Synopsis Guide to the Literature on Plasma Oscillations by : Winston Malcolm Gottschalk
Download or read book Guide to the Literature on Plasma Oscillations written by Winston Malcolm Gottschalk and published by . This book was released on 1961 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Oscillations and Noise in Low Pressure DC Discharges by : F. W. Crawford
Download or read book Oscillations and Noise in Low Pressure DC Discharges written by F. W. Crawford and published by . This book was released on 1961 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This analysis is concerned mainly with oscillations and fluctuations which occur either spontaneously, or as a result of deliberate excitation, in low-pressure, hot-cathode plasmas. Experimental observations on high and low frequency effects occurring spontaneously are discussed, and speculations are made on the possible gener-ATION MECHANISMS. In many cases, theories of these mechanisms have been treated in experiments involving deliberate excitation of oscillations, and comparisons are made where relevant. For device applications, and to relieve the difficulties which occur in quantitative experiments in plasma physics, it is important that the sources of spontaneous oscillations should be understood and suppressed if possible. The analysis includes a discussion of work which has been carried out to reduce these effects, and concludes with some suggestions for further lines of attack on the problems. (Author).
Book Synopsis Plasma Oscillations and Associated Electron Transport Within Hall Thrusters by : Aaron Kombai Knoll
Download or read book Plasma Oscillations and Associated Electron Transport Within Hall Thrusters written by Aaron Kombai Knoll and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hall thruster is a type of plasma propulsion system for space vehicle applications. The thrust produced by this device is derived from the momentum of ions, which are accelerated to high exit velocities by the action of an electric field sustained within the plasma. The advantage of the Hall thruster compared to conventional chemical rocket propulsion is a significantly higher exhaust velocity, which leads to better utilization of propellant mass. Since the early days of Hall thruster research, experiments have suggested that the mobility of electrons along the axis of the thruster, perpendicular to an imposed magnetic field, is higher than can be explained by classical collision transfer processes alone. A lack of understanding regarding the mechanism for this enhanced mobility has proved a significant challenge toward the development of reliable simulations capable of predicting the performance of these devices. This thesis examines the role of high frequency plasma oscillations on the electron mobility using a combination of experimental studies on a laboratory Hall thruster, and numerical simulations capable of capturing these oscillations and quantifying their impact on the electron mobility. Two high frequency oscillations were consistently observed in the experiments: a 10MHz mode which appeared strongest in the vicinity of the anode, and a 4.5MHz mode which was strongest in the mid-channel region of the thruster. These were relatively low wave number (long wavelength) oscillations: approximately 6cm for the 4.5MHz oscillation and 3cm for the 10MHz oscillation. The angle of these waves varied considerably depending on the operating conditions of the thruster. They were found to be closely aligned to the axis of the thruster for experiments conducted with Xenon propellant, and were aligned with the circumference of the thruster (in the direction of electron drift) for experiments conducted with Krypton. A Hall thruster simulation, formulated in the axial-azimuthal coordinates of the thruster, was able to capture high frequency oscillations in reasonable agreement with experimental findings: 13MHz near the anode and 5MHz in the mid-channel region of the thruster for 160V discharge conditions. The simulation results demonstrated the crucial role of these oscillations in regulating the electron transport. In the vicinity of these oscillations the electron mobility was increased by a factor of five or more. The central finding of this thesis is that high frequency oscillations in the range 1 - 50MHz can account for the observed discrepancy between classical and experimental electron mobility in the Hall thruster.
Book Synopsis Study on High-Frequency Oscillations in Flow of Coaxial Pulsed Plasma Accelerator by : A. M. Rushailo
Download or read book Study on High-Frequency Oscillations in Flow of Coaxial Pulsed Plasma Accelerator written by A. M. Rushailo and published by . This book was released on 1974 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies of Plasma Oscillations, Quarterly Status Report No. 3 by : Stanford University. Microwave Laboratory
Download or read book Studies of Plasma Oscillations, Quarterly Status Report No. 3 written by Stanford University. Microwave Laboratory and published by . This book was released on 1960 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plasma: The Fourth State of Matter by : D. Frank-Kamenetskii
Download or read book Plasma: The Fourth State of Matter written by D. Frank-Kamenetskii and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea for this book originated with the late Igor Vasil 'evich Kurchatov. He suggested to the author the need for a comprehen sive presentation of the fundamental ideas of plasma physics with out c'omplicated mathematics. This task has not been an easy one. In order to clarify the physical nature of plasma phenomena with out recourse to intricate mathematical expressions it is neces sary to think problems through very carefully. Thus, the book did not come into being by inspiration, but required a considerable ef fort. The aim of the book is to provide a beginning reader with an elementary knowledge of plasma physics. The book is primar ily written for engineers and technicians; however, we have also tried to make it intelligible to the reader whose knowledge ofphys ics is at the advanced-freshman level. To understand the book it is also necessary to have a working knowledge of electricity and magnetism of the kind available in present-:day programs in junior colleges. This book is not intended for light reading. It is designed for the reader for whom plasma physics will be a continuing in terest. We have confidence that such a reader will want to broad en his knowledge by consulting more specialized literature. Thus, we not only include simple expressions but also special important terms.
Book Synopsis Oscillations of an Electron Plasma by : Lev Davidovich Landau
Download or read book Oscillations of an Electron Plasma written by Lev Davidovich Landau and published by . This book was released on 1946 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
