Download or read book Electromagnetic Pulse Propagation Through Plasmas written by Charles Eugene Seyler and published by . This book was released on 1972 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Propagation of Electromagnetic Waves in Plasmas written by Vitaliĭ Lazarevich Ginzburg and published by Pergamon. This book was released on 1970 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Much attention has been given also to various sepecific problems, in particular the propagation and generation of waves in the Earth's ionosphere and magnetosphere, in the interplanetary plasma, and in laboratory apparatus, as well as solid-state plasmas." -- p. xiii.
Download or read book Electromagnetic Pulse Propagation in Bounded Plasmas Anisotropic Plasmas and Lossy Plasmas written by John A. Justice (CAPT, USAF.) and published by . This book was released on 1973 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electromagnetic Pulse Propagation in Bounded Plasmas Anisotropic Plasmas and Lossy Plasmas written by John A. Justice and published by . This book was released on 1973 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dispersion of electromagnetic pulses in plasmas is considered. Maxwell's equations are used to determine the wave equation in the Fourier transform domain. Thus, the fields in the time domain are determined by inverse Fourier transformations. Asymptotic solutions for the fields are obtained via the saddlepoint method of integration. The investigation considers three different plasma models. The first model is a homogeneous, isotropic, plasma slab with infinitesimal boundaries. The reflection and transmission coefficients are found to be frequency dependent. When an air-plasma-air problem is considered, the transmission coefficient is almost one and the boundary effects are thus negligible. The second model is a homogeneous, anisotropic plasma where propagation along magnetic field lines is considered. Responses to both double exponential and delta function initial pulse shapes are obtained. The results show significant transient Faraday rotation, even for weak magnetic fields. The third model is a homogeneous, isotropic, lossy plasma. (Modified author abstract).
Download or read book Propagation of Electromagnetic Waves in Plasma written by Vitaliĭ Lazarevich Ginzburg and published by . This book was released on 1962 with total page 856 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Dissipation of Electromagnetic Waves in Plasmas written by N. G. Basov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: This anthology includes articles on experimental studies of the interaction of high-power electromag netic waves with collisionless plasmas and with electrons. The nonlinear interaction of waves with plasmas has been investigated both under free space conditions and in waveguides. A study of secondary-emission dis charges was made in order to ascertain their possible effect on measurements in waveguides. The results presented here on the interaction of high-power waves with plasmas and electrons are of interest to a wide range of physicists and engineers concerned with various questions on the interaction of electromagnetic radiation with plasmas, including microwave heating of plasmas and laser fusion. v CONTENTS An Experimental Investigation of Nonlinear Dissipation of Electromagnetic Waves in Inhomogeneous Collisionless Plasmas - G.M. Batanov and V.A. SHin ... 1 Collisionless Absorption of Electromagnetic Waves in Plasmas and "Slow" Nonlinear Phenomena - V. 1. Barinov, 1. R. Gekker, V.A. Ivanov, and D.M. Karfidov. ... 25 ... Nonlinear Effects in the Propagation of Electron Plasma Waves in an Inhomogeneous Plasma Layer - V.A. SHin ..." ... 53 A Study of Secondary-Emission Microwave Discharges with Large Electron Transit Angles - L.V. Grishin, A.A. Dorofeyuk, 1. A. Kossyi, G.S. Luk'yanchikov, and M.M. Savchenko ... ... 63 ...
Download or read book Experimental Investigation of Electromagnetic Pulse EMP Propagation in a Conduction Plasma written by R. N. Carlile and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electromagnetic pulse (EMP) generated by a nuclear detonation has been the subject of extensive study. Computer codes have been developed which attempt to model the generation and propagation of the EMP due to both a high altitude and low altitude detonation. In some of these codes, the current density term which appears in Maxwell's equations due to conduction currents of secondary electons is modeled as a function of conductivity which is spatially and time dependent. A more complete description of the conduction currents is given by the familar fluid transport equations for mass, momentum and energy, which are collectively called the swarm equation. (Author).
Download or read book A Research Program on Ultrawideband Electromagnetic Pulse Propagation Through the Ionosphere written by and published by . This book was released on 2010 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research done under the AFOSR grant "A Research Program on Ultrawideband Electromagnetic Pulse Propagation Through the Ionosphere" lies in the following three areas: The description of ultra-wideband pulse propagation through a homogeneous, lossy plasma. Ultra-wideband pulse propagation through a material whose dielectric permittivity may be characterized as a Debye model with static levels of conductivity. The effect of conductivity on the peak amplitude of the Brillouin precursor. The significant work accomplished in each of these areas is presented in the following summary.
Download or read book The Propagation of Electromagnetic Waves in Plasma written by V. L. Ginzburg and published by . This book was released on 1964 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Propagation of electromagnetic waves in plasma written by V. L. Ginzburg and published by . This book was released on 1974 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electrodynamics of Density Ducts in Magnetized Plasmas written by I G Kondratiev and published by CRC Press. This book was released on 2019-08-16 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a systematic and self-contained treatment of excitation, propagation and re- emission of electromagnetic waves guided by density ducts in magnetized plasmas, this book describes in detail the theoretical basis of the electrodynamics of ducts. The classical dielectric-waveguide theory in open guiding systems in magnetoplasma is subjected to rigorous generalization. The authors emphasize the conceptual physical and mathematical aspects of the theory, while demonstrating its applications to problems encountered in actual practice. The opening chapters of the book discuss the underlying physical phenomena, outline some of the results obtained in natural and artificial density ducts, and describe the basic theory crucial to understanding the remainder of the book. The more specialized and complex topics dealt with in subsequent chapters include the theory of guided wave propagation along axially uniform ducts, finding the field excited by the source in the presence of a duct, excitation of guided modes, the asymptotic theory of wave propagation along axially nonuniform ducts, and mode re-emission from a duct. The full wave theory is used throughout most of the book to ensure consistency, and the authors start with simpler cases and gradually increase the complexity of the treatment.
Download or read book An Experimental Study of the Nonlinear Propagation of an Electromagnetic Pulse Through the Ionosphere written by and published by . This book was released on 1976 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is concerned with the experimental investigation of EMP propagation through the D-region of the ionosphere. High and low amplitude EMP signals can propagate into space and pose a potential threat to satellites. The Air Force Weapons Laboratory (AFWL) had developed a theory which predicts that when an EMP propagates through the D-region of the ionosphere, that considerable energy can be absorbed from this pulse, thus reducing its potential threat. We have built a plasma machine in which pulse propagation in the ionosphere can be simulated. A TEM waveguide is immersed in a nitrogen plasma. We apply a pulse simulating an EMP to the input and observe the received signal at the output. A probe, which can measure the electron distribution function, allows us to monitor the electron temperature. Thus, energy absorbed from the pulse and electron temperature can be monitored. Other diagnostic systems allow many other quantities to be monitored.
Download or read book Nonlinear Theory of Strong Electromagnetic Wave plasma Interactions written by O. N. Krokhin and published by Nova Science Publishers. This book was released on 1995 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiments and Numerical Simulations of Electromagnetic Wave Propagation in Plasma Varying Rapidly in Space and Time written by and published by . This book was released on 1993 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the electromagnetic wave propagating in a fast growing plasma is studied experimentally and numerically. Theoretical models are developed to assist the numerical simulations. The plasma media involved in the study is classified into two categories, (1) the plasma density varies both temporally and spatially; (2) the plasma density is a function of time only. It is shown that the results of the numerical simulations based on the theoretical models agree well with those of the experiments. The agreement validates the developed theoretical models which can be used to guide and understand the future experiments on high power microwave pulse propagation and the future experiments for developing practical plasma devices. This study shows that the spectrum of a microwave will be modified while propagating through a fast growing plasma.
Download or read book Electromagnetic and Optical Pulse Propagation 2 written by Kurt E. Oughstun and published by Springer Science & Business Media. This book was released on 2010-07-23 with total page 841 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electromagnetic & Optical Pulse Propagation presents a detailed, systematic treatment of the time-domain electromagnetics with application to the propagation of transient electromagnetic fields (including ultrawideband signals and ultrashort pulses) in homogeneous, isotropic media which exhibit both temporal frequency dispersion and attenuation. The development is mathematically rigorous with strict adherence to the fundamental physical principle of causality. Approximation methods are based upon mathematically well-defined asymptotic techniques that are based upon the saddle point method. A detailed description is given of the asymptotic expansions used. Meaningful exercises are given throughout the text to help the reader‘s understanding of the material, making the book a useful graduate level text in electromagnetic wave theory for both physics, electrical engineering and materials science programs. Both students and researchers alike will obtain a better understanding of time domain electromagnetics as it applies to electromagnetic radiation and wave propagation theory with applications to ground and foliage penetrating radar, medical imaging, communications, and the health and safety issues associated with ultrawideband pulsed fields. Volume 2 presents a detailed asymptotic description of plane wave pulse propagation in dielectric, conducting, and semiconducting materials as described by the classical Lorentz model of dielectric resonance, the Rocard-Powles-Debys model of orientational polarization, and the Drude model of metals. The rigorous description of the signal velocity of a pulse in a dispersive material is presented in connection with the question of superluminal pulse propagation.
Download or read book Attenuation and Refraction of an Electromagnetic Wave in an Electron Beam Generated Plasma written by Nathaniel P. Lockwood and published by . This book was released on 2001-02 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificially generated plasmas may be employed to alter the propagation characteristics of electromagnetic waves. The purpose of this report is to study the propagation of electromagnetic waves in an electron beam generated plasma. To understand the physics related to this concept requires the development of computational tools dealing with a plasma created by an electron beam, an assessment of the temporal and spatial evolution of the plasma, and a characterization of the refraction and attenuation of electromagnetic (EM) waves in a collisional plasma. Three computer programs were developed to characterize the effectiveness of an electron beam generated plasma in refracting and attenuating an EM wave. The spatial extent and density distribution of a plasma generated by a relativistic electron beam were determined using an axisymmetric Monte Carlo model. This plasma density distribution was used as a source term in the second code, a temporal solution of the plasma evolution based on a time dependent analysis of the plasma rate equations. The third code developed, evaluates the attenuation and refraction of an EM wave in the resulting plasma by using a ray tracing method based on the eikonal approach of Sommerfeld. The theoretical foundation and validation procedures are presented for each program. A limited exploration of the dependence of the plasma distribution on neutral densities and the electron beam energies was performed. For neutral densities corresponding to 5 km altitude, the plasma longitudinal extent ranged from 52 to 868 cm and the radial extent ranged from 18 to 292 cm for initial electron energies between 100 keV and 1 MeV respectively. Plasma chemistry plays a critical role in determining the electron plasma density and dictates the beam format required to achieve a desired level of EM wave attenuation.
Download or read book Electromagnetic Wave Propagation and Radiation Through Plasmas written by Rama Nohar Singh and published by . This book was released on 1973 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report includes the study of electromagnetic wave propagation and radiation through plasmas. The transient response of short duration electromagnetic pulses has been studied in order to investigate certain properties of the reflecting layers. The study of transient electromagnetic wave propagation was extended to investigate certain properties of laboratory plasma. It is argued and shown that such a study could be of great diagnostic value. Further, in the third section of this report the radiation properties of antennas immersed in plasmas have been studied and their diagnostic features have been shown. With a view to show the superiority of helical antenna over other antennas used in satellites a study was carried out and is included in section four. The polarization features and modes of radiation of helix make its use very handy in satellite transmission. Certain studies regarding the range determination accounting for the effect of plasma scattering was carried out and is included in fifth section of this report. (Author).
