Download or read book Potential Distribution in Collisionless Plasmas in a Weak Magnetic Field written by Hiroyuki Yamasaki and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Time dependent Structure of One dimensional Magnetic Compression Waves in Collisionless Plasmas written by Vernon J. Rossow and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Collisionless Ion Collection by a Sphere in a Weakly Magnetized Plasma written by Leonardo Patacchini and published by . This book was released on 2007 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction between a probe and a plasma has been studied since the 1920s and the pioneering work of Mott-Smith and Langmuir [1], and is still today an active topic of experimental and theoretical research. Indeed an understanding of the current collection process by an electrode is relevant to diverse matters such as Langmuir and Mach-probes calibrations, dusty plasma physics, or spacecraft charging. Recent simulations relying on the ad hoc designed code SCEPTIC have fully addressed the collisionless and unmagnetized problem for a drifting collector idealized as a sphere. SCEPTIC is a 2d/3v hybrid Particle In Cell (PIC) code, in which the ion motion is fully resolved, while the electrons are treated as a Boltzmann distributed fluid [2, 3]. In the present work we tackle the transition between the unmagnetized and the weakly magnetized regime of ion collection by a spherical probe (The mean ion Larmor radius rL> rp) in a collisionless plasma (The ion mean free path Am, fp> rp). When the sphere is at space potential, we demonstrate that the ion current dependence on the background magnetic field B is linear for low B, and provide analytical expressions for this dependence. When the probe potential can not be neglected, the problem shows two distinct scale lengths: A collisionless layer of a few rp close to the probe, followed by a collisional presheath of a few AX, fp. The chosen approach is to resolve the collisionless scale-length with SCEPTIC, while using appropriate outer boundary conditions on the potential and ion distribution function to connect with the unresolved collisional presheath. We present results of our numerical simulations for a wide range of plasma parameters of direct relevance to Langmuir and Mach-probes.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1975 with total page 1024 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Fusion Energy Update written by and published by . This book was released on 1979 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plasma Physics Index written by and published by . This book was released on 1979 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Plasma State written by Juda Shohet and published by Elsevier. This book was released on 2012-12-02 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Plasma State discusses the fundamental principles that describe plasma occurrence. The book reviews the plasma state, collisions, collisional processes, diffusion, mobility, Rutherford scattering, and the collision cross-section. The motion of isolated charged particles occurs in electrical, magnetic, or gravitational fields. During low plasma density and low background gas pressure, the collision frequency is also low. It is during this time that the single particle approach can be studied using a fundamental equation of motion. The text also discusses the problems encountered in the presence of extremely large numbers of particles, moving and interacting with one another. Other topics related to the statistics of collisions and fluid behavior are the collisionless Boltzmann equation, inclusion of collisional processes in statistical descriptions, and the "integrate out" of velocity dependence of the collisionless Boltzmann equation which gives a fluid model of a plasma. The book also describes the different acceleration processes, such as Coulomb collisions, electron or ion-neutral collisions, collective or wave phenomena, that all produce radiation. The text is suitable for students of physics, engineering, atomic physics.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1971 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulence in the Solar Wind written by Roberto Bruno and published by Springer. This book was released on 2016-10-07 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of solar wind turbulence from both the theoretical and observational perspective. It argues that the interplanetary medium offers the best opportunity to directly study turbulent fluctuations in collisionless plasmas. In fact, during expansion, the solar wind evolves towards a state characterized by large-amplitude fluctuations in all observed parameters, which resembles, at least at large scales, the well-known hydrodynamic turbulence. This text starts with historical references to past observations and experiments on turbulent flows. It then introduces the Navier-Stokes equations for a magnetized plasma whose low-frequency turbulence evolution is described within the framework of the MHD approximation. It also considers the scaling of plasma and magnetic field fluctuations and the study of nonlinear energy cascades within the same framework. It reports observations of turbulence in the ecliptic and at high latitude, treating Alfvénic and compressive fluctuations separately in order to explain the transport of mass, momentum and energy during the expansion. Further, existing models are compared with direct observations in the heliosphere. The problem of self-similar and anomalous fluctuations in the solar wind is then addressed using tools provided by dynamical system theory and discussed on the basis of available models and observations. The book highlights observations of Yaglom’s law in solar wind turbulence, which is one of the most important findings in fully developed turbulence and directly related to the long-lasting and still unsolved problem of solar wind plasma heating. Lastly, it includes a short chapter dedicated to the kinetic range of fluctuations, which has recently been receiving more attention from the space plasma community, since this is inherently related to turbulent energy dissipation and consequent plasma heating. It particularly focuses on the nature and role of the fluctuations populating this frequency range, and discusses several model predictions and recent observational findings in this context.
Download or read book NASA Technical Note written by United States. National Aeronautics and Space Administration and published by . This book was released on 1959 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Resonant Ion Acceleration by Oblique Magnetosonic Shock Wave in a Collisionless Plasma written by Yukiharu Ohsawa and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1971 with total page 776 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 Physics of Radio Frequency Plasmas written by Pascal Chabert and published by Cambridge University Press. This book was released on 2011-02-24 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-temperature radio frequency plasmas are essential in various sectors of advanced technology, from micro-engineering to spacecraft propulsion systems and efficient sources of light. The subject lies at the complex interfaces between physics, chemistry and engineering. Focusing mostly on physics, this book will interest graduate students and researchers in applied physics and electrical engineering. The book incorporates a cutting-edge perspective on RF plasmas. It also covers basic plasma physics including transport in bounded plasmas and electrical diagnostics. Its pedagogic style engages readers, helping them to develop physical arguments and mathematical analyses. Worked examples apply the theories covered to realistic scenarios, and over 100 in-text questions let readers put their newly acquired knowledge to use and gain confidence in applying physics to real laboratory situations.
