Download or read book Co counter Asymmetry in Fast Wave Heating and Current Drive written by and published by . This book was released on 1997 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Full wave ICRF coupling models show differences in plasma response when antenna arrays are phase to drive currents and counter to the plasma current. The source of this difference lies in the natural up- sown asymmetry of the antenna's radiated power spectrum. This asymmetry is due to Hall terms in the wave equation, and occurs even without a poloidal magnetic field. When a poloidal field is included, the up-down asymmetry acquires a toroidal component. The result is that plasma absorption (i.e. antenna loading) is shifted or skewed toward the co-current drive direction, independent of the direction of the magnetic field. When wave are launched to drive current counter the plasma current, electron heating an current profiles are more peaked on axis, and this peaking becomes more pronounce a lower toroidal magnetic fields.
Download or read book Co counter Asymmetry in Fast Wave Heating and Current Drive and Profile Control in NSTX written by and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, full-wave ICRF coupling models are applied to understand the difference in plasma response when antenna arrays are phased to drive currents co and counter to the plasma current. The source of this difference lies in the natural up-down asymmetry of the antenna's radiated power spectrum caused by Hall currents. When a poloidal field is applied, this up-down asymmetry acquires a toroidal component. The result is that plasma absorption (i.e., antenna loading) is shifted or skewed toward the co-current drive direction, independent of the direction of the magnetic field. When waves are launched to drive current counter to the plasma current, electron heating and current profiles are more peaked on axis, and this peaking becomes more pronounced at lower toroidal magnetic fields.
Download or read book Nuclear Fusion written by and published by . This book was released on 2006-12 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio Frequency Power in Plasmas written by Cary B. Forest and published by American Institute of Physics. This book was released on 2003-12-17 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes the most recent research advances in the application of RF power in plasmas, mainly in fusion science.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1390 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 Chemical Abstracts written by and published by . This book was released on 2002 with total page 2018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Fusion written by C.M. Braams and published by CRC Press. This book was released on 2002-06-20 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fusion research started over half a century ago. Although the task remains unfinished, the end of the road could be in sight if society makes the right decisions. Nuclear Fusion: Half a Century of Magnetic Confinement Fusion Research is a careful, scholarly account of the course of fusion energy research over the past fifty years. The authors outline the different paths followed by fusion research from initial ignorance to present understanding. They explore why a particular scheme would not work and why it was more profitable to concentrate on the mainstream tokamak development. The book features descriptive sections, in-depth explanations of certain physical and technical issues, scientific terms, and an extensive glossary that explains relevant abbreviations and acronyms.
Download or read book Active Control of Magneto hydrodynamic Instabilities in Hot Plasmas written by Valentin Igochine and published by Springer. This book was released on 2014-09-15 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the past century, world-wide energy consumption has risen dramatically, which leads to a quest for new energy sources. Fusion of hydrogen atoms in hot plasmas is an attractive approach to solve the energy problem, with abundant fuel, inherent safety and no long-lived radioactivity. However, one of the limits on plasma performance is due to the various classes of magneto-hydrodynamic instabilities that may occur. The physics and control of these instabilities in modern magnetic confinement fusion devices is the subject of this book. Written by foremost experts, the contributions will provide valuable reference and up-to-date research reviews for "old hands" and newcomers alike.
Download or read book International Tokamak Reactor written by International Atomic Energy Agency and published by . This book was released on 1988 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1989 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusion Energy written by and published by . This book was released on 1996 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Role of Alpha Particle Damping in Fast Wave Current Drive and Heating written by and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The impact of energetic alpha particle wave absorption on the range of frequencies for efficient fast wave current drive and heating in a fusion reactor is investigated. The energetic alpha damping decrement is calculated, using a slowing down distribution function, and compared to electron and fuel ion damping over a wide range of frequencies. A combination of strong alpha damping and edge electron absorption in the higher ion harmonic regime limits core fast wave current drive to the lower harmonics (1 = 2,3). 4 refs., 4 figs.
Download or read book Proceedings of the IAEA Technical Committee Meeting on Fast Wave Current Drive in Reactor Scale Tokamaks written by David Moreau and published by . This book was released on 1992 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contributions to High temperature Plasma Physics written by Karl-Heinz Spatschek and published by De Gruyter Akademie Forschung. This book was released on 1994 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is dedicated to Professor G. H. Wolf, director at the Forschungszentrum Jülich/Germany and professor at the Heinrich-Heine-Universität Düsseldorf, on the occasion of his 60th birthday in November 1993. About 40 internationally known experts working in the areas of high-temperature plasma physics and neighbouring fields have contributed either review articles over latest achievements in fusion-related research or original papers in their rapidly advancing fields. The contents of this volume reveals the present state of the art in a compact and concise, but also lucid form. It is understood now that only a synergetic treatment of basic science, material properties, conceptual design, machine-orientated fusion research, diagnostics, and engineering will lead to the one main ultimate goal of high-temperature plasma physics: the ecologically acceptable and economically favourable fusion reactor. The present volume gives an overview over central topics for its achievement. It also shows how theoretical investigations and experimental tests supplement each other. The editors have set great store by introductions into the basic concepts and methods as well as most recent results, both being of great value for actual reserach and education.
Download or read book Reviews of Plasma Physics written by M. Leontovich and published by Springer. This book was released on 1987-05-01 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1996 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Radio Frequency Power in Plasmas written by Tak K. Mau and published by American Inst. of Physics. This book was released on 2001-11-09 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume includes the most recent research advances in the application of RF power in plasmas, mainly in fusion science. Most papers deal with plasma heating and current drive, profile control, and stabilization using RF techniques, with some on RF sources and launchers. New and exciting results from all major tokamak experiments, and from theory and modeling are included. There is also a paper on RFplasma application in space propulsion by an active NASA astronaut. This book is a valuable reference for the RF researchers in fusion and other disciplines.
