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Download or read book Fast Wave Current Drive in Reactor Scale Tokamaks written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Moreau
Publisher :
ISBN 13 :
Total Pages : 518 pages
Book Rating : 4.:/5 (318 download)
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 Proceedings of the IAEA Technical Committee Meeting on Fast Wave Current Drive in Reactor Scale Tokamaks written by and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (727 download)
Download or read book Bootstrap and Fast Wave Current Drive for Tokamak Reactors written by and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using the multi-species neoclassical treatment of Hirshman and Sigmar we study steady state bootstrap equilibria with seed currents provided by low frequency (ICRF) fast waves and with additional surface current density driven by lower hybrid waves. This study applies to reactor plasmas of arbitrary aspect ratio. IN one limit the bootstrap component can supply nearly the total equilibrium current with minimal driving power (
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (929 download)
Download or read book Bootstrap and Fast Wave Current Drive for Tokamak Reactors written by and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John C. Wright
Publisher :
ISBN 13 :
Total Pages : 268 pages
Book Rating : 4.:/5 (398 download)
Download or read book Fast Wave Current Drive Modeling in Tokamaks written by John C. Wright and published by . This book was released on 1998 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (683 download)
Download or read book Predictions of Fast Wave Heating, Current Drive, and Current Drive Antenna Arrays for Advanced Tokamaks written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the advanced tokamak program is to optimize plasma performance leading to a compact tokamak reactor through active, steady state control of the current profile using non-inductive current drive and profile control. To achieve these objectives requires compatibility and flexibility in the use of available heating and current drive systems--ion cyclotron radio frequency (ICRF), neutral beams, and lower hybrid. For any advanced tokamak, the following are important challenges to effective use of fast waves in various roles of direct electron heating, minority ion heating, and current drive: (1) to employ the heating and current drive systems to give self-consistent pressure and current profiles leading to the desired advanced tokamak operating modes; (2) to minimize absorption of the fast waves by parasitic resonances, which limit current drive; (3) to optimize and control the spectrum of fast waves launched by the antenna array for the required mix of simultaneous heating and current drive. The authors have addressed these issues using theoretical and computational tools developed at a number of institutions by benchmarking the computations against available experimental data and applying them to the specific case of TPX.
Author :
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.:/5 (318 download)
Download or read book Fusion Technology written by and published by . This book was released on 2000 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (727 download)
Download or read book Simulation of Enhanced Tokamak Performance on DIII-D Using Fast Wave Current Drive written by and published by . This book was released on 1993 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fast magnetosonic wave is now recognized to be a leading candidate for noninductive for the tokamak reactor due to the ability of the wave to penetrate to the hot dense core region. Fast wave current drive (FWCD) experiments on D3D have realized up to 120 kA of rf current drive, with up to 40% of the plasma current driven noninductively. The success of these experiments at 60 MHZ with a 2 MW transmitter source capability has led to a major upgrade of the FWCD system. Two additional transmitters, 30 to 120 NM, with a 2 MW source capability each, will be added together with two new four-strap antennas in early 1994. Another major thrust of the D3-D program is to develop advanced tokamak modes of operation, simultaneously demonstrating improvements in confinement and stability in quasi-steady-state operation. In some of the initial advanced tokamak experiments on D3-D with neutral beam heated (NBI) discharges it has been demonstrated that energy confinement nine can be improved by rapidly elongating the plasma to force the current density profile to be more centrally peaked. However, this high-l[sub i] phase of the discharge with the commensurate improvement in confinement is transient as the current density profile relaxes. By applying FWCD to the core of such a [kappa]-ramped discharge it may be possible to sustain the high internal inductance and elevated confinement. Using computational tools validated on the initial DM-D FWCD experiments we find that such a high-l[sub i] advanced tokamak discharge should be capable of sustainment at the 1 MA level with the upgraded capability of the FWCD system.
Author : D. Moreau
Publisher :
ISBN 13 :
Total Pages : 500 pages
Book Rating : 4.:/5 (255 download)
Download or read book Synergy and Complementarity with LHCD and ECRH written by D. Moreau and published by . This book was released on 1991 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Department of Energy. Division of Magnetic Confinement Systems
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.3/5 (91 download)
Download or read book Steady-state Current Drive in Tokamaks Workshop Summary written by United States. Department of Energy. Division of Magnetic Confinement Systems and published by . This book was released on 1979 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (893 download)
Download or read book Fast-wave Current Drive Modelling for Large Non-circular Tokamaks written by and published by . This book was released on 1990 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is widely recognized that a key element in the development of an attractive tokamak reactor, and in the successful achievement of the mission of ITER, is the development of an efficient steady-state current drive technique. Fast waves in the ion cyclotron range of frequencies hold the promise to drive steady-state currents with the required efficiency and to effectively heat the plasma to ignition. Advantages over other heating and current drive techniques include low cost per watt and the ability to penetrate to the center of high-density plasmas. The primary issues that must be resolved are: can an antenna array be designed to radiate the required spectrum of waves and have adequate coupling properties Will the rf power be efficiently absorbed by electrons in the desired velocity range without unacceptable parasitic damping by fuel ions or [alpha] particles What will the efficiency of current drive be when toroidal effects such as trapped particles are included Can a practical rf system be designed and integrated into the device We have addressed these issues by performing extensive calculations with ORION, a 2-D code, and the ray tracing code RAYS, which calculate wave propagation, absorption and current drive in tokamak geometry, and with RIP, a 2-D code that self-consistently calculates current drive with MHD equilibrium. An important figure of merit in this context is the integrated, normalized current drive efficiency. The calculations that we present here emphasize the ITER device. We consider a low-frequency scenario such that no ion resonances appear in the machine, and a high-frequency scenario such that the deuterium second harmonic resonance is just outside the plasma and the tritium second harmonic is in the plasma, midway between the magnetic axis and the inside edge. In both cases electron currents are driven by combined TTMP and Landau damping of the fast waves.
Author : Stephen J. Wukitch
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (89 download)
Download or read book Experimental Investigation of Low Frequency Current Drive on the Phaedrus-T Tokamak written by Stephen J. Wukitch and published by . This book was released on 1995 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bong G. Hong
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (476 download)
Download or read book Study of Fast Wave Current Drive in a KT-2 Tokamak Plasma written by Bong G. Hong and published by . This book was released on 1996 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 : 9789172839540
Total Pages : 56 pages
Book Rating : 4.8/5 (395 download)
Download or read book Fast Wave Heating and Current Drive in Tokamaks written by and published by . This book was released on 2005 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-03 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
