Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Stability of Kinetic Ballooning and Drift Type Modes in Tokamaks with Negative Shear
Author: Current Trends in International Fusion Research
Author: Roger RamanPublisher: NRC Research Press
ISBN: 0660198274
Category : Science
Languages : en
Pages : 396
Book Description
Fusion Energy 1996
Author: Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 1030
Book Description
Proceedings of the Sixteenth International Conference, formerly called the International Conference on Plasma Physics and Controlled Nuclear Fusion Research, Montreal, 7-11 October 1996. The papers presented reflect the excellent progress achieved since the last conference in Seville 1994. Among many other achievements, the Tokamak Fusion Test Reactor has produced over 10 MW of fusion power, the JT-60U experiment has demonstrated plasma conditions equivalent to breakeven, the reversed shear mode has been demonstrated, low aspect ratio tokamaks have produced promising results and plans have been drawn up for powerful new inertial confinement fusion experiments.
Fusion Energy
Author: Kinetic Ballooning Modes at the Tokamak Transport Barrier with Negative Magnetic Shear
Author: Kinetic Analysis of MHD Ballooning Modes in Tokamaks
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A comprehensive analysis of the stability properties of the appropriate kinetically generalized form of MHD ballooning modes together with the usual trapped-particle drift modes is presented. The calculations are fully electromagnetic and include the complete dynamics associated with compressional ion acoustic waves. Trapped-particle effects along with all forms of collisionless dissipation are taken into account without approximations. The influence of collisions is estimated with a model Krook operator. Results from the application of this analysis to realistic tokamak operating conditions indicate that unstable short-wavelength modes with significant growth rates can extend from .beta. = 0 to value above the upper ideal-MHD-critical-beta associated with the so-called second stability regime. Since the strength of the relevant modes appears to vary gradually with .beta., these results support a soft beta limit picture involving a continuous (rather than abrupt or hard) modification of anomalous transport already present in low-.beta.-tokamaks. However, at higher beta the increasing dominance of the electromagnetic component of the perturbations indicated by these calculations could also imply significantly different transport scaling properties.
Advanced Tokamak Stability Theory
Author: Linjin ZhengPublisher: Morgan & Claypool Publishers
ISBN: 1627054235
Category : Science
Languages : en
Pages : 156
Book Description
This book describes the advanced stability theories for magnetically confined fusion plasmas, especially in tokamaks. As the fusion plasma sciences advance, the gap between the textbooks and cutting-edge researches gradually develops. This book fills in
Canadian Journal of Physics
Author: Drift Ballooning Instabilities in Tokamak Edge Plasmas
Author: R. J. HastiePublisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
The linear stability of high-toroidal-number drift-ballooning modes in tokamaks is investigated with a model that includes resistive and viscous dissipation, and assumes the mode frequency to be comparable to both the sound and diamagnetic frequencies. The coupled effect of ion drift waves and electron drift-acoustic waves is shown to be important, resulting in destabilization over an intermediate range of toroidal mode numbers. The plasma parameters where the assumed orderings hold would be applicable to the edge conditions in present day tokamaks, so these instabilities might be related to the observed quasi-coherent edge-localized fluctuations.
Energetic Particle Stabilization of Ballooning Modes in a Finite-aspect-ratio Tokamak
Author: Hiroshi NaitouPublisher:
ISBN:
Category : Magnetohydrodynamic instabilities
Languages : en
Pages : 60
Book Description