Results 181 to 190 of about 37,068 (190)

Neoclassical quasilinear transport theory of fluctuations in toroidal plasmas: Further considerations

Physics of Fluids B: Plasma Physics, 1990
The effects of the radial electric field Er on fluctuation-induced transport fluxes and the fluctuation spectrum in toroidal plasmas are further studied to clarify the ideas originally developed in an earlier paper [Phys. Fluids 31, 2249 (1988)]. A specific tokamak example is employed in the discussion.
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Poloidal Rotation Dynamics, Radial Electric Field, and Neoclassical Theory in the Jet Internal-Transport-Barrier Region

Physical Review Letters, 2005
Results from the first measurements of a core plasma poloidal rotation velocity (upsilontheta) across internal transport barriers (ITB) on JET are presented. The spatial and temporal evolution of the ITB can be followed along with the upsilontheta radial profiles, providing a very clear link between the location of the steepest region of the ion ...
Crombé K., Y. Andrew, M., Brix, C., Giroud, S., Hacquin, N. C., Hawkes, A., Murari, M., Nave F. F., Ongena J., Parail V., Van Oost G., I. Voitsekhovitch I., Zastrow K.-D.   +12 more
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Neoclassical theory of alpha-particle transport in the central region of a tokamak plasma

Nuclear Fusion, 1983
A neoclassical theory applicable to the central region of a reactor tokamak plasma is developed for high-energy alpha-particle transport processes. It is shown that in the neighbourhood of the magnetic axis (and on the axis itself), the alpha-particle bootstrap current and flux across the magnetic field are non-zero and may be comparable with the ...
V.Ya. Goloborod'ko, Ya. I. Kolesnichenko, V.A. Yavorskij   +2 more
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A drift-kinetic approach to neoclassical transport theory for plasmas with large toroidal rotation

Physics of Plasmas, 2004
A formulation of the neoclassical transport theory for tokamak plasmas with large toroidal velocities that can be comparable to the ion thermal velocity is presented using the drift kinetic equation. In this formulation, the motion of the guiding centers is the same as in the small rotation theory, but the radial electric field is considered stronger ...
S. K. Wong, V. S. Chan
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Toroidal viscosity and ambipolarity in the neoclassical transport theory of axisymmetric tori

The Physics of Fluids, 1986
To self-consistently evaluate both the toroidal rotation and the radial electric field in a tokamak the two distinct constraints of toroidal angular momentum conservation and ambipolarity must be invoked. A gyrokinetic derivation of the neoclassical transport equations that permits a large toroidal rotation speed is employed.
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Neoclassical theory for rotation and impurity transport in tokamaks with neutral beam injection

Physics of Plasmas, 2001
A self-consistent, first-principles neoclassical theory for rotation and impurity transport in tokamaks is presented. The implications of this theory for impurity transport in a tokamak are illustrated by a model problem calculation.
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Neoclassical Transport Theory for Tokamak Plasma with Anisotropic Temperature in the Banana Regime

Journal of the Physical Society of Japan, 1998
The neoclassical transport theory in a presence of the temperature anisotropy in the equilibrium distribution function is developed in a large aspect-ratio tokamak. Using a model collision operator, the transport coefficients for the cross-field fluxes and the bootstrap current are explicitly calculated in the banana regime. The electron perpendicular (
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Neoclassical theory of transport processes in toroidal magnetic confinement systems, with emphasis on non-axisymmetric configurations

Nuclear Fusion, 1984
The paper constitutes a review of the neoclassical theory of transport processes in the different types of toroidal magnetic configuration now being used to study the possibility of producing a controlled thermonuclear reaction. Owing to the abundance of the material that has accumulated in recent years and the large number of parameters involved in ...
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Erratum: “A drift-kinetic approach to neoclassical transport theory for plasmas with large toroidal rotation” [Phys. Plasmas 11, 3432 (2004)]

Physics of Plasmas, 2005
S. K. Wong, V. S. Chan
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A General Theory of LMFP Neoclassical Transport in Stellarators

1990
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