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A Comparative Calculation of the Intrinsic Stochasticity of Tokamak Divertor Configuration
Poloidal divertors are, more than never before, a crucial topic for the advancement of magnetic fusion technology. Due to the often non linear and stochastic nature of the plasma edge phenomena, canon...
Poloidal divertors are, more than never before, a crucial topic for the advancement of magnetic fusion technology. Due to the often non linear and stochastic nature of the plasma edge phenomena, canon...
Stochastization of Magnetic Field Surfaces in Tokamaks by an Inner Coil
A 3-D code has been developed in order to simulate the magnetic field lines in circular cross-section tokamaks. The toroidal magnetic field can be obtained from the individual fields of circular coils...
A 3-D code has been developed in order to simulate the magnetic field lines in circular cross-section tokamaks. The toroidal magnetic field can be obtained from the individual fields of circular coils...
Turbulence Induced Transport in Tokamaks
AIP Conf. Proc. -- December 4, 2006 -- Volume 875, pp. 341-346
PLASMA AND FUSION SCIENCE: 16th IAEA Technical Meeting on Research using Small Fusion Devices; XI Latin American Workshop on Plasma Physics;
doi:10.1063/1.2405962
Issue Date: 4 December 2006
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I. L. Caldas,* F. A. Marcus,* A. M. Batista,![[dagger]](http://scitation.aip.org/stockgif3/dagger-script.gif)
R. L. Viana,** S. R. Lopes,** M. V. A. P. Heller,* Z. O. Guimarães-Filho,* P. J. Morrison,![[double-dagger]](http://scitation.aip.org/stockgif3/Dagger-script.gif)
, and W. Horton,
*Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970, São Paulo, SP, Brazil
Departamento de Matemática e Estatística, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil
**Departamento de Física, Universidade Federal do Paraná, 81531-990, Curitiba, PR, Brazil
Department of Physics, The University of Texas at Austin, Austin, Texas, 78712
Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas, 78712
R. L. Viana,** S. R. Lopes,** M. V. A. P. Heller,* Z. O. Guimarães-Filho,* P. J. Morrison,, and W. Horton,*Instituto de Física, Universidade de São Paulo, Caixa Postal 66318, 05315-970, São Paulo, SP, Brazil
Departamento de Matemática e Estatística, Universidade Estadual de Ponta Grossa, Ponta Grossa, PR, Brazil **Departamento de Física, Universidade Federal do Paraná, 81531-990, Curitiba, PR, Brazil
Department of Physics, The University of Texas at Austin, Austin, Texas, 78712 Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas, 78712
This report is concerned with plasma edge turbulence and its relation to anomalous particle transport in tokamaks. First, experimental evidence of turbulence driven particle transport and measurements of the gradients of the equilibrium profiles in the Brazilian tokamaks TBR and TCABR are presented. Next, diffusion in a two drift-wave system is discussed. In this nonintegrable system, particle transport is associated with the onset of chaotic orbits. Finally, numerical evidence suggesting that a nonlinear three-mode interaction could contribute to the intermittent plasma fluctuations observed in tokamaks is presented. ©2006 American Institute of Physics
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KEYWORDS and PACS
plasma turbulence,
plasma transport processes,
plasma nonlinear processes,
plasma drift waves,
plasma fluctuations,
Tokamak devices,
numerical analysis
- 52.35.Ra
Plasma turbulence - 52.25.Fi
Plasma transport properties - 52.35.Kt
Plasma drift waves - 52.35.Mw
Nonlinear phenomena: plasma waves, wave propagation and other interactions including parametric effects, mode coupling, ponderomotive effects, etc - 52.25.Gj
Plasma fluctuation and chaos phenomena - 52.55.Fa
Tokamaks - YEAR: 2006
PUBLICATION DATA
0094-243X (print)
AIP
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