Anomalous perturbative transport in tokamaks due to drift-wave turbulence

Journal Article · Tue Mar 01 00:00:00 EST 1994 · Physics of Plasmas; (United States)

DOI:https://doi.org/10.1063/1.870803· OSTI ID:5221085

Thoul, A A ^[1]; Similon, P L ^[2]; Sudan, R N ^[3]

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1. Institute for Advanced Study, Princeton, New Jersey 08540 (United States)
2. Department of Applied Physics, Yale University, New Haven, Connecticut 06520 (United States)
3. Laboratory for Plasma Studies, Cornell University, Ithaca, New York 14853 (United States)

A new method for calculating the anomalous transport in tokamak plasmas is presented. The renormalized nonlinear plasma response function is derived using the direct-interaction approximation (DIA). A complete calculation for the case of electrostatic drift-wave turbulence is presented. Explicit expressions for all coefficients of the anomalous transport matrix relating particle and heat fluxes to density and temperature gradients in the plasma are obtained. The anomalous transport matrix calculated using the DIA does not have the Onsager symmetry. As an example of application, the parameters of the Texas Experimental Tokamak (TEXT) [Nucl. Technol. Fusion [bold 1], 479 (1981)] are used to evaluate all transport coefficients numerically, as well as the spectrum modulation. The relation between the theoretical results and the experimental data is discussed. Although this paper focuses on electron transport for simplicity, the method can also be used to calculate anomalous transport due to ion instabilities, such as the ion-temperature-gradient instability.

• DOE Contract Number: FG02-84ER53174; FG02-89ER53300
• OSTI ID: 5221085
• Journal Information: Physics of Plasmas; (United States), Vol. 1:3; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
TOKAMAK DEVICES
PLASMA DRIFT
HEAT FLUX
MATRICES
TRANSPORT THEORY
TRAPPED ELECTRONS
TURBULENCE
CLOSED PLASMA DEVICES
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
LEPTONS
THERMONUCLEAR DEVICES
700330* - Plasma Kinetics
Transport
& Impurities- (1992-)
700340 - Plasma Waves
Oscillations
& Instabilities- (1992-)