A self-consistent theory of radial transport of field-aligned current by microturbulence

Technical Report · Thu Feb 01 00:00:00 EST 1990

DOI:https://doi.org/10.2172/7101963· OSTI ID:7101963

Terry, P W ^[1]; Diamond, P H ^[2]

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1. Wisconsin Univ., Madison, WI (USA). Dept. of Physics
2. California Univ., San Diego, La Jolla, CA (USA). Dept. of Physics General Atomics Co., San Diego, CA (USA)

The radial transport of field-aligned current due to collisionless microturbulence is examined self-consistently. The self-consistent treatment of mode coupling shown to constrain the transport in such a way that the relaxation of current gradients is regulated solely by electrostatic fluctuations which couple to ion dissipation, even in the presence of temperature gradients and temperature anisotropy. As a consequence, the radial flux of parallel current induced by collisionless microinstabilities is insufficient to account for the dynamo in reversed field pinch plasmas. 26 refs.

• Research Organization: Wisconsin Univ., Madison, WI (USA). Plasma Physics Research
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG02-89ER53291; FG03-88ER53275
• OSTI ID: 7101963
• Report Number(s): DOE/ER/53291-150; ON: DE90007920; TRN: 90-009271
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COLLISIONLESS PLASMA
CHARGED-PARTICLE TRANSPORT
RESPONSE FUNCTIONS
REVERSE-FIELD PINCH
TEMPERATURE GRADIENTS
TURBULENCE
FUNCTIONS
PINCH EFFECT
PLASMA
RADIATION TRANSPORT
700103* - Fusion Energy- Plasma Research- Kinetics