Experimental study of neoclassical currents
A detailed experimental study is presented of the bootstrap and Pfirsch-Schlueter currents that are predicted by neoclassical transport theory. In a toroidal octupole, on magnetic surfaces within the separatrix, the observed parallel plasma currents are in excellent quantitative agreement with neoclassical theory with regard to the spatial structure (along a magnetic surface), collisionality dependence and toroidal magnetic field dependence. On magnetic surfaces outside the separatrix, the ion portion of the parallel current is in agreement with neoclassical theory but the electron parallel current is observed to obtain a unidirectional component which deviates from and exceeds the theoretical prediction.
- Research Organization:
- Wisconsin Univ., Madison (USA)
- DOE Contract Number:
- AC02-83ER53154
- OSTI ID:
- 5466926
- Report Number(s):
- DOE/ER/53154-82; ON: DE85014866
- Country of Publication:
- United States
- Language:
- English
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Experimental observation of plasma neoclassical currents
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Related Subjects
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
BEAM CURRENTS
CLOSED PLASMA DEVICES
CURRENTS
ELECTRIC CURRENTS
MAGNETIC FIELD CONFIGURATIONS
NEOCLASSICAL TRANSPORT THEORY
PFIRSCH-SCHLUETER REGIME
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
TRANSPORT THEORY