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Author Camenen, Y. ♦ Peeters, A. G. ♦ Casson, F. J. ♦ Hornsby, W. A. ♦ Snodin, A. P. ♦ Szepesi, G. ♦ Bortolon, A. ♦ Duval, B. P. ♦ Federspiel, L. ♦ Karpushov, A. N. ♦ Piras, F. ♦ Sauter, O.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PLASMA PHYSICS AND FUSION TECHNOLOGY ♦ ASYMMETRY ♦ ELECTRIC CURRENTS ♦ EQUILIBRIUM ♦ IONS ♦ MAGNETIC FIELD CONFIGURATIONS ♦ MAGNETIC FIELDS ♦ PLASMA ♦ ROTATION ♦ TOKAMAK DEVICES ♦ VARIATIONS ♦ CHARGED PARTICLES ♦ CLOSED PLASMA DEVICES ♦ CURRENTS ♦ MOTION ♦ THERMONUCLEAR DEVICES
Abstract The first experimental evidence of parallel momentum transport generated by the up-down asymmetry of a toroidal plasma is reported. The experiments, conducted in the Tokamak a Configuration Variable, were motivated by the recent theoretical discovery of ion-scale turbulent momentum transport induced by an up-down asymmetry in the magnetic equilibrium. The toroidal rotation gradient is observed to depend on the asymmetry in the outer part of the plasma leading to a variation of the central rotation by a factor of 1.5-2. The direction of the effect and its magnitude are in agreement with theoretical predictions for the eight possible combinations of plasma asymmetry, current, and magnetic field.
ISSN 00319007
Educational Use Research
Learning Resource Type Article
Publisher Date 2010-09-24
Publisher Place United States
Journal Physical Review Letters
Volume Number 105
Issue Number 13


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