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Physics of Plasmas / Volume 5 / Issue 12

Phys. Fluids B 5, 4499 (1993); http://dx.doi.org/10.1063/1.860566 (3 pages)

Ion mobility and transport barriers in the tokamak plasmas

H. Xiao1, R. D. Hazeltine1, Y. Z. Zhang2, and P. M. Valanju3

1Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712
2International Center for Theoretical Physics, P.O. Box 586, 34100 Trieste, Italy
3Fusion Research Center, The University of Texas at Austin, Austin, Texas 78712

(Received 7 June 1993; accepted 31 August 1993)

The character of charged particle motion in an axisymmetric toroidal system with a constant radial electric field is investigated both analytically and numerically. Ion radial mobility caused by the combined effects of the radial electric field and charge exchange is found. A simple moment argument in the banana regime matches the simulation results well. Relation of present work and high confinement (H‐mode) experiment is also discussed.

KEYWORDS and PACS

Keywords

TOKAMAK DEVICES, ION MOBILITY, CHARGED PARTICLES, TOROIDAL CONFIGURATION, ELECTRIC FIELDS, CHARGE EXCHANGE, BANANA REGIME, TRANSPORT, ORBITS, ION−ION COLLISIONS, ELECTRON−ION COLLISIONS

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.860566

PUBLICATION DATA

ISSN

0899-8221 (print)  
1089-7674 (online)

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