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The role of fluctuation-induced transport in a toroidal plasma with strong radial electric fieldsPrevious work employing digitally implemented spectral analysis techniques is extended to demonstrate that radial fluctuation-induced transport is the dominant ion transport mechanism in an electric field dominated toroidal plasma. Such transport can be made to occur against a density gradient, and hence may have a very beneficial effect on confinement in toroidal plasmas of fusion interest. It is shown that Bohm or classical diffusion down a density gradient, the collisional Pedersen-current mechanism, and the collisionless electric field gradient mechanism described by Cole (1976) all played a minor role, if any, in the radial transport of this plasma.
Document ID
Document Type
Reprint (Version printed in journal)
Roth, J. R.
(Tennessee, University Knoxville, TN, United States)
Krawczonek, W. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Powers, E. J.
(Tennessee Univ. Knoxville, TN, United States)
Hong, J. Y.
(Tennessee Univ. Knoxville, TN, United States)
Kim, Y. C.
(Texas, University Austin, TX, United States)
Date Acquired
August 11, 2013
Publication Date
June 1, 1981
Publication Information
Publication: Plasma Physics
Volume: 23
Subject Category
Plasma Physics
Funding Number(s)
Distribution Limits
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