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Inward transport of a toroidally confined plasma subject to strong radial electric fieldsThe paper aims at showing that the density and confinement time of a toroidal plasma can be enhanced by radial electric fields far stronger than the ambipolar values, and that, if such electric fields point into the plasma, radially inward transport can result. The investigation deals with low-frequency fluctuation-induced transport using digitally implemented spectral analysis techniques and with the role of strong applied radial electric fields and weak vertical magnetic fields on plasma density and particle confinement times in a Bumpy Torus geometry. Results indicate that application of sufficiently strong radially inward electric fields results in radially inward fluctuation-induced transport into the toroidal electrostatic potential well; this inward transport gives rise to higher average electron densities and longer particle confinement times in the toroidal plasma.
Document ID
Document Type
Conference Paper
Roth, J. R.
(NASA Lewis Research Center Cleveland, OH, United States)
Krawczonek, W. M.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Powers, E. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Hong, J.
(NASA Lewis Research Center Cleveland, OH, United States)
Kim, Y.
(Texas, University Austin, Tex., United States)
Date Acquired
August 9, 2013
Publication Date
November 1, 1977
Subject Category
Plasma Physics
Meeting Information
Annual Meeting(Atlanta, GA)
Distribution Limits
No Preview Available