TITLE

Current sustainment by synchrotron radiation in a tokamak device

AUTHOR(S)
Fidone, I.; Granata, G.; Johner, J.
PUB. DATE
August 1988
SOURCE
Physics of Fluids (00319171);Aug88, Vol. 31 Issue 8, p2300
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Current drive using anisotropic synchrotron radiation in a tokamak device is considered. A relativistic formulation of the current drive efficiency, which includes both momentum transfer and asymmetric resistivity, is presented. The explicit computation of the current drive efficiency is performed for a Maxwellian plasma using Trubnikov's theory of radiation [in Reviews of Plasma Physics, edited by M. A. Leontovich (Consultants Bureau, New York, 1979), Vol. 7, p. 345]. The effect of the various synchrotron harmonics on the total generated current is examined, and it is shown that most of the contribution comes from a few harmonics near n = ω/ω[sub c] » 1 for which the corresponding resonant velocities are in the same direction. The general properties of the synchrotron radiation and its capability to generate current in a reactor are also briefly discussed.
ACCESSION #
9830052

 

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