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Co-counter asymmetry in fast wave heating and current drive [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy. Office of Energy Research, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
3 pages : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy. Office of Energy Research, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Full wave ICRF coupling models show differences in plasma response when antenna arrays are phase to drive currents and counter to the plasma current. The source of this difference lies in the natural up- sown asymmetry of the antenna`s radiated power spectrum. This asymmetry is due to Hall terms in the wave equation, and occurs even without a poloidal magnetic field. When a poloidal field is included, the up-down asymmetry acquires a toroidal component. The result is that plasma absorption (i.e. antenna loading) is shifted or skewed toward the co-current drive direction, independent of the direction of the magnetic field. When wave are launched to drive current counter the plasma current , electron heating an current profiles are more peaked on axis, and this peaking becomes more pronounce a lower toroidal magnetic fields.
Report Numbers
E 1.99:conf-9704102--3
conf-9704102--3
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
04/01/1997.
"conf-9704102--3"
"DE97005124"
12. topical conference on radio frequency power in plasmas, Savannah, GA (United States), 1-3 Apr 1997.
Carter, M.D.; Forest, C.B.; Jaeger, E.F.; Berry, L.A.; Batchelor, D.B.; Weitzner, H.
Funding Information
AC05-96OR22464
View MARC record | catkey: 14742211