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Numerical modeling of lower hybrid heating and current drive

Journal Article · · J. Comput. Phys.; (United States)
The generation of currents in toroidal plasma by application of waves in the lower hybrid frequency range involves the interplay of several physical phenomena which include: wave propagation in toroidal geometry, absorption via wave-particle resonances, the quasilinear generation of strongly nonequilibrium electron and ion distribution functions, and the self-consistent evolution of the current density in such a nonequilibrium plasma. We describe a code, LHMOD, which we have developed to treat these aspects of current drive and heating in tokamaks. We present results obtained by applying the code to a computation of current ramp-up and to an investigation of the possible importance of minority hydrogen absorption in a deuterium plasma as the ''density limit'' to current drive is approached. copyright 1987 Academic Press, Inc.
Research Organization:
Plasma Physics Laboratory, Princeton University, P.O. Box 451, Princeton, New Jersey 08544
OSTI ID:
6637347
Journal Information:
J. Comput. Phys.; (United States), Journal Name: J. Comput. Phys.; (United States) Vol. 69:2; ISSN JCTPA
Country of Publication:
United States
Language:
English