A 5-1/2-dimensional theory for fast and accurate evaluation of the cyclotron resonance heating using a real-space wave representation

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The cyclotron resonance heating rate in a plasma has been evaluated so far from a five-dimensional (5D) quasilinear model because the 6D evaluation is prohibitively expensive. However, the quasilinear approach as applied to the cyclotron resonance heating has fundamental difficulties in evaluating the net effect from a large number of coupled wave modes (leading to strong spatial wave inhomogeneity) since the theory is built on the Fourier space wave representation, and does not include the regular nonlinear particle dynamics within a resonance passing event since the theory is based on the unperturbed orbit theory. A new 5-1/2D theory is formulated for evaluation of a more accurate resonant particle dynamics using the real-space wave representation, which overcomes the shortcomings of the quasilinear cyclotron resonance heating theories by reproducing the 6D physics at the 5D computing speed. (C) 2007 American Institute of Physics.
Publisher
Amer Inst Physics
Issue Date
2007-05
Language
English
Article Type
Article
Keywords

TOKAMAK GEOMETRY; PLASMA; FREQUENCIES; EQUATIONS; RANGE

Citation

PHYSICS OF PLASMAS, v.14, no.5, pp.052503

ISSN
1070-664X
DOI
10.1063/1.2719640
URI
http://hdl.handle.net/10203/86129
Appears in Collection
PH-Journal Papers(저널논문)
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