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|Type:||Artigo de periódico|
|Title:||Critical Power For Lower Hybrid Current Drive|
|Author:||De Assis A.S.|
De Azevedo C.A.
|Abstract:||We have solved numerically the quasilinear Fokker-Planck equation which models the critical power for lower hybrid wave current drive. An exact value for the critical power necessary for current saturation, for tokamak current drive experiments, has been obtained. The nonlinear treatment presented here leads to a final profile for the parallel distribution function which is a plateau only in a part of the resonance region. This form of the distribution function is intermediate between two well known results: a plateau through out the resonance region for the linear strong-source regime, Dwave » Dcoll and no plateau at all in the resonance region for the linear weak-source regime, Dwave « Dcoll . The strength of the external power source and the value of the dc electric field are treated as given parameters in the integration scheme.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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