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The purpose of this research was to study the effect of the electric field profiles on the lower hybrid current drive efficiency during transient phases such as rampup. As a complement to the full ray-tracing/Fokker Planck studies, and for the purpose of optimisation studies, a simplified 1D model based on the adjoint Karney-Fisch numerical results has been developed. This report includes a description of the model and illustrates the method using numerical results obtained with the Tore Supra and NET/ITER parameters. An interpretation of the numerical results is also presented, together with a derivation of a simple and general scaling law for flux consumption.

Additional information

Authors: LITAUDON X ET AL., CEA, Département de Recherches sur la Fusion Contrôlée, CEN Cadarache, Saint-Paul-lez-Durance (FR);FUCHS V, Centre Canadien de Fusion Magnétique, Varennes (CA);SHKAROFSKY I P, MPB Technologies, Dorval (CA);BONOLI P, Massachusetts Institute of Technology, Plasma Fusion Center, Cambridge (US)
Bibliographic Reference: Report: EUR-CEA-FC-1472 EN (1992) 33 pp.
Availability: Available from CEA, Département de Recherches sur la Fusion Contrôlée, Saint-Paul-lez-Durance (FR)
Record Number: 199310909 / Last updated on: 1994-11-29
Original language: en
Available languages: en
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