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(THP1/06) Optimisation of Stellarator Systems: Possible Ways

   
W. A. Cooper *, M. Isaev , A. E. Leneva , M. Mikhailov , V. D. Shafranov , A. A. Subbotin 
 
Nuclear Fusion Institute, Russian Research Center ``Kurchatov Institute'', Moscow, Russia
* Centre de Recherches en Physique de Plasmas, Association Euratom-Confederation Suisse, Ecole Polytechnique Federale de Lausanne, Lausanne, Switzerland

Abstract
The results of our search for advanced helical (stellarator ) systems with a small number of field periods over the last five years are presented. The comparison of stellarator systems with toroidal (helical or axial) and poloidal directions of the contours with B = constant on the magnetic surface as well as systems with Helias and Heliac-like orientation of the magnetic surfaces cross-sections with respect to the principal normal to the magnetic axis is undertaken. Particular attention is paid to some attractive features of the systems with constant B-lines in the poloidal direction.

 

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IAEA 1999