SOL studies for W7-X based on the island divertor concept

A vacuum magnetic field structure in the edge region of Wendelstein 7-X lending itself to the island divertor concept is studied for three rotational transform values, l=5/6, 5/5 and 5/4. An estimate of the power load on the divertor plates is given for these magnetic field configurations by using a simplified transport model in conjunction with complementary Monte Carlo methods allowing simulation of transport across field lines

[1]  Günter Grieger,et al.  Plasma Physics and Controlled Nuclear Fusion Research , 1989 .

[2]  R. L. Hickok,et al.  The space potential in the tokamak text , 1991 .

[3]  J. Snipes,et al.  Ergodic magnetic layer experiment , 1985 .

[4]  R. Zille,et al.  Stable stellarators with medium β and aspect ratio , 1986 .

[5]  E. Strumberger.  Field Line Mapping and Edge Modeling for Helias Configurations , 1994 .

[6]  P. H. Rebut,et al.  The ITER challenge , 1993 .

[7]  G. Vlases.  A review of progress towards a next step divertor , 1993 .

[8]  Ph. Ghendrih,et al.  Connexion topology and SOL physics induced by the ergodic divertor in Tore Supra , 1990 .

[9]  L. Giannone,et al.  Tokamak Edge Modeling and Comparison with Experiment in ASDEX , 1989 .

[10]  M. Keilhacker.  Plasma Boundary Layer in Limiter and Divertor Tokamaks , 1982 .

[11]  Control of the Edge Transport with the Ergodic Divertor , 1992 .

[12]  E. Strumberger,et al.  Magnetic field line diversion in Helias stellarator configurations: perspectives for divertor operation , 1992 .

[13]  T. Evans,et al.  Transport in the plasma edge and specific connexion to the wall in the Tore Supra ergodic divertor experiments , 1992 .

[14]  E. Strumberger,et al.  Development of Divertor Concept for Optimized Stellarators , 1992 .

[15]  P. Merkel,et al.  Three-dimensional free boundary calculations using a spectral Green's function method , 1986 .

[16]  J. Nührenberg,et al.  Quasi-Helically Symmetric Toroidal Stellarators , 1988 .

[17]  J. Neuhauser.  The physics of power exhaust from toroidal magnetoplasmas , 1992 .

[18]  P. Harbour,et al.  Plasma Characteristics and Gas Transport in the Single-Null Poloidal Divertor of the International Tokamak Reactor , 1983 .