期刊
NUCLEAR FUSION
卷 40, 期 6, 页码 1083-1093出版社
INT ATOMIC ENERGY AGENCY
DOI: 10.1088/0029-5515/40/6/306
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The stellarator Wendelstein 7-X (W7-X) is presently under construction at Greifswald, Germany, and the start of operation is planned in 2006. W7-X is a large 'advanced stellarator' of the HELIAS type (R = 5.5 m, a = 0.55 m, B-o = 3 T, five periods, moderate shear and variable rotational transform 5/6 less than or equal to iota less than or equal to 5/4 at the boundary) with the aims of demonstrating the reactor potential of this stellarator line in steady state operation close to fusion relevant parameters. The capability of stationary operation requires the realization of a superconducting magnet system consisting of 50 modular coils and 20 planar coils, the operation of a 140 GHz ECR CW heat source of 10 MW, the installation of a divertor to handle the power and particle flux, and to limit the impurity fraction to tolerable levels. Additional heating schemes, ICRF and NBI, will be provided for flexible experimentation.
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