Wendelstein 7-X

T. Klinger     Max-Planck Institute for Plasma Physics, Greifswald, Germany


This Chapter is about stellarators. A stellarator is a toroidal magnetic confinement scheme in which the rotational transform of the magnetic field is predominantly given by the shape of the external magnetic field coils. Stellarators have advantages–better stability features and inherent capability to operate a plasma in steady-state–but require a carteful magnetic field optimization. Wendelstein 7-X is a large, superconducting stellarator with modular coils and an optimized magnetic field. The optimization principles are described as well as the 15 years of construction.

Wendelstein 7-X just started operation and the physics research program is ...

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