2003/05/14 by M. Wanner, M Wanner, V Erckmann +28 · 34 citations
Engineering · Physics and Astronomy · #Atomic physics #Computational physics #Computer science #Divertor #Electrical engineering #Limiter #Magnet #Magnetic confinement fusion research #Magnetic field #Materials science #Nuclear engineering #Nuclear physics #Particle accelerators and beam dynamics #Physics #Planar #Plasma #Stellarator #Superconducting Materials and Applications #Superconducting magnet #Tokamak #Wendelstein 7-X
paper · pdf · doi:10.1088/0029-5515/43/6/304
published in Nuclear Fusion 43(6), 416-424 (IOP Publishing)
openalex publication_date 2003/05/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
WENDELSTEIN 7-X (W7-X) shall confirm the favourable plasma properties and the high density and beta limits of the helical advanced stellarator and demonstrate steady-state operation. The magnetic configuration of W7-X is characterized by a set of 50 non-planar and 20 planar superconducting coils. The magnet system will be manufactured and assembled to a precision of a few millimetres and maintain its symmetry during cool-down to cryogenic temperatures. Power supplies allows one to adjust the magnetic field with a precision of a few milli Tesla and safely dump the magnet energy in case of a quench. The plasma vessel gives maximum space for the plasma and is kept symmetrically with respect to the plasma by dedicated means. Steady-state heating is achieved by 10 MW ECRH. Energy and particles are controlled by a continuously working divertor. All plasma-facing surfaces are covered by CFC, graphite or B 4 C, respectively. The paper reviews the status of the construction and describes details of the design.