WEST Physics Basis

[摘要] With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossiet al2014Fusion Eng. Des. 89907–12 ), the Tore Supra facility and team expertise (Dumontet al2014Plasma Phys. Control. Fusion 56075020 ) is used to pave the way towards ITER divertor procurement and operation. It consists in implementing a divertor configuration and installing ITER-like actively cooled tungsten monoblocks in the Tore Supra tokamak, taking full benefit of its unique long-pulse capability. WEST is a user facility platform, open to all ITER partners. This paper describes the physics basis of WEST: the estimated heat flux on the divertor target, the planned heating schemes, the expected behaviour of the L–H threshold and of the pedestal and the potential W sources. A series of operating scenarios has been modelled, showing that ITER-relevant heat fluxes on the divertor can be achieved in WEST long pulse H-mode plasmas.

[关键词] plasma facing components;divertor;tokamak;plasma physics