WEST Physics Basis

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Abstract

With WEST (Tungsten Environment in Steady State Tokamak) (Bucalossi et al 2014 Fusion Eng. Des. 89 907-12), the Tore Supra facility and team expertise (Dumont et al 2014 Plasma Phys. Control. Fusion 56 075020) 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.

Original languageEnglish
Article number063017
Number of pages15
JournalNuclear Fusion
Volume55
Issue number6
DOIs
Publication statusPublished - Jun 2015
MoE publication typeA1 Journal article-refereed

Keywords

  • plasma facing components
  • divertor
  • tokamak
  • plasma physics
  • DENSITY PEAKING
  • DIVERTOR
  • PROFILE
  • EXTRAPOLATION
  • TRANSPORT
  • TOKAMAKS
  • BEHAVIOR
  • TUNGSTEN
  • LOSSES
  • POWER

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