Modelling of edge localised modes and edge localised mode control

G.T.A. Huijsmans, C.S. Chang, N. Ferraro, L. Sugiyama, F. Waelbroeck, X.Q. Xu, A. Loarte, S. Futatani

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Edge Localised Modes (ELMs) in ITER Q¼10 H-mode plasmas are likely to lead to large transient heat loads to the divertor. To avoid an ELM induced reduction of the divertor lifetime, the large ELM energy losses need to be controlled. In ITER, ELM control is foreseen using magnetic field perturbations created by in-vessel coils and the injection of small D2 pellets. ITER plasmas are characterised by low collisionality at a high density (high fraction of the Greenwald density limit). These parameters cannot simultaneously be achieved in current experiments. Therefore, the extrapolation of the ELM properties and the requirements for ELM control in ITER relies on the development of validated physics models and numerical simulations. In this paper, we describe the modelling of ELMs and ELM control methods in ITER. The aim of this paper is not a complete review on the subject of ELM and ELM control modelling but rather to describe the current status and discuss open issues.
Original languageEnglish
Pages (from-to)021805-1/20
Number of pages20
JournalPhysics of Plasmas
Publication statusPublished - 2015


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