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Article Dans Une Revue Journal of Nuclear Materials Année : 2010

Strike-point splitting induced by external magnetic perturbations: Observations on JET and MAST and associated modelling

Eric Nardon
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P. Cahyna
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S. Devaux
A. Kirk
  • Fonction : Auteur
A. Alfier
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Elena de La Luna
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G. de Temmerman
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P. Denner
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T. Eich
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Thomas Gerbaud
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D. Harting
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S. Jachmich
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H. R. Koslowski
  • Fonction : Auteur
Y. Liang
  • Fonction : Auteur
Y. Sun

Résumé

Heat flux deposition profiles, calculated from infrared imaging, are presented for JET and MAST cases in the presence of external magnetic perturbations. In L-mode, a clear splitting of the strike-point is observed and well reproduced by modelling based on field line tracing with no plasma magnetic response included (vacuum field approximation). In H-mode, in contrast, the splitting is not clearly observed in spite of being expected from vacuum field modelling. As illustrated by modelling results, screening effects could explain the absence of a clear splitting in H-mode. (C) 2010 Elsevier B.V. All rights reserved.Assoc EURATOM IPP CR, Inst Plasma Phys AS CR Vvi, Prague, Czech Republic.Max Planck Inst Plasma Phys, D-85748 Garching, Germany.Culham Sci Ctr, EURATOM CCFE Fus Assoc, Abingdon OX14 3DB, Oxon, England.Assoc Euratom Enea Fus, Consorzio RFX, I-35127 Padua, Italy.Asociac EURATOM CIEMAT, Lab Nacl Fus, Madrid, Spain.FOM Inst Plasma Phys Rijnhuizen, NL-3439 MN Nieuwegein, Netherlands.Ecole Polytech, CNRS, UMR 7648, LPTP, F-91128 Palaiseau, France.Forschungszentrum Julich, Assoc EURATOM FZJ, D-52425 Julich, Germany.TEC, EURATOM Belgian State Assoc, LPP ERM KMS, Brussels, Belgium.

Dates et versions

hal-01551006 , version 1 (29-06-2017)

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Citer

Eric Nardon, P. Cahyna, S. Devaux, A. Kirk, A. Alfier, et al.. Strike-point splitting induced by external magnetic perturbations: Observations on JET and MAST and associated modelling. Journal of Nuclear Materials, 2010, 1, pp.S914 - S917. ⟨10.1016/j.jnucmat.2010.10.072⟩. ⟨hal-01551006⟩
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