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

0366886 - ÚFP 2012 RIV NL eng J - Článek v odborném periodiku
Nardon, E. - Cahyna, Pavel - Devaux, S. - Kirk, A. - Alfier, A. - De La Luna, E. - De Temmerman, G. - Denner, P. - Eich, T. - Gerbaud, T. - Harting, D. - Jachmich, S. - Koslowski, H.R. - Liang, Y. - Sun, Y.
Strike-point splitting induced by external magnetic perturbations: Observations on JET and MAST and associated modelling.
Journal of Nuclear Materials. Roč. 415, č. 1 (2011), S914-S917. ISSN 0022-3115. E-ISSN 1873-4820.
[International Conference on Plasma-Surface Interactions in Controlled Fusion Device/19th./. San Diego, 24.05.2010-28.05.2010]
Grant CEP: GA MŠMT LA08048
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: Tokamaks * ELM control * resonant magnetic perturbations * divertor
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.052, rok: 2011
http://dx.doi.org/10.1016/j.jnucmat.2010.10.072

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.
Trvalý link: http://hdl.handle.net/11104/0201721