Overview on experiments on ITER-like antenna on JET and ICRF antenna design for ITER

M. P.S. Nightingale, F. Durodié, A. Argouarch, B. Beaumont, A. Becoulet, J. M. Bernard, T. Blackman, J. Caughman, P. Dumortier, D. Edwards, J. Fanthome, T. Gassman, R. Goulding, M. Graham, C. Hamlyn-Harris, D. Hancock, S. Huygen, P. Jacquet, F. Kazarian, R. KochP. U. Lamalle, E. Lerche, F. Louche, R. Maggiora, M. L. Mayoral, A. M. Messiaen, D. Milanesio, I. Monakhov, A. Mukherjee, K. Nicholls, J. M. Noterdaeme, J. Ongena, D. Rasmussen, F. Rimini, R. Sartori, D. Stork, D. Van Eester, M. Vervier, M. Vrancken, K. Vulliez, A. Whitehurst, D. Wilson, E. Wooldridge

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdragepeer review

Samenvatting

Following an overview of the ITER Ion Cyclotron Resonance Frequency (ICRF) system, the JET ITER-like antenna (ILA) will be described. The ILA was designed to test the following ITER issues: (a) reliable operation at power densities of order 8MW/m2 at voltages up to 45 kV using a close-packed array of straps; (b) powering through ELMs using an internal (in-vacuum) conjugate-T junction; (c) protection from arcing in a conjugate-T configuration, using both existing and novel systems; and (d) resilience to disruption forces. ITER-relevant results have been achieved: operation at high coupled power density; control of the antenna matching elements in the presence of high inter-strap coupling, use of four conjugate-T systems (as would be used in ITER, should a conjugate-T approach be used); operation with RF voltages on the antenna structures up to 42 kV; achievement of ELM tolerance with a conjugate-T configuration by operating at 3Ω real impedance at the conjugate-T point; and validation of arc detection systems on conjugate-T configurations in ELMy H-mode plasmas. The impact of these results on the predicted performance and design of the ITER antenna will be reviewed. In particular, the implications of the RF coupling measured on JET will be discussed.

Originele taal-2Engels
TitelRadio Frequency Power in plasmas - Proceedings of the 18th Topical Conference
Pagina's213-220
Aantal pagina's8
DOI's
StatusGepubliceerd - 2009
Evenement18th Topical Conference on Radio Frequency Power in plasmas - Gent, België
Duur: 24 jun. 200926 jun. 2009

Publicatie series

NaamAIP Conference Proceedings
Volume1187
ISSN van geprinte versie0094-243X
ISSN van elektronische versie1551-7616

Congres

Congres18th Topical Conference on Radio Frequency Power in plasmas
Land/RegioBelgië
StadGent
Periode24/06/0926/06/09

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