Present Status of the ITER-like ICRF Antenna on JET
- Laboratory for Plasma Physics, Ecole Royale Militaire/Koninklijke Militaire School, Association Euratom-Belgian State, Avenue de la Renaissance 30, B-1000 Brussels (Belgium)
- EURATOM/UKAEA Fusion Association, Culham (United Kingdom)
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)
- JET-EFDA Close Support Unit (United Kingdom)
- Oak Ridge National Laboratory, Oak Ridge (United States)
The commissioning of the ITER-Like ICRF Antenna (ILA) on JET plasmas from May 2008 to April 2009 in various conditions (33, 42 and 47 MHz, L- and H-mode, antenna strap-plasma separatrix distances of {approx}9 to 17 cm) has provided relevant information for future antenna design and operation. The maximum power density achieved was 6.2 MW/m{sup 2} in L-mode with strap to plasma separatrix distance of {approx}9-10 cm at 42 MHz on the lower half of the ILA extrapolating to 8 MW/m{sup 2} if the full generator power had been available. Efficient (trip-free operation) ELM tolerance was obtained both at 33 and 42 MHz on a large range of ELMs with strap voltages up to 42 kV and a maximum power density of 4.1 MW/m{sup 2}. The paper reviews these achievements as well as remaining issues.
- OSTI ID:
- 21335710
- Journal Information:
- AIP Conference Proceedings, Vol. 1187, Issue 1; Conference: 18. topical conference on radio frequency power in plasmas, Gent (Belgium), 24-26 Jun 2009; Other Information: DOI: 10.1063/1.3273733; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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