Present Status of the ITER-like ICRF Antenna on JET

Journal Article · Thu Nov 26 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3273733· OSTI ID:21335710

Durodie, F; Huygen, S; Lerche, E; Ongena, J; Van Eester, D; Vrancken, M ^[1]; Nightingale, M; Mayoral, M -L; Blackman, T; Graham, M; Jacquet, P; Whitehurst, A; Wooldridge, E ^[2]; Argouarch, A ^[3]; Gauthier, M ^[4]; Goulding, R ^[5]

---

1. Laboratory for Plasma Physics, Ecole Royale Militaire/Koninklijke Militaire School, Association Euratom-Belgian State, Avenue de la Renaissance 30, B-1000 Brussels (Belgium)
2. EURATOM/UKAEA Fusion Association, Culham (United Kingdom)
3. CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)
4. JET-EFDA Close Support Unit (United Kingdom)
5. 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, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1187; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABSORPTION
ANTENNAS
EDGE LOCALIZED MODES
H-MODE PLASMA CONFINEMENT
ICR HEATING
ITER TOKAMAK
JET TOKAMAK
L-MODE PLASMA CONFINEMENT
MHZ RANGE
PLASMA
PLASMA IMPURITIES
POWER DENSITY