Recent ICRF developments at JET

Authors :: M. Evrard
V. Bobkov
J. Ongena
M. Vervier
M. Vrancken
T. Blackman
J.-M. Noterdaeme
I. Monakhov
F. Durodié
D. Child
F. Louche
P. U. Lamalle
M. Nightingale
Richard Goulding
A. Walden
M.-L. Mayoral
Jet-Efda Contributors
Pierre Dumortier
D. Stork
M. Graham
A. Whitehurst
S. Huygen
A. Messiaen
Source :: Fusion Engineering and Design. 82:873-880
Publication Year :: 2007
Publisher :: Elsevier BV, 2007.
Abstract: The ion cyclotron resonance frequency (ICRF) heating system on JET is currently being upgraded to validate new matching concepts in view of coupling ICRF power to ITER-like plasmas and to further increase the total additional heating power on JET. The present paper reports on first testbed results from the new JET ITER-like antenna as well as on the first use of the newly installed hybrid couplers between two of the existing A2 antennas. Several other on-going improvements, such as improved trip management system, external conjugate-T matching circuit and arc detection systems are also discussed.