Overview of the ITER-FEAT LH system

Ph. Bibet (Corresponding Author), F. Mirizzi, P. Bosia, L. Doceul, S. Kuzikov, K. Rantamäki, A.A. Tuccillo, F. Wasasterjna

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)


LH is considered to be used in ITER-FEAT steady-state scenario thanks to its highest current drive efficiency in the plasma outer part. The design of a 5 GHz, 20 MW CW LH system has been realised. That relies on a transmitter of 24 1-MW klystrons, and a circular oversized 60-m long transmission line feeding an antenna, based on the passive active multijunction concept. In order to have a high reliability, the power density is limited to 33 MW/m2. After the system description, the results of different studies are given: RF computation, launcher coupling properties, thermal analysis, mechanical stress caused by disruption, neutron activation, acceleration of electrons in the antenna near field.
Original languageEnglish
Pages (from-to)525-529
JournalFusion Engineering and Design
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed
Event22nd Symposium on Fusion Technology - Helsinki, Finland
Duration: 9 Sept 200213 Sept 2002
Conference number: 22


  • ITER
  • fusion energy
  • fusion reactors
  • antennas
  • neutrons
  • klystrons
  • transmitters


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