Main design features and challenges of the ITER-like ICRF antenna for JET

  • Durodié F
  • Chappuis P
  • Fanthome J
 et al. 
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Abstract

The ITER-like ICRF antenna for JET aims at validating novel antenna design principles in conditions as relevant as possible to ITER by coupling about 7.2 MW to an ELMy H-mode plasma on JET in the frequency range from 30 to 55 MHz. The power density, about 8 MW/m2, for a given maximum voltage in the circuit is maximized using poloidally short straps and the resilience to fast varying RF loads by matching pairs of straps by a so-called conjugate-T. The paper reports the main characteristics of the final design as well as the main challenges encountered during the design and testing phase of the key components. © 2005 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • High power prototype
  • ICRF antenna
  • Resonant double loop (RDL)

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Authors

  • F. Durodié

  • Ph Chappuis

  • J. Fanthome

  • R. H. Goulding

  • J. Hosea

  • P. U. Lamalle

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