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

Authors
Journal
Fusion Engineering and Design
0920-3796
Publisher
Elsevier
Publication Date
Volume
74
Identifiers
DOI: 10.1016/j.fusengdes.2005.08.019
Keywords
  • Icrf Antenna
  • Resonant Double Loop (Rdl)
  • High Power Prototype
Disciplines
  • Design

Abstract

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/m 2, 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.

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