Physics analysis of the ITER ECW system for optimized performance (Articolo in rivista)

Type
Label
  • Physics analysis of the ITER ECW system for optimized performance (Articolo in rivista) (literal)
Anno
  • 2008-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/0029-5515/48/5/054012 (literal)
Alternative label
  • Ramponi G., Farina D., Henderson M. A., Poli E., Sauter O., Saibene G., Zohm H. and Zucca C. (2008)
    Physics analysis of the ITER ECW system for optimized performance
    in Nuclear fusion
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ramponi G., Farina D., Henderson M. A., Poli E., Sauter O., Saibene G., Zohm H. and Zucca C. (literal)
Pagina inizio
  • 054012 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 48 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1. EURATOM ENEA CNR Assoc, Ist Fis Plasma, Milan, Italy 2. Ecole Polytech Fed Lausanne, EURATOM Confederat Suisse, CRPP, CH-1015 Lausanne, Switzerland 3. Max Planck Inst Plasma Phys, IPP Garching, D-85748 Garching, Germany 4. EFDA Close Support Unit, D-85748 Garching, Germany (literal)
Titolo
  • Physics analysis of the ITER ECW system for optimized performance (literal)
Abstract
  • A predictive analysis of the capabilities of the ITER electron cyclotron wave system is presented in this work. Modifications of both the upper launcher and the equatorial launcher aimed at increasing the potentialities of the system are identified and discussed. A modification of the upper launcher has already been incorporated in the updated front steering design called the extended physics launcher. By adopting different deposition ranges for the upper and lower steering mirrors, this design offers the flexibility to drive current from the radial region required for the stabilization of neoclassical tearing modes (NTM) up to that required for sawtooth control, allowing a synergy with the equatorial launcher. Here a comparison of the performance of the new design of the upper launcher with those of a dropped upper launcher is performed, showing that better performance for both NTM stabilization and sawtooth control may be obtained by lowering the upper port location. An analysis of the EC current driven by the equatorial launcher is also presented, showing that adding to the present design the possibility to drive counter-current in addition to the existing co-current capability would increase the flexibility of the system. The behaviour of all launchers at reduced magnetic fields is also discussed. (literal)
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