The enhanced performance launcher design for the ITER upper port ECH antenna (Contributo in atti di convegno)

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Label
  • The enhanced performance launcher design for the ITER upper port ECH antenna (Contributo in atti di convegno) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.2800521 (literal)
Alternative label
  • M.A. Henderson, R.Chavan, R. Bertizzolo, A. Bruschi, S. Cirant, J. Duron, D. Farina, R. Heidinger, J-D. Landis, E. Poli, G. Ramponi, G. Saibene, O. Sauter, H. Shidara, V.S. Udintsev, H. Zohm, C. Zucca (2007)
    The enhanced performance launcher design for the ITER upper port ECH antenna
    in 17 th Topical Conference on Radio Frequency Power in Plasmas, Clearwater, Florida, USA, May 7-9, 2007
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • M.A. Henderson, R.Chavan, R. Bertizzolo, A. Bruschi, S. Cirant, J. Duron, D. Farina, R. Heidinger, J-D. Landis, E. Poli, G. Ramponi, G. Saibene, O. Sauter, H. Shidara, V.S. Udintsev, H. Zohm, C. Zucca (literal)
Pagina inizio
  • 417 (literal)
Pagina fine
  • 420 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#titoloVolume
  • 17 th Topical Conference on Radio Frequency Power in Plasmas (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#volumeInCollana
  • 933 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • a CRPP, EURATOM - Confédération Suisse, EPFL, CH-1015 Lausanne, Switzerland b Istituto di Fisica Del Plasma, EURATOM - ENEA, CNR Association, 20125 Milano, Italy c Forschungszentrum Karlsruhe, EURATOM-FZK, D-76021 Karlsruhe, Germany (literal)
Titolo
  • The enhanced performance launcher design for the ITER upper port ECH antenna (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
  • 0735404445 (literal)
Abstract
  • The ITER ECH heating and current drive system delivers 24 MW (170 GHz), which can be directed to either the equatorial (EL) or upper (UL) port launching antennas depending on the desired physics application. The UL design uses two front steering (FS) mirrors that sweep eight beams in a poloidal plane providing co-ECCD over the outer half of the plasma cross section. A novel frictionless, backlash-free steering mechanism has been developed for an increased reliability and providing a steering mirror rotation of up to ±7° (±14° for RF beam). The principle aim of the UL is to stabilize the neoclassical tearing modes (NTM) and (by extending the steering range) access the q=1 flux surface for control of the sawtooth oscillation. Increasing the range of the UL can relax the EL steering range, and optimize the EL for enhanced performance with an optimized central deposition and potential for counter ECCD. This paper will summarize the present UL design status along with the proposed design modifications to the UL for enhanced performance and increased reliability. © 2007 American Institute of Physics. (literal)
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