Synergy between LH and ECH Waves in the FTU Tokamak (Contributo in atti di convegno)

Type
Label
  • Synergy between LH and ECH Waves in the FTU Tokamak (Contributo in atti di convegno) (literal)
Anno
  • 2001-01-01T00:00:00+01:00 (literal)
Alternative label
  • V. Pericoli-Ridolfini1), Y. Peysson2), R. Dumont2), G. Giruzzi2), G. Granucci3), L. Panaccione1), L. Delpech2), B. Tilia1), FTU Team1), FTU-ECH Team3) (2001)
    Synergy between LH and ECH Waves in the FTU Tokamak
    in 18th IAEA Fusion Energy Conference, Sorrento, Italy, 4-10 October 2000
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • V. Pericoli-Ridolfini1), Y. Peysson2), R. Dumont2), G. Giruzzi2), G. Granucci3), L. Panaccione1), L. Delpech2), B. Tilia1), FTU Team1), FTU-ECH Team3) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www-pub.iaea.org/MTCD/publications/PDF/csp_008c/html/node444.htm#80231 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 8/C (literal)
Rivista
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  • 1) Associazione Euratom-ENEA sulla Fusione, CR Frascati, 00044 Frascati, Rome, Italy 2) Association Euratom-CEA sur la Fusion DRFC/SCCP, CEA/Cadarache, 13108 St. Paul-lez-Durance, France 3) Associazione Euratom-ENEA-CNR sulla Fusione, Istituto di Fisica del Plasma, Via R. Cozzi 20125, Milano, Italy (literal)
Titolo
  • Synergy between LH and ECH Waves in the FTU Tokamak (literal)
Abstract
  • The effects of the simultaneous injection of LH, up to 1 MW, and ECH power, up to 0.75 MW, have been studied in FTU. In the absence of the cold EC resonance in the plasma ( BT = 7.2T), the suprathermal electron tail generated by LHCD absorbs the ECH power effectively, up to 80%. In a restricted parameter range, additional electron heating due to ECH waves (up to 1.2 keV for PECH = 0.7MW) is also observed. With the cold resonance at the centre ( BT = 5.3T) and no absorption on the tail, the ECH power injection into a sawteeth and MHD free plasma, fully sustained by LHCD, causes a quasi-stationary large increase of the electron temperature in a region r/a < 0.5, with Te0 > 4keV for PECH = 0.35MW only. This strong heating exceeds the predictions of the mixed Bohm/gyro-Bohm model with magnetic shear correction, which, instead reproduces the LH phase well. (literal)
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