http://www.cnr.it/ontology/cnr/individuo/prodotto/ID168600
Overview of the FTU results (Articolo in rivista)
- Type
- Label
- Overview of the FTU results (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0029-5515/47/10/S10 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- V. Pericoli-Ridolfini; A. Alekseyev; B. Angelini; S.V. Annibaldi; M.L. Apicella; G. Apruzzese; E. Barbato; J. Berrino; A. Bertocchi; W. Bin; F. Bombarda; G. Bracco; A. Bruschi2; P. Buratti; G. Calabrò; A. Cardinali; L. Carraro; C. Castaldo; C. Centioli; R. Cesario; S. Cirant; V. Cocilovo; F. Crisanti; G. D'Antona; R. De Angelis; M. De Benedetti; F. De Marco; B. Esposito; D. Frigione; L. Gabellieri; F. Gandini; E. Giovannozzi; G. Granucci; F. Gravanti; G. Grossetti; G. Grosso; F. Iannone; H. Kroegler; V. Lazarev; E. Lazzaro; M. Leigheb; I.E. Lyublinski; L. Lubyako; G. Maddaluno; M. Marinucci; D. Marocco; J.R. Martin-Solis; G. Mazzitelli; C. Mazzotta; V. Mellera; F. Mirizzi; G. Monari; A. Moro; V. Muzzini; S. Nowak; F.P. Orsitto; L. Panaccione; M. Panella; L. Pieroni; S. Podda; M.E. Puiatti; G. Ravera; G. Regnoli; F. Romanelli; M. Romanelli; A. Shalashov; A. Simonetto; P. Smeulders; C. Sozzi; E. Sternini; U. Tartari; B. Tilia; A.A. Tuccillo; O. Tudisco; M. Valisa; A. Vertkov; V. Vitale; G. Vlad; R. Zagórski; F. Zonca (literal)
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- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
- Note
- ISI Web of Science (WOS) (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Associazione Euratom-ENEA sulla Fusione, C.R. Frascati, 00044, Frascati, Roma, Italy /
Troitsk Institute for Innovation and Fusion Research Troitsk, Moscow Region, 142190, Russian Federation /
Associazione EURATOM-ENEA, IFP-CNR, Via R. Cozzi, 53 - 20125 Milano, Italy /
Consozio RFX, Corso Stati Uniti 4, I-35100, Padova, Italy /
Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy /
Federal State Unitary Enterprise \"Red Star\", 1A, Electrolitnyi Proezd, Moscow, 115230, Russian Federation /
Institute of Applied Physics, Russian Academy of Science, Nizhny Novgorod, Russia /
Universal Carlos III de la Universidad 30, 28911 Madrid, Spain /
Institute of Plasma Physics and Laser Microfusion, EURATOM Association, 01-497, Warsaw, Poland / (literal)
- Titolo
- Overview of the FTU results (literal)
- Abstract
- Steady internal transport barriers (ITBs) are obtained in FTU at ITER-relevant magnetic field and density
(ne0 ? 1.3 × 1020 m-3) in almost full non-inductive discharges, sustained by lower hybrid (LH) and electron
cyclotron (EC) RF waves sources. Similarly to ITER, only electrons are directly heated which in turn heat ions
via collisions and no momentum is injected. Collisions do not affect the mechanisms of turbulence suppression
and energy transport. At the highest densities the ion thermal conductivity remains ? the ohmic level, while the
energy confinement time exceeds the ITER 97-L scaling by about 1.6 times. The ITB radius can be varied in the
range 0.2 ? r/a ? 0.65 modifying the radial profile of the LH driven current, acting mainly on the safety factor q.
A liquid lithium limiter (LLL) of innovative design, composed of a mesh of porous capillaries, has been tested
successfully for the first time on a medium size tokamak. The LLL surface showed no damage up to the maximum
thermal load of 5MWm-2. With LLL cleaner plasmas are obtained and the particle recycling strongly drops; new
interesting regimes of particle transport arise at high density, with highly peaked profiles. Significant progress in
disruption mitigation by means of EC power has shown that they can be avoided when absorption occurs directly
on the MHD islands driving the disruption. Feedback control/suppression of MHD tearing modes (TM, m = 2)
with EC waves has been achieved relying on a real-time detection of the TM and of its radial location. Testing
the collective Thomson scattering in ITER-relevant configuration has stressed that avoiding backscattered radiation
to the source is very crucial. The theory of the evolution of fishbone-like instabilities driven by LH generated
supra-thermal electrons in FTU is outlined, and its relation to the trapped ? particles dynamics is stressed. (literal)
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