http://www.cnr.it/ontology/cnr/individuo/prodotto/ID26151
Towards the realization on JET of an integrated H-mode scenario for ITER (Articolo in rivista)
- Type
- Label
- Towards the realization on JET of an integrated H-mode scenario for ITER (Articolo in rivista) (literal)
- Anno
- 2004-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0029-5515/44/1/015 (literal)
- Alternative label
J. Ongena; P. Monier-Garbet; W. Suttrop; Ph. Andrew; M. Bécoulet; R. Budny; Y. Corre; G. Cordey; P. Dumortier; Th. Eich; L. Garzotti; D.L. Hillis; J. Hogan; L.C. Ingesson; S. Jachmich; E. Joffrin; P. Lang; A. Loarte; P. Lomas; G.P. Maddison; D. McDonald; A. Messiaen; M.F.F. Nave; G. Saibene; R. Sartori; O. Sauter; J.D. Strachan; B. Unterberg; M. Valovic; I. Voitsekhovitch; M. von Hellermann; B. Alper; Y. Baranov; M. Beurskens; G. Bonheure; J. Brzozowski; J. Bucalossi; M. Brix; M. Charlet; I. Coffey; M. De Baar; P. De Vries; C. Giroud; C. Gowers; N. Hawkes; G.L. Jackson; C. Jupen; A. Kallenbach; H.R. Koslowski; K.D. Lawson; M. Mantsinen; G. Matthews; F. Milani; M. Murakami; A. Murari; R. Neu; V. Parail; S. Podda; M.E. Puiatti; J. Rapp; E. Righi; F. Sartori; Y. Sarazin; A. Staebler; M. Stamp; G. Telesca; M. Valisa; B. Weyssow; K.D. Zastrow; and EFDA-JET Workprogramme contributors (2004)
Towards the realization on JET of an integrated H-mode scenario for ITER
in Nuclear fusion; IOP Publishing Ltd. (Institute of Physics Publishing Ltd), "Bristol ; London" (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- J. Ongena; P. Monier-Garbet; W. Suttrop; Ph. Andrew; M. Bécoulet; R. Budny; Y. Corre; G. Cordey; P. Dumortier; Th. Eich; L. Garzotti; D.L. Hillis; J. Hogan; L.C. Ingesson; S. Jachmich; E. Joffrin; P. Lang; A. Loarte; P. Lomas; G.P. Maddison; D. McDonald; A. Messiaen; M.F.F. Nave; G. Saibene; R. Sartori; O. Sauter; J.D. Strachan; B. Unterberg; M. Valovic; I. Voitsekhovitch; M. von Hellermann; B. Alper; Y. Baranov; M. Beurskens; G. Bonheure; J. Brzozowski; J. Bucalossi; M. Brix; M. Charlet; I. Coffey; M. De Baar; P. De Vries; C. Giroud; C. Gowers; N. Hawkes; G.L. Jackson; C. Jupen; A. Kallenbach; H.R. Koslowski; K.D. Lawson; M. Mantsinen; G. Matthews; F. Milani; M. Murakami; A. Murari; R. Neu; V. Parail; S. Podda; M.E. Puiatti; J. Rapp; E. Righi; F. Sartori; Y. Sarazin; A. Staebler; M. Stamp; G. Telesca; M. Valisa; B. Weyssow; K.D. Zastrow; and EFDA-JET Workprogramme contributors (literal)
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- LPP/ERM-KMS, Association EURATOM-Belgian State, B-1000 Brussels, Belgium /
CEA Cadarache, F-13108 St Paul lez Durance, France /
Max-Planck Institut für Plasmaphysik, EURATOM Association, D-85748 Garching, Germany /
EURATOM/UKAEA Fusion Association, Culham, UK /
Princeton Plasma Physics Laboratory, Princeton University, NJ 08543, USA /
KTH, Royal Institute of Technology, Association 'EURATOM-VR', Stockholm, Sweden /
Institut für Plasmaphysik, Forschungszentrum Jülich GmbH, EURATOM Association, D-52425 Jülich, Germany /
Consorzio RFX--Associazione Euratom-Enea sulla Fusione, Corso Stati Uniti 4, I-35127 Padova, Italy /
Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA /
FOM-Instituut voor Plasmafysica, EURATOM Association, Postbus 1207, NL-3430 BE Nieuwegein, The Netherlands /
EFDA-Close Support Unit, D-85748 Garching, Germany /
Centro de Fusao Nuclear, Association 'EURATOM-IST', 1096 Lisbon, Portugal /
Centre de Recherches en Physique des Plasmas, Ecole Polytechnique de Lausanne, Association 'EURATOM-Confederation Suisse', Lausanne, Switzerland /
Chalmers University of Technology, Association 'EURATOM-NFR', Goteborg, Sweden /
Equipe Turbulence Plasmas, PIIM, Universite de Provence, Marseille, France /
DIII-D National Fusion Facility, San Diego, CA 92186-5698, USA /
Helsinki University of Technology, Association 'EURATOM-Tekes', Helsinki, Finland /
Associazione EURATOM-ENEA sulla Fusione, Centro Ricerche Frascati, C.P. 65, 00044-Frascati (Rome), Italy /
Universite Libre de Bruxelles, Association 'EURATOM-Belgian State', Physique Théorique et Mathématiqué, /
Unite de Physique des Plasmas, 1050 Brussels, Belgium (literal)
- Titolo
- Towards the realization on JET of an integrated H-mode scenario for ITER (literal)
- Abstract
- ELMy H-mode experiments at JET in 2000/mid-2002 have focused on discharges with normalized parameters for plasma density, energy confinement and beta similar to those of the ITER Q(DT) = 10 reference regime (n/n(GW) similar to 0.85, H(98(y,2)) similar to 1, beta(N) similar to 1.8). ELMy H-mode plasmas have been realized reaching or even exceeding those parameters in steady-state conditions (up to similar to5 s or 12tau(epsilon)) in a reproducible way and only limited by the duration of the additional heating phase. These results have been obtained (a) in highly triangular plasmas, by increasing the average triangularity delta towards the ITER reference value (delta similar to 0.5), and (b) in plasmas at low triangularity (delta similar to 0.2) by seeding of Ar and placing the X-point of the plasma on the top of the septum. Pellet injection from the high field side is a third method yielding high density and high confinement, albeit not yet under steady-state conditions. In highly triangular plasmas the influence of input power, plasma triangularity and impurity seeding with noble gases has been studied. Density profile peaking at high densities has been obtained in (a) impurity seeded low triangularity discharges, (b) ELMy H-modes with low levels of input power and (c) discharges fuelled with pellet injection from the high field side. New ELM behaviour has been observed in high triangularity discharges at high density, opening a possible route to ELM heat load mitigation, which can be further amplified by Ar impurity seeding. Current extrapolations of the ELM heat load to ITER show possibly a window for Type I ELM operation. Confinement scaling studies indicate an increase in confinement with triangularity and density peaking, and a decrease in confinement with the Greenwald number. In addition, experiments in H isotope and He indicate tau(E) proportional to M(0.19)Z(-0.59). The threshold power for the L-H transition in He plasmas shows the same parametric dependence as in D plasmas, but with a 50% higher absolute value (literal)
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