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Predictive modelling of the impact of argon injection on H-mode plasmas in JET with the RITM code (Articolo in rivista)

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Predictive modelling of the impact of argon injection on H-mode plasmas in JET with the RITM code (Articolo in rivista) (literal)

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B Unterberg; D Kalupin; M Z Tokar'; G Corrigan; P Dumortier; A Huber; S Jachmich; M Kempenaars; A Kreter; A M Messiaen;P Monier-Garbet; J Ongena; M E Puiatti; M Valisa; M von Hellermann and Contributors to the EFDA-JET Workprogramme (2004)
Predictive modelling of the impact of argon injection on H-mode plasmas in JET with the RITM code
in Plasma physics and controlled fusion (Print); IOP Publishing Ltd. (Institute of Physics Publishing Ltd), "Bristol ; London" (Regno Unito)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

B Unterberg; D Kalupin; M Z Tokar'; G Corrigan; P Dumortier; A Huber; S Jachmich; M Kempenaars; A Kreter; A M Messiaen;P Monier-Garbet; J Ongena; M E Puiatti; M Valisa; M von Hellermann and Contributors to the EFDA-JET Workprogramme (literal)

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Institut für Plasmaphysik, Forschungszentrum Jülich GmbH, Ass. Euratom-FZ Jülich, D-52425 Jülich, Germany / EURATOM UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxon OX14 3DB, UK / Laboratory for Plasma Physics, Ass. Euratom-Belgian State, Koninklijke Militaire School--Ecole Royale Militaire, B-1000 Brussels, Belgium / FOM-Instituut voor Plasmafysica 'Rijnhuizen', Ass. Euratom-FOM, PO Box 1207, 3430 BE Nieuwegein, The Netherlands / Ass. Euratom-CEA, DRFC, CEA Cadarache, St Paul lez Durance, France / Associazione Euratom-ENEA sulla Fusione, Consorzio RFX, Padova, Italy / (literal)

Titolo

Predictive modelling of the impact of argon injection on H-mode plasmas in JET with the RITM code (literal)

Abstract

Self-consistent modelling of energy and particle transport of the plasma background and impurities has been performed with the code RITM for argon seeded high density H-mode plasmas in JET The code can reproduce both the profiles in the plasma core and the structure of the edge pedestal. The impact of argon on core transport is found to be small; in particular, no significant change in confinement is observed in both experimental and modelling results. The same transport model, which has been used to reproduce density peaking in the radiative improved mode in TEXTOR, reveals a flat density profile in Ar seeded JET H-mode plasmas in agreement with the experimental observations. This behaviour is attributed to the rather flat profile of the safety factor in the bulk of H-mode discharges (literal)

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