Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1088/0741-3335/53/8/084001 (literal)

Alternative label

• W. A. Cooper; J. P. Graves ; O. Sauter; D. Terranova; M. Gobbin; L. Marrelli; P. Martin; I. Predebon (2011)
  Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores
  in Plasma physics and controlled fusion (Print); IOP Publishing Ltd., Bristol BS1 6BE (Regno Unito)
  (literal)

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

• W. A. Cooper; J. P. Graves ; O. Sauter; D. Terranova; M. Gobbin; L. Marrelli; P. Martin; I. Predebon (literal)

Pagina inizio

• 084001 (literal)

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

• Article Number: 084001 - La rivista è pubblicata anche online con ISSN 1361-6587. (literal)

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

• http://iopscience.iop.org/0741-3335/53/8/084001/ (literal)

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

• 53 (literal)

Rivista

• Plasma physics and controlled fusion (Rivista)

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

• Issue 8; Article Number 084001 (literal)

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

• 14 (literal)

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

• 8 (literal)

Note

• Scopu (literal)
• ISI Web of Science (WOS) (literal)

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

• Ecole Polytech Fed Lausanne, Assoc Euratom Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland; Ecole Polytech Fed Lausanne, Assoc Euratom Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland; Ecole Polytech Fed Lausanne, Assoc Euratom Confederat Suisse, Ctr Rech Phys Plasmas, CH-1015 Lausanne, Switzerland; Consorzio RFX, Associazione EURATOM-ENEA sulla Fuzione, Padova, Italy; Consorzio RFX, Associazione EURATOM-ENEA sulla Fuzione, Padova, Italy; Consorzio RFX, Associazione EURATOM-ENEA sulla Fuzione, Padova, Italy; Consorzio RFX, Associazione EURATOM-ENEA sulla Fuzione, Padova, Italy; Consorzio RFX, Associazione EURATOM-ENEA sulla Fuzione, Padova, Italy (literal)

Titolo

• Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores (literal)

Abstract

• Bifurcated magnetohydrodynamic (MHD) equilibrium states are computed for ITER hybrid scenario and RFX-mod SHAx configurations with very flat or reversed core magnetic shear conditions. In the ITER studies, the minimum inverse rotational transform qmin is near unity, while for RFX-mod it is 1/8. Two equilibrium states are obtained: one is axisymmetric, the other displays a 3D helical core. In tokamak devices, the structure resembles a saturated ideal MHD internal kink mode. In the reversed-field pinch, the structure is seven-fold toroidally periodic. The equilibrium magnetic field spectrum in the Boozer coordinate frame is calculated in both the ITER and RFX-mod configurations and the implications are discussed. The RFX-mod equilibria are strongly unstable to external ideal MHD kink modes, which become stabilized with a closely fitting conducting shell when the equilibrium state has a weak reversed core shear. It is marginally unstable with a monotonic q-profile. Unstable modes are driven by the Ohmic current, with pressure and Pfirsch-Schl¨uter currents having a very weak effect. The external kink mode spectrum is dominated by coupled m = 1, n = 6 and m = 2, n = 13 Fourier components, which revert to m = 1, n = 8 and m = 2, n = 15 terms with a conducting wall in proximity to the plasma-vacuum interface. (literal)

Editore

• IOP Publishing Ltd. (Editore)

Prodotto di

• Esperimento RFX ed attività collegate (ET.P05.003.001) (Modulo)
• Institute of ionized gas (IGI) (Istituto)

Autore CNR

• MARCO GOBBIN (Unità di personale interno)
• ITALO PREDEBON (Unità di personale interno)
• DAVID TERRANOVA (Persona)
• LIONELLO MARRELLI (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• ITALO PREDEBON (Unità di personale interno)
• LIONELLO MARRELLI (Unità di personale interno)
• DAVID TERRANOVA (Persona)
• MARCO GOBBIN (Unità di personale interno)

Prodotto

• Institute of ionized gas (IGI) (Istituto)
• Esperimento RFX ed attività collegate (ET.P05.003.001) (Modulo)

Editore di

• IOP Publishing Ltd. (Editore)

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

• Plasma physics and controlled fusion (Rivista)

Insieme di parole chiave di

• Keywords of "Magnetohydrodynamic equilibrium and the stability of tokamak and reversed- field pinch systems with 3D helical cores" (Insieme di parole chiave)