Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch (Articolo in rivista)

Type

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

Label

• Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch (Articolo in rivista) (literal)

Anno

• 2006-01-01T00:00:00+01:00 (literal)

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

• 10.1063/1.2160519 (literal)

Alternative label

• Franz P.; L. Marrelli; P. Piovesan; I. Predebon; F. Bonomo; L. Frassinetti; P. Martin; G. Spizzo; B. E. Chapman; D. Craig; J.S. Sarff (2006)
  Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch
  in Physics of plasmas
  (literal)

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

• Franz P.; L. Marrelli; P. Piovesan; I. Predebon; F. Bonomo; L. Frassinetti; P. Martin; G. Spizzo; B. E. Chapman; D. Craig; J.S. Sarff (literal)

Pagina inizio

• 012510 (literal)

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

• 13 (literal)

Rivista

• Physics of plasmas (Rivista)

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

• Article Number 012510, Issue 1 (literal)

Note

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

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

• P. Franz, L. Marrelli, P. Piovesan, and I. Predebon: Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova, Italy F. Bonomo; Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova, Italy and Department of Physics, University of Padova, via 8 Febbraio, 2-35122 Padova, Italy / L. Frassinetti: Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova, Italy / P. Martin: Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova, Italy and Department of Physics, University of Padova, via 8 Febbraio, 2-35122 Padova, Italy / G. Spizzo: Consorzio RFX, Euratom-ENEA Association, Corso Stati Uniti 4, 35127 Padova, Italy / B. E. Chapman: Department of Physics, University of Wisconsin-Madison, 1150 University Avenue, Madison, Wisconsin 53706 / D. Craig and J. S. Sarff: Department of Physics, University of Wisconsin-Madison, and NSF Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, 1150 University Avenue, Madison, Wisconsin 53706 (literal)

Titolo

• Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch (literal)

Abstract

• A detailed study of the dynamics and magnetic topological effects of resistive-tearing modes is presented for different operational regimes in the Madison Symmetric Torus reversed-field pinch [R. N. Dexter , Fusion Technol. 19, 131 (1991)]. Soft-x-ray tomography and magnetic measurements, along with numerical reconstruction of magnetic-field lines with the ORBIT code [R. B. White and M. S. Chance, Phys. Fluids 27, 2455 (1984)], have been employed. Magnetic-mode dynamics has been investigated in standard plasmas during the transition to the quasi-single helicity state, in which a single mode dominates the mode spectrum. Single helical soft-x-ray structures are studied with tomography in these cases. These structures are associated with magnetic islands, indicating that helical flux surfaces appear in the plasma. Mode dynamics has also been examined during auxiliary inductive current drive, the goal of which is to reduce the tearing-mode amplitudes. In this case the phenomenology of the soft-x-ray structures appearing in the plasma is more complex. In fact, when a quasi-single helicity spectrum occurs, a single island bigger than in the standard case is usually found. On the other hand, when all modes decrease, two helical soft-x-ray structures are observed, with the same helicity as the two innermost resonant modes. This constitutes the first direct evidence of magnetic-chaos reduction during auxiliary inductive current drive, which is responsible for the achievement of the best confinement in the reversed-field pinch configuration up to now. (literal)

Prodotto di

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

Autore CNR

• LIONELLO MARRELLI (Unità di personale interno)
• GIANLUCA SPIZZO (Persona)
• ITALO PREDEBON (Unità di personale interno)
• FEDERICA BONOMO (Unità di personale interno)
• PAOLO PIOVESAN (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch" (Insieme di parole chiave)

Incoming links:

Autore CNR di

• ITALO PREDEBON (Unità di personale interno)
• LIONELLO MARRELLI (Unità di personale interno)
• GIANLUCA SPIZZO (Persona)
• PAOLO PIOVESAN (Unità di personale interno)
• FEDERICA BONOMO (Unità di personale interno)

Prodotto

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

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

• Physics of plasmas (Rivista)

Insieme di parole chiave di

• Keywords of "Tomographic imaging of resistive mode dynamics in the Madison Symmetric Torus reversed-field pinch" (Insieme di parole chiave)