3D Boundary Behavior in RFX-mod: Role of Advected Quantities (Abstract/Poster in atti di convegno)

Type

• Abstract/Poster in atti di convegno (Classe)
• Prodotto della ricerca (Classe)

Label

• 3D Boundary Behavior in RFX-mod: Role of Advected Quantities (Abstract/Poster in atti di convegno) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Alternative label

• P. Scarin; M. Agostini; L. Carraro; G. Ciaccio; G. Spizzo; N. Vianello (2013)
  3D Boundary Behavior in RFX-mod: Role of Advected Quantities
  in 55th Annual Meeting of the APS Division of Plasma Physics, Denver, Colorado, USA, November 11-15, 2013
  (literal)

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

• P. Scarin; M. Agostini; L. Carraro; G. Ciaccio; G. Spizzo; N. Vianello (literal)

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

• Session PP8: Poster Session VI: Mixing Mini-Conference, Sources, Edge and Divertor, MHD, Waves, Instabilities & Reconnection; Abstract: PP8.00059. Il periodico esiste dal 1925, con ISSN 0003-0503, come risulta dal record ACNP. Il record ISSN invece non è attualizzato. (literal)

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

• http://meetings.aps.org/Meeting/DPP13/Event/201026 (literal)

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

• Bulletin of the American Physical Society - 55th Annual Meeting of the APS Division of Plasma Physics (literal)

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

• 58/16 (literal)

Note

• Abstract (literal)

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

• Consorzio RFX, Padova, Italy (literal)

Titolo

• 3D Boundary Behavior in RFX-mod: Role of Advected Quantities (literal)

Abstract

• The boundary of the RFX-mod Reversed Field Pinch device is characterized by weak magnetic chaos affecting ion and electron diffusion. Particle transport is determined by magnetic islands and by the electrostatic potential which arises from the interaction of the ambipolar constraint on electron-ion motion, with plasma-wall interaction (PWI). We will present an extensive summary of experimental observations, indicating that plasma pressure, floating potential, particle influx, plasma flow (or equivalently, radial electric field Er) and turbulence structures are modulated according to the the MHD modes (m/n=0/1 and 1/7) that determine the geometry of the edge. The distortions (``ripple'') of magnetic flux surfaces, along the toroidal and poloidal directions, are due to the presence of magnetic islands, whose X-points in the RFP are characterized by a negative charge excess (electron accumulation). Apparently, RMPs in Tokamaks are characterized by electron accumulation near the O-points of those islands, due to a different level of magnetic chaos. The presence of an Er modulation along the angles, makes the edge plasma sensitive to advected quantities through particle energy, energy-exchanging collisions and particle recycling at the wall. We will also explore the feedback of the change of turbulence properties on MHD, by analyzing the dependence of the 0/1 mode amplitude on the Prandtl number. (literal)

Editore

• American Physical Society (APS) (Editore)

Prodotto di

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

Autore CNR

• LORELLA CARRARO (Unità di personale interno)
• MATTEO AGOSTINI (Unità di personale interno)
• GIANLUCA SPIZZO (Persona)
• PAOLO SCARIN (Persona)
• NICOLA VIANELLO (Unità di personale interno)

Incoming links:

Prodotto

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

Autore CNR di

• LORELLA CARRARO (Unità di personale interno)
• PAOLO SCARIN (Persona)
• GIANLUCA SPIZZO (Persona)
• NICOLA VIANELLO (Unità di personale interno)
• MATTEO AGOSTINI (Unità di personale interno)

Editore di

• American Physical Society (APS) (Editore)