Avoidance of disruptions at high betaN in ASDEX Upgrade with off-axis ECRH (Articolo in rivista)

Type

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

Label

• Avoidance of disruptions at high betaN in ASDEX Upgrade with off-axis ECRH (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

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

• 10.1088/0029-5515/51/8/083051 (literal)

Alternative label

• Esposito, B [ 1 ] ; Granucci, G [ 2 ] ; Maraschek, M [ 3 ] ; Nowak, S [ 2 ] ; Gude, A [ 3 ] ; Igochine, V [ 3 ] ; Lazzaro, E [ 2 ] ; McDermott, R [ 3 ] ; Poli, E [ 3 ] ; Stober, J [ 3 ] ; Suttrop, W [ 3 ] ; Treutterer, W [ 3 ] ; Zohm, H [ 3 ] ; Brunetti, D [ 2 ]; and ASDEX Upgrade Team (2011)
  Avoidance of disruptions at high betaN in ASDEX Upgrade with off-axis ECRH
  in Nuclear fusion; IOP Publishing Ltd., Bristol BS1 6BE (Regno Unito)
  (literal)

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

• Esposito, B [ 1 ] ; Granucci, G [ 2 ] ; Maraschek, M [ 3 ] ; Nowak, S [ 2 ] ; Gude, A [ 3 ] ; Igochine, V [ 3 ] ; Lazzaro, E [ 2 ] ; McDermott, R [ 3 ] ; Poli, E [ 3 ] ; Stober, J [ 3 ] ; Suttrop, W [ 3 ] ; Treutterer, W [ 3 ] ; Zohm, H [ 3 ] ; Brunetti, D [ 2 ]; and ASDEX Upgrade Team (literal)

Pagina inizio

• 083051 (literal)

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

• http://iopscience.iop.org/0029-5515/51/8/083051/ (literal)

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

• 51 (literal)

Rivista

• Nuclear fusion (Rivista)

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

• 8 (literal)

Note

• ISI Web of Science (WOS) (literal)

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

• [ 1 ] CR Frascati, Assoc EURATOM ENEA Fus, I-00044 Frascati, Italy [ 2 ] IFP CNR, Assoc EURATOM ENEA Fus, I-20125 Milan, Italy [ 3 ] EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany (literal)

Titolo

• Avoidance of disruptions at high betaN in ASDEX Upgrade with off-axis ECRH (literal)

Abstract

• Experiments on disruption avoidance have been carried out in H-mode ASDEX Upgrade plasmas: the localized perpendicular injection of ECRH (1.5MW similar to 0.2P(tot)) onto the q = 2 resonant surface has led to the delay and/or complete avoidance of disruptions in a high beta(N) scenario (I-p = 1 MA, B-t = 2.1 T, q(95) similar to 3.6, with NBI similar to 7.5 MW). In these discharges (at low q95 and low density) neoclassical tearing modes (NTMs) are excited: the growth and locking of the m/n = 2/1 mode leads to the disruption. The scheme of the experiment is successfully applied in the same way as in previous disruption avoidance experiments in FTU and ASDEX Upgrade. As soon as the disruption precursor signal (the locked mode detector and/or the loop voltage) reaches the preset threshold, the ECRH power is triggered by real-time control. A poloidal scan in deposition location (rho(dep)) has been carried out by setting the poloidal launching mirrors at different angles in each discharge. The results depend on rho(dep): complete disruption avoidance can be achieved when the power is injected close to or onto the 2/1 island. When ECRH is injected outside the island (either at radii inside or outside the q = 2 surface), the discharge is disrupted as in the reference case. (literal)

Editore

• IOP Publishing Ltd. (Editore)

Prodotto di

• Fisica e Tecnologia del Plasma e della Fusione Termonucleare (ET.P05.001.001) (Modulo)
• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)

Autore CNR

• ENZO LAZZARO (Persona)
• SILVANA NOWAK (Persona)
• GUSTAVO GRANUCCI (Persona)

Incoming links:

Autore CNR di

• GUSTAVO GRANUCCI (Persona)
• ENZO LAZZARO (Persona)
• SILVANA NOWAK (Persona)

Prodotto

• Istituto di fisica del plasma \"Piero Caldirola\" (IFP) (Istituto)
• Fisica e Tecnologia del Plasma e della Fusione Termonucleare (ET.P05.001.001) (Modulo)

Editore di

• IOP Publishing Ltd. (Editore)

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

• Nuclear fusion (Rivista)