Progress in low-aspect-ratio RFP studies in RELAX (Abstract/Comunicazione in atti di convegno)

Type

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

Label

• Progress in low-aspect-ratio RFP studies in RELAX (Abstract/Comunicazione in atti di convegno) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Alternative label

• Sadao Masamune; A. Sanpei; K. Oki; D. Fukabori; K. Deguchi; S. Nakaki; H. Himura; N. Mizuguchi; D. Den Hartog; R. Paccagnella (2011)
  Progress in low-aspect-ratio RFP studies in RELAX
  in 53rd Annual Meeting of the APS Division of Plasma Physics (APS 2011), Salt Lake City, Utah, USA, November 14-18, 2011
  (literal)

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

• Sadao Masamune; A. Sanpei; K. Oki; D. Fukabori; K. Deguchi; S. Nakaki; H. Himura; N. Mizuguchi; D. Den Hartog; R. Paccagnella (literal)

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

• Abstract ID: BAPS.2011.DPP.PO4.10 http://absimage.aps.org/image/DPP11/MWS_DPP11-2011-001180.pdf To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.DPP.PO4.10 ISSN rivista: 0003-0503 (print and linking); Oral 3:48 PM-4:00 PM November 16, 2011 (literal)

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

• http://meeting.aps.org/Meeting/DPP11/Event/152780 (literal)

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

• Bulletin of the American Physical Society - 53rd Annual Meeting of the APS Division of Plasma Physics (literal)

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

• 56/16 (literal)

Note

• Comunicazione (literal)

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

• 1 Kyoto Institute of Technology; 2 NIFS; 3 U. Wisconsin; 4 Consorzio RFX. (Sadao Masamune 1; A. Sanpei 2; K. Oki 2; D. Fukabori 2; K. Deguchi 2; S. Nakaki 2; H. Himura 2; N. Mizuguchi 2; D. Den Hartog 3; R. Paccagnella 4) (literal)

Titolo

• Progress in low-aspect-ratio RFP studies in RELAX (literal)

Abstract

• Equilibrium analyses have shown that the aspect ratio A is one of the important parameters for optimization of the RFP configuration because it affects the q profile or fraction of the pressure-driven bootstrap current. RELAX (A=R/a=0.5m/0.25m) is a low-A RFP machine to explore the potential advantages of low-A configurations. The discharge and plasma parameters in RELAX to date are as follows: plasma current up to 100kA, discharge duration of up to 2.5ms, electron density in the range from 0.2 to 2.0× 1019 m-3, and electron temperature <100eV from double-filtered soft-X ray (SXR) measurements. Characteristic plasma behaviors in very shallow reversal and extremely deep reversal regions have been reported. A non-linear 3-D MHD simulation for A=2 RFP configurations has revealed that the quasi-single helicity (QSH) state with experimentally observed m/n=1/4 structure can be realized in shallow reversal cases. New diagnostics are being installed in RELAX: a soft-X ray (SXR) imaging system for the study of 3-D structural studies on MHD instabilities, Thomson scattering system, and 140GHz interferometer for higher density regimes. The vacuum vessel has been covered with 64 saddle coils for RWM stabilization but with limited number of power supplies at present. (literal)

Editore

• American Physical Society (APS) (Editore)

Prodotto di

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

Autore CNR

• ROBERTO PACCAGNELLA (Unità di personale interno)

Incoming links:

Prodotto

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

Autore CNR di

• ROBERTO PACCAGNELLA (Unità di personale interno)

Editore di

• American Physical Society (APS) (Editore)