Parametric dependence and control of 3D helical structures in MST (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Parametric dependence and control of 3D helical structures in MST (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Alternative label
  • B.E. Chapman; D.J. Den Hartog; J.A. Goetz; M.B. McGarry; E. Parke; J.A. Reusch; J.S. Sarff; W.F. Bergerson; D.L. Brower; W.X. Ding; L. Lin; F. Auriemma; S. Cappello; P. Franz; P. Innocente; R. Lorenzini; E. Martines; B. Momo; P. Piovesan; M.E. Puiatti; M. Spolaore; D. Terranova; P. Zanca (2011)
    Parametric dependence and control of 3D helical structures in MST
    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
  • B.E. Chapman; D.J. Den Hartog; J.A. Goetz; M.B. McGarry; E. Parke; J.A. Reusch; J.S. Sarff; W.F. Bergerson; D.L. Brower; W.X. Ding; L. Lin; F. Auriemma; S. Cappello; P. Franz; P. Innocente; R. Lorenzini; E. Martines; B. Momo; P. Piovesan; M.E. Puiatti; M. Spolaore; D. Terranova; P. Zanca (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Abstract ID: BAPS.2011.DPP.PO4.8; Oral 3:24 PM-3:36 PM To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.DPP.PO4.8; ISSN Rivista 0003-0503 (print and linking); (literal)
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  • http://meeting.aps.org/Meeting/DPP11/Event/152778 (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)
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  • 1) UW-Madison; 2) UCLA; 3) Consorzio RFX. (B.E. Chapman1; D.J. Den Hartog 1; J.A. Goetz 1; M.B. McGarry 1; E. Parke 1; J.A. Reusch 1; J.S. Sarff 1; W.F. Bergerson 2; D.L. Brower 2; W.X. Ding 2; L. Lin 2; F. Auriemma 3; S. Cappello 3; P. Franz 3; P. Innocente 3; R. Lorenzini 3; E. Martines 3; B. Momo 3; P. Piovesan 3; M.E. Puiatti 3; M. Spolaore 3; D. Terranova 3; P. Zanca 3) (literal)
Titolo
  • Parametric dependence and control of 3D helical structures in MST (literal)
Abstract
  • MST plasmas with a central 3D helical structure are now routinely achievable. As in RFX-mod, the stellarator-like structure arises in otherwise toroidally axisymmetric plasmas when the innermost-resonant m = 1 tearing mode grows to large amplitude and dominates the core-resonant-mode spectrum. The tearing mode spectrum in MST varies strongly with toroidal plasma current. Peaked spectra with a helical structure occur most reliably at high Ip (0.6 MA), while at low Ip (0.2 MA), the spectra are quite flat. This trend is like that in RFX-mod and may reflect a dependence on the Lundquist number. Preliminary MST data also show that manipulation of the inductive electric field has a significant impact, driving the dominant mode to large amplitude more robustly, and reducing the other modes. At high Ip, Te(0) $>$ 1 keV with a possible several-fold increase in the energy confinement time. Supported by USDOE. (literal)
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