Overview of Results from the MST Reversed Field Pinch Experiment (Abstract/Comunicazione in atti di convegno)

Type
Label
  • Overview of Results from the MST Reversed Field Pinch Experiment (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • J. Sarff; A. Almagri; J. Anderson; F. Auriemma; M. Borchardt; B. Breizman; D. Brower; S. Cappello; W. Cappechi; D. Carmody; K. Caspary; B. Chapman; D. Craig; V. Davydenko; P. Deichuli; D. Demers; J. Duff; D. Den Hartog; W. Ding; S. Eilerman; A. Falkowski; P. Fimognari; C. Forest; P. Franz; M. Galante; J. Goetz; R. Harvey; D. Holly; P. Innocente; A. Ivanov; J. Koliner; S. Kumar; J. D. Lee; M. Li; L. Lin; D. Liu; R. Lorenzini; E. Martines; K. McCollam; M. McGarry; V. Mirnov; B. Momo; L. Morton; S. Munaretto; M. Nornberg; P. Nonn; S. Oliva; E. Parke; P. Piovesan; S. Polosatkin; M. J. Pueschel; M. E. Puiatti; J. Reusch; J. Sauppe; A. Seltzman; C. Sovinec; D. Spong; M. Spolaore; H. Stephens; N. Stupishin; D. Terranova; M. Thomas; J. Titus; J. Trianna; P. Terry; J. Waksman; G. Whelan; P. Zanca; L. Zheng (2014)
    Overview of Results from the MST Reversed Field Pinch Experiment
    in 25th IAEA Fusion Energy Conference (FEC 2014), St. Petersburg, Russian Federation, 13-18 October 2014
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • J. Sarff; A. Almagri; J. Anderson; F. Auriemma; M. Borchardt; B. Breizman; D. Brower; S. Cappello; W. Cappechi; D. Carmody; K. Caspary; B. Chapman; D. Craig; V. Davydenko; P. Deichuli; D. Demers; J. Duff; D. Den Hartog; W. Ding; S. Eilerman; A. Falkowski; P. Fimognari; C. Forest; P. Franz; M. Galante; J. Goetz; R. Harvey; D. Holly; P. Innocente; A. Ivanov; J. Koliner; S. Kumar; J. D. Lee; M. Li; L. Lin; D. Liu; R. Lorenzini; E. Martines; K. McCollam; M. McGarry; V. Mirnov; B. Momo; L. Morton; S. Munaretto; M. Nornberg; P. Nonn; S. Oliva; E. Parke; P. Piovesan; S. Polosatkin; M. J. Pueschel; M. E. Puiatti; J. Reusch; J. Sauppe; A. Seltzman; C. Sovinec; D. Spong; M. Spolaore; H. Stephens; N. Stupishin; D. Terranova; M. Thomas; J. Titus; J. Trianna; P. Terry; J. Waksman; G. Whelan; P. Zanca; L. Zheng (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni
  • Talk OV/5-3; Book of Abstract page 127 (url pdf page 131) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www-pub.iaea.org/MTCD/Meetings/PDFplus/2014/cn221/cn221ConferenceProgrammeAndAbstracts.pdf (literal)
Note
  • Comunicazione (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 University of Wisconsin-Madison, Madison, WI, USA; / 2 Consorzio RFX, Associazione Euratom-ENEA sulla Fusione, Padova, Italy; / 3 University of Texas at Austin, Austin, TX, USA; / 4 University of California Los Angeles, CA, USA; / 5 Wheaton College, Wheaton, USA; / 6 Budker Institute of Nuclear Physics, Novosibirsk, Russian Federation; / 7 Xantho Technologies, LLC, Madison, Wisconsin, USA; / 8 CompX, Del Mar, California, USA; / 9 University of California Irvine, CA, USA; / 10 Oak Ridge National Laboratory, Oak Ridge, TN, USA; / 11 Pierce College, Los Angeles, CA, USA; / 12 Florida A&M University, Tallahassee, FL, USA. (J. Sarff 1 , A. Almagri 1 , J. Anderson 1 , F. Auriemma 2 , M. Borchardt 1 , B. Breizman 3 , D. Brower 4 , S. Cappello 2 , W. Cappechi 1 , D. Carmody 1 , K. Caspary 1 , B. Chapman 1 , D. Craig 5 , V. Davydenko 6 , P. Deichuli 6 , D. Demers 7 , J. Duff 1 , D. Den Hartog 1 , W. Ding 4 , S. Eilerman 1 , A. Falkowski 1 , P. Fimognari 7 , C. Forest 1 , P. Franz 2 , M. Galante 1 , J. Goetz 1 , R. Harvey 8 , D. Holly 1 , P. Innocente 2 , A. Ivanov 6 , J. Koliner 1 , S. Kumar 1 , J. D. Lee 1 , M. Li 3 , L. Lin 4 , D. Liu 9 , R. Lorenzini 2 , E. Martines 2 , K. McCollam 1 , M. McGarry 1 , V. Mirnov 1 , B. Momo 2 , L. Morton 1 , S. Munaretto 1 , M. Nornberg 1 , P. Nonn 1 , S. Oliva 1 , E. Parke 1 , P. Piovesan 2 , S. Polosatkin 6 , M. J. Pueschel 1 , M. E. Puiatti 2 , J. Reusch 1 , J. Sauppe 1 , A. Seltzman 1 , C. Sovinec 1 , D. Spong 10 , M. Spolaore 2 , H. Stephens 11 , N. Stupishin 6 , D. Terranova 2 , M. Thomas 1 , J. Titus 12 , J. Trianna 1 , P. Terry 1 , J. Waksman 1 , G. Whelan 1 , P. Zanca 2 , and L. Zheng 3) (literal)
Titolo
  • Overview of Results from the MST Reversed Field Pinch Experiment (literal)
Abstract
  • This overview of results from the MST reversed field pinch program summarizes physics im- portant for the advancement of the RFP as well as for improved understanding of toroidal magnetic confinement in general. Topics include energetic particle effects, 3D helical equilibria, and density limit studies, microturbulence, ion heating, and magnetic self-organization physics. With neutral beam injection, several bursty energetic particle (EP) modes are observed. The profiles of the magnetic and density fluctuations associated with these EP-modes are measured using an FIR interferometer- polarimeter. Equilibrium reconstructions of the quasi-single-helicity 3D helical state are provided by the V3FIT code that now incorporates several of MST's advanced diagnostics. A predator-prey theoretical model based on sheared flow and/or magnetic field has been developed that captures key QSH dynamics. Upgraded pellet injection permits study of density and limits over MST's full range of operation, and an MST-record line-average density of 0 : 9 ? 10 20 { m 3 ( n { n G ? 1 : 4 ) has been obtained. Plasma exhibits saturation at tot § 20% for a wide range of density, 0 : 2 + n { n G + 1 : 6 . Gyrokinetic simulations (GENE) based on experimental toroidal equilibrium reconstructions predict unstable trapped electron modes. Nonlinear simulations show that the \"Dimits shift\" is large and persists at finite . Experimentally, small-scale density fluctuations are detected in improved confine- ment plasmas. Impurity ion temperature measurements reveal a charge-to-mass-ratio dependence in the rapid heating that occurs during a sawtooth crash. Also, a toroidal asymmetry in the ion temper- ature is measured, correlated with 3D magnetic structure associated with tearing modes. Magnetic self-organization studies include measurements and modeling of the dynamo emf in standard RFP operation as well as with an applied ac inductive electric field to investigate the dynamics of oscillating field current drive (OFCD). Extended MHD computation for standard RFP conditions using NIMROD predicts dynamical coupling of current and plasma flow relaxation. The dynamo emf has also been measured when OFCD is applied, strengthening the understanding of and possibility for steady-state current sustainment using inductive current drive. (literal)
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