Journal ArticleDOI
Stationary H-Mode Discharges with Internal Transport Barrier on ASDEX Upgrade
O. Gruber,R. C. Wolf,R. Dux,Ch. Fuchs,Sibylle Günter,A. Kallenbach,K. Lackner,M. Maraschek,Patrick J. McCarthy,H. Meister,G. Pereverzev,F. Ryter,J. Schweinzer,U. Seidel,S. Sesnic,A. Stäbler,J. Stober +16 more
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In this article, the authors obtained stationary discharges with $H$-mode edge and internal transport barrier for energy, momentum, and particle transport on ASDEX Upgrade, at a line averaged density of $4\ifmmode\times\else\texttimes\fi{}{10}^{19}{\mathrm{m}}^{\ensuremath{-}3}Abstract:
Stationary discharges with $H$-mode edge and internal transport barrier for energy, momentum, and particle transport have been obtained on ASDEX Upgrade. At a line averaged density of $4\ifmmode\times\else\texttimes\fi{}{10}^{19}{\mathrm{m}}^{\ensuremath{-}3}$ an $H$ factor of ${H}_{\mathrm{ITER}89\ensuremath{-}P}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2.4$ and ${\ensuremath{\beta}}_{N}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}2$ could be maintained for 6 s corresponding to 40 confinement times, limited only by the possible discharge duration. The $q$ profile is flat in the center and close to 1. Current diffusion calculations suggest that reconnection is required to clamp the safety factor at 1, which in the absence of sawteeth is explained by the strong fishbone activity.read more
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Chapter 3: MHD stability, operational limits and disruptions
T. C. Hender,J.C. Wesley,J.M. Bialek,Anders Bondeson,Allen H. Boozer,R.J. Buttery,Am Garofalo,Timothy Goodman,Robert Granetz,Y. Gribov,O. Gruber,Mikhail Gryaznevich,G. Giruzzi,Sibylle Günter,Nobuhiko Hayashi,Per Helander,Chris Hegna,D. F. Howell,D.A. Humphreys,G. T. A. Huysmans,A.W. Hyatt,Akihiko Isayama,Stephen Jardin,Yasunori Kawano,A. Kellman,C.E. Kessel,H. R. Koslowski,R. J. La Haye,E. Lazzaro,Yueqiang Liu,V.E. Lukash,J. Manickam,S. Medvedev,V. Mertens,S. V. Mirnov,Y. Nakamura,G.A. Navratil,M. Okabayashi,Takahisa Ozeki,Roberto Paccagnella,G. Pautasso,F. Porcelli,V. D. Pustovitov,V. Riccardo,M. Sato,Olivier Sauter,M.J. Schaffer,Michiya Shimada,Piergiorgio Sonato,E. J. Strait,M. Sugihara,Manabu Takechi,A. D. Turnbull,E. Westerhof,D.G. Whyte,R. Yoshino,H. Zohm +56 more
TL;DR: A review of recent advances in the area of MHD stability and disruptions, since the publication of the 1999 ITER Physics Basis document (1999 Nucl. Fusion 39 2137-2664), is reviewed in this paper.
Journal ArticleDOI
Chapter 2: Plasma confinement and transport
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TL;DR: The understanding and predictive capability of transport physics and plasma confinement is reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER tokamak, for both core and edge plasma regions.
Journal ArticleDOI
A review of internal transport barrier physics for steady-state operation of tokamaks
J. W. Connor,T. Fukuda,Xavier Garbet,C. Gormezano,V. S. Mukhovatov,Masahiro Wakatani,Internal Barrier Physics +6 more
TL;DR: In this paper, the current state of theoretical and experimental knowledge regarding the formation and characteristics of internal transport barriers (ITBs) in tokamaks is reviewed and the experimental situation regarding the steady-state, or at least quasi-steady state, operation of tokak discharges is reviewed.
Journal ArticleDOI
Internal transport barriers in tokamak plasmas
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Journal ArticleDOI
Major minority: energetic particles in fusion plasmas
Boris Breizman,S. E. Sharapov +1 more
TL;DR: A review of advances in the field of energetic particle physics can be found in this article, where the authors describe advances made since the topical review of Alfven eigenmode observations in toroidal plasmas (Wong 1999 Plasma Phys. Control. Fusion 41 R1-R56).