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A. D. Turnbull
Researcher at General Atomics
Publications - 79
Citations - 6274
A. D. Turnbull is an academic researcher from General Atomics. The author has contributed to research in topics: Tokamak & DIII-D. The author has an hindex of 34, co-authored 78 publications receiving 5761 citations.
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Journal ArticleDOI
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
Enhanced confinement and stability in DIII-D discharges with reversed magnetic shear.
E. J. Strait,L. L. Lao,Michael E. Mauel,B. W. Rice,T. S. Taylor,Keith H. Burrell,Ming-Sheng Chu,E. A. Lazarus,T.H. Osborne,S. J. Thompson,A. D. Turnbull +10 more
TL;DR: Values of normalized beta, up to 4 ({percent}-{ital m}-T/MA), energy confinement are a factor of 3 better than {ital L} mode, and at least 50% of the noninductive plasma current in this regime demonstrates compatibility with requirements for a steady-state high-beta tokamak power plant.
Journal ArticleDOI
Beta limits in long-pulse tokamak discharges
Olivier Sauter,R. J. LaHaye,Z. Chang,D.A. Gates,Y. Kamada,H. Zohm,Anders Bondeson,D. Boucher,James D. Callen,Ming-Sheng Chu,T. A. Gianakon,O. Gruber,R. W. Harvey,Chris Hegna,L. L. Lao,D. A. Monticello,F. Perkins,A. Pletzer,Allan Reiman,Marshall N. Rosenbluth,E. J. Strait,T. S. Taylor,A. D. Turnbull,Francois Waelbroeck,J. Wesley,H. R. Wilson,R. Yoshino +26 more
TL;DR: In this paper, a quantitative comparison between both the conventional resistive and neoclassical theories, and the experimental results of several machines, which have all observed these low-min nonideal modes.
Journal ArticleDOI
Wall Stabilization of High Beta Tokamak Discharges in DIII-D
E. J. Strait,T. S. Taylor,A. D. Turnbull,J.R. Ferron,L. L. Lao,B. W. Rice,Olivier Sauter,S. J. Thompson,D. Wroblewski +8 more
TL;DR: This poster presents a probabilistic procedure for estimating the intensity of the response of the immune system to laser-spot assisted X-ray diffraction during the treatment of central nervous system injuries.
Journal ArticleDOI
Integrated modeling applications for tokamak experiments with OMFIT
Orso Meneghini,Sterling Smith,L.L. Lao,Olivier Izacard,Qilong Ren,Jin Myung Park,Jeff Candy,Z. X. Wang,C. Luna,V.A. Izzo,Brian Grierson,P. B. Snyder,Christopher Holland,J. Penna,G. Lu,Peter Raum,A.J. McCubbin,D. M. Orlov,Emily Belli,Nathaniel Ferraro,Ron Prater,T.H. Osborne,A. D. Turnbull,G. M. Staebler +23 more
TL;DR: The framework made possible the design and automation of a workflow that enables self-consistent predictions of kinetic profiles and the plasma equilibrium, and it was found that the feedback between the transport fluxes and plasma equilibrium can significantly affect the kinetic profiles predictions.