T
Takahisa Ozeki
Researcher at Japan Atomic Energy Agency
Publications - 57
Citations - 2348
Takahisa Ozeki is an academic researcher from Japan Atomic Energy Agency. The author has contributed to research in topics: Tokamak & Bootstrap current. The author has an hindex of 19, co-authored 57 publications receiving 2159 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
Compact DEMO, SlimCS: design progress and issues
Kenji Tobita,S. Nishio,Mikio Enoeda,Hisato Kawashima,G. Kurita,Hiroyasu Tanigawa,Hideo Nakamura,Mitsuru Honda,A. Saito,Satoshi Sato,Takumi Hayashi,Nobuyuki Asakura,S. Sakurai,Takeo Nishitani,Takahisa Ozeki,M. Ando,Koichiro Ezato,Kiyotaka Hamamatsu,Takanori Hirose,Tsuyoshi Hoshino,Shunsuke Ide,Takashi Inoue,Takaaki Isono,C. Liu,Satoshi Kakudate,Yoshinori Kawamura,Mori Seiji,Masaru Nakamichi,Hiroshi Nishi,Takashi Nozawa,Kentaro Ochiai,H. Ogiwara,Naoyuki Oyama,Keishi Sakamoto,Yoshiteru Sakamoto,Yohji Seki,Yusuke Shibama,Katsuhiro Shimizu,Sadaaki Suzuki,Koji Takahashi,Daigo Tsuru,Toshihiko Yamanishi,T. Yoshida +42 more
TL;DR: In this article, the design progress in a compact low aspect ratio (low A) DEMO reactor, "SlimCS", and its design issues are reported The design study focused mainly on the torus configuration including the blanket, divertor, materials and maintenance scheme.
Journal ArticleDOI
Identification of a low plasma-rotation threshold for stabilization of the resistive-wall mode.
Manabu Takechi,Go Matsunaga,Nobuyuki Aiba,T. Fujita,Takahisa Ozeki,Yoshihiko Koide,Y. Sakamoto,G. Kurita,Akihiko Isayama,Yutaka Kamada +9 more
TL;DR: Control of the toroidal plasma rotation with external momentum input by injection of tangential neutral beams indicates that for large plasmas such as in future fusion reactors with low rotation, the requirement of the additional feedback control system for stabilizing RWM is much reduced.
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Simulation of the hybrid and steady state advanced operating modes in ITER
C.E. Kessel,G. Giruzzi,A. C. C. Sips,R.V. Budny,Jean-Francois Artaud,V. Basiuk,F. Imbeaux,E. Joffrin,M. Schneider,M. Murakami,T.C. Luce,Holger St. John,T. Oikawa,Nobuhiko Hayashi,Tomonori Takizuka,Takahisa Ozeki,Y.-S. Na,Jin Myung Park,J. Garcia,A.A. Tucillo +19 more
TL;DR: In this paper, integrated simulations are performed to establish a physics basis, in conjunction with present tokamak experiments, for the operating modes in the International Thermonuclear Experimental Reactor (ITER).
Journal ArticleDOI
Neoclassical tearing mode control using electron cyclotron current drive and magnetic island evolution in JT-60U
Akihiko Isayama,Go Matsunaga,Takayuki Kobayashi,Shinichi Moriyama,Naoyuki Oyama,Yoshiteru Sakamoto,T. Suzuki,Hajime Urano,Nobuhiko Hayashi,Yutaka Kamada,Takahisa Ozeki,Y. Hirano,L. Urso,H. Zohm,M. Maraschek,J. Hobirk,Kazunobu Nagasaki,Jt Team +17 more
TL;DR: The results of stabilizing neoclassical tearing modes (NTMs) with electron cyclotron current drive (ECCD) in JT-60U were described with emphasis on the effectiveness of the stabilization.