Results 171 to 180 of about 305,568 (222)

Neoclassical Tearing Physics in the Spherical Tokamak MAST

Physical Review Letters, 2002
Results from MAST provide a first test of neoclassical tearing mode physics in the spherical tokamak (ST). The mode accounts for the main performance limit in conventional tokamaks. Its behavior in the ST is remarkably well described by existing theoretical models, although it is more readily seeded by sawtooth events in these scenarios.
R. J. Buttery, O. Sauter, R. Akers, M. Gryaznevich, R. Martin, C. D. Warrick, H. R. Wilson, null the MAST Team   +7 more
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Investigation of the electrical conductivity of a plasma in a spherical tokamak

Doklady Physics, 2004
A two-dimensional mathematical model is described by the Maxwell equations, balance equations and the Ohm law equation in cylindrical coordinates. An averaging is performed by virtue of integration along a magnetic surface. Penetration of the induced magnetic field into plasma is described by the diffusion equation.
F S Zaitsev, D P Kostomarov
exaly   +3 more sources

Tokamak and Spherical Tokamak Research in Japan

Fusion Science and Technology, 2007
Japanese tokamak and spherical tokamak (ST) research programs are described. Tokamak research will focus on steady state high β (β N = 3.5-5.5) research on JT-60SA (formerly NCT) in support of ITER and DEMO. JT-60SA will also serve as the Satellite Tokamak under the JA-EU Broader Approach framework. ST research has been reorganized as the All-Japan ST
Y Takase, M. Kikuchi, T. Maekawa, M. Matsukawa, M. Nagata, S. Nishio, Y. Ono, K.N. Sato, K. Tobitaa   +8 more
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The START spherical tokamak

Proceedings of 16th International Symposium on Fusion Engineering, 2002
START continues to provide key results on the 'spherical tokamak' concept. This paper outlines the engineering solutions adopted to overcome problems of space restrictions in a very low aspect ratio tokamak, whilst providing high performance at low cost.
A. Sykes, G.W. Crawford, G. Cunningham, N.A. Fawlk, D.H.J. Goodall, M. Gryaznevich, J. Hugill, I. Jenkins, R. Martin, C. Ribeiro, D.C. Robinson, R.T.C. Smith, T.N. Todd, M.J. Walsh, B.J. Ward   +14 more
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The role of the spherical tokamak in clarifying tokamak physics

Plasma Physics and Controlled Fusion, 1999
The spherical tokamak (ST) provides a unique environment in which to perform complementary and exacting tests of the tokamak physics required for a burning plasma experiment of any aspect ratio, while also having the potential for long-term fusion applications in its own right.
A W Morris, R J Akers, J W Connor, G F Counsell, R J Fonck, M P Gryaznevich, V Gusev, T C Hender, S M Kaye, G P Maddison, R Majeski, T J Martin, K G McClements, S Medvedev, Y-K M Peng, C M Roach, D C Robinson, S Sharapov¶, A Sykes, M Valovic, M J Walsh, H R Wilson   +21 more
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The Design of the Center Core of a Spherical Tokamak

Fusion Technology, 1997
Summary form only given. Spherical tokamaks are low-aspect-ratio devices with plasmas that are roughly spherical in shape. To create low-aspect-ratio plasmas, the center column of the tokamak must have as small a diameter as possible. The center column must include conductors to carry the toroidal field current and may also include space for an ohmic ...
R.J. Colchin, P.H. Edmonds, J.D. Galambos, P.L. Goranson, S.P. Hirshman, J.R. Uglum   +5 more
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Development of Next-Generation Spherical Tokamak Concept. The Globus-3 Tokamak

Физика плазмы, 2023
The concept of next-generation spherical tokamak is being considered: the Globus-3 project,which, in its characteristics, is compatible with the infrastructure existing at the Ioffe Institute, but differsfrom the currently operating Globus-M2 tokamak in the stronger toroidal magnetic field (1.5–3.0 T) andincreased duration of plasma discharge.
V. B. Minaev, A. B. Mineev, N. V. Sakharov, Yu. V. Petrov, N. N. Bakharev, E. N. Bondarchuk, A. V. Bondar, V. I. Varfolomeev, A. A. Voronova, V. K. Gusev, V. V. D’yachenko, A. A. Kavin, I. V. Kedrov, A. Yu. Konin, A. M. Kudryavtseva, G. S. Kurskiev, A. N. Labusov, I. V. Miroshnikov, I. Yu. Rodin, V. N. Tanchuk, V. A. Trofimov, O. G. Filatov, P. B. Shchegolev   +22 more
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Bootstrap Current in Spherical Tokamaks

Plasma Science and Technology, 2003
Variational principle for the neoclassical theory has been developed by including a momentum restoring term in the electron-electron collisional operator, which gives an additional free parameter maximizing the heat production rate. All transport coefficients are obtained including the bootstrap current.
Wang Zhongtian, Wang Long
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Progress on spherical tokamaks

Plasma Physics and Controlled Fusion, 1994
The history of low-aspect-ratio 'spherical' tokamak research is described and the advantages claimed for the concept are outlined and compared with experimental results from the START device and elsewhere. Further development of the spherical tokamak, and its potential for a materials test facility or ultimately a fusion plant, are discussed.
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Spherical Tokamak for Material Research

Fusion Technology, 1998
At present spherical tokamaks are assumed to be prospective candidates for construction of thermonuclear reactors.
V.S. Shkolnik, Yu.S. Cherepnin, L.N. Tikhomirov, D.I. Zelenskiy, I.L. Tazhibaeva, V.P. Shestakov, E.P. Velikhov, E.A. Azizov, O.I. Buzhinskiy, A.A. Gostev, G.P. Gardymov, A.B. Mineev, K.G. Shakhovets   +12 more
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