Results 171 to 180 of about 1,577 (223)

Stochastic transport in Spherical Tokamaks

Palermo, F., Casson, F., Koechl, F., Chulu-Chinn, N., McMillan, B., Garzotti, L., Angioni, C. ; https://orcid.org/0000-0003-0270-9630, Roach, C.   +7 more
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Overview of spherical tokamak research in Japan

Nuclear Fusion, 2017
Nationally coordinated research on spherical tokamak is being conducted in Japan. Recent achievements include: (i) plasma current start-up and ramp-up without the use of the central solenoid by RF waves (in electron cyclotron and lower hybrid frequency ranges), (ii) plasma current start-up by AC Ohmic operation and by coaxial helicity injection, (iii ...
Y. Takase, A. Ejiri, T. Fujita, N. Fukumoto, A. Fukuyama, K. Hanada, H. Idei, M. Nagata, Y. Ono, H. Tanaka, M. Uchida, R. Horiuchi, Y. Kamada, H. Kasahara, S. Masuzaki, Y. Nagayama, T. Oishi, K. Saito, Y. Takeiri, S. Tsuji-Iio   +19 more
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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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Prospects for pilot plants based on the tokamak, spherical tokamak and stellarator

Nuclear Fusion, 2011
A potentially attractive next-step towards fusion commercialization is a pilot plant, i.e. a device ultimately capable of small net electricity production in as compact a facility as possible and in a configuration scalable to a full-size power plant. A key capability for a pilot-plant programme is the production of high neutron fluence enabling fusion
J.E. Menard, L. Bromberg, T. Brown, T. Burgess, D. Dix, L. El-Guebaly, T. Gerrity, R.J. Goldston, R.J. Hawryluk, R. Kastner, C. Kessel, S. Malang, J. Minervini, G.H. Neilson, C.L. Neumeyer, S. Prager, M. Sawan, J. Sheffield, A. Sternlieb, L. Waganer, D. Whyte, M. Zarnstorff   +21 more
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Central Solenoid for Spherical Tokamak Globus-M

Fusion Technology, 1998
The central solenoid is a critical component of the spherical tokamak Globus-M (plasma major radius R = 0.36 m, plasma minor radius a = 0.24 m, aspect ratio R/a = 1.5, toroidal magnetic field BT ≤ 0.62 T, plasma current Ip ≤ 0.5 MA). The two-layer solenoid, 1312 mm long with a 200-mm outer diameter, is located between the 112-mm-diam inner rod of the ...
Gusev, V., Heikkinen, Jukka, Helenius, A., Kivivuori, S., Korotkov, V., Panin, A., Sakharov, N., Shpeitman, V., Soikin, V., Somerkoski, J.   +9 more
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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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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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