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Akademický článek

Observation of avalanche-like transport in Heliotron J and JT-60U plasmas

Autor: F. Kin, S. Inagaki, K. Nagasaki, M. Luo, K. Itoh, K. Shinohara, A. Terakado, T. Minami, S. Kado, S. Kobayashi, S. Ohshima, T. Bando, N. Oyama, M. Yoshida

Publikováno v: Nuclear Fusion, Vol 64, Iss 6, p 066023 (2024)

The avalanche type of transport can induce a long-radial transport and thus can contribute to the global profile formation. In this study, we observed the heat perturbations exhibiting avalanche-like transport in the stellarator/heliotron device, Hel

Externí odkaz: https://doaj.org/article/0d181d07eedc4a6596a71c4deaf526b3

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Akademický článek

Enhanced plasma performance in C-2W advanced beam-driven field-reversed configuration experiments

Autor: H. Gota, A. Smirnov, M.W. Binderbauer, T. Tajima, S. Putvinski, J.B. Titus, M. Nations, T. Roche, E. Trask, T. DeHaas, S.A. Dettrick, E.M. Granstedt, D.K. Gupta, S. Gupta, A.A. Ivanov, S. Korepanov, R.M. Magee, T. Matsumoto, J.A. Romero, P. Yushmanov, K. Zhai, L. Schmitz, Z. Lin, S. Krasheninnikov, E.A. Baltz, J.C. Platt, E.V. Belova, T. Asai, A.I. Smolyakov, S. Abdollahi, S. Abramov, A. Alexander, I. Allfrey, R. Andow, D.C. Barnes, B. Barnett, J. Barrett, M. Beall, N.G. Bolte, E. Bomgardner, A. Bondarenko, F. Brighenti, J. Buttery, S. Caton, F. Ceccherini, Y. Choi, R. Clary, A. Cooper, C. Deng, A. de Vera, J. Drobny, A. Dunaevsky, C. Exton, A. Fareed, P. Feng, C. Finucane, D. Fluegge, A. Fontanilla, Y. Fujiwara, L. Galeotti, S. Galkin, R. Groenewald, T. Hsyu, K. Hubbard, R. Jaber, L. Jian, N. Kafle, S. Kamio, S. Karbashewski, J.S. Kinley, A. Korepanov, G. Koumarianou, S. Krause, P. Kudrin, C.K. Lau, H. Leinweber, J. Leuenberger, D. Lieurance, M. Litton, R. Luna, R. Luong, J. MacFarlane, D. Madura, J. Margo, D. Marshall, V. Matvienko, M. Meekins, W. Melian, R. Mendoza, R. Michel, M. Morehouse, Y. Musthafa, S. Nazarenko, A. Necas, B.S. Nicks, N. Nwoke, S. Ohshima, M. Onofri, R. Page, J. Park, E. Parke, S. Patel, L. Pennings, K. Phung, G. Player, L. Rios, I. Sato, J.H. Schroeder, Y. Shimabukuro, M. Showers, A. Sibley, M. Signorelli, M. Slepchenkov, R.J. Smith, G. Snitchler, V. Sokolov, D. Solyakov, Y. Song, B. Sporer, L.C. Steinhauer, C. Stonier, A. Stratta, J. Sweeney, M. Tobin, M. Tuszewski, J. Ufnal, T. Valentine, S. Vargas, A.D. Van Drie, V. Vekselman, A. Veksler, C. Weixel, C. White, M. Wollenberg, J. Wood, Y. Zhou, S. Ziaei, the TAE Team

Publikováno v: Nuclear Fusion, Vol 64, Iss 11, p 112014 (2024)

TAE Technologies’ fifth-generation fusion device, C-2W (also called ‘Norman’), is the world’s largest compact-toroid device and has made significant progress in field-reversed configuration (FRC) plasma performance. C-2W produces record break

Externí odkaz: https://doaj.org/article/256b81cac41043c1a97676b160e67300

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Akademický článek

Three-dimensional dynamics of fluctuations appearing during pellet ablation process around a pellet in a fusion plasma experiment

Publikováno v: Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)

Abstract Understanding pellet ablation physics is crucial to realizing efficient fueling into a high temperature plasma for the steady state operation of ITER and future fusion reactors. Here we report the first observation of the formation of fluctu

Externí odkaz: https://doaj.org/article/712bc6df046d410c853512ccfb72aa93

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Akademický článek

Effects of the resonance modification by electron cyclotron current drive on the linear and nonlinear dynamics of energetic particle driven magnetohydrodynamics modes in Heliotron J

Autor: P. Adulsiriswad, Y. Todo, S. Yamamoto, S. Kado, S. Kobayashi, S. Ohshima, H. Okada, T. Minami, Y. Nakamura, A. Ishizawa, S. Konoshima, T. Mizuuchi, K. Nagasaki

Publikováno v: Nuclear Fusion, Vol 64, Iss 1, p 016036 (2023)

This study investigates the effects of electron cyclotron current drive (ECCD) on the linear and nonlinear dynamics of energetic-particle (EP)-driven magnetohydrodynamics (MHD) instability (mode) in Heliotron J (HJ), using MEGA, a nonlinear hybrid EP

Externí odkaz: https://doaj.org/article/48d2b1fd5d6f491d917cf052f428bf4b

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Akademický článek

Estimation of three-dimensional structure on peripheral fluctuation using fast camera images and magnetic field calculation in Heliotron J

Autor: N. Nishino, T. Mizuuchi, H. Okada, S. Ohshima, S. Kobayashi, T. Minami, S. Kado, S. Yamamoto, K. Nagasaki, H. Kawazome

Publikováno v: Nuclear Materials and Energy, Vol 20, Iss , Pp - (2019)

In Heliotron J, peripheral plasma fluctuation and/or turbulence have been measured by using a fast camera for over 10 years. Many image data are provided as two-dimensional information of time series by a fast camera, and they represent the spatial s

Externí odkaz: https://doaj.org/article/470b85e182964c99a4de7a3905641c6c

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