Refine your search:     
Report No.
 - 
Search Results: Records 1-20 displayed on this page of 32

Presentation/Publication Type

Initialising ...

Refine

Journal/Book Title

Initialising ...

Meeting title

Initialising ...

First Author

Initialising ...

Keyword

Initialising ...

Language

Initialising ...

Publication Year

Initialising ...

Held year of conference

Initialising ...

Save select records

Journal Articles

Review of recent steady-state advanced tokamak research and its further pursuit by reduction of TF ripple on JT-60U

Shinohara, Koji; JT-60 Team

Journal of the Korean Physical Society, 49, p.S56 - S62, 2006/12

The recent results of JT-60, such as the long discharge with the high normalized beta of 2.3 and the pulse length of 22.3 s which was 13 times longer than the current profile relaxation, and the observation of the increase of D$$alpha$$ emission and electron density as results of wall saturation will be reviewed. Additionally, the motivation and the design work will be reviewd on an on-going recent project of the ferritic insertion for the reduction of the toroidal field ripple. The pioneering works of JFT-2M in the ferritic insertion will be also reported.

Journal Articles

Advanced data handling for plasma profile control in JT-60

Yonekawa, Izuru; Sueoka, Michiharu; Hosoyama, Hiroki*; Kawamata, Yoichi; Suzuki, Takahiro; Kurihara, Kenichi

Fusion Engineering and Design, 81(15-17), p.1897 - 1903, 2006/07

 Times Cited Count:2 Percentile:81.25(Nuclear Science & Technology)

Recent years, plasma current profile (j-profile) control has been newly proposed to avoid instabilities in the high normalized-beta plasma. In particular, for the real-time profile feedback control, the control period should be roughly less than several tens of ms, including data communication among relating systems. In order to minimize data transfer time,the profile data being a function of time and position is required to decrease its data size for efficient data handling. A profile data,defined as 3-dimension time series data (q,R,Z,t), was reduced by introducing normalized minor radius rho in place of (R,Z). Data handling for profile control will be presented with their technical issues, together with computing hardware engineering.

Journal Articles

Steady state operation research in JT-60U with extended pulse length

Fujita, Takaaki; JT-60 Team

Nuclear Fusion, 46(3), p.S3 - S12, 2006/03

 Times Cited Count:7 Percentile:72.7(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Overview of the national centralized tokamak programme

Kikuchi, Mitsuru; Tamai, Hiroshi; Matsukawa, Makoto; Fujita, Takaaki; Takase, Yuichi*; Sakurai, Shinji; Kizu, Kaname; Tsuchiya, Katsuhiko; Kurita, Genichi; Morioka, Atsuhiko; et al.

Nuclear Fusion, 46(3), p.S29 - S38, 2006/03

 Times Cited Count:13 Percentile:54.28(Physics, Fluids & Plasmas)

The National Centralized Tokamak (NCT) facility program is a domestic research program for advanced tokamak research to succeed JT-60U incorporating Japanese university accomplishments. The mission of NCT is to establish high beta steady-state operation for DEMO and to contribute to ITER. The machine flexibility and mobility is pursued in aspect ratio and shape controllability, feedback control of resistive wall modes, wide current and pressure profile control capability for the demonstration of the high-b steady state.

Journal Articles

Engineering design and control scenario for steady-state high-beta operation in national centralized tokamak

Tsuchiya, Katsuhiko; Akiba, Masato; Azechi, Hiroshi*; Fujii, Tsuneyuki; Fujita, Takaaki; Fujiwara, Masami*; Hamamatsu, Kiyotaka; Hashizume, Hidetoshi*; Hayashi, Nobuhiko; Horiike, Hiroshi*; et al.

Fusion Engineering and Design, 81(8-14), p.1599 - 1605, 2006/02

 Times Cited Count:1 Percentile:89.16(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Investigation of compatibility of low activation ferritic steel with high performance plasma by full covering of inside vacuum vessel wall on JFT-2M

Tsuzuki, Kazuhiro; Shinohara, Koji; Kamiya, Kensaku; Kawashima, Hisato; Sato, Masayasu; Kurita, Genichi; Bakhtiari, M.; Ogawa, Hiroaki; Hoshino, Katsumichi; Kasai, Satoshi; et al.

Journal of Nuclear Materials, 329-333(1), p.721 - 725, 2004/08

 Times Cited Count:7 Percentile:52.27(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Design optimization study of the JT-60 superconducting coil modification

Matsukawa, Makoto; JT-60SC Design Team

IEEE Transactions on Applied Superconductivity, 14(2), p.1399 - 1404, 2004/06

 Times Cited Count:4 Percentile:70.09(Engineering, Electrical & Electronic)

no abstracts in English

Journal Articles

High-beta steady-state research and future directions on the Japan Atomic Energy Research Institute Tokamak-60 Upgrade and the Japan Atomic Energy Research Institute Fusion Torus-2 Modified

Ishida, Shinichi; JT-60 Team; JFT-2M Group

Physics of Plasmas, 11(5), p.2532 - 2542, 2004/05

 Times Cited Count:21 Percentile:41.31(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Progress in physics and technology developments for the modification of JT-60

Tamai, Hiroshi; Matsukawa, Makoto; Kurita, Genichi; Hayashi, Nobuhiko; Urata, Kazuhiro*; Miura, Yushi; Kizu, Kaname; Tsuchiya, Katsuhiko; Morioka, Atsuhiko; Kudo, Yusuke; et al.

Plasma Science and Technology, 6(1), p.2141 - 2150, 2004/02

 Times Cited Count:2 Percentile:92.85(Physics, Fluids & Plasmas)

The dominant issue for the the modification program of JT-60 (JT-60SC) is to demonstrate the steady state reactor relevant plasma operation. Physics design on plasma parameters, operation scenarios, and the plasma control method are investigated for the achievement of high-$$beta$$. Engineering design and the R&D on the superconducting magnet coils, radiation shield, and vacuum vessel are performed. Recent progress in such physics and technology developments is presented.

Journal Articles

Results and future plan of JT-60U towards steady-state tokamak reactor

Sakurai, Shinji; JT-60 Team

Plasma Science and Technology, 6(1), p.2151 - 2158, 2004/02

 Times Cited Count:0 Percentile:100(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Stabilization effect of early ECCD on a neoclassical tearing mode in the JT-60U tokamak

Nagasaki, Kazunobu*; Isayama, Akihiko; Ide, Shunsuke; JT-60 Team

Nuclear Fusion, 43(10), p.L7 - L10, 2003/10

 Times Cited Count:46 Percentile:18.32(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Objectives and design of the JT-60 superconducting tokamak

Ishida, Shinichi; Abe, Katsunori*; Ando, Akira*; Chujo, T.*; Fujii, Tsuneyuki; Fujita, Takaaki; Goto, Seiichi*; Hanada, Kazuaki*; Hatayama, Akiyoshi*; Hino, Tomoaki*; et al.

Nuclear Fusion, 43(7), p.606 - 613, 2003/07

no abstracts in English

JAEA Reports

Summary report of the 19th IAEA Fusion Energy Conference; October 14-19, 2002, Lyon, France

Department of Fusion Plasma Research Tokamak Program Division

JAERI-Review 2003-012, 41 Pages, 2003/03

JAERI-Review-2003-012.pdf:3.97MB

This report summarizes the contributed papers of the 19th IAEA Fusion Energy Conference held at Lyon, France, from October 14th to 19th, 2002.

JAEA Reports

JAERI contribution to the 19th IAEA Fusion Energy Conference; October 14-19, 2002, Lyon, France

Department of Fusion Plasma Research Tokamak Program Division

JAERI-Review 2003-011, 412 Pages, 2003/03

JAERI-Review-2003-011.pdf:41.6MB

This booklet compiles the contributed papers and presentation materials from JAERI to the 19th IAEA Fusion Energy Conference held at Lyon, France, from October 14th to 19th, 2002. The papers describe the recent progress in the experimental research in JT-60U and JFT-2M tokamaks, theoretical studies, fusion technology and R$$&$$D for ITER and fusion reactors. Total 32 papers consist of 1 overview talk, 14 oral and 17 poster presentations. Eight papers written by authors from other institutes and universities under collaboration with JAERI are also included.

Journal Articles

Increase in beta limit in tokamak plasmas

Kamada, Yutaka

Purazuma, Kaku Yugo Gakkai-Shi, 79(2), p.123 - 135, 2003/02

This paper reviews recent studies on tokamak MHD stability towards achievement of high beta steady-state, where profile control of current, pressure and rotation, and optimization of the plasma shape play fundamental roles. The key instabilities are the neoclassical tearing mode, the resistive wall mode, the edge localized modes etc. Towards demonstration of an economically attractive tokamak reactor, we need to increase the beta value with sufficiently high integrated plasma performance. Towards this goal, studies on stability control in the self-regulating plasma system are essential.

Journal Articles

Plan of JT-60 modificatoin

Ishida, Shinichi; Matsuda, Shinzaburo

Purazuma, Kaku Yugo Gakkai-Shi, 76(6), p.601 - 603, 2000/06

no abstracts in English

Journal Articles

Long sustainment of JT-60U plasmas with high integrated performance

Kamada, Yutaka; Isayama, Akihiko; Oikawa, Toshihiro; Sakamoto, Yoshiteru; Hosogane, Nobuyuki; Takenaga, Hidenobu; Kusama, Yoshinori; Fujita, Takaaki; Takeji, Satoru; Ozeki, Takahisa; et al.

Nuclear Fusion, 39(11Y), p.1845 - 1853, 1999/11

 Times Cited Count:66 Percentile:11.67(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

ELMy H-mode with high $$beta$$$$_{N}$$ and high $$beta$$$$_{p}$$ in JT-60U

Kamada, Yutaka; Ushigusa, Kenkichi; Naito, Osamu; Neyatani, Yuzuru; Ishida, Shinichi; Fujita, Takaaki; Yoshino, Ryuji; Kikuchi, Mitsuru; Mori, Masahiro; Ninomiya, Hiromasa

Plasma Physics and Controlled Fusion, 36, p.A123 - A128, 1994/00

 Times Cited Count:30 Percentile:28.37(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Advanced tokamak program in Japan

Ninomiya, Hiromasa

Tokamak Concept Improvement,ISPP-16, 0, p.305 - 324, 1994/00

no abstracts in English

Journal Articles

Confinement and divertor studies in Japan Tokamak JT-60U

Hosogane, Nobuyuki

Phys. Fluids B, 5(7), p.2412 - 2419, 1993/07

 Times Cited Count:9 Percentile:62.67(Physics, Fluids & Plasmas)

no abstracts in English

32 (Records 1-20 displayed on this page)