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Journal Articles

Design and operating experience of CECE D$$_{2}$$O upgrader in Fugen

Kiyota, Shiko; Kitabata, Takuya; Ninomiya, Ryuji*; Senrui, Shiro*; Isomura, Shohei*

Proceedings of International Conference on Global Environment and Advanced Nuclear Power Plants (GENES4/ANP 2003) (Internet), 7 Pages, 2003/00

no abstracts in English

Journal Articles

Fusion plasma performance and confinement studies on JT-60 and JT-60U

Kamada, Yutaka; Fujita, Takaaki; Ishida, Shinichi; Kikuchi, Mitsuru; Ide, Shunsuke; Takizuka, Tomonori; Shirai, Hiroshi; Koide, Yoshihiko; Fukuda, Takeshi; Hosogane, Nobuyuki; et al.

Fusion Science and Technology (JT-60 Special Issue), 42(2-3), p.185 - 254, 2002/09

 Times Cited Count:33 Percentile:48.48(Nuclear Science & Technology)

With the main aim of providing physics basis for ITER and the steady-state tokamak reactors, JT-60/JT-60U has been developing and optimizing the operational concepts, and extending the discharge regimes toward sustainment of high integrated performance in the reactor relevant parameter regime. In addition to achievement of the equivalent break-even condition (QDTeq up to 1.25) and a high fusion triple product = 1.5E21 m-3skeV, JT-60U has demonstrated the integrated performance of high confinement, high beta-N, full non-inductive current drive with a large fraction of bootstrap current in the reversed magnetic shear and in the high-beta-p ELMy H mode plasmas characterized by both internal and edge transport barriers. The key factors in optimizing these plasmas are profile and shape controls. As represented by discovery of various Internal Transport Barriers, JT-60/JT-60U has been emphasizing freedom and restriction of profiles in various confinement modes. JT-60U has demonstrated applicability of these high confinement modes to ITER and also clarified remaining issues.

Journal Articles

Results of ITER physics R&D, 8; Future prospect

Ninomiya, Hiromasa; Wakatani, Masahiro*; Tamano, T.*; Yoshino, Ryuji

Purazuma, Kaku Yugo Gakkai-Shi, 76(2), p.163 - 164, 2000/02

no abstracts in English

Journal Articles

Steady state high performance in JT-60U

Kamada, Yutaka; Ushigusa, Kenkichi; Neyatani, Yuzuru; Naito, Osamu; Ozeki, Takahisa; Kawano, Yasunori; Yoshino, Ryuji; Kubo, Hirotaka; Fujita, Takaaki; Ishida, Shinichi; et al.

IAEA-CN-60/A5-5, 0, p.651 - 661, 1995/00

no abstracts in English

Journal Articles

Non-inductively current driven H mode with high-$$beta$$$$_{N}$$ and high-$$beta$$$$_{P}$$ values in JT-60U

Kamada, Yutaka; Ushigusa, Kenkichi; Naito, Osamu; Neyatani, Yuzuru; Ozeki, Takahisa; Tobita, Kenji; Ishida, Shinichi; Yoshino, Ryuji; Kikuchi, Mitsuru; Mori, Masahiro; et al.

Nuclear Fusion, 34(12), p.1605 - 1618, 1994/00

 Times Cited Count:47 Percentile:79.78(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:69.8(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Estimation of the JT-60U vessel current by a magnetic fitting code

Matsukawa, Makoto; Ushigusa, Kenkichi; Neyatani, Yuzuru; Yoshino, Ryuji; Ninomiya, Hiromasa

Fusion Engineering and Design, 23, p.341 - 349, 1993/00

 Times Cited Count:3 Percentile:35.85(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Softening of Current quenches in JT-60U

Yoshino, Ryuji; Neyatani, Yuzuru; Hosogane, Nobuyuki; S.W.Wolfe*; Matsukawa, Makoto; Ninomiya, Hiromasa

Nuclear Fusion, 33(11), p.1599 - 1612, 1993/00

 Times Cited Count:33 Percentile:71.6(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Plasma feedback control system design and the results of JT-60U

Matsukawa, Makoto; Ninomiya, Hiromasa; Horiike, Hiroshi; Hosogane, Nobuyuki; Yoshino, Ryuji

Fusion Technology, 21(3), p.1624 - 1629, 1992/05

no abstracts in English

Journal Articles

Control of impurity and hydrogen-deuterium dilution by wall conditioning in JT-60U

Shimada, Michiya; Sakasai, Akira; Yoshino, Ryuji; Kamada, Yutaka; Kubo, Hirotaka; Sugie, Tatsuo; Tsuji, Shunji; Nakamura, Hiroo; Nemoto, Masahiro; Koide, Yoshihiko; et al.

Journal of Nuclear Materials, 196-198, p.164 - 167, 1992/00

 Times Cited Count:11 Percentile:70.42(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

JT-60 operation results after its modification for higher plasma current with single null open divertor

; Horiike, Hiroshi; Neyatani, Yuzuru; Matsukawa, Makoto; Ando, Toshiro; Yoshino, Ryuji; Arai, Takashi; Ninomiya, Hiromasa; Yamamoto, Masahiro; ; et al.

Proc. of the 14th Symp. on Fusion Engineering,Vol. 1, p.177 - 180, 1992/00

no abstracts in English

Journal Articles

Physics operations in JT-60

Ninomiya, Hiromasa; Hosogane, Nobuyuki; Yoshino, Ryuji; Ushigusa, Kenkichi; Kamada, Yutaka; Kikuchi, Mitsuru; Kimura, Toyoaki; Kurihara, Kenichi; Tsuji, Shunji; Naito, Osamu; et al.

Kaku Yugo Kenkyu, 65(SPECIAL ISSUE), p.13 - 26, 1991/03

no abstracts in English

Journal Articles

Density control for getting stable discharges in JT-60 graphite wall experiment

Yoshino, Ryuji; Neyatani, Yuzuru; Ninomiya, Hiromasa; Hosogane, Nobuyuki; Nakamura, Hiroo; Arai, Takashi; Itami, Kiyoshi; *; Sato, Masayasu; Fukuda, Takeshi; et al.

Journal of Nuclear Materials, 162-164, p.527 - 532, 1989/00

 Times Cited Count:3 Percentile:41.87(Materials Science, Multidisciplinary)

no abstracts in English

JAEA Reports

Energy confinement study in JT-60 initial heating experiment

Hosogane, Nobuyuki; Akiba, Masato; Kuriyama, Masaaki; Miya, Naoyuki; Ushigusa, Kenkichi; Yoshino, Ryuji; Ninomiya, Hiromasa

JAERI-M 88-095, 19 Pages, 1988/05

JAERI-M-88-095.pdf:0.45MB

no abstracts in English

Journal Articles

Large m=3/n=1 locked mode its stabilization

Ninomiya, Hiromasa; Itami, Kiyoshi; Neyatani, Yuzuru; Naito, Osamu; Yoshino, Ryuji

Nuclear Fusion, 28(7), p.1275 - 1281, 1988/00

 Times Cited Count:16 Percentile:54.25(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

The JT-60 central control system

; Kimura, Toyoaki; Yonekawa, Izuru; Kurihara, Kenichi; ; ; Hosogane, Nobuyuki; Yoshino, Ryuji; Ninomiya, Hiromasa; Kawamata, Yoichi; et al.

Fusion Engineering and Design, 5, p.69 - 84, 1987/00

 Times Cited Count:9 Percentile:66.68(Nuclear Science & Technology)

no abstracts in English

Oral presentation

Muon spin relaxation in PrRu$$_4$$P$$_{12}$$

Higemoto, Wataru; Ito, Takashi; Ninomiya, Kazuhiko*; Higashinaka, Ryuji*; Aoki, Yuji*; Sato, Hideyuki*

no journal, , 

In filled skutterudite structural system PrRu$$_4$$P$$_{12}$$, many studies are paid attention on the electronic state of the Pr ion from several point of view, including multipole state. Recently, it was proposed that the complex state of nucleous spin of Pr and Pr 4f electron is formed and this complex state makes some effect on the properties of the system. We have studies muon spin relaxation experiment to elucidate the magnetic properties of PrRu$$_4$$P$$_{12}$$ down to low temperatures. We will report the detail of the results.

Oral presentation

Muonic X-ray analysis for Ryugu samples

Osawa, Takahito; Ninomiya, Kazuhiko*; Nakamura, Tomoki*; Takahashi, Tadayuki*; Terada, Kentaro*; Yurimoto, Hisayoshi*; Noguchi, Takaaki*; Okazaki, Ryuji*; Yabuta, Hikaru*; Naraoka, Hiroshi*; et al.

no journal, , 

I report on the muonic X-ray analysis experiment conducted at J-PARC from 2020 to 2021, in which the analytical method was significantly developed through four preliminary experiments and successfully analyzed samples from the asteroid Ryugyu in July 2021. The experimental process is described from a radiochemical point of view.

18 (Records 1-18 displayed on this page)
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