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Journal Articles

Development of ITER superconducting coil in Japan

Koizumi, Norikiyo; Nunoya, Yoshihiko

FSST News, (143), p.6 - 10, 2014/10

no abstracts in English

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

Neutron shielding and blanket neutronics design

Yamauchi, Michinori*; Nishitani, Takeo; Nishio, Satoshi

Purazuma, Kaku Yugo Gakkai-Shi, 80(11), p.952 - 954, 2004/11

Considering the geometrical characteristics of tokamak reactors with low aspect ratio, a basic neutronics strategy was derived to construct the inboard structure mainly for neutron shielding and produce enough tritium in the outboard blanket. The designs for optimal inboard shield were surveyed and necessary thickness was estimated to make the neutron flux low enough on the super-conducting magnet. In addition, the outer blanket designs were studied to attain the tritium breeding ratio (TBR) large enough for a self-sustaining fusion reactor on the basis of the advanced fusion reactor materials.

Journal Articles

Measurement of high frequency impedance of ITER CS Model Coil and the simulation analysis of internal resonance phenomenon

Matsukawa, Makoto; Miura, Yushi; Shimada, Katsuhiro; Terakado, Tsunehisa; Okano, Jun; Isono, Takaaki; Nunoya, Yoshihiko

IEEE Transactions on Applied Superconductivity, 14(2), p.1414 - 1417, 2004/06

 Times Cited Count:5 Percentile:65.71(Engineering, Electrical & Electronic)

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

Development of a 30 m long Nb$$_{3}$$Al superconducting conductor jacketed with a round-in-square type stainless steel conduit for the toroidal field coils in JT-60SC

Tsuchiya, Katsuhiko; Kizu, Kaname; Miura, Yushi; Ando, Toshinari*; Nakajima, Hideo; Matsukawa, Makoto; Sakasai, Akira; Ishida, Shinichi

Fusion Engineering and Design, 70(2), p.131 - 140, 2004/02

 Times Cited Count:3 Percentile:74.69(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Analytical representation for neutron streaming through slits in fusion reactor blanket by Monte Carlo calculation

Sato, Satoshi; Maki, Koichi*

Fusion Engineering and Design, 65(4), p.501 - 524, 2003/07

 Times Cited Count:1 Percentile:88.19(Nuclear Science & Technology)

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

Development of bonding techniques for cryogenic components, 2; HIP bonding between Cu alloys and Ti, cryogenic stainless steels

Saito, Shigeru; Ouchi, Nobuo; Fukaya, Kiyoshi*; Ishiyama, Shintaro; Tsuchiya, Yoshinori; Nakajima, Hideo

JAERI-Tech 2003-027, 63 Pages, 2003/03

JAERI-Tech-2003-027.pdf:19.84MB

Around the super conducting (SC) coils of SC linear accelerator or fusion reactor, several kind of dissimilar materials bond will be needed. In recent years, pure titanium has been proposed as jacket material for SC coil of fusion reactor. Cu-alloys will be used for connection of SC coils. Cryogenic stainless steels have been development for structural material. Therefore, it is necessary to develop new bonding techniques and we started the bonding technology development by hot isostatic press (HIP) method to bond Cu-alloys with titanium and cryogenic stainless steels. In this experiments, optimization of HIP bonding condition and evaluation of bonding strength by metallurgical observation, tensile and bending tests were performed.

JAEA Reports

Deveopment of bonding techniques for cryogenic components, 1; HIP bonding tests between Ti and cryogenic stainless steels

Saito, Shigeru; Ouchi, Nobuo; Ishiyama, Shintaro; Tsuchiya, Yoshinori*; Nakajima, Hideo; Fukaya, Kiyoshi*

JAERI-Tech 2002-048, 68 Pages, 2002/05

JAERI-Tech-2002-048.pdf:7.86MB

no abstracts in English

Journal Articles

Engineering design study of JT-60 superconducting modification

Sakasai, Akira; Ishida, Shinichi; Matsukawa, Makoto; Kurita, Genichi; Akino, Noboru; Ando, Toshinari*; Arai, Takashi; Ichige, Hisashi; Kaminaga, Atsushi; Kato, Takashi; et al.

Proceedings of 19th IEEE/NPSS Symposium on Fusion Engineering (SOFE), p.221 - 225, 2002/00

no abstracts in English

Journal Articles

Neutron diffraction experience at RESA for engineering-aided application

Tsuchiya, Yoshinori; Kikuchi, Kenji; Minakawa, Nobuaki; Morii, Yukio; Kato, Takashi; Nakajima, Hideo; Tsuji, Hiroshi

Journal of the Physical Society of Japan, Vol.70, Supplement A, p.520 - 522, 2001/05

no abstracts in English

Journal Articles

A Design study of the power supply system for superconducting JT-60

Matsukawa, Makoto; Ishida, Shinichi; Sakasai, Akira; Kurita, Genichi; Miura, Yushi; Terakado, Tsunehisa; Omori, Yoshikazu; Omori, Shunzo; Okano, Jun; Shimada, Katsuhiro; et al.

Fusion Technology, 39(2-Part2), p.1106 - 1110, 2001/03

no abstracts in English

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

A Modification plan of the power supply system for the JT-60 using superconducting coils

Matsukawa, Makoto; Sakasai, Akira; Ishida, Shinichi; Miura, Yushi; Hosogane, Nobuyuki

Heisei-12-Nen Denki Gakkai Sangyo Oyo Bumon Taikai Koen Rombunshu (CD-ROM), 1, p.287 - 290, 2000/00

no abstracts in English

Journal Articles

Neutron diffraction measurement of internal residual stress of superconducting coil jacket

Tsuchiya, Yoshinori; Kikuchi, Kenji; Minakawa, Nobuaki; Morii, Yukio; Kato, Takashi; Nakajima, Hideo; Refal, M.*; Saito, Toru*; Tsuji, Hiroshi

Proceedings of 6th International Conference on Residual Stressess (ICRS-6), Vol.1, p.337 - 341, 2000/00

no abstracts in English

Journal Articles

A New PWM pattern generation method for a PWM converter applied to a superconducting magnet

Miura, Yushi; Matsukawa, Makoto; Nakano, Hirotami*

Proceedings of the 18th IEEE/NPSS Symposium on Fusion Engineering (SOFE '99), p.417 - 420, 1999/10

no abstracts in English

Journal Articles

A New Method of switching pulses generation in three-phase PWM current source type convertor

Miura, Yushi; Matsukawa, Makoto; *

Denki Gakkai Rombunshi, D, 119-D(7), p.1022 - 1023, 1999/07

no abstracts in English

Journal Articles

Design and model test of a water-cooled VCB for superconducting magnet power supplies

Matsukawa, Makoto; Miura, Yushi; Kimura, Toyoaki; *; *; Kawashima, Shuichi*

Fusion Technology, 34(3), p.684 - 688, 1998/11

no abstracts in English

JAEA Reports

Development of an intense positron source(II); An adaptive estimate of a superconducting Magnet for a positron focusing device

; *; *; *; ; *; *

PNC-TN9410 98-053, 43 Pages, 1998/04

PNC-TN9410-98-053.pdf:3.62MB

In the Power Reactor and Nuclear Fuel Development Corporation (PNC), the following are examined as part of an application technology using a high power electron linac : monochromatic gamma ray sources, free electron lasers, and intense positron sources. This report describes an adaptive estimate of a superconducting magnet in order to efficiently converge a positron beam for the development of an intense positron source. By comparing the intensity of a positron beam using a superconducting magnet with a normal conducting magnet, the intensity obtained was more than double. In addition, a small magnet was manufactured in order to examine the characteristics of the superconducting magnet as a solenoid coil. An excitement test was carried out with rated current. As a result of measuring the maximum magnetic field on the central axis, we achieved 5.6 Tesla, which was the designed value. Therefore, it was confirmed to function as a focusing device, when the superconducting magnet was used to converge the positron beam.

28 (Records 1-20 displayed on this page)