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Journal Articles

Evaluation of bending strain dependence of critical current of Nb$$_{3}$$Al conductor for coils with react-and-wind method

Kizu, Kaname; Tsuchiya, Katsuhiko; Shimada, Katsuhiro; Ando, Toshinari*; Hishinuma, Yoshimitsu*; Koizumi, Norikiyo; Matsukawa, Makoto; Miura, Yushi*; Nishimura, Arata*; Okuno, Kiyoshi; et al.

Fusion Engineering and Design, 82(5-14), p.1493 - 1499, 2007/10

 Times Cited Count:3 Percentile:26.87(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Effects of tensile and compressive strain on critical currents of Nb$$_{3}$$Al strand and cable-in-conduit conductor

Kizu, Kaname; Tsuchiya, Katsuhiko; Shimada, Katsuhiro; Ando, Toshinari*; Hishinuma, Yoshimitsu*; Koizumi, Norikiyo; Matsukawa, Makoto; Miura, Yushi*; Nishimura, Arata*; Okuno, Kiyoshi; et al.

IEEE Transactions on Applied Superconductivity, 16(2), p.872 - 875, 2006/06

 Times Cited Count:1 Percentile:12.39(Engineering, Electrical & Electronic)

no abstracts in English

Journal Articles

Irradiation effect of 14 MeV neutron on interlaminar shear strength of glass fiber reinforced plastics

Nishimura, Arata*; Hishinuma, Yoshimitsu*; Seo, Kazutaka*; Tanaka, Teruya*; Muroga, Takeo*; Nishijima, Shigehiro*; Katagiri, Kazumune*; Takeuchi, Takao*; Shindo, Yasuhide*; Ochiai, Kentaro; et al.

AIP Conference Proceedings 824, p.241 - 248, 2005/09

Design activity of International Thermonuclear Experimental Reactor clarifies intense neutron streaming from ports for neutral beam injectors. Energy spectrum of the streaming is very wide and 14 MeV neutron and $$gamma$$ ray are the typical radiations. Large amount of glass fiber reinforced plastics will be used in a superconducting magnet system as an electric insulation material and a support structure, for such organic material is easy to manufacture, and light and cheap. In this report, effects of 14 MeV neutron and $$gamma$$ ray irradiation on interlaminar shear strength and fracture mode are investigated using G-10CR small specimen of which configuration was proposed as a standard for evaluation of the interlaminar shear strength.

Oral presentation

Effects of tensile and compressive strain on critical currents of Nb$$_{3}$$Al strand and cable-in-conduit conductor

Kizu, Kaname; Ando, Toshinari*; Okuno, Kiyoshi; Koizumi, Norikiyo; Shimada, Katsuhiro; Seo, Kazutaka*; Takahata, Kazuya*; Tamai, Hiroshi; Tsuchiya, Katsuhiko; Nishimura, Arata*; et al.

no journal, , 

no abstracts in English

Oral presentation

Dependence of strain on critical current density in a Nb$$_{3}$$Al CIC conductor measured with spring method

Kizu, Kaname; Ando, Toshinari*; Tsuchiya, Katsuhiko; Shimada, Katsuhiro; Matsukawa, Makoto; Tamai, Hiroshi; Koizumi, Norikiyo; Okuno, Kiyoshi; Nishimura, Arata*; Hishinuma, Yoshimitsu*; et al.

no journal, , 

no abstracts in English

Oral presentation

Irradiation effect of D-T neutron on superconducting magnet materials for fusion

Nishimura, Arata*; Hishinuma, Yoshimitsu*; Seo, Kazutaka*; Tanaka, Teruya*; Muroga, Takeo*; Nishijima, Shigehiro*; Katagiri, Kazumune*; Takeuchi, Takao*; Shindo, Yasuhide*; Ochiai, Kentaro; et al.

no journal, , 

A fusion device which creates burning plasma will be equipped with a superconducting magnet system to provide strong magnetic field and maintain the burning plasma. The fusion device also will have plasma heating devices such as neutral beam injectors and electron cyclotron systems. Since these systems need several ports to carry in the energy into plasma, the fusion device has large ports connecting to the systems locates in outside of cryostat. Through these ports, D-T neutron will come out of the burning plasma and damage the surrounding materials. The superconducting magnets also will be irradiated by the streaming neutron. To investigate mechanisms of degradation of superconducting properties, and to construct database of irradiation effect on superconducting magnet materials, a cryogenic target system has been install in Fusion Neutronics Source (FNS) at Japan Atomic Energy Agency (JAEA). The irradiation tests with D-T neutron have been carried out three times and some irradiation effects on superconducting magnet materials are clarified. In this paper, the present status of the cryogenic target system and some irradiation test results will be summarized and presented.

Oral presentation

Dependence of strain on Ic in a Nb$$_{3}$$Al CIC conductor

Kizu, Kaname; Ando, Toshinari*; Tsuchiya, Katsuhiko; Shimada, Katsuhiro; Matsukawa, Makoto; Tamai, Hiroshi; Koizumi, Norikiyo; Okuno, Kiyoshi; Nishimura, Arata*; Hishinuma, Yoshimitsu*; et al.

no journal, , 

no abstracts in English

Oral presentation

Examinations on axial-strain and wave-shaped deformation characteristics of transformed Nb$$_3$$Al strand

Nabara, Yoshihiro; Nunoya, Yoshihiko; Matsui, Kunihiro; Hemmi, Tsutomu; Koizumi, Norikiyo; Isono, Takaaki; Uno, Yasuhiro*; Okui, Yoshio*; Oshikiri, Masayuki; Seo, Kazutaka; et al.

no journal, , 

no abstracts in English

Oral presentation

Progress of procurement of ITER TF conductor and resutls of SULTAN test

Isono, Takaaki; Matsui, Kunihiro; Okui, Yoshio*; Seo, Kazutaka; Koizumi, Norikiyo; Takahashi, Yoshikazu; Okuno, Kiyoshi

no journal, , 

ITER TF conductors will be procured by 6 parties, which are Japan, EU, Korea, Russia, US and China. Japan will procure 25% (4.75 coils) of the TF conductors. 100 tons of Nb$$_{3}$$Sn strands will be procured by JA for the TF conductors and total length of the conductor shall be 22 km. ITER organization and JAEA have signed agreement to procure the TF conductor last November. JAEA separated the procurement into three categories, which are strand, cable and conductor procurements. Before the procurement, JAEA has evaluated performance of 4 kinds of full size conductors, each of which uses Nb$$_{3}$$Sn strands fabricated by respective Japanese company. Test results of 2 kinds of conductors were presented last year. This time, test results of other conductors will be presented.

9 (Records 1-9 displayed on this page)
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