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Journal Articles

ITER magnet systems; From qualification to full scale construction

Nakajima, Hideo; Hemmi, Tsutomu; Iguchi, Masahide; Nabara, Yoshihiro; Matsui, Kunihiro; Chida, Yutaka; Kajitani, Hideki; Takano, Katsutoshi; Isono, Takaaki; Koizumi, Norikiyo; et al.

Proceedings of 24th IAEA Fusion Energy Conference (FEC 2012) (CD-ROM), 8 Pages, 2013/03

The ITER organization and 6 Domestic Agencies (DA) have been implementing the construction of ITER superconducting magnet systems. Four DAs have already started full scale construction of Toroidal Field (TF) coil conductors. The qualification of the radial plate manufacture has been completed, and JA and EU are ready for full scale construction. JA has qualified full manufacturing processes of the winding pack with a 1/3 prototype and made 2 full scale mock-ups of the basic segments of TF coil structure to optimize and industrialize the manufacturing process. Preparation and qualification of the full scale construction of the TF coil winding is underway by EU. Procurement of the manufacturing equipment is near completion and qualification of manufacturing processes has already started. The constructions of other components of the ITER magnet systems are also going well towards the main goal of the first plasma in 2020.

Journal Articles

Hydraulic characteristics of ITER TF insert coil; Electromagnetic force effect on hydraulic performance

Hamada, Kazuya; Kawano, Katsumi; Matsui, Kunihiro; Kato, Takashi; Sugimoto, Makoto; Hara, Eiji*; Okuno, Kiyoshi; Egorov, S. A.*; Rodin, I.*; Sytnikov, V. E.*; et al.

Teion Kogaku, 37(10), p.531 - 538, 2002/10

In the Engineering Design Activities of the International Thermonuclear Experimental Reactor (ITER), Toroidal Field (TF) Insert have been developed and tested successfully. In the experiment, pressure drop performance of TF insert was investigated. There were two purposes for the investigation. One is to verify the pressure drop prediction using correlations proposed by various researchers. Second is to observe a behavior of pressure drop under the electromagnetic force. The pressure drops of TF insert decreased by around 12% during current-carrying operation of 46kA at 13T. After several current-carrying operation, the friction factor of TF insert has finally reached a value which is around 12% lower than that of virgin state and was not recovered even if there were zero current. It is considered that a deformation of cable cross section inside the conductor jacket appears due to electromagnetic force and a new flow path in the jacket is generated.

Journal Articles

Distribution of the Gamow-Teller strength in $$^{90}$$Nb and $$^{208}$$Bi

Krasznahorkay, A.*; Akimune, Hidetoshi*; Fujiwara, Mamoru; Harakeh, M. N.*; J$"a$necke, J.*; Rodin, V. A.*; Urin, M. H.*; Yosoi, Masaru*

Physical Review C, 64(6), p.067302_1 - 067302_4, 2001/12

 Times Cited Count:33 Percentile:84.48(Physics, Nuclear)

no abstracts in English

Journal Articles

Structure of the 11/2$$^{-}$$ analog state in $$^{91}$$Nb populated by the $$^{90}$$Zr($$alpha$$, t) reaction

Van der Molen, H. K. T.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Daito, Izuru*; Fujimura, Hisako*; Fujita, Yoshitaka*; Fujiwara, Mamoru; Harakeh, M. N.*; Ihara, F.*; Inomata, Toru*; et al.

Physics Letters B, 502(1-4), p.1 - 8, 2001/03

 Times Cited Count:3 Percentile:28.27(Astronomy & Astrophysics)

no abstracts in English

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