Technology development for the construction of the ITER superconducting magnet system

Okuno, K.; Nakajima, Hideo; Sugimoto, M.; Isono, T.; Kawano, Keiichi; Koizumi, N.; Hamada, K.; Nunoya, Y.; Matsui, K.; Nabara, Y.; Kitamura, K.; Oshikiri, M.; Takano, Katsutoshi; Tsutsumi, F.

doi:10.1088/0029-5515/47/5/010

Cited by 9 publications

(6 citation statements)

References 8 publications

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“…Japan is responsible for the procurement of 25% of the TF conductors, 9 TF coil winding packs, all of the TF structures and all of the CS conductors and then activities to prepare for these procurements have been started since 2005 in Japan Atomic Energy Agency (JAEA) [1].…”

Section: Introductionmentioning

confidence: 99%

Results of R&D on ITER-TF Winding Critical Issues

Koizumi

Nakajima

Matsui

et al. 2008

IEEE Trans. Appl. Supercond.

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New technical issues are initiated in the ITER Toroidal Field (TF) coil manufacturing because of the scale-up by about 3 times from the TF model coil. The major issues are feasibilities of high accuracy, automatic winding, precise prediction of conductor elongation after heat treatment to insert the conductor in narrow groove of a radial plate, and development of insulation system, which can sustain irradiation of a neutron fluence of 10 22 n/m 2 and, in addition, be impregnated in a suitable duration. One of major parts of automatic winding machine, a bending roller head, was developed and trial winding using short sample conductor was successfully carried out. The elongations of the TF conductor after the heat treatment is evaluated to be in 0.03% In addition, results of impregnation test using short samples indicate that it will take about 60 h to impregnate TF coil double-pancake by the method developed in the model coil project. New impregnation technique is under development to shorten the impregnation period.

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Section: Introductionmentioning

confidence: 99%

Results of R&D on ITER-TF Winding Critical Issues

Koizumi

Nakajima

Matsui

et al. 2008

IEEE Trans. Appl. Supercond.

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“…The performance of the Nb-Ti conductor will also be confirmed in a test coil (PF insert coil). For TF coil structures, steel blocks of 20 ton have also been produced as a trial fabrication of the structures [18]. All these results are satisfactory, although further technology development is still required in some areas, including the qualification of conductors.…”

Section: Superconducting Magnetsmentioning

confidence: 96%

“…There has been significant progress in the SC magnets of ITER [17,18]. Procurement sharing has been defined among the participant teams of China, EU, Japan, Korea, Russia and US, as shown in figure 3.…”

Section: Superconducting Magnetsmentioning

confidence: 99%

ITER activities and fusion technology

Seki

2007

Nucl. Fusion

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At the 21st IAEA Fusion Energy Conference, 68 and 67 papers were presented in the categories of ITER activities and fusion technology, respectively. ITER performance prediction, results of technology R&D and the construction preparation provide good confidence in ITER realization. The superconducting tokamak EAST achieved the first plasma just before the conference. The construction of other new experimental machines has also shown steady progress. Future reactor studies stress the importance of down sizing and a steady-state approach. Reactor technology in the field of blanket including the ITER TBM programme and materials for the demonstration power plant showed sound progress in both R&D and design activities.

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“…The Japan Atomic Energy Agency (JAEA), which is a Domestic Agency designated from the Japanese government, is responsible for the procurement of TF coils and structures [1,2]. The TF coil is one of superconducting magnet coils of ITER, which has a D-shape with a height of 16.5 m, a width of 9 m, and a weight of 300 tons as shown in FIGURE 1.…”

Section: Introductionmentioning

confidence: 99%