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The Second Test Results on the Nb3Sn Demo Poloidal Coil(DPC-EX)

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Advances in Cryogenic Engineering

Part of the book series: Advances in Cryogenic Engineering ((ACRE,volume 39))

Abstract

The second test of the DPC-EX fabricated as one of developments of superconducting poloidal coils for fusion machines, has been carried out. The DPC-EX is a winding inner diameter of 1m, wound with a Nb3Sn cable-in-conduit conductor. In the test, the generation of 7.1 T in 0.5 s was achieved with a high cable space current density of 117 A/mm2. Measurement of ramp rate limitation was carried out and a simple formula was presented for analysis of the results. And it was found that no changes in Tcs and ac losses were appeared before and after 350 pulsed operations. These results show that the reliability of Nb3Sn conductors for large pulse coils was demonstrated.

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References

  1. T. Ando et al., “Experimental results of the Nb3Sn Demo Poloidal Coil (DPC-EX)”, IEEE Trans. Magn., vol. 27: 2060(1991)

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  3. Z. J. J. Stekly and J. L. Zar, “Stable superconducting coils”, IEEE Trans. on Nuclear Science, vol. NS-12: 367(1986)

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  4. T. Ando et al., “Measurement of the stability margin of a Nb3Sn cable-in-conduit conductor”, IEEE Trans. Magn. vol. 25: 2386(1989)

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Author information

Authors and Affiliations

  1. Naka Fusion Research Establishment, Japan Atomic Energy Research Institute, Naka-machi, Naka-gun, Ibaraki, 311-01, Japan

    T. Ando, H. Nakajima, T-Y. Sasaki, T. Hiyama, Y. Takahashi, M. Nishi, K. Yoshida, K. Okuno, T. Kato, M. Sugimoto, T. Isono, K. Kawano, N. Koizumi, K. Hamada, M. Oshikiri, T. Sasaki, Y. Wadayama, A. Miyake, S. Iwamoto, T. Takahashi, H. Ebisu, T. Hosono, K. Yamamoto, Y. Yasukawa, H. Tsukamoto, H. Hanawa, S. Seki, H. Wakabayashi, H. Tsuji, M. Takayasu (Scientific visitor), B. Turck (Scientific visitor) & F. Wuchuner (Scientific visitor)

  2. MIT, USA

    M. Takayasu (Scientific visitor)

  3. CEA, France

    B. Turck (Scientific visitor)

  4. KfK, Germany

    F. Wuchuner (Scientific visitor)

Authors
  1. T. Ando
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  2. H. Nakajima
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  18. A. Miyake
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  19. S. Iwamoto
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  20. T. Takahashi
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  21. H. Ebisu
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  22. T. Hosono
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  23. K. Yamamoto
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  26. H. Hanawa
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  27. S. Seki
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  28. H. Wakabayashi
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  29. H. Tsuji
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  30. M. Takayasu
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  31. B. Turck
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  32. F. Wuchuner
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Editor information

Editors and Affiliations

  1. NASA-Ames Research Center, Moffett Field, California, USA

    Peter Kittel

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© 1994 Springer Science+Business Media New York

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Ando, T. et al. (1994). The Second Test Results on the Nb3Sn Demo Poloidal Coil(DPC-EX). In: Kittel, P. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 39. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-2522-6_39

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  • DOI: https://doi.org/10.1007/978-1-4615-2522-6_39

  • Publisher Name: Springer, Boston, MA

  • Print ISBN: 978-1-4613-6074-2

  • Online ISBN: 978-1-4615-2522-6

  • eBook Packages: Springer Book Archive

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