New 25 T Cryogen-Free Superconducting Magnet Project at Tohoku University

Satoshi Awaji; Kazuo Watanabe; Hidetoshi Oguro; Satoshi Hanai; Hiroshi Miyazaki; Masahico Takahashi; Shigeru Ioka; Masahiro Sugimoto; Hirokazu Tsubouchi; Shinji Fujita; Masanori Daibo; Yasuhiro Iijima; Hiroaki Kumakura

doi:10.1109/TASC.2013.2292367

New 25 T Cryogen-Free Superconducting Magnet Project at Tohoku University

Satoshi Awaji, Kazuo Watanabe, Hidetoshi Oguro, Satoshi Hanai, Hiroshi Miyazaki, Masahico Takahashi, Shigeru Ioka, Masahiro Sugimoto, Hirokazu Tsubouchi, Shinji Fujita, Masanori Daibo, Yasuhiro Iijima, Hiroaki Kumakura

High Field Laboratory for Superconducting Materials

Research output: Contribution to journal › Article › peer-review

52 Citations (Scopus)

Abstract

The new high magnetic field research laboratory network is recognized as one of the Japanese Master Plans of Large Research Project by the Science Council of Japan. Recently, the project of the 25 T cryogen-free superconducting magnet (25 T-CSM), which is operated under a conductive cooling condition by cryocooler, was approved under the high magnetic field research laboratory network. We adopted a high strength CuNb/Nb₃Sn Rutherford cable with a prebending treatment for the middle section coils of the 25 T-CSM. The central magnetic field of 14 T is generated by the operational current of 851 A by the Nb₃Sn middle section and NbTi outer section coils in a 300 mm bore. The induced maximum hoop stress in the CuNb/Nb₃Sn section is about 250 MPa. In addition, the 11.5 T high temperature superconducting insert coil is also designed using Gd123 tapes. Therefore, a total central magnetic field of 25.5 T can be achieved.

Original language	English
Article number	4302005
Journal	IEEE Transactions on Applied Superconductivity
Volume	24
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2013.2292367
Publication status	Published - 2014 Jun

Keywords

Coated conductor
cryogen-free superconducting magnet
high magnetic field
high strength NbSn Rutherford cable

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2013.2292367

Cite this

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title = "New 25 T Cryogen-Free Superconducting Magnet Project at Tohoku University",

abstract = "The new high magnetic field research laboratory network is recognized as one of the Japanese Master Plans of Large Research Project by the Science Council of Japan. Recently, the project of the 25 T cryogen-free superconducting magnet (25 T-CSM), which is operated under a conductive cooling condition by cryocooler, was approved under the high magnetic field research laboratory network. We adopted a high strength CuNb/Nb3Sn Rutherford cable with a prebending treatment for the middle section coils of the 25 T-CSM. The central magnetic field of 14 T is generated by the operational current of 851 A by the Nb3Sn middle section and NbTi outer section coils in a 300 mm bore. The induced maximum hoop stress in the CuNb/Nb3Sn section is about 250 MPa. In addition, the 11.5 T high temperature superconducting insert coil is also designed using Gd123 tapes. Therefore, a total central magnetic field of 25.5 T can be achieved.",

keywords = "Coated conductor, cryogen-free superconducting magnet, high magnetic field, high strength NbSn Rutherford cable",

author = "Satoshi Awaji and Kazuo Watanabe and Hidetoshi Oguro and Satoshi Hanai and Hiroshi Miyazaki and Masahico Takahashi and Shigeru Ioka and Masahiro Sugimoto and Hirokazu Tsubouchi and Shinji Fujita and Masanori Daibo and Yasuhiro Iijima and Hiroaki Kumakura",

note = "Funding Information: The performance test of the CuNb/Nb3Sn Rutherford coil was performed at the TML, NIMS. We thank S. Nimori and S. Matsumoto for their help. Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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AU - Awaji, Satoshi

AU - Watanabe, Kazuo

AU - Oguro, Hidetoshi

AU - Hanai, Satoshi

AU - Miyazaki, Hiroshi

AU - Takahashi, Masahico

AU - Ioka, Shigeru

AU - Sugimoto, Masahiro

AU - Tsubouchi, Hirokazu

AU - Fujita, Shinji

AU - Daibo, Masanori

AU - Iijima, Yasuhiro

AU - Kumakura, Hiroaki

N1 - Funding Information: The performance test of the CuNb/Nb3Sn Rutherford coil was performed at the TML, NIMS. We thank S. Nimori and S. Matsumoto for their help. Publisher Copyright: © 2002-2011 IEEE.

PY - 2014/6

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N2 - The new high magnetic field research laboratory network is recognized as one of the Japanese Master Plans of Large Research Project by the Science Council of Japan. Recently, the project of the 25 T cryogen-free superconducting magnet (25 T-CSM), which is operated under a conductive cooling condition by cryocooler, was approved under the high magnetic field research laboratory network. We adopted a high strength CuNb/Nb3Sn Rutherford cable with a prebending treatment for the middle section coils of the 25 T-CSM. The central magnetic field of 14 T is generated by the operational current of 851 A by the Nb3Sn middle section and NbTi outer section coils in a 300 mm bore. The induced maximum hoop stress in the CuNb/Nb3Sn section is about 250 MPa. In addition, the 11.5 T high temperature superconducting insert coil is also designed using Gd123 tapes. Therefore, a total central magnetic field of 25.5 T can be achieved.

AB - The new high magnetic field research laboratory network is recognized as one of the Japanese Master Plans of Large Research Project by the Science Council of Japan. Recently, the project of the 25 T cryogen-free superconducting magnet (25 T-CSM), which is operated under a conductive cooling condition by cryocooler, was approved under the high magnetic field research laboratory network. We adopted a high strength CuNb/Nb3Sn Rutherford cable with a prebending treatment for the middle section coils of the 25 T-CSM. The central magnetic field of 14 T is generated by the operational current of 851 A by the Nb3Sn middle section and NbTi outer section coils in a 300 mm bore. The induced maximum hoop stress in the CuNb/Nb3Sn section is about 250 MPa. In addition, the 11.5 T high temperature superconducting insert coil is also designed using Gd123 tapes. Therefore, a total central magnetic field of 25.5 T can be achieved.

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New 25 T Cryogen-Free Superconducting Magnet Project at Tohoku University

Abstract

Keywords

ASJC Scopus subject areas

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