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

被引：59

作者：

Awaji, Satoshi ^{[1
]}

Watanabe, Kazuo ^{[1
]}

Oguro, Hidetoshi ^{[1
]}

Hanai, Satoshi ^{[2
]}

Miyazaki, Hiroshi ^{[2
]}

Takahashi, Masahico ^{[2
]}

Ioka, Shigeru ^{[2
]}

Sugimoto, Masahiro ^{[3
]}

Tsubouchi, Hirokazu ^{[3
]}

Fujita, Shinji ^{[4
]}

Daibo, Masanori ^{[4
]}

Iijima, Yasuhiro ^{[4
]}

Kumakura, Hiroaki ^{[5
]}

机构：

[1] Tohoku Univ, Inst Mat Res, High Field Lab Superconducting Mat, Sendai, Miyagi 9808577, Japan

[2] Toshiba Co Ltd, Yokohama, Kanagawa 2300045, Japan

[3] Furukawa Elect Corp Ltd, Nikko 3211493, Japan

[4] Fujikura Ltd, Chiba 2858550, Japan

[5] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2014年 / 24卷 / 03期

关键词：

Coated conductor; cryogen-free superconducting magnet; high magnetic field; high strength Nb3Sn Rutherford cable;

D O I：

10.1109/TASC.2013.2292367

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页数：5

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