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High temperature superconducting cables are necessary for next-generation high-field accelerator magnets, and various types of HTS cables have been developed worldwide. We have started the development of HTS cables in which rare-earth barium copper oxide coated conductors are spirally wound around a flexible multi-wire core. In this study, we constructed five sample cables with a 2-mm-wide coated conductor and a 1.8-mm-diameter multi-wire core. The transport critical current of the coated conductors used for the sample cables was measured at 77 K and 4.2 K. At 4.2 K, the Ic was measured in a perpendicular magnetic field from 1 T to 18 T. The transport Ic and bending properties of the sample cables were characterized at 77 K.Thecable Ic degraded 10–16% due to the cable construction and 10% after bending the cable with a radius of 20mm.The cable current density at 20 T and 4.2 K was estimated as a function of the cable diameter.

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• In Copyright
  

  © 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

キーワード: REBCO, cable, critical current, current density, high magnetic field

刊行年月日: 2023-12-21

出版者: Institute of Electrical and Electronics Engineers (IEEE)

掲載誌:

• IEEE Transactions on Applied Superconductivity (ISSN: 10518223) vol. 34 issue. 5 p. 1-5

研究助成金:

• MEXT Development of key element technologies to improve the performance of future accelerators Program JPMXP1423812204
• JSPS KAKENHI 19H01911

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.5571

公開URL: https://doi.org/10.1109/tasc.2023.3345848

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更新時刻: 2025-07-11 08:30:17 +0900

MDRでの公開時刻: 2025-07-11 08:16:42 +0900