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传导冷却无绝缘高温超导二极磁体的研制
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1.中国科学院近代物理研究所;2.西安聚能超导磁体科技有限公司

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新一代强流重离子加速器关键束流物理和核心技术预研(Y910350101)、中国科学院战略先导B项(低交流损耗超导磁体,Y815010XD1)、国家自然科学(11927901)、广东省引进创新创业团队计划(2016ZT06G73)资助


Research and development of a conduction-cooled, no-insulation HTS dipole magnet
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1.Institute of Modern Physics of Chinese Academy of Science,Lanzhou;2.Institute of Modern Physics of Chinese Academy of Science

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    摘要:

    本文研制了一台中心磁场为1.5T的传导冷却型的无绝缘高温超导二极磁体,它主要由常温铁芯、高温超导双饼线圈以及低温恒温器等组成。铁芯的极头采用圆柱形结构,极头之间的距离为120mm。其中,每个线圈匝数为176匝,磁体的运行电流为286A。线圈冷体由一台GM制冷机进行冷却,运行温度小于20K。本文主要介绍高温超导磁体的设计以及所使用高温超导带材的载流性能,并对无绝缘线圈在装入铁芯前和装入铁芯后的充电和放电特性进行了测试研究。通过测试得到了该磁体充电延迟时间常数,并且测试结果表明,在励磁电流为286A时,中心磁场强度达到了设计要求。

    Abstract:

    A conduction-cooled and no-insulation high temperature superconducting (HTS) dipole magnet with a 1.5T center magnetic field has been developed. It consists of a room temperature iron, HTS double pancake coils and a cryostat. The poles of iron utilize the cylindrical structure and the distance between two poles is 120mm. Each coil has 176 turns and the nominal operating current is 286A. The cold mass of coil is cooled by using a GM cryocooler and the operating temperature is below 20K. This paper describes the HTS dipole magnet design and the carrying-current capacity of YBCO tape and reports the charging and discharging test research of the no-insulation coil with and without iron core. The charging delay time constant is acquired by the experiment and the test result shows that the center magnetic field meets design requirement at the operating current of 286A.

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杜卓越,陈玉泉,吴巍,吴北民,欧贤金,梅恩铭,马力祯,马鹏,李超.传导冷却无绝缘高温超导二极磁体的研制[J].稀有金属材料与工程,2022,51(10):3900~3904.[Zhuoyue Du, Yuquan Chen, Wei Wu, Beimin Wu, Xianjin Ou, Enming Mei, Lizhen Ma, Peng Ma, Li Chao. Research and development of a conduction-cooled, no-insulation HTS dipole magnet[J]. Rare Metal Materials and Engineering,2022,51(10):3900~3904.]
DOI:10.12442/j. issn.1002-185X.20210809

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历史
  • 收稿日期:2021-09-13
  • 最后修改日期:2021-10-13
  • 录用日期:2021-10-27
  • 在线发布日期: 2022-11-01
  • 出版日期: 2022-10-28