15 T高场复合超导磁体低温实验研究  

Low temperature experimental study on 15 T high-field hybrid superconducting magnet

作　　者：薛圣泉 高鹏 张展 秦经刚 张舒庆 代天立 龙风 刘方 刘华军 徐鹏 于敏 周超 Xue Shengquan;Gao Peng;Zhang Zhan;Qin Jinggang;Zhang Shuqing;Dai Tianli;Long Feng;Liu Fang;Liu Huajun;Xu Peng;Yu Min;Zhou Chao(Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Science,Hefei 230031,China;University of Science and Technology of China,Hefei 230001,China;Institute of Energy,Hefei Comprehensive National Science Center,Hefei 230031,China)

机构地区：[1]中国科学院合肥物质科学研究院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026 [3]合肥综合性国家科学中心能源研究院,合肥230031

出　　处：《低温与超导》2021年第11期15-18,95,共5页Cryogenics and Superconductivity

基　　金：国家重点研究发展计划(2019YFC0117502)资助。

摘　　要：大孔径高均匀度高场磁体是进行超导材料性能测试的必要条件之一。本文主要介绍了15 T高场复合超导磁体的低温励磁实验与结果。该磁体包括两个高性能Nb_(3)Sn线圈、一个ITER Nb_(3)Sn线圈和一个NbTi线圈,分别处于磁体的高、中、低场部分。磁体外径329.9 mm,高度401.44 mm,中心孔径77.5 mm,磁体中心磁场测量值14.94 T,轴向磁场(98%)均匀区测量长度55 mm,超过了磁体设计指标要求的40 mm,测试结果满足设计要求。Large-aperture,high-uniformity and high-field magnets are one of the necessary conditions for performance examination of the superconducting materials.The low-temperature excitation experiments and the results of 15 T high-field hybrid superconducting magnet were mainly presented.The magnet comprised two high-performance Nb_(3)Sn coils,an ITER Nb_(3)Sn coil and a NbTi coil,which were located in the high,medium and low field parts of the magnet.The outer diameter of the magnet was 329.9 mm with the height of 401.44 mm and the inner diameter of 77.5 mm.The tested center magnetic field was 14.94 T,and the axial magnetic field(98%)homogeneity length was 55 mm,which exceeded the requirement of 40 mm.The test results indicate the magnet properties successfully satisfy the design requirements.

关 键 词：15T超导磁体 NbTi线圈 NB Sn线圈 低温励磁实验 

分 类 号：TM26[一般工业技术—材料科学与工程]