Design, Fabrication, and Performance Tests of a HTS Superconducting Dipole Magnet
Design, Fabrication, and Performance Tests of a HTS Superconducting Dipole Magnet
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DOI：
10.1109/tasc.2011.2179392
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发表时间：
2012-06
影响因子：
1.8
通讯作者：
C. K. Yang;C. Hwang;J. Jan;F. Lin;C. -. Chang;M. Fee;M. Christian
中科院分区：
文献类型：
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作者：
C. K. Yang;C. Hwang;J. Jan;F. Lin;C. -. Chang;M. Fee;M. Christian
高温超导线圈用于加速器磁体可显著降低功率消耗和运行成本。因此，一个初步的研究已经启动，并与HTS线圈的偶极磁体的原型设计和制造的NSRRC和HTS-110有限公司。虽然2G YBCO线预计将在未来的HTS应用中使用，它目前需要更多的接头，以形成完整的线圈。为此，我们选择了1G BSCCO线的高温超导线圈。磁体的高温超导线圈冷却采用两台单级脉管制冷机和一台压缩机，但今后将用液氮制冷机代替脉管制冷机。高温超导磁体在50 K、110 A电流下工作时，在横向-20 ≤ x ≤ 20 mm范围内，磁场均匀性优于1.5 × 10-4，磁场强度为1.19 T。为了与铜线圈双极磁体的磁场特性进行比较，采用霍尔探针测量系统对国家同步辐射研究中心的高温超导双极磁体的详细磁场和B-I特性进行了测量。
The use of HTS (high-temperature superconductor) coils for accelerator magnets decreases significantly the power consumption and operating cost. Therefore, a preliminary study was launched and a prototype of a dipole magnet with HTS coils has been designed and fabricated by NSRRC and HTS-110 Ltd. Although 2G YBCO wire is expected to be used in future HTS applications, it currently requires more joints to form the completed coils. For this reason, we chose 1G BSCCO wires for the HTS coils. Two single-stage pulse-tube refrigerators with one compressor serve to cool the HTS coils of the magnet, but we shall use LN2 to replace the pulse-tube refrigerators in the future. The HTS magnet is designed to provide a stable field of strength 1.19 T with field homogeneity better than 1.5 × 10-4 in the range of the transverse -20 ≤ x ≤ 20 mm direction when it operates at 50 K with a current of 110 A. To compare with the field features of copper-coil dipole magnets, a Hall-probe measurement system was used to measure the detailed magnetic field and B-I characteristics of the HTS dipole magnet at NSRRC.