26 T 35 mm all-GdBa2Cu3O7–x multi-width no-insulation superconducting magnet
26 T 35 mm all-GdBa2Cu3O7–x multi-width no-insulation superconducting magnet
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DOI：
10.1088/0953-2048/29/4/04lt04
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发表时间：
2016-03
影响因子：
3.6
通讯作者：
Sangwon Yoon;Jaemin Kim;K. Cheon;Hunju Lee;S. Hahn;S. Moon
中科院分区：
文献类型：
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作者：
Sangwon Yoon;Jaemin Kim;K. Cheon;Hunju Lee;S. Hahn;S. Moon
26T、35mm缠绕直径全GdBa2Cu3O 7−x（GdBCO）磁体由MIT Francis Bitter磁体实验室设计，由SuNAM有限公司建造和测试。采用多宽度（MW）无绝缘（NI）高温超导体（HTS）缠绕技术，磁体高度紧凑；其总直径和高度分别为 172 和 327 毫米。它由一堆 26 个 NI 双扁平线圈组成，缠绕有 MW GdBCO 胶带，宽度为 4.1-8.1 毫米，有五种不同的宽度。在 77 K 液氮浴中，由于固有的 NI 特性，磁体的充电时间常数为 16 分钟。在 4.2 K 的液氦中，磁体在中心产生 26.4 T 的磁场，这是全高温超导磁体的磁场强度记录。结果表明 MW-NI GdBCO 磁体在直流高场应用中具有强大的潜力。
A 26 T 35 mm winding diameter all-GdBa2Cu3O 7 − x (GdBCO) magnet was designed by the MIT Francis Bitter Magnet Laboratory, and constructed and tested by the SuNAM Co., Ltd. With the multi-width (MW) no-insulation (NI) high temperature superconductor (HTS) winding technique incorporated, the magnet is highly compact; its overall diameter and height are 172 and 327 mm, respectively. It consists of a stack of 26 NI double pancake coils wound with MW GdBCO tapes in five different widths ranged 4.1–8.1 mm. In a bath of liquid nitrogen at 77 K, the magnet had a charging time constant of 16 min due to the intrinsic NI characteristics. In liquid helium at 4.2 K, the magnet generated a 26.4 T field at the center, a record high in magnetic fields from all-HTS magnets. The results demonstrate a strong potential of MW-NI GdBCO magnets for direct current high-field applications.