A HTS scanning magnet and AC operation
A HTS scanning magnet and AC operation
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DOI：
10.1016/j.nima.2010.02.068
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发表时间：
2010-04
影响因子：
1.4
通讯作者：
K. Hatanaka;J. Nakagawa;M. Fukuda;T. Yorita;T. Saito;Y. Sakemi;T. Kawaguchi;K. Noda
中科院分区：
文献类型：
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作者：
K. Hatanaka;J. Nakagawa;M. Fukuda;T. Yorita;T. Saito;Y. Sakemi;T. Kawaguchi;K. Noda
一个扫描磁铁使用高温超导（HTS）线的设计，建造，并测试其适用性作为束流扫描器。在成功的冷却测试之后，使用DC和AC电流研究磁体性能。使用直流电流，磁铁成功运行，产生设计的磁场分布和有效长度。在交流模式下，磁体在30 - 59Hz和77K以及10 - 20Hz和20K的温度下工作。线圈中耗散的功率损耗进行了测量，并与模型计算进行了比较。所观察到的每个周期的损失是独立的频率和缩放比例的传输电流的规律是一致的理论预测的滞后损耗在高温超导线材。
A scanning magnet using high-temperature superconductor (HTS) wire was designed, built, and tested for its suitability as a beam scanner. After successful cooling tests, the magnet performance was studied using DC and AC currents. With DC current the magnet was successfully operated to generate designed field distributions and effective length. In AC mode, the magnet was operated at frequencies of 30–59Hz and a temperature of 77K as well as 10–20Hz and 20K. The power losses dissipated in the coils were measured and compared with the model calculations. The observed losses per cycle were independent of the frequency and the scaling law of the transport current was consistent with theoretical predictions for hysteretic losses in HTS wires.