Low-Temperature Operation of a Bulk HTSC Staggered Array Undulator
Low-Temperature Operation of a Bulk HTSC Staggered Array Undulator
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DOI：
10.1109/tasc.2011.2180498
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发表时间：
2012-06-01
影响因子：
1.8
通讯作者：
Ohgaki, H.
中科院分区：
文献类型：
--
作者：
Kii, T.;Kinjo, R.;Ohgaki, H.
使用大块高温超导体（HTSs）作为波动器是有吸引力的，因为在低温下可以产生高磁场。虽然产生高磁场的潜力很大，但用于周期性磁场产生的块状高温超导材料的原位磁化是一个具有挑战性的问题。最近，我们提出了一种使用大块高tc超导体（HTS）和螺线管磁铁的新型波动器。该波动器被命名为块状HTSC交错阵列波动器（Bulk HTSC SAU），由块状HTSC、铜绝缘体和电磁磁铁堆叠阵列组成。用液氮在77 K下进行了原理验证实验。使用用于Bulk HTSC SAU的HTS的性能测量结果估计了约30 K时的估计性能。当波动周期长度为9.9 mm，波动间隙为4.0 mm时，预期波动峰场达到1.08 T。这一性能比现有技术高出约2倍。
A use of bulk high-temperature superconductors (HTSs) for an undulator is attractive since a high magnetic field can be generated at low-temperatures. While potential for generation of the high magnetic field is high, in-situ magnetization of the bulk HTSs for periodic field generation is challenging issue. Recently, we proposed a new type of undulator using bulk high-Tc superconductors (HTS) and a solenoid magnet. The undulator, named Bulk HTSC staggered array undulator (Bulk HTSC SAU), consists of a stacked array of bulk HTSs and copper insulators and a solenoid magnet. A proof of principle experiment at 77 K using liquid nitrogen has been carried out. The estimated performance at about 30 K was estimated using results of property measurements for the HTS used for the Bulk HTSC SAU. The expected undulator peak field reaches to 1.08 T for undulator period length of 9.9 mm for the undulator gap of 4.0 mm. This performance is about 2 times higher than that of existing technologies.