Excitation and magnetic field performances of a prototype REBCO sextuple coil at 4.2 K
Excitation and magnetic field performances of a prototype REBCO sextuple coil at 4.2 K
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原型 REBCO 六重线圈在 4.2 K 下的励磁和磁场性能
DOI：
10.1109/tasc.2020.2969396
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
A. Kikuchi
中科院分区：
文献类型：
--
作者：
X. Wang;K. Tsuchiya;Y. Arimoto;A. Terashima;S. Fujita;M. Tawada;R. Ueki;Z. Zong;M. Kawai;M. Masuzawa;N. Oguchi;A. Kikuchi
设计并制造了一个REBa2Cu3Oy （REBCO）六极线圈的原型，用于非对称能量对撞机SuperKEKB的色度校正。REBCO六极线圈由6个两层矩形线圈组成，用4mm宽的涂层导体缠绕，并浸渍环氧树脂。内孔半径为75mm，线圈长度为200mm。设计的六极磁场梯度为200 T/m2，工作电流为250 A。制作完成后，我们对REBCO六极线圈进行了一系列实验。在本文中，我们给出了在4.2 K下励磁测试和磁场测量的实验结果。
A prototype REBa2Cu3Oy (REBCO) sextupole coil was designed and fabricated for the chromaticity correction of an asymmetric-energy collider, named SuperKEKB. The REBCO sextupole coil consists of the six two-layer-rectangular coils, which are wound with a 4-mm-wide coated conductor and impregnated with the epoxy resin. The inner bore radius and coil length are 75 mm and 200 mm, respectively. The designed sextupole field gradient is 200 T/m2at an operating current of 250 A. We conducted a series of the experiments on the REBCO sextupole coil after the fabrication. In this paper, we present the experimental results of the excitation test and magnetic field measurement at 4.2 K.