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首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >A novel REBCO conductor design to reduce screening-current field in REBCO magnets
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A novel REBCO conductor design to reduce screening-current field in REBCO magnets

机译：一种新的REBCO指挥设计，减少雷柏磁铁中的筛选电流场

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Due to its very high critical fields, the second-generation high-temperature superconductor (2G HTS) has been, and is being, used in high-field magnets. However, a persistent screening current induced in the REBCO conductor under time-varying conditions distorts the magnetic field, spatially and temporally. We describe a novel REBCO conductor design composed of narrow-stacked (NS) wire, a bundle of 1 mm wide REBCO tapes. The design is based on a fundamental notion that the narrower the REBCO tape width, the smaller the screen-current field (SCF). In this paper, both experimental and simulation work were carried out to analyze SCF in a REBCO coil wound with an NS wire. We demonstrate that the critical current of NS wires can be consistent with the conventional REBCO tape to meet the application requirements. Meanwhile, NS wire indeed substantially results in small SCF, an important requirement in high-field magnets such as for NMR, MRI, and HEP that may rely on REBCO conductor.
机译：由于其非常高的临界领域，第二代高温超导体（2G HTS）已经存在，并且在高场磁体中使用。 然而，在时变条件下在雷柏导体中引起的持续筛选电流使磁场在空间和时间上扭曲。 我们描述了一种由窄堆叠（NS）线组成的新型雷柏导体设计，这是一个1毫米宽的rebco磁带的捆绑。 该设计基于一个基本的概念，即rebco磁带宽度较窄，屏幕电流字段（SCF）越小。 在本文中，进行了实验和仿真工作，以分析用NS线缠绕的击退线圈中的SCF。 我们证明NS线的临界电流可以与传统的雷柏磁带一致，以满足应用要求。 同时，NS线确实产生了小的SCF，这是可以依赖于雷柏导线的NMR，MRI和HEP中的高磁场磁体的重要要求。

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