Construction and test result of an all-REBCO conduction-cooled 23.5 T magnet prototype towards a benchtop 1 GHz NMR spectroscopy.

IF 3.7 1区 物理与天体物理 Q2 PHYSICS, APPLIED Superconductor Science & Technology Pub Date : 2022-08-01 Epub Date: 2022-08-31 DOI:10.1088/1361-6668/ac8773
Wooseung Lee, Dongkeun Park, Juan Bascuñán, Yukikazu Iwasa
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Abstract

A compact benchtop high-field REBCO NMR is one of the most promising HTS applications. An all-REBCO, conduction-cooled magnet is a very attractive design option for demonstrating the unique potential of REBCO for forefront magnets. In this research, we have successfully constructed and tested a prototype all-REBCO, conduction-cooled, 23.5 T magnet operating at 10 K. We have applied the concept of an extreme No-Insulation (NI) winding technique, coupled with a solder-shunting procedure to improve magnet performance. We have also used a temperature-controlled charging sequence (TCCS) to reduce the screening current. The magnet was energized to 23.6 T at 14 K; it was further operated to 25 T at 10 K for nearly 60 hours.

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用于台式 1 GHz NMR 光谱仪的全 REBCO 传导冷却型 23.5 T 磁体原型的构建和测试结果。
紧凑型台式高场 REBCO NMR 是最有前途的 HTS 应用之一。全 REBCO 传导冷却磁体是一种极具吸引力的设计方案,可用于展示 REBCO 在前沿磁体方面的独特潜力。在这项研究中,我们成功构建并测试了在 10 K 下工作的全 REBCO、传导冷却型 23.5 T 磁体原型。我们应用了极端无绝缘(NI)绕组技术的概念,并结合焊料分流程序来提高磁体性能。我们还使用了温控充电序列(TCCS)来降低屏蔽电流。磁体在 14 K 时通电至 23.6 T;在 10 K 时进一步运行至 25 T,持续近 60 小时。
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来源期刊
Superconductor Science & Technology
Superconductor Science & Technology 物理-物理:凝聚态物理
CiteScore
6.80
自引率
27.80%
发文量
227
审稿时长
3 months
期刊介绍: Superconductor Science and Technology is a multidisciplinary journal for papers on all aspects of superconductivity. The coverage includes theories of superconductivity, the basic physics of superconductors, the relation of microstructure and growth to superconducting properties, the theory of novel devices, and the fabrication and properties of thin films and devices. It also encompasses the manufacture and properties of conductors, and their application in the construction of magnets and heavy current machines, together with enabling technology.
期刊最新文献
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