Persistent-mode high-temperature superconductor shim coils: A design concept and experimental results of a prototype Z 1 high-temperature superconductor shim

Design, fabrication, and test results of a type persistent-mode high-temperature superconductor (HTS) shim coil are presented. A prototype 1 rectangle-loop shim, cut from 46-mm wide Y-Ba-Cu-O tape manufactured by AMSC, was fabricated and tested at 77 K. The HTS shim, much thinner than the convention...

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Bibliographic Details
Published in:Applied physics letters 2013-07, Vol.103 (5), p.52607
Main Authors: Iwasa, Yukikazu, Hahn, Seungyong, Voccio, John, Keun Park, Dong, Kim, Youngjae, Bascuñán, Juan
Format: Article
Language:English
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Summary:Design, fabrication, and test results of a type persistent-mode high-temperature superconductor (HTS) shim coil are presented. A prototype 1 rectangle-loop shim, cut from 46-mm wide Y-Ba-Cu-O tape manufactured by AMSC, was fabricated and tested at 77 K. The HTS shim, much thinner than the conventional NbTi shim, is placed inside the main magnet and immune to its diamagnetic wall effects. Combined with the >12-T and >10-K operation capability, the HTS shim offers a versatile design option for nuclear magnetic resonance (NMR) magnets, liquid-helium-free as well as conventional, and is particularly attractive in the next generation NMR magnets.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4816132