title: Persistent-mode high-temperature superconductor shim coils: A design concept and experimental results of a prototypeZ1 high-temperature superconductor shim.
abstract: Design, fabrication, and test results of a type persistent-mode high-temperature superconductor (HTS) shim coil are presented. A prototypeZ1 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.
authors: Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 170 Albany Street, Cambridge, Massachusetts 02139, USA.
authors: Yukikazu
authors: Y
authors: Iwasa
authors: Seungyong
authors: S
authors: Hahn
authors: John
authors: J
authors: Voccio
authors: Dong
authors: D
authors: Keun Park
authors: Youngjae
authors: Y
authors: Kim
authors: Juan
authors: J
authors: Bascuñán
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