REBCO Layer-Wound Coil Tests Under Electromagnetic Forces in an External Magnetic Field of up to 17.2 T

Author

Matsumoto, S. ; Seyong Choi ; Kiyoshi, T. ; Otsuka, A. ; Hamada, Mohamed ; Maeda, Hideaki ; Yanagisawa, Y. ; Nakagome, H. ; Suematsu, H.

Author_Institution

Supercond. Wire Unit, Nat. Inst. for Mater. Sci., Tsukuba, Japan

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

9501604

Lastpage

9501604

Abstract

A nuclear magnetic resonance (NMR) system using a high-temperature superconducting (HTS) magnet and a probe with an HTS radio frequency coil is currently under development. The HTS NMR magnet is expected to reduce the volume occupied by the magnet and to encourage users to install higher field NMR systems. RE-Ba-Cu-O-coated (REBCO-coated) conductors offer the advantages of a higher critical current density than low-temperature superconductors in magnetic fields above 10 T as well as tolerance to high tensile stress. Both of these factors are expected to lead to a reduction in the volume of the magnet. Four REBCO layer-wound test coils were fabricated in order to investigate their properties under electromagnetic forces in an external magnetic field of up to 17. 2 T. The REBCO coils with a practical inner diameter were successfully operated under electromagnetic forces of over 200 MPa in high magnetic fields.

Keywords

critical current density (superconductivity); electromagnetic forces; superconducting coils; superconducting magnets; HTS radio frequency coil; REBCO; electromagnetic forces; external magnetic field; high-temperature superconducting magnet; higher critical current density; layer-wound coil tests; nuclear magnetic resonance system; Coils; Conductors; Joints; Magnetic fields; Magnetomechanical effects; Nuclear magnetic resonance; Superconducting magnets; Electromagnetic force; RE-Ba-Cu-O-coated (REBCO-coated) conductor; REBCO layer-wound coil;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2012.2185024

Filename

6164239