Journal
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Volume 415, Issue 4, Pages 189-196Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physc.2004.08.014
Keywords
HTS tapes; magnetic resonance imaging; RF coil; signal-to-noise ratio; surface resistance; critical current density
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High temperature superconducting tapes are potential materials for radio frequency coils in magnetic resonance imaging. They show advantages of much lower cost and easier fabrication over HTS thin film coils. Resistance of HTS tape coils in the magnetic field was evaluated and their quality factors were analyzed. A 50mm in diameter HTS tape coil for 1.5T high field MRI was demonstrated for phantom imaging. It obtained a 1.11-fold and a 1.36-fold SNR improvement over the same size copper coil at 77 K and 300 K respectively. Technical issues with HTS tape coils in practice were also discussed. (C) 2004 Elsevier B.V. All rights reserved.
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