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Home > Science, Technology & Agriculture > Energy technology and engineering > Electrical engineering > Design and Implementation of High Temperature Superconducting (Hts) Tape RF Coil and Cryostat for MRI Applications
Design and Implementation of High Temperature Superconducting (Hts) Tape RF Coil and Cryostat for MRI Applications

Design and Implementation of High Temperature Superconducting (Hts) Tape RF Coil and Cryostat for MRI Applications


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About the Book

This dissertation, "Design and Implementation of High Temperature Superconducting (HTS) Tape RF Coil and Cryostat for MRI Applications" by Yum-wing, Wong, 黃鑫榮, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled Design and Implementation of High Temperature Superconducting (HTS) Tape RF Coil and Cryostat for MRI Applications Submitted by Wong Yum Wing For the Degree of Master of Philosophy At the University of Hong Kong In June 2006 Cryogenically-cooled radiofrequency (RF) coils using high temperature superconducting (HTS) materials in the form of wire or tape have been shown to provide substantial signal-to-noise ratio (SNR) improvements in magnetic resonance imaging (MRI) at a relatively low cost, but have not yet been widely adopted for clinical practice because the ceramic compounds used in their manufacture make them quite fragile. In this study a novel method of fabricating HTS tape coil is proposed that provides considerably better protection. An HTS tape surface coil was designed and implemented for human imaging and exhibited an SNR improvement of 350% over an equivalent room temperature copper coil at 0.21T. An HTS volume coil for in-vivo mice imaging was first demonstrated with an improvement of 270% in SNR. A low-cost cryogenic system was also designed and implemented and was able to maintain stable performance for at least half an hour. These results suggest that HTS tape coils of different geometries and configurations with significant SNR improvements can be more easily realized and achieved at a relatively low cost, which can be traded-off for shorter acquisition time or higher resolution. Potential applications include mice imaging, which is important for basic research and clinical investigations, and human imaging in both low and high field MRI systems. DOI: 10.5353/th_b3710998 Subjects: High-temperature superconductors - Materials Magnetic resonance imaging


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Product Details
  • ISBN-13: 9781361468340
  • Publisher: Open Dissertation Press
  • Publisher Imprint: Open Dissertation Press
  • Height: 279 mm
  • No of Pages: 98
  • Weight: 249 gr
  • ISBN-10: 1361468343
  • Publisher Date: 27 Jan 2017
  • Binding: Paperback
  • Language: English
  • Spine Width: 5 mm
  • Width: 216 mm


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