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http://dx.doi.org/10.9714/psac.2012.14.1.044

Study on fabricated RF coil using high-temperature superconductor tape and matching circuit for low field MRI system  

Kim, D.H. (인제대 대학원 의용공학과)
Ko, R.K. (한국전기연구원 초전도연구센터)
Kang, B.M. (한국전기연구원 초전도연구센터)
Ha, D.W. (한국전기연구원 초전도연구센터)
Sohn, M.H. (한국전기연구원 초전도연구센터)
Mun, C.W. (인제대 의용공학과)
Publication Information
Progress in Superconductivity and Cryogenics / v.14, no.1, 2012 , pp. 44-47 More about this Journal
Abstract
The substantial improvement of the signal-to-noise ratio (SNR) can be achieved with small-size samples or low-field MRI system by high-temperature superconducting(HTS) RF coil. The typical HTS RF coil made of HTS thin film is expensive and is limited the coil geometry to planar surface coil. In this study, commercial Bi-2223 HTS tapes was used as RF coil for a 0.35T permanent MRI system. It has advantages of both much lower cost and easier fabrication over HTS thin film coil. SNR gain of the image obtained from the HTS RF coil over a conventional Cu RF coil at room temperature was about 2.4-fold and 1.9-fold using the spin echo pulse sequence and gradient echo pulse sequence respectively.
Keywords
high-temperature uperconducting(HTS); Bi-2223 tape; signal-to-noise ratio; RF coil; MRI;
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