A high temperature superconductor tape RF receiver coil for a low field magnetic resonance imaging system

Authors: Cheng, M.C.; Lee, K.H.; Y, Q.; Yang, E.S.; Yan, B.P.

Source: Superconductor Science and Technology, Volume 18, Number 8, August 2005 , pp. 1100-1105(6)

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Abstract:

High temperature superconductor (HTS) thin films have been applied in making a low loss RF receiver coil for improving magnetic resonance imaging image quality. However, the application of these coils is severely limited by their limited field of view (FOV). Stringent fabrication environment requirements and high cost are further limitations. In this paper, we propose a simpler method for designing and fabricating HTS coils. Using industrial silver alloy sheathed Bi_(2-x)Pb_xSr₂Ca₂Cu₃O₁₀ (Bi-2223) HTS tapes, a five-inch single-turn HTS solenoid coil has been developed, and human wrist images have been acquired with this coil. The HTS tape coil has demonstrated an enhanced FOV over a six-inch YBCO thin film surface coil at 77 K with comparable signal-to-noise ratio.

Document Type: Research article

DOI: http://dx.doi.org/10.1088/0953-2048/18/8/013

Publication date: 2005-08-01