Superconducting array for high-field magnetic resonance imaging

We report on the design of a planar 200 MHz superconducting two-resonator array for magnetic resonance imaging (MRI) applications. The array was made out of a double-sided thin Y Ba 2 Cu 3 O 7 − x film on r -cut sapphire substrate and consists of two 24 mm diameter resonators with built-in planar ca...

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Bibliographic Details
Published in:Applied physics letters 2007-10, Vol.91 (18), p.183503-183503-3
Main Authors: Wosik, J., Xue, L., Xie, L.-M., Kamel, M. R., Nesteruk, K., Bankson, James A.
Format: Article
Language:English
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Summary:We report on the design of a planar 200 MHz superconducting two-resonator array for magnetic resonance imaging (MRI) applications. The array was made out of a double-sided thin Y Ba 2 Cu 3 O 7 − x film on r -cut sapphire substrate and consists of two 24 mm diameter resonators with built-in planar capacitors for coupling to the tuning and matching electronics. Required for the performance of the MRI array, rf isolation of two resonators was accomplished by built-in planar capacitors, and the mechanism of resonator-to-resonator decoupling was analyzed. The signal-to-noise gain as a result of using high- T c superconductor resonators/arrays was calculated and compared with experimental data.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2801384