13 C-Optimized HTS NMR RF Coil Design at 21.1 T

We present the design of a novel high-temperature superconductor double-sided racetrack resonator for a C optimized nuclear magnetic resonance (NMR) transmitter/receiver coil. The coils operate in a 21.1 T magnet and accommodate a 3 mm × 6.2 mm cross-section rectangular sample tube. The design inclu...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2021-08, Vol.31 (5), p.1-5
Main Authors: Sanati, O, Edison, A S, Hornak, L A, Litvak, I M, Ramaswamy, V, Freytag, N, Brey, W W
Format: Article
Language:English
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Summary:We present the design of a novel high-temperature superconductor double-sided racetrack resonator for a C optimized nuclear magnetic resonance (NMR) transmitter/receiver coil. The coils operate in a 21.1 T magnet and accommodate a 3 mm × 6.2 mm cross-section rectangular sample tube. The design includes the incorporation of revised finger lengths to improve the homogeneity of current density across the fingers, a new laser trimming approach for adjusting the resonance frequency, and improved ability to shift higher-order modes for suitability in H/ C NMR probes. Resonator design methodology, simulations and experimental results are presented.
ISSN:1051-8223
1558-2515
DOI:10.1109/tasc.2021.3069678