High Temperature Superconducting (HTS) Multi Loop Transmission Line Resonator for Magnetic Resonance Imaging

Motivation: Multi-Loop Coils (MLCs) allow to reduce the sample-induced noise while achieving a large Field Of View. Their sensitivity would be improved with the use of superconducting materials. Goal(s): We aim to develop a superconducting MLC achieving both a large Field Of View and high quality factor. Approach: An initial design is modified to render a MLC self-resonant and optimized using electromagnetic simulations. Results: The HTS Multi Loop Transmission Line Resonator coil characterizations are presented. Q-factor and resonance frequency decline in presence of the static magnetic field or of a conductive sample but the coil still exhibits higher performances than copper MLCs. Impact: Multi Loop Transmission Line Resonator represents a promising design strategy to increase the Field Of View of HTS reception coils without compromising with the coil sensitivity.