Superconducting magnetic resonance probe coil
A magnetic resonance probe coil is fabricated using a superconductive material for the coil. Three distinct embodiments are described: a single-layer coil with no crossovers; a dual-film coil wherein the capacitors are formed through an intermediate dielectric layer; a single-layer coil incorporating a superconducting crossover. All of the embodiments are designed to take advantage of the properties of the superconducting material to achieve very high quality factors (Q) of tens of thousands to over a million. The superconductor is patterned into a spiral design to achieve self-resonance at a desired frequency in the range of 1 to 1,000 MHz and the device operates at temperatures higher than 30 K. A broadband matching network is also disclosed which, when operated in conjunction with the superconducting magnetic resonance probe coil, allows operation over a wide range of frequencies while maintaining extremely low loss. 19 figs.
- Assignee:
- Conductus, Inc., Sunnyvale, CA (United States)
- Patent Number(s):
- A; US 5276398
- Application Number:
- PPN: US 7-929900
- OSTI ID:
- 6922445
- Country of Publication:
- United States
- Language:
- English
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