Planar NMR coils with localized field-generating and capacitive elements
US6556013B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 9, 2001 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Mar 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/34092
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Improved superconducting coils for a nuclear magnetic resonance probe use capacitive elements that are located in regions further from an active sample volume than magnetic field generating elements to which they are electrically connected. The sample volume is a substantially oblong shape, and the magnetic field generating elements run substantially parallel to the major axis of the shape, while the capacitor elements run perpendicular to the major axis. The magnetic field generating elements and the capacitor elements may vary in length relative to their distance from a center of the oblong shape. The total number of capacitors formed by the loops may vary from one embodiment to another, typically depending on the necessary resonant frequency. A coil may use sub-coils, each of which incorporates a plurality of the magnetic field generating elements and interdigital capacitor elements, the capacitor elements preferably being located to both sides of the oblong shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.