NMR radio frequecny field coil with distributed current
US4783641A · kind A · utility
29Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Aug 13, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/341
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A uniform surface current density is approximated in an RF transmitting/receiving NMR coil by employing a plurality of discrete conductors having a resonantly distributed current. Inductive and capacitive lines provide a sinusoidal current distribution with various resonant modes providing different magnetic field orientations. The distributed current reduces losses. In a second order resonant mode, decoupling of the surface coil from a transmit coil is achieved without a blocking network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.