Rf coil assembly
AssigneeOxford Instruments (UK) Limited
InventorRobert Andrew Slade
Life of this patent
Estimating the term…
Abstract
An rf coil assembly for use in an NMR investigation, the assembly comprising (1) a transmitter coil (10) adapted to transmit an rf magnetic field suitable for the NMR investigation into a working region and comprising a plurality of serially connected winding elements (1-4); and (2) a receiver coil (9) electrically separate from the transmitter coil and adapted to receive an rf signal from the working region and comprising a plurality of serially connected winding elements (5-9). Winding elements of one coil are interleaved and substantially coaxial with winding elements of the other coil, and at least one of the coils comprises one or more winding elements which are counter-wound with respect to the other winding element(s) in the coil.
Claims17
An rf coil assembly for use in an NMR investigation, said assembly comprising:
- (1) a transmitter coil adapted to transmit an rf magnetic field suitable for the NMR investigation into a working region and comprising a plurality of serially connected winding elements;
- and
- (2) a receiver coil electrically separate from said transmitter coil and adapted to receive an rf signal from said working region and comprising a plurality of serially connected winding elements,
- wherein winding elements of one coil are interleaved and substantially coaxial with winding elements of the other coil, and wherein one of said coils comprises one or more winding elements which are counter-wound with respect to at least one of the winding elements of said other coil.
NMR investigation apparatus comprising an rf coil assembly;
- and a magnet assembly adapted to generate a permanent magnetic field within a working region being suitable for obtaining NMR information from material in said working region, wherein said rf coil assembly comprises:
- (1) a transmitter coil adapted to transmit an rf magnetic field suitable for the NMR investigation into a working region and comprising a plurality of serially connected winding elements;
- and
- (2) a receiver coil electrically separate from said transmitter coil and adapted to receive an rf signal from said working region and comprising a plurality of serially connected winding elements,
- wherein winding elements of one coil are interleaved and substantially coaxial with winding elements of the other coil, and wherein one of said coils comprises one or more winding elements which are counter-wound with respect to at least one of the winding elements of said other coil.
An rf coil assembly for use in an NMR investigation, said assembly comprising:
- (1) a transmitter coil adapted to transmit an rf magnetic field suitable for the NMR investigation into a working region and comprising a plurality of serially connected winding elements;
- and
- (2) a receiver coil electrically separate from said transmitter coil and adapted to receive an rf signal from said working region and comprising a plurality of serially connected winding elements;
- wherein a winding element of one coil is sandwiched between and substantially coaxial with a pair of winding elements of the other coil, and wherein one of said coils comprises at least one winding element which is wound in a direction opposite to the direction in which at least one of the winding elements of said other coil is wound.
Dependencies are inferred from the claim text.