Birdcage resonator for magnetic resonance
First Claim
1. A resonator device for a magnetic resonance system, the resonator device comprising:
- a resonator body comprising a periodic arrangement of a plurality of cells about a central interior region, each cell comprising a dielectric substrate and thin-film conductors disposed on the dielectric substrate;
wherein the plurality of cells forms lateral faces of the resonator body, and the thin-film conductors in each respective cell form;
a leg element comprising an elongate leg element conductor, wherein the leg element extends in a longitudinal direction parallel to the largest dimension of the central interior region of the resonator body,a first ring element comprising a first elongate ring element conductor, wherein the first ring element extends perpendicular to the leg element, anda second ring element comprising a second elongate ring element conductor, wherein the second ring element extends perpendicular to the leg element,wherein the leg element extends from a central portion of the first ring element, along a center of the lateral face formed by the respective cell, to a central portion of the second ring element; and
the periodic arrangement of the plurality of cells defining a periodic network of inductive and capacitive elements adapted to produce a magnetic field in the central interior region.
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Abstract
In some aspects, a resonator device for magnetic resonance applications is described. In some examples, the resonator device includes a resonator body that includes a periodic arrangement of cells about a central interior region. Each cell includes a dielectric substrate and a conductor disposed on the dielectric substrate. The periodic arrangement of the cells defines a periodic network of inductive and capacitive elements adapted to produce a magnetic field in the central interior region. The cells can be arranged according to various topologies that form various capacitive and inductive schemes. In some implementations, a dielectric substrate and thin superconductor are used, and the resonator device exhibits a high quality factor (Q) and low losses.
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Citations
14 Claims
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1. A resonator device for a magnetic resonance system, the resonator device comprising:
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a resonator body comprising a periodic arrangement of a plurality of cells about a central interior region, each cell comprising a dielectric substrate and thin-film conductors disposed on the dielectric substrate; wherein the plurality of cells forms lateral faces of the resonator body, and the thin-film conductors in each respective cell form; a leg element comprising an elongate leg element conductor, wherein the leg element extends in a longitudinal direction parallel to the largest dimension of the central interior region of the resonator body, a first ring element comprising a first elongate ring element conductor, wherein the first ring element extends perpendicular to the leg element, and a second ring element comprising a second elongate ring element conductor, wherein the second ring element extends perpendicular to the leg element, wherein the leg element extends from a central portion of the first ring element, along a center of the lateral face formed by the respective cell, to a central portion of the second ring element; and the periodic arrangement of the plurality of cells defining a periodic network of inductive and capacitive elements adapted to produce a magnetic field in the central interior region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A manufacturing method for manufacturing a resonator device, the method comprising:
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receiving a plurality of cells, each cell comprising a dielectric substrate and thin-film conductors disposed on the dielectric substrate; and assembling the plurality of cells to form a substantially closed circumferential surface of a resonator body about a central interior region, the plurality of cells defining a periodic network of inductive and capacitive elements adapted to produce a magnetic field in the central interior region; wherein the plurality of cells forms lateral faces of the resonator body, and the thin-film conductors in each respective cell form; a leg element comprising an elongate leg element conductor, wherein the leg element extends in a longitudinal direction parallel to the largest dimension of the central interior region, a first ring element comprising a first elongate ring element conductor, wherein the first ring element extends perpendicular to the leg element, and a second ring element comprising a second elongate ring element conductor, wherein the second ring element extends perpendicular to the leg element, wherein the leg element extends from a central portion of the first ring element, along a center of the lateral face formed by the respective cell, to a central portion of the second ring element. - View Dependent Claims (13, 14)
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Specification