Optical device for directing x-rays having a plurality of optical crystals
First Claim
1. An optical device for directing x-rays, the optical device comprising:
- a plurality of curved optical crystals, each with at least one lattice plane, positioned according to an x-ray source and an x-ray target to define at least one Rowland circle of radius R and a source-to-target line;
wherein the optical device provides focusing of x-rays from the source to the target;
wherein the plurality of curved optical crystals have a radius at the plane of the Rowland circle different than R; and
wherein an angle of at least one lattice plane of a first crystal of the plurality of curved optical crystals relative to a surface of the first crystal is different from an angle of at least one lattice plane of a second crystal of the plurality of curved optical crystals relative to surface of the least one second crystal.
2 Assignments
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Accused Products
Abstract
Devices for improving the capturing and utilization of high-energy electromagnetic radiation, for example, x-rays, gamma rays, and neutrons, for use in physical, medical, and industrial analysis and control applications are disclosed. The devices include optics having a plurality of optical crystals, for example, doubly-curved silicon or germanium crystals, arranged to optimize the capture and redirection of divergent radiation via Bragg diffraction. In one aspect, a plurality of optic crystals having varying atomic diffraction plane orientations are used to capture and focus divergent x-rays upon a target. In another aspect, a two- or three-dimensional matrix of crystals is positioned relative to an x-ray source to capture and focus divergent x-rays in three dimensions.
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Citations
27 Claims
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1. An optical device for directing x-rays, the optical device comprising:
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a plurality of curved optical crystals, each with at least one lattice plane, positioned according to an x-ray source and an x-ray target to define at least one Rowland circle of radius R and a source-to-target line; wherein the optical device provides focusing of x-rays from the source to the target; wherein the plurality of curved optical crystals have a radius at the plane of the Rowland circle different than R; and wherein an angle of at least one lattice plane of a first crystal of the plurality of curved optical crystals relative to a surface of the first crystal is different from an angle of at least one lattice plane of a second crystal of the plurality of curved optical crystals relative to surface of the least one second crystal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for directing x-rays, comprising:
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providing an optical device, the optical device comprising a plurality of curved optical crystals, each with at least one lattice plane, arranged in a matrix, the matrix being positionable to define at least one Rowland circle of radius R with an x-ray source and an x-ray target, and wherein the matrix comprises a plurality of rows, with each row comprising multiple optical crystals of said plurality of optical crystals, wherein the plurality of curved optical crystals have a radius at the plane of the Rowland circle different than R; and positioning the optical device wherein at least some x-rays from the x-ray source are directed to the x-ray target; wherein an angle of at least one lattice plane of a first crystal of the plurality of curved optical crystals relative to a surface of the first crystal is different from an angle of at least one lattice plane of a second crystal of the plurality of curved optical crystals relative to a surface of the at least one second crystal. - View Dependent Claims (19, 20)
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- 21. A device for directing x-rays, comprising a first curved crystal and at least one second curved crystal spaced from the first crystal, the first and at least one second curved crystal each comprising at least one lattice plane, and the first curved crystal and the at least one second curved crystal being positionable to define at least one Rowland circle of radius R with an x-ray source and an x-ray target, wherein at least some x-rays impinging upon the first curved crystal and the at least one second curved crystal are directed to the target, and wherein an angle of the at least one lattice plane of the first crystal relative to a surface of the first crystal is different from an angle of the at least one lattice plane of the at least one second crystal relative to a surface of the at least one second crystal.
Specification