Radiation apertures for X-ray collimators
First Claim
1. A collimator comprising:
- an x-ray blocking surface comprising a one-piece plate defining an aperture formed therethrough, the aperture defining an aperture edge,wherein the aperture edge includes a first end portion including a first end of the aperture edge, a second end portion including a second end of the aperture edge, and a central portion including a center of the aperture edge, the central portion interposed between the first and second end portions, wherein the first end portion of the aperture edge corresponds to a first end portion of a detector, the second end portion of the aperture edge corresponds to a second end portion of the detector, and the central portion of the aperture edge corresponds to a central portion of the detector; and
wherein a profile of the aperture edge is discontinuous at a point between the first end of the aperture edge and the center of the aperture edge.
1 Assignment
0 Petitions
Accused Products
Abstract
A collimator includes an x-ray blocking surface including one or more generally flat plates defining an aperture edge. The aperture edge includes a first end portion including a first end of the aperture edge, a second end portion including a second end of the aperture edge, and a central portion including a center of the aperture edge. The first end portion of the aperture edge corresponds to a first end portion of a detector, the second end portion of the aperture edge corresponds to a second end portion of the detector, and the central portion of the aperture edge corresponds to a central portion of the detector. A profile of the aperture edge is discontinuous at a point between the first end of the aperture edge and the center of the aperture edge.
12 Citations
21 Claims
-
1. A collimator comprising:
-
an x-ray blocking surface comprising a one-piece plate defining an aperture formed therethrough, the aperture defining an aperture edge, wherein the aperture edge includes a first end portion including a first end of the aperture edge, a second end portion including a second end of the aperture edge, and a central portion including a center of the aperture edge, the central portion interposed between the first and second end portions, wherein the first end portion of the aperture edge corresponds to a first end portion of a detector, the second end portion of the aperture edge corresponds to a second end portion of the detector, and the central portion of the aperture edge corresponds to a central portion of the detector; and wherein a profile of the aperture edge is discontinuous at a point between the first end of the aperture edge and the center of the aperture edge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system comprising:
-
an x-ray source, the x-ray source providing an x-ray beam; a detector, the detector receiving a portion of the x-ray beam; and a collimator interposed between the detector and the x-ray source, the collimator comprising an x-ray blocking surface comprising a one-piece plate defining an aperture formed therethrough, the aperture defining an aperture edge, the x-ray blocking surface configured so that the one-piece plate prevents x-ray transmission and the aperture allows x-ray transmission therethrough, wherein a projection of the beam is projected proximate to the detector; wherein the aperture edge includes a first end portion including a first end of the aperture edge, a second end portion including a second end of the aperture edge, and a central portion including a center of the aperture edge, the central portion interposed between the first and second end portions, wherein the first end portion of the aperture edge corresponds to a first end portion of the detector, the second end portion of the aperture edge corresponds to a second end portion of the detector, and the central portion of the aperture edge corresponds to a central portion of the detector; and wherein a profile of the aperture edge is discontinuous at a point between the first end of the aperture edge and the center of the aperture edge. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
-
-
18. A system comprising:
-
an x-ray source, the x-ray source providing an x-ray beam; a detector, the detector receiving a portion of the x-ray beam; a collimator interposed between the detector and the x-ray source, the collimator comprising an x-ray blocking surface defining an aperture, the x-ray blocking surface comprising one or more generally flat plates defining an aperture edge of the aperture, the x-ray blocking surface configured so that the one or more generally flat plates prevent x-ray transmission and the aperture allows x-ray transmission therethrough, wherein a projection of the beam is projected proximate to the detector; wherein the aperture edge includes a first end portion including a first end of the aperture edge, a second end portion including a second end of the aperture edge, and a central portion including a center of the aperture edge, the central portion interposed between the first and second end portions, wherein the first end portion of the aperture edge corresponds to a first end portion of the detector, the second end portion of the aperture edge corresponds to a second end portion of the detector, and the central portion of the aperture edge corresponds to a central portion of the detector; and wherein the central portion of the aperture edge is configured to provide a first beam projection portion substantially conforming with a profile of the central portion of the detector, and the first end portion of the aperture edge is configured to provide a second beam projection portion substantially differing with a profile of the first end portion of the detector; and a processor configured to reconstruct an image using information provided by the detector, wherein information provided by the central portion of the detector is processed in a first manner including reconstruction of an image and information provided by the first end portion of the detector is processed in a second manner including tracking processing. - View Dependent Claims (19, 20, 21)
-
Specification