Method for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector
First Claim
1. A method for producing and applying at least one of an antiscatter grid and collimator to at least one of an x-ray and gamma detector having an array of detector elements which form a detector sufface with detection regions sensitive to at least one of x-radiation and gamma radiation and less sensitive intermediate regions, comprising:
- producing a basic structure through layer-wise solidification by using a rapid prototyping technique to form transmission channels and intermediate walls of at least one of the antiscatter grid and collimator, including at least in a first direction a center-to-center spacing at least one of equal to and an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector;
coating the intermediate walls with a material which strongly absorbs at least one of x-radiation and gamma radiation; and
applying at least one of the antiscatter grid and collimator to the detector surface and connecting at least one of the antiscatter grid and collimator to the detector surface in such a way that at least one of the intermediate walls running perpendicular to the first direction and their coating, are situated over relatively less sensitive intermediate regions of the detector surface.
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Accused Products
Abstract
A method is for producing and applying an antiscatter grid or collimator to an x-ray or gamma detector having matricially arranged detector elements which form a detector surface with detection regions sensitive to x-radiation and/or gamma radiation and less sensitive intermediate regions. In the method, a basic structure is firstly produced for the antiscatter grid or collimator by way of a rapid prototyping technique, through which transmission channels and intermediate walls of the antiscatter grid or collimator are formed which have at least in a first direction a center-to-center spacing which is equal to or an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector. The intermediate walls are coated with a material which strongly absorbs x-radiation and/or gamma radiation in order to finish the antiscatter grid or collimator. Subsequently, the antiscatter grid or collimator is applied to the detector surface and connected to the detector surface in such a way that at least the intermediate walls running perpendicular to the first direction, or their coating, are situated over the less sensitive intermediate regions of the detector surface. A detector having an antiscatter grid or collimator in which no moiré interference occurs can thus be realized in a simple way.
34 Citations
34 Claims
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1. A method for producing and applying at least one of an antiscatter grid and collimator to at least one of an x-ray and gamma detector having an array of detector elements which form a detector sufface with detection regions sensitive to at least one of x-radiation and gamma radiation and less sensitive intermediate regions, comprising:
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producing a basic structure through layer-wise solidification by using a rapid prototyping technique to form transmission channels and intermediate walls of at least one of the antiscatter grid and collimator, including at least in a first direction a center-to-center spacing at least one of equal to and an integral multiple of a center-to-center spacing of the sensitive detection regions of the detector; coating the intermediate walls with a material which strongly absorbs at least one of x-radiation and gamma radiation; and applying at least one of the antiscatter grid and collimator to the detector surface and connecting at least one of the antiscatter grid and collimator to the detector surface in such a way that at least one of the intermediate walls running perpendicular to the first direction and their coating, are situated over relatively less sensitive intermediate regions of the detector surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A method for producing and applying at least one of an antiscatter grid and collimator to at least one of an x-ray and gamma detector, comprising:
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forming transmission channels and intermediate walls of at least one of the antiscatter grid and collimator through layer-wise solidification using a rapid prototyping technique, including at least in a first direction, a center-to-center spacing at least an integral multiple of a center-to-center spacing of sensitive detection regions of the detector; coating the intermediate walls with a material which strongly absorbs at least one of x-radiation and gamma radiation; and applying the at least one of the antiscatter grid and collimator to the detector surface and connecting the at least one of the antiscatter grid and collimator to the detector surface in such a way that at least one of the intermediate walls running perpendicular to the first direction and their coating, are situated over relatively less sensitive intermediate regions of the detector surface. - View Dependent Claims (32, 33, 34)
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Specification