Detector array with pre-focused anti-scatter grid
AssigneeKoninklijke Philips N. V.
InventorsRandall P. Luhta, Rodney A. Mattson, Brian E. Harwood
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Abstract
A radiation sensitive detector array includes a plurality of detector modules (118) extending along a z-axis direction and aligned along an x-axis direction with respect to the imaging system (100). At least one of the detector modules (118) includes a module backbone (124) and at least one detector tile (122). The at least one detector tile (122) is coupled to the module backbone (124) through a non-threaded fastener (142). The at least one detector tile (122) includes a two-dimensional detector (126) and a two-dimensional anti-scatter grid (128) that is focused at a focal spot (112) of an imaging system (100).
Claims19
A radiation sensitive detector array, comprising:
- a plurality of detector modules extending along a z-axis direction and aligned along an x-axis direction with respect to the imaging system, at least one of the detector modules, including
- a module backbone;
- and
- at least one detector tile coupled to the module backbone through a non-threaded fastener, the at least one detector tile including a two-dimensional detector and a two-dimensional anti-scatter grid that is focused at a focal spot of an imaging system
- wherein the two-dimensional detector at least includes a base layer, the base layer including:
- first and second sub-members, wherein the first of the sub-members is coupled to the module backbone through a threaded fastener and the second of the sub-members is part of the tile, the first and the second sub-members respectively include first and second non-planar surfaces that are coupled through a second non-threaded fastener.
A detector array of an imaging system having a focal spot, comprising:
- a plurality of detector modules aligned along a transverse direction with respect to the imaging system, at least one of the detector modules including a detector tile, wherein the detector tile includes a two-dimensional anti-scatter grid that is focused with respect to a focal spot of the imaging system before installing the at least one detector module in the imaging system, wherein the tile includes a plurality of stacked layers, which include a detector base, including at least two non-planar sub-members coupled together through an adhesive.
A method for focusing an anti-scatter grid of a detector tile with a focal spot of an imaging system prior to installing the detector tile in the imaging system, comprising:
- inserting at least one two-dimensional anti-scatter grid in a guide region of an alignment apparatus, the guide region, including one or more fiducials that guide the at least one two-dimensional anti-scatter grid in the guide region, wherein the guide region is pre-aligned with the focal spot, and guiding the at least one two-dimensional anti-scatter grid into the guide region focuses the at least one two-dimensional anti-scatter grid with the focal spot, wherein the anti-scatter grid is part of a detector tile that is inserted in the receiving region, the detector tile includes a base region with first and second non-planar sub-regions, the first non-planar sub-region is affixed to the tile;
- and
- coupling the first and second non-planar sub-regions together after the second non-planar sub-region is coupled to a module backbone installed in the imaging system.
Dependencies are inferred from the claim text.