Abstract: A radiation imaging device suitable for SPECT or other nuclear imaging includes a detector (22) which receives radiation. A fan beam-slit collimator (20) is positioned adjacent a radiation receiving face (32) of the detector, intermediate the detector and a radiation source (12, 18). The collimator includes a plurality of slats (30) having a common focus. A body (44) adjacent the slats defines one or more elongate slits (46). The slit is arranged such that radiation passes through the slit and between the slats to the detector face. The body is at least substantially impermeable to the radiation. The fan beam-slit collimator (20) enables higher resolution or efficiency to be achieved from the detector.

Abstract: An anti-scatter device for suppressing scattered radiation is disclosed. The anti-scatter device comprises a plurality of x-ray absorbing layers. The anti-scatter device further comprises a plurality of spacer layers, such that each spacer layer is arranged between any two of the plurality of x-ray absorbing layers in order to hold each of the plurality of x-ray absorbing layers in a pre-defined orientation. Furthermore, each of the plurality of spacer layers comprises a plurality of unsealed voids to reduce the absorption of x-rays incident on at least a portion on each of the spacer layers.

Abstract: An anti-scatter grid (5) for an X-ray device, comprising a plurality of lead lamellae (51) focussed downward and a fixed grid-focus distance (202) and having a filler material (52) therebetween. The width of the lamellae (51) at the edges of the grid (5) is less than that at the centre of the grid (5), and/or the width of the filler material portions (52) is greater at the edges than at the centre of the grid (5). Thus, when the source-to-image distance (SID, 203) varies relative to the grid-focus distance (202), the transmission of the primary radiation beam at the edges of the grid (5) is not adversely affected.

Abstract: A radioscopy device is provided. The radioscopy device includes a detector grid; and a scattered radiation matrix. The detector grid is disposed relative to the scattered radiation matrix, which is substantially perpendicular to a direction in which the integral across both location-frequency coordinates of the Fourier transforms of the detector grid and the scattered radiation matrix is at a minimum.

Abstract: An x-ray absorption grid produced by a lithography method for use in a phase-contrast CT system has at least two individual grids arranged atop one another in the radiation direction. Each individual grid has a grid area with a grid structure including grid webs and grid gaps in alternation. Each individual grid has a region outside of the grid area (outer region). The outer region of the at least two individual grids has toothed structures corresponding to one another at least two points. The toothed structures are generated as well in the production of the grid structure. The toothed structures have a position that is defined relative to the grid structure, such that a defined alignment of the individual grids occurs given a combination of the individual grids by engagement of the toothed structures of individual grids lying atop one another.

Abstract: A secondary collimator for an X-ray scattering device with horizontal plates and vertical plates arranged perpendicular thereto, the vertical plates being arranged parallel to one another and being inclined by a pre-determinable scattering angle to a transmission direction of an X-ray beam, and the horizontal plates being aligned fan-shaped onto a single point, namely to the X-ray source, and the horizontal plates with the vertical plates forming a rectangular grid with the vertical plates and being combined to form a collimator unit. Moreover, the invention relates to an X-ray scattering device for baggage check with an X-ray source, with a primary collimator which only lets through a fan beam, with a secondary collimator for projecting an area of an item of luggage and with a scattering detector, the secondary collimator being arranged between the item of luggage to be examined and the scattering detector and being developed as mentioned above.

Abstract: Certain exemplary embodiments of the present invention comprise a cast collimator descended from a stack lamination mold, said mold comprising a plurality of metallic foils. Certain embodiments of the present invention comprise a method comprising filling a mold having a stacked plurality of micro-machined metallic foil layers with a first casting material to form a first cast product; demolding the first cast product from the mold; filling the first cast product with a second casting material to form a cast collimator; and demolding the cast collimator from the first cast product. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. This abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: In a diagnostic X-ray system having a scattered radiation grid driven via a wobble bearing, restoring forces generated via the wobble bearing and hence the vibration on the diagnostic X-ray system are minimized while simultaneously requiring a minimal space. A plate-like compensatory mass disposed parallel to the scattered radiation grid is provided, which during operation executes a linear motion that is contrary to the linear motion of the scattered radiation grid.

Abstract: A mobile dual-energy X-ray imaging system is presented. The mobile dual-energy X-ray imaging system is a digital X-ray system that is designed both to acquire original image data and to process the image data to produce an image for viewing. The system has an X-ray source and a portable flat-panel digital X-ray detector. The system is operable to produce a high energy image and low energy image, which may be decomposed to produce a soft tissue image and a bone image for further analysis of the desired anatomy. The system is disposed on a carrier to facilitate transport. The imaging system has an alignment system for facilitating alignment of the flat-panel digital detector with the X-ray source. The imaging system also comprises an anti-scatter grid and an anti-scatter grid registration system for removing artifacts of the anti-scatter grid from images.

Abstract: An anti-scatter grid for radiology imaging having an anti-scatter layer with a plurality of metallized partitions that enable X-rays emitted from a source located above the grid to pass and absorbing X-rays not derived directly from this source. The grid has at least one plate of expanded polymer material fixed on one surface of anti-scatter layer. The grid may be positioned with a frame.

Abstract: An X-ray collimator for collimating X-rays from an X-ray source that illuminate an array of columns and rows of X-ray detectors, the collimator having a first side that faces the X-ray source and a second side opposite the first side that faces the detector array, the collimator comprising: a plurality of strips formed from an X-ray absorbing material, wherein each strip is corrugated so that it has rectangular and/or square corrugations; and means for maintaining the plurality of strips one next to the other with the corrugations of one strip aligned with corrugations of an adjacent strip to form an array of rows and columns of square/and or rectangular wells corresponding to the X-ray detectors in the array.

Abstract: Certain exemplary embodiments of the present invention comprise a device comprising a cast collimator derived from a metallic foil stack lamination mold, said collimator defining a feature adapted to contain a plurality of radiation detection elements. In certain embodiments, the collimator can define a feature adapted to contain a plurality of radiation detection elements, such as scintillators. Certain exemplary embodiments of the present invention comprise a device comprising a cast component derived from a metallic foil stack lamination mold. In various exemplary embodiments, the cast components can be a mechanical, electrical, electronic, optical, fluidic, biomedical, and/or biotechnological component. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

Abstract: An illumination system for scannertype microlithography along a scanning direction with a light source emitting a wavelength especially ?193 nm. The illumination system includes a plurality of raster elements. The plurality of raster elements is imaged into an image plane of the illumination system to produce a plurality of images being partially superimposed on a field in the image plane. The field defines a non-rectangular intensity profile in the scanning direction.

Abstract: X-ray detector arrangement comprising a detector and an anti-scatter grid, the anti-scatter grid being arranged to guide the x-rays in a desired way, the arrangement further comprising a flat box having two flat surfaces spaced from a distance to each other, and edge elements by which the flat surfaces are connected to each other, the anti-scatter grid being integrated to one flat surface of the flat box, and the flat box being provided with a slot at least on one edge of the box to enable insertion of the detector between the two flat surfaces of the box.

Abstract: An antiscatter grid arrangement for absorbing scattered radiation is provided. The arrangement includes a series of grid elements, including a first grid element attached to a second grid element. Each first and second grid element includes a lamella of high radiation attenuation located between a first and a second interspace band of low radiation attenuation. The arrangement also includes a fixed connection between one of the first and second interspace bands of the first grid element to one of the first and second interspace bands of the second grid element.

Abstract: An antiscattering grid for an X-ray imaging apparatus of the type comprising a substrate having a plurality of metallized partitions that together define a plurality of cells distributed over the substrate. The partitions allow passage of the X-rays emitted from a source lying in line with the grid, and absorbing the X-rays not coming directly from this source. The substrate is made of a polymer material that may be formed by radiation curing of a monomer sensitive to this radiation. The substrate may be substantially planar and the partitions may be oriented to form a focused grid.

Abstract: Various configurations for scatter reduction and control are provided for CT imaging. These configurations include an imaging system having a stationary detector extending generally around a portion of an imaging volume and a distributed X-ray source placed proximal to the stationary detector for radiating an X-ray beam toward the stationary detector. A scatter control system is further provided that is configured to adaptively operate in cooperation with the stationary detector and the distributed X-ray source to focally align collimator septa contained therein to the X-ray beam at a given focal point and to provide X-ray beam scatter control.

Abstract: A two dimensional (2D) collimator assembly and a detector system employing a 2D collimator assembly. More specifically, a collimator assembly is provided, having elements extending in the x and z-planes of a detector system. The 2D collimator assembly includes a number of blades arranged in parallel. Each of the blades includes fins extending from one or both sides of the body of the blade. The fins are coupled to each adjacent array to form the 2D collimator assembly.

Abstract: Methods and apparatus for generating an x-ray image. An object is interposed between a detector and an x-ray source. A grid is interposed between the x-ray source and the object. The grid is exposed to primary x-ray energy generated by the x-ray source, thereby exposing the object to a first portion of the primary energy via the interstices of the grid. A second portion of the primary energy is received with first areas of the detector corresponding to the interstices of the grid. Secondary x-ray energy is received with the first areas of the detector and with second areas of the detector corresponding to the elements of the grid. The secondary energy results from scattering of the primary x-ray energy. Image data are generated by altering data from the first areas with reference to data from the second areas.

Abstract: An antiscattering grid for a radiation imaging apparatus is disclosed. The antiscattering grid having a plurality of strips substantially absorbing X-rays and separated from each other by inter-strip spaces substantially transparent to the X-rays. The dimensions of apertures separating two successive strips among the plurality of strips is not constant.

Abstract: A method for improving resolution of X-ray radiography systems of the type used to obtain images of internal features of human bodies or to view contents of luggage articles, cargo containers and the like comprises positioning a plurality of baffle plates between the rear surface of an X-ray radiation detector array and a back stop used to limit transmitted X-ray radiation to a safe level. The baffle plates are made of a high atomic-number metal such as iron or lead which reduces by absorption, scattering or other attenuating processes the intensity of X-ray radiation back scattered from the back-stop onto the detector array, thus reducing noise contributions to signals output from detector elements of the array and thereby improving the quality of radiographic images formed from detector output signals.

Abstract: A mammographic imaging system is optimized for use with a single fixed size flat panel digital image receptor. It accommodates compression devices (paddles) of varying sizes, and positions them properly in the field of view of the image receptor. When a compression paddle with size smaller than the field of view of the image receptor is used, the compression paddle can be shifted laterally in the direction parallel to the chest wall, so as to facilitate different views of different size breasts, and permit the image receptor to image as much of the desired tissue as possible. An automatic x-ray collimator restricts the x-ray illumination of the breast in accordance with compression paddle size and location in the field of view. An anti-scatter grid, mounted inside the image receptor enclosure, just below the top cover of the enclosure, can be retracted out of the field of view of the image receptor for use in magnification imaging.

Abstract: Scatter effects are reduced in a radiographic imaging device, such as a digital slot scan mammographic imaging device, by reducing detected scatter and processing detector information to compensate for scatter effects. A digital mammographic imaging system (10) may include a source (24) for transmitting a narrow beam (28) and a detector assembly (32) for detecting the beam (28). The beam (28) and the detector assembly (32) may synchronously scann across the patient's breast (48) to obtain an image. Collimator slats (74) at the leading and trailing edges of the detector may reduce detected scatter. Attenuators (76 and 92) at the ends of the scanned motion and at the anterior edge of the detector array may assist in determining a spatial intensity profile. The spatial intensity profile information together with other imaging signal and patient dependent parameters may be used to estimate and compensate for various scatter effects.

Abstract: Grids and collimators, for use with electromagnetic energy emitting devices, include at least a metal layer that is formed, for example, by electroplating/electroforming or casting. The metal layer includes top and bottom surfaces, and a plurality of solid integrated walls. Each of the solid integrated walls extends from the top to bottom surface and has a plurality of side surfaces. The side surfaces of the solid integrated walls are arranged to define a plurality of openings extending entirely through the layer. At least some of the walls also can include projections extending into the respective openings formed by the walls.

Abstract: An x-ray receiver for an x-ray apparatus is disclosed. In at least one embodiment, the x-ray receiver includes a detector holding apparatus designed such that it can be connected to a detector for receiving x-rays. The x-ray receiver also includes an x-ray grid, connected to the detector holding apparatus, for reducing scattered x-rays, which is designed and arranged to attenuate scattered x-rays with at least one predetermined directional component parallel to a detector plane. In at least one embodiment, the x-ray receiver includes at least one sensor for detecting x-rays that is designed and arranged to detect x-rays striking the detector and, as a function of the detected x-rays, to generate an irradiation signal that represents an x-ray dose or x-ray intensity of the detected x-rays.

Abstract: A CT scanner comprising a stator and a rotor having an axis of rotation mounted to the stator so that the rotor is rotatable about the axis of rotation comprising: an X-ray source mounted to the rotor, said X-ray source having a focal spot from which X-rays emanate; an X-ray detector array comprising a matrix of rows and columns of X-ray detectors; anti-scattering (AS) material for absorbing X-rays positioned between columns of the X-ray detectors; and anti-scattering (AS) material for absorbing X-rays positioned between rows of the X-ray detectors, whereby the AS material is located between every other row and/or column of detectors, respectively. Furthermore, the thickness and/or height of the foils between rows may be different from the thickness and/or height of the foils between columns.

Abstract: A scattered radiation grid for absorbing secondary radiation scattered by an object comprises a support, and a plurality of spaced-apart absorbing elements affixed to the support. The plurality of absorbing elements comprises relatively small tubes or pins affixed to the support via plug-in or clamping fixtures.

Abstract: An apparatus for spatial modulation of an x-ray beam has a number of planar attenuation elements for x-ray radiation that are disposed in a grid on a carrier and can be pivoted or tilted by a piezoelectric actuator, independently of one another, between at least two positions. One or more sensors with which a piezoelectrically-caused length and/or width and/or position change of the piezoelectrically influenced regions can be detected, are arranged on piezoelectrically influenced regions of the attenuation elements or the actuators. A significant dose reduction and/or dynamic adjustment thereof can be achieved with the apparatus by image adaptation in many areas of x-ray imaging, since a precise determination of the position of each attenuation element in real time is enabled.

Abstract: A device for the adjustment of the anti-scattering grid (G) of a radiological equipment to the different focal lengths that said equipment can provide includes a pair of pressing members (P) mobile in the direction transverse with respect to the plane of the grid (G), which is arranged and restrained between said pressing members (P) and a pair of corresponding underlying contrast members (C), the convex/concave profile of each pair of members (P, C) being obtained as locus of the local deformations, calculated point by point with a suitable spatial resolution, necessary to adjust the orientation of the segments of the grid (G) when going from one reference focal length to a second focal length.

Abstract: The invention relates to an anti-scatter grid for the absorption of X-rays, wherein the wall elements (3) of the grid consist of a thermoplastic (7) with heavy metal particles (8) embedded therein. By using such a mixture, it is possible to produce the wall elements by injection molding, whereby even very finely and complicatedly shaped, in particular two-dimensional, grids may be produced in cost-effective manner.

Abstract: A radiation image taking apparatus includes a case that contains a radiation detecting unit that has a detection surface in which a photoelectric conversion element that detects a radiation transmitted through an object is located, a grid unit which is detachably attachable to an outside of the case and removes a scattered radiation, and a photo timer unit which is detachably attachable to the outside of the case and measures a dose of the radiation. One of a first mode in which the grid unit is attached to the case, a second mode in which the photo timer unit is attached to the case, and a third mode in which the grid unit is attached to the second mode can be freely used in configuration.

Abstract: The present invention is directed to scintillator module for a CT detector as well as an apparatus and method of manufacturing the same. The scintillator module is comprised of a scintillator array having a plurality of scintillators aligned in parallel with respect to one another. A collimator assembly includes a comb having a number of teeth and a plurality of collimator plates positioned proximate to the scintillator array. The scintillator array includes at least one indexing pin extending therefrom. The indexing pin engages the comb and is constructed to improve alignment of the scintillator array relative to the collimator plates.

Abstract: The present invention is a directed to a CT detector for a CT imaging system that incorporates a segmented optical coupler between a photodiode array and a scintillator array. The segmented optical coupler also operates as a light collimator which improves the light collection efficiency of the photodiode array. The segmented optical coupler is defined by a series of reflector elements that collectively form a plurality of open cells. The open cells form light transmission cavities and facilitate the collimation of light from a scintillator to a photodiode. The cavities may be filled with optical epoxy for sealing to the photodiode array.

Abstract: Method for compensating for image faults in a digital image recording which has been created by an x-ray system consisting of a radiographic source, an anti-scatter grid and a digital x-ray detector such as an image amplifier or a solid-state image detector, said image faults resulting from decentering, defocusing or defects in the anti-scatter grid or by the Heel effect and causing an intensity reduction of the primary radiation falling on the x-ray detector, characterized in that the actual reduction in intensity is measured through the anti-scatter grid and correction parameters are determined based on the measured values recorded which are then used to correct the x-ray image recording.

Abstract: A detector assembly is provided comprising a collimator assembly. The collimator assembly comprises a first collimator segment having a first left end and a first right end. The first collimator segment includes a plurality of first segment longitudinal walls having a first segment depth. Each of the plurality of first segment longitudinal walls includes a first interlocking protrusion comprising only a portion of the first segment depth. The collimator assembly also includes a second collimator segment having a second left end and a second right end. The second collimator segment comprises a plurality of second segment longitudinal walls having a second segment depth. Each of the plurality of second segment longitudinal walls includes a second interlocking protrusion comprising only a portion of the second segment depth. Each of the second interlocking protrusions engages one of the first interlocking protrusions to form a continuous sidewall segment.

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.

Abstract: The disclosure is made for an apparatus for processing a radiation image of an object obtained by radiography using a grid which is used to remove scattered radiation from the object. The apparatus includes generation means for generating image components due to the grid on the basis of data of the radiation image, to remove the image components due to the grid from the radiation image.

Abstract: Certain exemplary embodiments comprise a device comprising a cast collimator derived from a metallic foil stack lamination mold, said collimaxor defining a feature adapted to contain a plurality of radiation detection elements. In certain embodiments, the collimator can define a feature adapted to contain a plurality of radiation detection elements, such as scintillators. Certain exemplary embodiments comprise a device comprising a cast component derived from a metallic foil stack lamination mold. In various exemplary embodiments, the cast components can be a mechanical, electrical, electronic, optical, fluidic, biomedical, and/or biotechnological component.

Abstract: The invention relates to a grid holder for an X-ray diagnostic system. The grid holder cooperates with a flexible X-ray grid, which in a flat state has a first focus distance/convergence distance of about 120 cm. A flexing means, preferably in the form of an inflatable element, which can exert a pressure on the surface of the grid, is arranged to flex the grid in a first direction to a first position in which it has a second convergence distance of about 180 cm. Another corresponding flexing means is arranged to flex the grid in the opposite direction to a second position in which it has a third convergence distance of about 80 cm. This allows variable convergence distances with minimum flexing of the grid. The invention also relates to grid devices with grid holders and grids as well as X-ray diagnostic systems comprising such grid holders/grid devices.

Abstract: An apparatus for radiation image recording includes a radiation receiver to which radiation can be applied and which converts the incident radiation to an electrical charge which represents a measure of the incident radiation and which can be read line-by-line via a reading device. It further includes a scattered beam grid, which is associated with the radiation receiver and which includes absorption elements which run in straight lines. The absorption elements are arranged at an angle to the line-by-line reading direction.

Abstract: A method is for the compensation of image disturbances in the course of a radiation image recording caused by a defocusing of an antiscatter grid, arranged in the beam path between a beam source and a digital radiation image receiver and focused with respect to a specific distance from the focus of the beam source. Such image disturbances are caused by a defocusing-dictated attenuation of the primary radiation incident on the radiation image receiver. A solid-state image detector includes radiation-sensitive pixels arranged in matrix form and a device for pixelwise amplification of the radiation-dependent signals. In the method, at least some of the signals supplied in pixelwise fashion are amplified by an amplifying device in a manner dependent on the actual distance of the antiscatter grid from the focus.

Abstract: A method for manufacturing an anti-scatter grid including arranging a plurality of elongated metal ribbons of radio-opaque material so that each ribbon is substantially straight and lies in a plane that passes through a focal point of the grid, and placing the elongated ribbons under tension. A first sheet of radioluscent material is secured to top edges of the ribbons, and a second sheet of radioluscent material is secured to bottom edges of the ribbons. The ribbons are arranged such that the first and second radioluscent sheets are substantially parallel. Then the tension is removed from the ribbons.

Abstract: A method for separating and filtering noise caused by X-ray scatter contaminations from the primary signal component of the signal produced by the detector assembly of a radiographic imaging device employs a scatter removal screen or grating disposed between the object being imaged and the detector assembly. The grating has an absorption that varies periodically for varying the intensity of the X-ray radiation passed through the grating. This variation in intensity of the X-ray radiation causes the signal produced by the detector assembly to be amplitude modulated so that the frequency of the primary signal component is shifted from noise components of the signal caused by X-ray scatter contamination allowing the noise components to be filtered from the primary signal component so that scatter induced noise may be reduced or eliminated from the signal.

Abstract: A radiation imaging device includes a radiation source which rotates around a subject to be examined and irradiates the subject with radiation, a two-dimensional detector in which a plurality of detection elements for detecting radiation from the radiation source are two-dimensionally arranged, and a grid which is placed in front of the two-dimensional detector to remove scattered radiation of the radiation. This device performs computation with respect to a subject image obtained by the two-dimensional detector by using the subject image and a gain image obtained by the two-dimensional detector, and executes removal of a grid pattern due to the grid and gain correction. The device reconstructs an image on the basis of the subject image obtained using the subject image from which a grid pattern due to the grid is removed and which is gain-corrected.

Abstract: Grids and collimators, for use with electromagnetic energy emitting devices, include at least a metal layer that is formed, for example, by electroplating/electroforming or casting. The metal layer includes top and bottom surfaces, and a plurality of solid integrated walls. Each of the solid integrated walls extends from the top to bottom surface and has a plurality of side surfaces. The side surfaces of the solid integrated walls are arranged to define a plurality of openings extending entirely through the layer. At least some of the walls also can include projections extending into the respective openings formed by the walls.

Abstract: A method is for producing an antiscatter grid or collimator for a radiation type, which is formed from a base body of predeterminable geometry having transmission channels for primary radiation of the radiation type which extend between two opposite surfaces of the base body. In the method, the base body is constructed by use of a rapid prototyping technique by layer-wise solidification of a structural material, which is substantially transmissive to the radiation type, under the action of radiation. Inner surfaces of the base body in the transmission channels are coated with a material, which strongly absorbs the radiation type, up to a layer thickness which suffices to virtually completely absorb incident secondary radiation of the radiation type. The opposite surfaces of the base body are not coated, or are aftertreated in such a way that they do not bear a coating or bear a coating of greatly reduced layer thickness made from the material strongly absorbing the radiation type.

Abstract: A housing for accommodating a radiation detecting member, has a first plate member to which radiation is incident from an outside of the housing; a second plate member arranged opposite to the first plate member; a radiation detecting member provided between the first plate member and the second plate member and having a radiation receiving surface to detect the radiation having passed through the first plate member; and a scattering radiation shielding member arranged at a radiation receiving surface side of the radiation detecting member and to eliminate scattering radiation from the radiation before the radiation is detected by the radiation receiving surface.

Abstract: An antiscatter device, such as a grid or collimator, is for absorption of secondary radiation which is scattered by an object. The antiscatter device includes an absorption structure with a plurality of elements. Two or more elements form a cell-like structure with a beam channel for primary radiation. Further, the elements and thus the cell-like structures are arranged and/or formed such that the absorption structure has a non-regular, aperiodic pattern.

Abstract: A radiographic apparatus capable of detecting radiation in a stable manner and in an amount suitable for a good image includes AEC detectors arranged in a stripe pattern in the space between pixels converting incident radiation into an electrical signal. The stripes of the AEC detectors are arranged so as not to be parallel to those stripes of an anti-scattering grid.

Abstract: A method for producing a scattered radiation grid or collimator which, for an incident radiation type, has transmissive regions and nontransmissive regions of predeterminable geometry. First the geometry of the transmissive and the nontransmissive regions of the scattered radiation grid or collimator is set. On the basis of this geometry, a base body is constructed according to the geometry, optionally differing by a particular layer thickness, of the transmissive regions or the nontransmissive regions by a rapid prototyping technique through layer-wise solidification of a structural material under the action of radiation. On the basis of this base body, the scattered radiation grid or collimator is finally completed.