Device for receiving a beam path component for X-ray radiation

Abstract

The invention relates to a device for receiving a beam path component for X-ray radiation, - wherein the device comprises a base plate and a sheet metal part, - wherein a passage opening for the X-rays passes through the base plate, - wherein the sheet metal part has a base and a screen, wherein the base extends planarly in a base plane of the sheet metal part, wherein the sheet metal part is curved such that the screen extends planarly away from the base plane of the sheet metal part, - wherein the sheet metal part is fixed relative to the base plate by pressing the base and the base plate against each other in such a way that the screen shields an area of ​​the vicinity of the base plate from scattered X-rays coming from an edge area of ​​the through-hole and directed towards the area of ​​the vicinity of the base plate.

Description

[0001] The invention relates to a device for receiving a beam path component for X-ray radiation. The invention further relates to an X-ray source system for providing X-ray radiation, a medical imaging device, and a method for producing a device for receiving a beam path component for X-ray radiation.

[0002] In computed tomography scanners, beam path components can be used for collimation, offset compensation, and / or filtering, for example, particularly to improve image quality and / or reduce X-ray dose. In conventional computed tomography scanners, the radiation apertures are typically either technically complex and correspondingly expensive, or, particularly in low-power computed tomography scanners, their functionality is significantly limited to save costs, so that, for example, no movable mounting of the beam path component and / or no adjustment of the collimation is possible. In any case, it is important to shield the surrounding area from scattered X-rays.

[0003] DE 10 2020 214 314 B3 discloses a device for receiving a beam path component for X-rays. Further prior art documents include DE 20 2022 107 221 U1, CN 1 12 295 113 A, and US Pat. No. 9,230,701 B2.

[0004] The invention aims to provide an alternative to conventional radiation shielding in the area of ​​X-ray beam path components. Each subject matter of an independent claim solves this problem. Further advantageous aspects of the invention are considered in the dependent claims. Regardless of the grammatical gender of a particular term, it encompasses persons with male, female, or other gender identities.

[0005] The invention relates to a device for receiving a beam path component for an X-ray radiation, - the device comprising a base plate and a sheet metal part, - with a through-opening for the X-ray radiation passing through the base plate, - wherein the sheet metal part has a base and a shield, wherein the base extends flat in a base plane of the sheet metal part, wherein the sheet metal part is curved such that the shield extends flat away from the base plane of the sheet metal part, - wherein the sheet metal part is fixed relative to the base plate by pressing the base and the base plate against each other in such a way that the shield shields an area surrounding the base plate from scattered X-rays which are directed from an edge area of ​​the through opening onto the area surrounding the base plate.

[0006] In particular, it can be provided that the base plate extends flatly in a base plate plane. In particular, it can be provided that the through-opening extends through the base plate perpendicular to the base plate and / or perpendicular to the base plate plane. In particular, it can be provided that the base rests flatly against the base plate and / or that the base plane of the sheet metal part is parallel to the base plate and / or parallel to the base plate plane.

[0007] The beam path component can be, for example, a collimator and / or a filter. The beam path component can, for example, comprise a slotted plate and / or a filter plate, wherein the filter plate can be detachably connected to the slotted plate, in particular screwed, for example. In particular, the carriage system can be configured to accommodate the slotted plate and / or the filter plate.

[0008] This enables a particularly easily adaptable and cost-effective design, with which various aspects of radiation shielding can be taken into account by appropriately shaped sheet metal parts.

[0009] In particular, it can be provided that the through-opening is elongated and / or gap-shaped. In particular, it can be provided that the sheet metal part has a base-shield curvature zone between the base and the shield and / or that the base-shield curvature zone is curved about a base-shield curvature axis. The base-shield curvature axis can, for example, be parallel to the base plate and / or parallel to the base plate plane. In particular, it can be provided that the shield extends flatly in a shield plane of the sheet metal part and / or that an absolute value of an angle between the base plane of the sheet metal part and the shield plane of the sheet metal part is greater than 40 degrees, for example greater than 80 degrees, and / or less than 160 degrees, for example less than 120 degrees.

[0010] The sheet metal part can be curved, for example, by forming, in particular bending, and / or cut to size by laser processing. The sheet metal part can, for example, be made of brass and / or steel and / or contain additives that improve the shielding properties and / or the resistance of the sheet metal part to ionizing radiation. The surface-to-surface pressing of the base and the base plate against one another can be achieved, for example, by a screw connection of the sheet metal part and the base plate. In particular, the base plate can have at least one threaded hole for the screw connection of the sheet metal part and the base plate. In particular, it can be provided that a further layer, for example a base of another sheet metal part, is arranged between the base and the base plate, which is, for example, pressed together surface-to-surface between the base and the base plate, in particular is pressed surface-to-surface against the base plate in this way.

[0011] One embodiment provides that the sheet metal part is a first sheet metal part of the device, wherein the base is a base of the first sheet metal part, wherein the shield is a shield of the first sheet metal part, wherein the region of the surroundings is a first region of the surroundings of the base plate.

[0012] In particular, it can be provided that the device has a second sheet metal part, wherein the second sheet metal part has a base of the second sheet metal part and a shield of the second sheet metal part, wherein the base of the second sheet metal part extends flat in a base plane of the second sheet metal part, wherein the second sheet metal part is curved in such a way that the shield of the second sheet metal part extends flat away from the base plane of the second sheet metal part, wherein the second sheet metal part is fixed relative to the base plate by a flat pressing of the base of the second sheet metal part and the base plate against one another in such a way that the shield of the second sheet metal part shields a second region of the surroundings of the base plate from scattered rays of the X-radiation which are directed from the edge region of the through opening onto the second region of the surroundings of the base plate.

[0013] In particular, it can be provided that the through-opening is located between the base of the first sheet metal part and the base of the second sheet metal part, wherein a connecting region of the first sheet metal part and a connecting region of the second sheet metal part are joined to one another in such a way that the first sheet metal part and the second sheet metal part together form a profile bridging the through-opening. In particular, it can be provided that the base of the second sheet metal part lies flat against the base plate and / or that the base plane of the second sheet metal part is parallel to the base plate and / or parallel to the base plate plane. For example, the base plane of the second sheet metal part can be coplanar to the base plane of the first sheet metal part.

[0014] The connecting region of the first sheet metal part and the connecting region of the second sheet metal part can, in particular, be joined to one another detachably and / or by means of a plug-in connection such that the first sheet metal part and the second sheet metal part together form the profile bridging the through-opening. For example, it can be provided that the connecting region of the first sheet metal part has a connecting tab and / or that the connecting region of the second sheet metal part has an elongated hole for receiving the connecting tab. The plug-in connection can, for example, be based on the receiving of the connecting tab in the elongated hole, in particular by inserting the connecting tab into the elongated hole parallel to the base plane of the first sheet metal part and / or to the base plane of the second sheet metal part.

[0015] The connecting region of the first sheet metal part and the connecting region of the second sheet metal part can in particular be joined to one another in a form-fitting manner such that the first sheet metal part and the second sheet metal part together form the profile bridging the through-opening and / or that the connecting region of the first sheet metal part is secured in a form-fitting manner by means of the second sheet metal part relative to the base plate against a movement perpendicular to the base plate.

[0016] In particular, it can be provided that the connecting region of the first sheet metal part is arranged distally with respect to the base of the first sheet metal part and / or that the connecting region of the second sheet metal part is arranged distally with respect to the base of the second sheet metal part. In particular, it can be provided that the shield of the first sheet metal part is located between the base of the first sheet metal part and the connecting region of the first sheet metal part and / or that the shield of the second sheet metal part is located between the base of the second sheet metal part and the connecting region of the second sheet metal part. For example, it can be provided that the shield of the second sheet metal part extends from the base of the second sheet metal part to the connecting region of the second sheet metal part.

[0017] One embodiment provides that the shield extends away from the base plane of the sheet metal part in such a way that the shield laterally shields a radiation exit region for the X-radiation, wherein the radiation exit region for the X-radiation extends from the base plate to the beam path component, in particular extends perpendicular to the base plate when the beam path component is accommodated in the device.

[0018] One embodiment provides for the shield to protrude through the through-opening, in particular, such that the base plate is located between the base plane and the area surrounding the base plate. This allows more effective use of surfaces for attaching sheet metal parts to the base plate. Furthermore, the shield can shield the base plate from scattered X-rays directed from the through-opening onto the base plate. Furthermore, the shield can thus prevent scattered radiation from penetrating a gap located between the base plate and the base.

[0019] One embodiment provides that the device has a linear guide and a carriage system, wherein the carriage system is configured to receive the beam path component and is mounted by means of the linear guide so as to be movable relative to the through-opening parallel to the base plate. In particular, it can be provided that the linear guide has a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are fastened to the base plate, in particular fastened in such a way that the through-opening for the X-ray radiation is located between the first guide rail and the second guide rail with respect to a direction that is parallel to the base plate and perpendicular to the linear guide.

[0020] One embodiment provides that the sheet metal part has a pre-shield for the entry of X-rays into the device, wherein the shield extends from the base to the pre-shield, wherein the sheet metal part is curved such that the pre-shield extends flatly parallel to the base plane of the sheet metal part. In particular, it can be provided that the pre-shield is located between the shield of the first sheet metal part and the connecting region of the first sheet metal part and / or that the pre-shield extends from the shield of the first sheet metal part to the connecting region of the first sheet metal part.

[0021] In particular, it can be provided that the pre-diaphragm extends flatly in a pre-diaphragm plane and / or that an inlet opening for the X-ray radiation passes through the pre-diaphragm. In particular, it can be provided that the inlet opening for the X-ray radiation passes through the pre-diaphragm perpendicular to the pre-diaphragm and / or perpendicular to the pre-diaphragm plane. In particular, it can be provided that the pre-diaphragm plane is parallel to the base plane and / or that the pre-diaphragm plane is parallel to the base plate and / or parallel to the base plate plane. The pre-diaphragm can in particular be designed for pre-collimation of the X-ray radiation. This allows multiple uses of the same sheet metal part in that the sheet metal part serves both for scattered radiation shielding and for pre-collimation simultaneously.

[0022] In particular, it can be provided that the inlet opening is elongated and / or slit-shaped. In particular, it can be provided that the sheet metal part has a pre-shield-shield curvature zone between the front shield and the shield and / or that the front shield-shield curvature zone is curved about a front shield-shield curvature axis. The front shield-shield curvature axis can, for example, be parallel to the base plate and / or parallel to the base plate plane. In particular, it can be provided that the shield extends flat in a shielding plane of the sheet metal part and / or that an absolute value of an angle between the front shield and the shielding plane of the sheet metal part is greater than 40 degrees, for example greater than 80 degrees, and / or less than 160 degrees, for example less than 120 degrees.

[0023] One embodiment provides that the front diaphragm has a radiation monitor opening for entry of a radiation monitor portion of the X-radiation into the device, wherein the device has a radiation monitor detector for detection of the radiation monitor portion of the X-radiation.

[0024] One embodiment provides that the device has an outer sheet metal part, wherein the outer sheet metal part has an outer shield, wherein the outer shield shields the area surrounding the base plate from scattered X-rays that originate from the edge region of the through-opening and are directed toward the area surrounding the base plate and penetrate the shield. In particular, it can be provided that the outer sheet metal part has a radiator coupling shield, wherein the radiator coupling shield protrudes beyond the front shield and laterally shields a radiator coupling area of ​​the device, wherein the front shield is located between the radiator coupling area and the through-opening.

[0025] In particular, it can be provided that the radiator coupling screen laterally shields the radiator coupling area of ​​the device in such a way that the radiator coupling screen counteracts a lateral exit, in particular a lateral exit substantially parallel to the base plate, of scattered rays of the X-ray radiation from the radiator coupling area into the surroundings of the base plate

[0026] The outer sheet metal part can in particular have an outer base, wherein the outer base extends flat in a base plane of the outer sheet metal part, wherein the outer sheet metal part is curved such that the shield of the outer sheet metal part extends flat away from the base plane of the outer sheet metal part. The outer sheet metal part can in particular be fixed relative to the base plate by a flat pressing of the outer base and the base plate against one another. In particular, it can be provided that the outer base lies flat against the base and / or that the base plane of the outer sheet metal part is parallel to the base plate and / or parallel to the base plate plane. In particular, it can be provided that the outer shield lies flat against the shield and / or that the base is clamped between the outer base and the base plate.

[0027] The invention further relates to an X-ray source system for providing X-radiation, wherein the X-ray source system comprises a device according to the invention, a radiation source for generating the X-radiation, and a source shield arrangement for the radiation source, wherein the device and the source shield arrangement are arranged relative to one another such that the sheet metal part of the device and the source shield arrangement together form a labyrinth arrangement for shielding against scattered radiation, in particular by means of a positive fit and / or by means of an overlap. In particular, it can be provided that the X-ray source system comprises the beam path component and / or that the beam path component is accommodated in the device, in particular such that the device is located between the radiation source and the beam path component.

[0028] One embodiment provides for the source shield arrangement to have an inner source shield, wherein the inner source shield is incorporated into the radiator coupling region and, together with the radiator coupling shield, forms an overlap for scattered radiation shielding. The labyrinth arrangement can, for example, have the overlap formed by the inner source shield and the radiator coupling shield.

[0029] One embodiment provides that the source shield arrangement has an outer source shield, wherein the sheet metal part of the device projects into the source shield arrangement in such a way that the outer source shield shields the area surrounding the base plate from scattered rays of the X-radiation which come from the edge area of ​​the through opening and are directed towards the area surrounding the base plate and penetrate the shield, in particular the shield and the outer shield.

[0030] In particular, it can be provided that a reference plane, which is parallel to the base plate plane and / or to the pre-diaphragm plane, intersects the inner source shield and / or the outer sheet metal part and / or the outer source shield, in particular along a respective circumferentially closed contour. In particular, it can be provided that the pre-diaphragm plane is located between the base plate plane and the reference plane and / or that the reference plane is located between the radiation source and the pre-diaphragm plane.

[0031] One embodiment provides that the sheet metal part has a securing tab, wherein the securing tab is arranged outside the outer source shield and positively counteracts a translational movement of the outer source shield relative to the device in a direction parallel to the base plate. In particular, it can be provided that the outer source shield is arranged between the shield and the securing tab with respect to the direction parallel to the base plate.

[0032] The invention further relates to a medical imaging device comprising an X-ray source system according to the invention and a detector, wherein the device is arranged between the radiation source and the detector. In particular, it can be provided that the base plate is fixed relative to the radiation source and the detector.

[0033] The medical imaging device can be, for example, a computed tomography (CT) device, a C-arm X-ray device, or a fluoroscopy X-ray device. The computed tomography device can be, for example, a head computed tomography device, in particular a mobile head computed tomography device.

[0034] The invention further relates to a method for producing a device for receiving a beam path component for X-ray radiation, - whereby a base plate and a sheet metal part are provided, - with a through-opening for the X-ray radiation passing through the base plate, - wherein the sheet metal part has a base and a shield, wherein the base extends flat in a base plane of the sheet metal part, wherein the sheet metal part is curved such that the shield extends flat away from the base plane of the sheet metal part, - wherein the sheet metal part is fixed relative to the base plate by pressing the base and the base plate against each other in such a way that the shield shields an area surrounding the base plate from scattered X-rays which are directed from an edge area of ​​the through-opening onto the area surrounding the base plate.

[0035] In particular, it can be provided that the sheet metal part is first positioned relative to the base plate using an assembly template, and then fixed relative to the base plate by pressing the base and the base plate against each other, for example by means of a screw connection. The assembly template can then be detached and / or used to assemble another sheet metal part of the same or a different example of the device. Costs can be saved by reusing an assembly template manufactured with high precision. An assembly template can also be used accordingly for the assembly of other parts of the device, in particular for the assembly of the guide rails of the linear guide to the base plate.

[0036] One embodiment provides that the sheet metal part is a first sheet metal part of the device, wherein the base is a base of the first sheet metal part, wherein the screen is a screen of the first sheet metal part, wherein the area of ​​the environment is a first area of ​​the environment of the base plate, - wherein a second sheet metal part is provided, - wherein the second sheet metal part has a base of the second sheet metal part and a shield of the second sheet metal part, wherein the base of the second sheet metal part extends flat in a base plane of the second sheet metal part, wherein the second sheet metal part is curved such that the shield of the second sheet metal part extends flat away from the base plane of the second sheet metal part, - wherein the second sheet metal part is fixed relative to the base plate by pressing the base of the second sheet metal part and the base plate against each other in such a way that the shield of the second sheet metal part shields a second area of ​​the surroundings of the base plate from scattered X-rays coming from the edge area of ​​the through-opening and directed onto the second area of ​​the surroundings of the base plate, and that the through-opening is located between the base of the first sheet metal part and the base of the second sheet metal part, - wherein a connecting region of the first sheet metal part and a connecting region of the second sheet metal part are joined together in such a way that the first sheet metal part and the second sheet metal part together form a profile bridging the through opening.

[0037] In particular, it can be provided that the connecting region of the first sheet metal part and the connecting region of the second sheet metal part are joined to one another detachably and / or by means of a plug-in connection such that the first sheet metal part and the second sheet metal part together form the profile bridging the through-opening. For example, it can be provided that the connecting region of the first sheet metal part has a connecting tab and / or that the connecting region of the second sheet metal part has an elongated hole for receiving the connecting tab. The plug-in connection can be formed, for example, by the connecting tab being received in the elongated hole and / or by the connecting tab being inserted into the elongated hole substantially parallel to the base plane of the first sheet metal part and / or to the base plane of the second sheet metal part.

[0038] Within the scope of the invention, features which are described with reference to different embodiments of the invention and / or different claim categories (method, use, device, system, arrangement, etc.) can be combined to form further embodiments of the invention.

[0039] For example, a claim relating to a device can also be developed with features described or claimed in connection with a method, and vice versa. Functional features of a method can be implemented by appropriately designed physical components. The use of the indefinite article "a" or "an" does not exclude the possibility that the feature in question may be present multiple times. In the context of the present application, the expression "based on" can be understood in particular in the sense of the expression "using."

[0040] In the following, features of the invention are explained using examples with reference to the accompanying figures. The representation in the figures is schematic, highly simplified, and not necessarily to scale.

[0041] The Fig. 1-3 show a device for receiving a beam path component for an X-ray radiation.

[0042] The Fig. 4 shows an X-ray source system for providing X-ray radiation.

[0043] The Fig. 5 shows a medical imaging device.

[0044] The Fig. 1-3 show the device 1 for receiving a beam path component 7 for an X-ray radiation 27, - wherein the device 1 comprises a base plate 4 and a sheet metal part 5, - wherein a through-opening 40 for the X-ray radiation 27 passes through the base plate 4, - wherein the sheet metal part 5 has a base 54 and a screen 58, wherein the base 54 extends flat in a base plane of the sheet metal part 5, wherein the sheet metal part 5 is curved such that the screen 58 extends flat away from the base plane of the sheet metal part 5, - wherein the sheet metal part 5 is fixed relative to the base plate 4 by pressing the base 54 and the base plate 4 against one another in a planar manner such that the screen 58 shields a region 8 of the surroundings of the base plate 4 from scattered rays of the X-ray radiation 27 which are directed from an edge region of the through opening 40 onto the region 8 of the surroundings of the base plate 4.

[0045] In the example shown, it is provided that the base plate 4 extends flat in a base plate plane. In the example shown, it is provided that the through-opening 40 extends perpendicular to the base plate 4 and perpendicular to the base plate plane through the base plate 4. In the example shown, it is provided that the base 54 lies flat against the base plate 4 and that the base plane of the sheet metal part 5 is parallel to the base plate 4 and parallel to the base plate plane. The beam path component 7 can, for example, be a collimator and / or a filter. The beam path component 7 can, for example, have a slotted plate and / or a filter plate, wherein the filter plate can, for example, be detachably connected to the slotted plate, in particular screwed.

[0046] The carriage system W is designed to accommodate the slotted plate and / or the filter plate.

[0047] In the example shown, it is provided that the sheet metal part 5 is a first sheet metal part 5A of the device 1, wherein the base 54 is a base 54A of the first sheet metal part 5A, wherein the screen 58 is a screen 58A of the first sheet metal part 5A, wherein the area 8 of the surroundings is a first area 8A of the surroundings of the base plate 4, - wherein the device 1 comprises a second sheet metal part 5B, - wherein the second sheet metal part 5B has a base 54B of the second sheet metal part 5B and a shield 58B of the second sheet metal part 5B, wherein the base 54B of the second sheet metal part 5B extends flat in a base plane of the second sheet metal part 5B, wherein the second sheet metal part 5B is curved such that the shield 58B of the second sheet metal part 5B extends flat away from the base plane of the second sheet metal part 5B, - wherein the second sheet metal part 5B is fixed relative to the base plate 4 by pressing the base 54B of the second sheet metal part 5B and the base plate 4 against each other in such a way that the shield 58B of the second sheet metal part 5B shields a second region 8B of the surroundings of the base plate 4 from scattered rays of the X-ray radiation 27, which are directed from the edge region of the through-opening 40 onto the second region 8B of the surroundings of the base plate 4, - wherein the through-opening 40 is located between the base 54A of the first sheet metal part 5A and the base 54B of the second sheet metal part 5B, wherein a connecting region 55A of the first sheet metal part 5A and a connecting region 55B of the second sheet metal part 5B are joined to one another in such a way that the first sheet metal part 5A and the second sheet metal part 5B together form a profile bridging the through-opening 40.

[0048] In the example shown, the base 54B of the second sheet metal part 5B rests flat against the base plate 4, and the base plane of the second sheet metal part 5B is parallel to the base plate 4 and parallel to the base plate plane. For example, the base plane of the second sheet metal part 5B can be coplanar with the base plane of the first sheet metal part 5A.

[0049] The connecting region 55A of the first sheet metal part 5A and the connecting region 55B of the second sheet metal part 5B can, in particular, be joined together detachably and / or by means of a plug-in connection such that the first sheet metal part 5A and the second sheet metal part 5B together form the profile bridging the through-opening 40. For example, it can be provided that the connecting region 55A of the first sheet metal part 5A has a connecting tab and / or that the connecting region 55B of the second sheet metal part 5B has an elongated hole for receiving the connecting tab. The plug-in connection can, for example, be based on the receiving of the connecting tab in the elongated hole, in particular by inserting the connecting tab into the elongated hole parallel to the base plane of the first sheet metal part 5A and / or to the base plane of the second sheet metal part 5B.

[0050] The connecting region 55A of the first sheet metal part 5A and the connecting region 55B of the second sheet metal part 5B can in particular be joined to one another in a form-fitting manner such that the first sheet metal part 5A and the second sheet metal part 5B together form the profile bridging the through-opening 40 and / or that the connecting region 55A of the first sheet metal part 5A is positively secured by means of the second sheet metal part 5B relative to the base plate 4 against a movement perpendicular to the base plate 4.

[0051] In the example shown, it is provided that the connecting region 55A of the first sheet metal part 5A is arranged distally with respect to the base 54A of the first sheet metal part 5A and that the connecting region 55B of the second sheet metal part 5B is arranged distally with respect to the base 54B of the second sheet metal part 5B. In the example shown, it is provided that the shield 58A of the first sheet metal part 5A is located between the base 54A of the first sheet metal part 5A and the connecting region 55A of the first sheet metal part 5A and that the shield 58B of the second sheet metal part 5B is located between the base 54B of the second sheet metal part 5B and the connecting region 55B of the second sheet metal part 5B. For example, it can be provided that the shield 58B of the second sheet metal part 5B extends from the base 54B of the second sheet metal part 5B to the connecting region 55B of the second sheet metal part 5B.

[0052] In the example shown, it is provided that the shield 58C extends away from the base plane of the sheet metal part 5C in such a way that the shield 58C laterally shields a beam exit region 47 for the X-ray radiation 27, wherein the beam exit region 47 for the X-ray radiation 27 extends from the base plate 4 to the beam path component 7, in particular extends perpendicular to the base plate 4 when the beam path component 7 is accommodated in the device 1.

[0053] In the example shown, it is provided that the shield 58C of the sheet metal part 5C protrudes through the through opening 40, in particular protrudes such that the base plate 4 is located between the base plane of the sheet metal part 5C, in which the base 54C of the sheet metal part 5C extends flat, and the area 8C of the surroundings of the base plate 4.

[0054] In the example shown, it is provided that the device 1 has a linear guide L and a carriage system W, wherein the carriage system W is designed to receive the beam path component 7 and is mounted by means of the linear guide L so as to be movable relative to the through opening 40 parallel to the base plate 4.

[0055] In the example shown, it is provided that the sheet metal part 5 has a pre-diaphragm A for the entry of the X-ray radiation 27 into the device 1, wherein the screen 58 extends from the base 54 to the pre-diaphragm A, wherein the sheet metal part 5 is curved such that the pre-diaphragm A extends flat and parallel to the base plane of the sheet metal part 5. In the example shown, it is provided that the pre-diaphragm A is located between the screen 58A of the first sheet metal part 5A and the connecting region 55A of the first sheet metal part 5A and that the pre-diaphragm A extends from the screen 58A of the first sheet metal part 5A to the connecting region 55A of the first sheet metal part 5A.

[0056] In the example shown, the front aperture A is provided with a radiation monitor opening N5 for the entry of a radiation monitor portion of the X-ray radiation 27 into the device 1, wherein the device 1 has a radiation monitor detector N2 for detecting the radiation monitor portion of the X-ray radiation 27. A recess is provided in the base 54A of the first sheet metal part 5A, through which the cable N1 is routed, connecting the radiation monitor detector N2 to the radiation monitor interface N3 for power supply and data transmission.

[0057] In the example shown, it is provided that the device 1 has an outer sheet metal part 5E, wherein the outer sheet metal part 5E has an outer shield 58E, wherein the outer shield 58E shields the area 8 of the surroundings of the base plate 4 from scattered rays of the X-radiation 27, which come from the edge region of the through-opening 40 and are directed onto the area 8 of the surroundings of the base plate 4 and penetrate the shield 58, wherein the outer sheet metal part 5E has a radiator coupling shield E, wherein the radiator coupling shield E projects beyond the front shield A and laterally shields a radiator coupling area 52 of the device 1, wherein the front shield A is located between the radiator coupling area 52 and the through-opening 40.

[0058] In the example shown, it is provided that the radiator coupling screen E laterally shields the radiator coupling area 52 of the device 1 in such a way that the radiator coupling screen E counteracts a lateral exit, in particular a lateral exit substantially parallel to the base plate, of scattered rays of the X-ray radiation 27 from the radiator coupling area 52 into the surroundings of the base plate 4

[0059] The outer sheet metal part 5E can in particular have an outer base 54E, wherein the outer base 54E extends flat in a base plane of the outer sheet metal part 5E, wherein the outer sheet metal part 5E is curved such that the shield 58E of the outer sheet metal part 5E extends flat away from the base plane of the outer sheet metal part 5E. The outer sheet metal part 5E can in particular be fixed relative to the base plate 4 by pressing the outer base 54E and the base plate 4 against each other. In the example shown, it is provided that the outer base 54E rests flat against the base 54 and / or that the base plane of the outer sheet metal part 5E is parallel to the base plate 4 and / or parallel to the base plate plane. In the example shown, it is provided that the outer screen 58E lies flat against the screen 58 and that the base 54 is clamped between the outer base 54E and the base plate 4.

[0060] The device 1 comprises several sheet metal parts 5, which are screwed to the base plate 4 and arranged in overlapping layers. This shields the area surrounding the base plate 4 from scattered X-rays 27.

[0061] The device 1 further comprises a threaded spindle, a screw drive, and a drive M, wherein the threaded spindle is mounted so as to be rotatable about a spindle rotation axis relative to the base plate 4, wherein the carriage system W is mounted so as to be movable relative to the base plate 4 by means of the linear guide L parallel to the spindle rotation axis, wherein the screw drive is configured to convert a first rotational movement of the threaded spindle about the spindle rotation axis into a translational movement of the carriage system W relative to the base plate 4 parallel to the spindle rotation axis, wherein the drive M is configured to drive the first rotational movement of the threaded spindle. The drive M is fastened to the base plate 4 and, by means of at least one sheet metal part, is shielded from scattered X-rays (27) directed onto the drive M from the edge region of the through-opening 40.

[0062] The Fig. 4 shows the X-ray source system 2 for providing X-ray radiation 27. The X-ray source system 2 comprises the device 1, a radiation source 26 for generating the X-ray radiation 27, and a source shield arrangement 6 for the radiation source 26. The device 1 and the source shield arrangement 6 are arranged relative to one another such that the sheet metal part 5 of the device 1 and the source shield arrangement 6 together form a labyrinth arrangement for shielding against scattered radiation. The X-ray source system 2 comprises the beam path component 7. The beam path component 7 is incorporated into the device 1, in particular such that the device 1 is located between the radiation source 26 and the beam path component 7.

[0063] In the example shown, it is provided that the device 1 is designed according to claim 8, wherein the source shield arrangement 6 has an inner source shield 61, wherein the inner source shield 61 is received in the radiator coupling region 52 and, together with the radiator coupling shield E, forms an overlap for scattered radiation shielding.

[0064] In the example shown, it is provided that the source shield arrangement 6 has an outer source shield 62, wherein the sheet metal part 5 of the device 1 projects into the source shield arrangement 6 in such a way that the outer source shield 62 shields the region 8 of the surroundings of the base plate 4 from scattered rays of the X-radiation 27, which come from the edge region of the through opening 40 and are directed onto the region 8 of the surroundings of the base plate 4 and penetrate the shield 58.

[0065] In the example shown, it is provided that the sheet metal part 5L has a securing tab L, wherein the securing tab L is arranged outside the outer source shield 62 and positively counteracts a translational movement of the outer source shield 62 relative to the device 1 in a direction parallel to the base plate 4. In particular, it is provided that the outer source shield 62 is arranged between the shield 58L of the sheet metal part 5L and the securing tab L with respect to the direction parallel to the base plate 4. The securing tab L extends flatly away from the base plane of the sheet metal part 5L, in which the base 54L of the sheet metal part 5L extends flatly.

[0066] The Fig.5 shows the medical imaging device 3 in the form of a computed tomography device, comprising the X-ray source system 2 and the detector 28, wherein the device 1 is arranged between the radiation source 26 and the detector 28, in particular between the radiation source 26 and the rotation axis S.

[0067] The medical imaging device 3 further comprises a computing unit 35 configured to control the drive M based on position information relating to a position of the beam path component 7 relative to the radiation source 26 and / or relative to the detector 28, in order to position the beam path component 7 in the desired position relative to the radiation source 26 and / or relative to the detector 28. The computing unit 35 is formed by a computer 30 comprising a processor system 34, a memory system 32, a data transmission interface 36, an input unit 38, and a display unit 39 in the form of a screen. The computer 30 is also connected to the radiation monitor interface N3. The computed tomography device comprises the patient support device 10 for supporting the patient 13. The patient support device 10 comprises the support base 11 and the support plate 12.By means of a movement of the support plate 12 and the gantry 20 relative to each other, the examination area 19 of the patient 13 can be introduced into the tunnel-shaped opening 9 of the gantry 20.

[0068] The computed tomography device comprises the gantry 20. The gantry 20 comprises a support frame 21, a tilting frame 22 mounted tiltably relative to the support frame 21, and a rotating frame 24 mounted rotatably relative to the tilting frame 22 about the rotation axis S. The rotating frame 24 comprises the radiation source 26, the detector 28, and the device 1. By means of the adjustment elements Z0, Z1, and R, a position and / or orientation of the base plate 4 relative to the rotating frame 24 and thus relative to the radiation source 26 and the detector 28 can be adjusted.

Claims

[1] Device (1) for receiving a beam path component (7) for an X-ray radiation (27), - wherein the device (1) comprises a base plate (4) and a sheet metal part (5), - wherein a through-opening (40) for the X-ray radiation (27) passes through the base plate (4), - wherein the sheet metal part (5) has a base (54) and a shield (58), wherein the base (54) extends flat in a base plane of the sheet metal part (5), wherein the sheet metal part (5) is curved such that the shield (58) extends flat away from the base plane of the sheet metal part (5), - wherein the sheet metal part (5) is fixed relative to the base plate (4) by pressing the base (54) and the base plate (4) against one another in a planar manner such that the screen (58) shields a region (8) surrounding the base plate (4) from scattered rays of the X-ray radiation (27) which are directed from an edge region of the through-opening (40) onto the region (8) surrounding the base plate (4). [2] Device (1) according to claim 1, - wherein the sheet metal part (5) is a first sheet metal part (5A) of the device (1), wherein the base (54) is a base (54A) of the first sheet metal part (5A), wherein the screen (58) is a screen (58A) of the first sheet metal part (5A), wherein the area (8) of the surroundings is a first area (8A) of the surroundings of the base plate (4), - wherein the device (1) has a second sheet metal part (5B), - wherein the second sheet metal part (5B) has a base (54B) of the second sheet metal part (5B) and a shield (58B) of the second sheet metal part (5B), wherein the base (54B) of the second sheet metal part (5B) extends flat in a base plane of the second sheet metal part (5B), wherein the second sheet metal part (5B) is curved such that the shield (58B) of the second sheet metal part (5B) extends flat away from the base plane of the second sheet metal part (5B), - wherein the second sheet metal part (5B) is fixed relative to the base plate (4) by pressing the base (54B) of the second sheet metal part (5B) and the base plate (4) against each other in such a way that the shield (58B) of the second sheet metal part (5B) shields a second region (8B) of the surroundings of the base plate (4) from scattered rays of the X-ray radiation (27) coming from the edge region of the through-opening (40) and directed onto the second region (8B) of the surroundings of the base plate (4), - wherein the through-opening (40) is located between the base (54A) of the first sheet metal part (5A) and the base (54B) of the second sheet metal part (5B), wherein a connecting region (55A) of the first sheet metal part (5A) and a connecting region (55B) of the second sheet metal part (5B) are joined to one another in such a way that the first sheet metal part (5A) and the second sheet metal part (5B) together form a profile bridging the through-opening (40). [3] Device (1) according to claim 1 or 2, - wherein the screen (58) extends away from the base plane of the sheet metal part (5) in such a way that the screen (58) laterally screens a radiation exit area (47) for the X-ray radiation (27), - wherein the beam exit region (47) for the X-ray radiation (27) extends from the base plate (4) to the beam path component (7) when the beam path component (7) is accommodated in the device (1). [4] Device (1) according to one of claims 1 to 3, - wherein the screen (58) projects through the through opening (40). [5] Device (1) according to one of claims 1 to 4, - wherein the device (1) comprises a linear guide (L) and a carriage system (W), - wherein the carriage system (W) is designed to receive the beam path component (7) and is mounted so as to be movable relative to the through-opening (40) parallel to the base plate (4) by means of the linear guide (L). [6] Device (1) according to one of claims 1 to 5, - wherein the sheet metal part (5) has a pre-diaphragm (A) for the entry of the X-ray radiation (27) into the device (1), - wherein the screen (58) extends from the base (54) to the front panel (A), - wherein the sheet metal part (5) is curved such that the front panel (A) extends flatly parallel to the base plane of the sheet metal part (5). [7] Device (1) according to claim 6, - wherein the pre-diaphragm (A) has a radiation monitor opening (N5) for the entry of a radiation monitor portion of the X-ray radiation (27) into the device (1), - wherein the device (1) has a radiation monitor detector (N2) for detecting the radiation monitor portion of the X-radiation (27). [8] Device (1) according to claim 6 or 7, - wherein the device (1) has an outer sheet metal part (5E), - wherein the outer sheet metal part (5E) has an outer shield (58E), wherein the outer shield (58E) shields the area (8) surrounding the base plate (4) from scattered rays of the X-ray radiation (27) coming from the edge area of the through-opening (40) and directed towards the area (8) surrounding the base plate (4) and penetrating the shield (58), - wherein the outer sheet metal part (5E) has a radiator coupling screen (E), wherein the radiator coupling screen (E) projects beyond the front shield (A) and laterally shields a radiator coupling region (52) of the device (1), wherein the front shield (A) is located between the radiator coupling region (52) and the through opening (40). [9] X-ray source system (2) for providing X-ray radiation (27), - wherein the X-ray source system (2) comprises a device (1) according to one of claims 1 to 8, a radiation source (26) for generating the X-ray radiation (27) and a source shield arrangement (6) for the radiation source (26), - wherein the device (1) and the source shield arrangement (6) are arranged relative to one another in such a way that the sheet metal part (5) of the device (1) and the source shield arrangement (6) together form a labyrinth arrangement for shielding against scattered radiation. [10] X-ray system (2) according to claim 9, - wherein the device (1) is designed according to claim 8, - wherein the source screen arrangement (6) has an inner source screen (61), - wherein the inner source shield (61) is accommodated in the radiator coupling region (52) and, together with the radiator coupling shield (E), forms an overlap for scattered radiation shielding. [11] X-ray system (2) according to claim 9 or 10, - wherein the source screen arrangement (6) comprises an outer source screen (62), - wherein the sheet metal part (5) of the device (1) projects into the source shield arrangement (6) in such a way that the outer source shield (62) shields the area (8) surrounding the base plate (4) from scattered rays of the X-radiation (27) which come from the edge area of the through opening (40) and are directed onto the area (8) surrounding the base plate (4) and penetrate the shield (58). [12] X-ray tube system (2) according to claim 11, - wherein the sheet metal part (5) has a securing tab (L), - wherein the securing tab (L) is arranged outside the outer source screen (62) and positively counteracts a translational movement of the outer source screen (62) relative to the device (1) in a direction parallel to the base plate (4). [13] Medical imaging device (3), comprising - an X-ray source system (2) according to one of claims 9 to 12 and a detector (28), - wherein the device (1) is arranged between the radiation source (26) and the detector (28). [14] Method for producing a device (1) for receiving a beam path component (7) for an X-ray radiation (27), - wherein a base plate (4) and a sheet metal part (5) are provided, - wherein a through-opening (40) for the X-ray radiation (27) passes through the base plate (4), - wherein the sheet metal part (5) has a base (54) and a shield (58), wherein the base (54) extends flat in a base plane of the sheet metal part (5), wherein the sheet metal part (5) is curved such that the shield (58) extends flat away from the base plane of the sheet metal part (5), - wherein the sheet metal part (5) is fixed relative to the base plate (4) by pressing the base (54) and the base plate (4) against one another in a planar manner such that the screen (58) shields a region (8) surrounding the base plate (4) from scattered rays of the X-ray radiation (27) which are directed from an edge region of the through-opening (40) onto the region (8) surrounding the base plate (4). [15] Method according to claim 14, - wherein the sheet metal part (5) is a first sheet metal part (5A) of the device (1), wherein the base (54) is a base (54A) of the first sheet metal part (5A), wherein the screen (58) is a screen (58A) of the first sheet metal part (5A), wherein the area (8) of the surroundings is a first area (8A) of the surroundings of the base plate (4), - wherein a second sheet metal part (5B) is provided, - wherein the second sheet metal part (5B) has a base (54B) of the second sheet metal part (5B) and a shield (58B) of the second sheet metal part (5B), wherein the base (54B) of the second sheet metal part (5B) extends flat in a base plane of the second sheet metal part (5B), wherein the second sheet metal part (5B) is curved such that the shield (58B) of the second sheet metal part (5B) extends flat away from the base plane of the second sheet metal part (5B), - wherein the second sheet metal part (5B) is fixed relative to the base plate (4) by pressing the base (54B) of the second sheet metal part (5B) and the base plate (4) against each other in a planar manner such that the shield (58B) of the second sheet metal part (5B) shields a second region (8B) of the surroundings of the base plate (4) from scattered rays of the X-ray radiation (27) coming from the edge region of the through-opening (40) and directed onto the second region (8B) of the surroundings of the base plate (4), and such that the through-opening (40) is located between the base (54A) of the first sheet metal part (5A) and the base (54B) of the second sheet metal part (5B), - wherein a connecting region (55A) of the first sheet metal part (5A) and a connecting region (55B) of the second sheet metal part (5B) are joined together in such a way that the first sheet metal part (5A) and the second sheet metal part (5B) together form a profile bridging the through opening (40).

Images