CN218726785U - Dual-energy X-ray detector and scanning equipment - Google Patents
Dual-energy X-ray detector and scanning equipment Download PDFInfo
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- CN218726785U CN218726785U CN202222677026.2U CN202222677026U CN218726785U CN 218726785 U CN218726785 U CN 218726785U CN 202222677026 U CN202222677026 U CN 202222677026U CN 218726785 U CN218726785 U CN 218726785U
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Abstract
A dual energy X-ray detector and scanning apparatus are provided. The dual-energy X-ray detector comprises a high-energy detector card, a filtering sheet, a low-energy detector card and a flexible data cable which are assembled together, the high-energy detector card, the filtering sheet and the low-energy detector card are sequentially arranged in a first direction, and the data cable is electrically connected with the high-energy detector card and the low-energy detector card; wherein at least one of the high-energy detector card and the low-energy detector card can be adjusted in position relative to the filter sheet in a second direction and/or a third direction, the first direction, the second direction and the third direction are intersected perpendicularly in pairs, and the structure can change the relative spatial positions of the pixel units of the high-energy detector and the pixel units of the low-energy detector more easily; in addition, the data flat cable is arranged as a flexible part, so that the data flat cable can be prevented from interfering the position adjustment process, and the data transmission performance and the physical performance of the data flat cable can be ensured.
Description
Technical Field
The utility model relates to a X ray detects and imaging technology field, concretely relates to dual energy X ray detector and scanning equipment.
Background
In X-ray inspection systems, scanning devices include an X-ray detector and an X-ray generating device that are disposed opposite to each other, and an object to be inspected is scanned at a constant speed between the X-ray detector and the X-ray generating device. The X-ray detector is typically a dual energy X-ray detector. The dual-energy X-ray detector comprises a low-energy detector, a high-energy detector and a filter sheet, wherein the X-ray generating device is arranged opposite to the low-energy detector, the filter sheet is positioned between the high-energy detector and the low-energy detector, and the filter sheet is generally made of copper or aluminum.
The X-ray generating device emits X-rays towards the X-ray detector, the X-rays attenuated by the detected object firstly pass through the low-energy detector, and the low-energy part of the energy spectrum of the X-rays is detected by the (low-energy) pixel unit of the low-energy detector; then the rays are further filtered by a filter, and the rest high-energy part can be detected by (high-energy) pixel units of a high-energy detector; and finally, obtaining an image of the detected object through image reconstruction.
In order to improve the spatial resolution of the image, the size or the number of pixel units can be increased, but the scheme causes the cost of the X-ray detector to be increased; or by reducing the transport speed, but this solution reduces the efficiency of the object inspection; or by increasing the readout frequency, but this scheme results in a reduced signal-to-noise ratio.
Based on the above problems, those skilled in the art propose a scheme for changing the relative spatial positions of the pixel units of the high-energy detector and the pixel units of the low-energy detector of the dual-energy X-ray detector, and implement, by matching with a corresponding image processing algorithm, that the spatial resolution of an image is improved without increasing the system cost and reducing the system performance.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a dual-energy X-ray detector, which is easier to change the relative spatial positions of the pixel units of the high-energy detector and the low-energy detector.
The utility model discloses a main objective still provides a scanning apparatus.
In order to achieve the above object, an embodiment of the present invention provides a dual-energy X-ray detector, which includes a high-energy detector card, a filter sheet, a low-energy detector card and a flexible data cable assembled together, wherein the high-energy detector card, the filter sheet and the low-energy detector card are sequentially disposed in a first direction, and the data cable is electrically connected to the high-energy detector card and the low-energy detector card; wherein at least one of the high energy detector card and the low energy detector card is positionally adjustable relative to the filter sheet in a second direction and/or a third direction, the first direction, the second direction, and the third direction intersecting one another.
In some exemplary embodiments, the dual energy X-ray detector further includes: the high-energy detector card, the filter sheet and the low-energy detector card are assembled together through the threaded connector.
In some exemplary embodiments, one of the high energy detector card and the low energy detector card is provided with a connecting hole, the other one is provided with a first adjusting hole, the filter sheet is provided with a second adjusting hole, and the threaded connector is sequentially inserted through the first adjusting hole, the second adjusting hole and the connecting hole.
In some exemplary embodiments, the connection hole is a threaded hole, and the threaded connector is a bolt screwed into the threaded hole.
In some exemplary embodiments, the connection hole is a through hole, and the threaded connector includes a bolt extending through the through hole and a nut screwed onto the bolt.
In some exemplary embodiments, the first adjusting holes and the second adjusting holes are elongated holes, the elongated holes are arranged along the second direction, and the length of each elongated hole is not greater than 3 d-4 d, d is the size of the pixel unit in the second direction.
In some exemplary embodiments, the first adjusting holes and the second adjusting holes are elongated holes, the elongated holes are arranged along the third direction, and the length of each elongated hole is not greater than 3 e-4 e, which is a dimension of the pixel unit in the third direction.
In some exemplary embodiments, the first adjusting hole, the second adjusting hole and the connecting hole include a plurality of groups arranged at intervals along the circumference of the first direction, and at least one group of the second adjusting holes is provided with scale marks arranged along the extending direction of the second adjusting hole.
In some exemplary embodiments, the first direction, the second direction, and the third direction intersect perpendicularly two by two.
In some exemplary embodiments, a support structure is disposed between the filter sheet and the high energy detector card, the support structure configured to maintain a spacing between the filter sheet and the high energy detector card at a set value.
In some exemplary embodiments, the set value is 4 to 5mm.
In some exemplary embodiments, the low energy detector card and the high energy detector card each comprise: a detector control circuit board; the pixel units are sequentially arranged on the detector control circuit board along a second direction and/or a third direction; the flat cable interface is arranged on the detector control circuit board; and the size of the dislocation of the plurality of pixel units of the low-energy detector card and the plurality of pixel units of the high-energy detector card in the second direction or the third direction is smaller than the size of one pixel unit.
The embodiment of the utility model provides a scanning device, including X ray generating device and any one of the above-mentioned embodiments dual energy X ray detector, X ray generating device with the low energy detector card sets up relatively in the first direction, X ray generating device with form transmission path between the low energy detector card.
The embodiment of the utility model provides a dual-energy X-ray detector, high energy detector card, filter piece, low energy detector card and data winding displacement assemble together, and at least one in high energy detector card and the low energy detector card can carry out position control in second direction and/or third direction for filtering the piece, and this structure can change the relative spatial position of the pixel unit of high energy detector and the pixel unit of low energy detector more easily; in addition, the data flat cable is arranged as a flexible part, so that the data flat cable can be prevented from interfering the position adjustment process, and the data transmission performance and the physical performance of the data flat cable can be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an exploded schematic view of a dual-energy X-ray detector according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the dual-energy X-ray detector shown in FIG. 1 when the dual-energy X-ray detector is dislocated in the X direction;
fig. 3 is a schematic structural diagram of the dual-energy X-ray detector shown in fig. 1 when the dual-energy X-ray detector is dislocated in the z direction.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
the device comprises a 100 high-energy detector card, a 110 high-energy detector control circuit board, a 111 first adjusting hole, a 120 high-energy pixel unit, a 200 filtering sheet, a 210 second adjusting hole, a 220 supporting structure, a 300 low-energy detector card, a 310 low-energy detector control circuit board, a 311 communication hole, a 320 low-energy pixel unit, a 330 first wiring interface and a 400 threaded connector.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "secured" are to be construed broadly, and thus, for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; "coupled" may be direct or indirect through an intermediary, and may be internal to two elements or an interaction of two elements unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.
The embodiment of the utility model provides a dual-energy X-ray detector, as shown in fig. 1 to fig. 3, including high-energy detector card 100, filter sheet 200, low-energy detector card 300 and flexible data winding displacement (not shown in the figure) assembled together, high-energy detector card 100, filter sheet 200 and low-energy detector card 300 set gradually in the first direction, and data winding displacement electricity connects high-energy detector card 100 and low-energy detector card 300; wherein at least one of the high-energy detector card 100 and the low-energy detector card 300 is positionally adjustable relative to the filter sheet 200 in a second direction and/or a third direction, the first direction, the second direction and the third direction intersecting one another.
According to the dual-energy X-ray detector, the high-energy detector card 100, the filter sheet 200, the low-energy detector card 300 and the data cable are assembled together, at least one of the high-energy detector card 100 and the low-energy detector card 300 can be adjusted in position relative to the filter sheet 200 in the second direction and/or the third direction, and the structure can change the relative spatial positions of the pixel units of the high-energy detector and the pixel units of the low-energy detector more easily; in addition, the data flat cable is arranged as a flexible part, so that the data flat cable can be prevented from interfering the position adjustment process, and the data transmission performance and the physical performance of the data flat cable can be ensured.
The high-energy detector card may be capable of being positionally adjusted in a second direction relative to the filter sheet; alternatively, the high energy detector card may be positionally adjustable in a third direction relative to the filter sheet; alternatively, as shown in FIG. 2, the low energy detector card 300 may be positionally adjustable in a second direction relative to the filter sheet 200; alternatively, as shown in FIG. 3, the low energy detector card 300 may be positionally adjustable in a third direction relative to the filter patch 200; or, the high-energy detector card and the low-energy detector card can be adjusted in position relative to the filter sheet in the second direction; or the high-energy detector card and the low-energy detector card can be adjusted in position in a third direction relative to the filter sheet; the above can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, which is not repeated herein, and all should fall within the protection scope of the present application.
In some examples, as shown in fig. 1 to 3, the first direction, the second direction, and the third direction intersect perpendicularly two by two, the first direction is set as a y-direction, the second direction is set as an x-direction, and the third direction is set as a z-direction. The high-energy detector card 100, the filter sheet 200 and the low-energy detector card 300 are sequentially arranged in the y direction, and the high-energy detector card 100, the filter sheet 200 and the low-energy detector card 300 are all parallel to a plane formed by x0 z.
In some exemplary embodiments, the low energy detector card 300 and the high energy detector card 100 each include: a detector control circuit board; the pixel units are sequentially arranged on the detector control circuit board along a second direction and/or a third direction; and the flat cable interface is arranged on the detector control circuit board.
As shown in fig. 1 to fig. 3, the detector control circuit board of the low energy detector card 300 is a low energy detector control circuit board 310, the pixel units of the low energy detector card 300 are low energy pixel units 320, the low energy pixel units 320 are configured to receive X-rays of a low energy spectrum portion, and the cable arrangement interface of the low energy detector card 300 is a first cable arrangement interface 330. The detector control circuit board of the high-energy detector card 100 is a high-energy detector control circuit board 110, the pixel unit of the high-energy detector card 100 is a high-energy pixel unit 120, the high-energy pixel unit 120 is used for receiving the X-ray of the high-energy spectrum part, and the cable interface of the high-energy detector card 100 is a second cable interface. One end of the data flat cable is connected with the first flat cable interface 330 in an inserting manner, and the other end of the data flat cable is connected with the second flat cable interface in an inserting manner.
In some examples, as shown in fig. 1, the dual-energy X-ray detector further includes: the threaded connection 400, the high energy detector card 100, the filter sheet 200, and the low energy detector card 300 are assembled together by the threaded connection 400. The operation of "adjusting the relative position of the high-energy detector card 100 and the low-energy detector card 300" can be performed by loosening the threaded connector 400, and after the operation of "adjusting the relative position of the high-energy detector card 100 and the low-energy detector card 300" is completed, the threaded connector 400 is tightened.
In some examples, as shown in fig. 1, one of the high-energy detector card 100 and the low-energy detector card 300 is provided with a connection hole 311, the other is provided with a first adjustment hole 111, the filter sheet 200 is provided with a second adjustment hole 210, and a screw connector 400 is sequentially inserted through the first adjustment hole 111, the second adjustment hole 210, and the connection hole 311.
As shown in fig. 1, the low-energy detector card 300 is provided with a connecting hole 311, the high-energy detector card 100 is provided with a first adjusting hole 111, the relative positions of the high-energy detector card 100 and the filter sheet 200 are not changed, and the low-energy detector card 300 can be adjusted relative to the high-energy detector card 100 and the filter sheet 200, so that the relative positions of the high-energy detector card 100 and the low-energy detector card 300 can be adjusted only by adjusting the position of the low-energy detector card 300; or the high-energy detector card is provided with a connecting hole, the low-energy detector card is provided with a first adjusting hole, the relative positions of the low-energy detector card and the filter sheet are not changed, and the high-energy detector card can adjust the positions of the low-energy detector card and the filter sheet, so that the relative positions of the high-energy detector card and the low-energy detector card can be adjusted only by adjusting the position of the high-energy detector card; the above can realize the purpose of this application, and its purpose does not break away from the design thought of the utility model, and it is no longer repeated here, all should belong to the scope of protection of this application.
Alternatively, the connection hole may be a threaded hole, the threaded connection member may be a bolt, and the bolt is screwed in the threaded hole (not shown in this embodiment); alternatively, as shown in fig. 1, the connection hole 311 is a through hole, and the threaded connection member 400 includes a bolt and a nut, the bolt extends out of the through hole, and the nut is screwed on the bolt; the above can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, which is not repeated herein, and all should fall within the protection scope of the present application.
In one embodiment, as shown in fig. 1 and 2, the first adjusting holes 111 and the second adjusting holes 210 are all long holes, the long holes are arranged along the x direction, and the length is not more than 3 d-4 d, and d is the size of a single pixel unit in the x direction. If the size of a single pixel unit in the x direction is 1.6mm, the size of the elongated hole in the x direction may be set to 1.6mm to 6.4mm. The length of the long strip hole is set to be 3 d-4 d, considering that the damaged pixel unit is replaced when in special application or maintenance. When the offset (i.e., the offset) between the low-energy detector card 300 and the high-energy detector card 100 is 3d to 4d, the data transmission performance and the physical performance of the flexible data cable are not affected.
Further, as shown in fig. 1 and fig. 2, the first adjusting holes 111, the second adjusting holes 210 and the connecting holes 311 include multiple sets (e.g., three or four or five sets uniformly distributed) spaced along the circumferential direction of the y direction, and at least one set of the second adjusting holes 210 is provided with scale marks arranged along the x direction beside the second adjusting holes, and the scale marks are located on the side surface of the filter sheet 200 facing the low energy detector card 300. The fewer the number of scale markings, the lower the cost of manufacturing the filter sheet 200. The operation of adjusting the relative positions of the high-energy detector card 100 and the low-energy detector card 300 in the x direction can be performed more accurately by combining with the scale marks, and the dimension Δ x of the misalignment between the high-energy pixel unit 120 and the low-energy pixel unit 320 in the x direction is smaller than the dimension of one pixel unit in the x direction. When the high-energy pixel unit 120 and the low-energy pixel unit 320 are not dislocated in the x direction, the two units are conventional dual-energy detector cards, and at this time, the projections of the first bus interface 330 and the second bus interface in the x0z plane coincide; when the high-energy pixel unit 120 and the low-energy pixel unit 320 are dislocated in the x direction, the image quality can be improved by matching with the corresponding image processing algorithm.
Further, as shown in fig. 1 and fig. 2, a plurality of low-energy pixel units 320 are sequentially arranged on the low-energy detector control circuit board 310 along the x direction, and a plurality of high-energy pixel units 120 are sequentially arranged on the high-energy detector control circuit board 110 along the x direction, at this time, the dimension Δ x of the misalignment between the plurality of pixel units of the low-energy detector card 300 and the plurality of pixel units of the high-energy detector card 100 in the x direction is smaller than the dimension of one pixel unit in the x direction. Multiple low-energy pixel units are arranged on the low-energy detector control circuit board along the z direction in multiple rows, multiple high-energy pixel units are arranged on the high-energy detector control circuit board along the z direction in multiple rows, and the projections of the multiple low-energy pixel units of the low-energy detector card and the multiple high-energy pixel units of the high-energy detector card in the z direction are overlapped; or, as shown in fig. 1 and fig. 2, the plurality of low-energy pixel units 320 are only arranged in one row in the z-direction on the low-energy detector control circuit board 310, the plurality of high-energy pixel units 120 are only arranged in one row in the z-direction on the high-energy detector control circuit board 110, and the projections of the plurality of low-energy pixel units 320 of the low-energy detector card 300 and the plurality of high-energy pixel units 120 of the high-energy detector card 100 in the z-direction coincide; the above can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, which is not repeated herein, and all should fall within the protection scope of the present application.
In another embodiment, as shown in fig. 1 and 3, the first and second adjusting holes 111 and 210 are both elongated holes, the elongated holes are both arranged along the z-direction, and the length is not more than 3 e-4 e, e being the dimension of a single pixel unit in the z-direction. If the size of a single pixel unit in the z direction is 1.6mm, the size of the elongated hole in the z direction may be set to 1.6mm to 6.4mm. The length of the long strip hole is set to be 3 e-4 e, considering that the damaged pixel unit is replaced when in special application or maintenance. When the offset (i.e., the offset) between the low-energy detector card 300 and the high-energy detector card 100 is 3e to 4e, the data transmission performance and the physical performance of the flexible data cable are not affected.
Further, as shown in fig. 1 and 3, the first adjusting holes 111, the second adjusting holes 210 and the connecting holes 311 include multiple sets (e.g., three or four sets, etc.) arranged at intervals along the circumferential direction of the y direction, and at least one set of the second adjusting holes 210 is flanked by scale marks arranged along the z direction, the scale marks are located on the side of the filter sheet 200 facing the low energy detector card 300, the fewer the number of the scale marks is, the lower the manufacturing cost of the filter sheet 200 is, the operation of adjusting the relative positions of the high energy detector card 100 and the low energy detector card 300 in the z direction can be performed more accurately by combining the scale marks, and the dimension Δ z of the misalignment between the high energy pixel unit 120 and the low energy pixel unit 320 in the z direction is smaller than the dimension of one pixel unit in the z direction. When the high-energy pixel unit 120 and the low-energy pixel unit 320 are not dislocated in the z direction, the conventional dual-energy detector card is obtained; when the high-energy pixel unit 120 and the low-energy pixel unit 320 are dislocated in the z direction, the image quality can be improved by matching with the corresponding image processing algorithm.
Further, as shown in fig. 1 and fig. 3, a plurality of low-energy pixel units 320 are sequentially arranged on the low-energy detector control circuit board 310 along the x direction, and a plurality of high-energy pixel units 120 are sequentially arranged on the high-energy detector control circuit board 110 along the x direction, at this time, the dimension Δ z of the misalignment of the plurality of pixel units of the low-energy detector card 300 and the plurality of pixel units of the high-energy detector card 100 in the z direction is smaller than the dimension of one pixel unit in the z direction. Multiple low-energy pixel units are arranged on the low-energy detector control circuit board along the z direction in multiple rows, multiple high-energy pixel units are arranged on the high-energy detector control circuit board along the z direction in multiple rows, and the projections of the multiple low-energy pixel units of the low-energy detector card and the multiple high-energy pixel units of the high-energy detector card in the x direction are overlapped; alternatively, as shown in fig. 1 and 3, the plurality of low-energy pixel units 320 are only arranged in one row in the z-direction on the low-energy detector control circuit board 310, the plurality of high-energy pixel units 120 are only arranged in one row in the z-direction on the high-energy detector control circuit board 110, and the projections of the plurality of low-energy pixel units 320 of the low-energy detector card 300 and the plurality of high-energy pixel units 120 of the high-energy detector card 100 in the x-direction coincide; the above can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, which is not repeated herein, and all should fall within the protection scope of the present application.
In some examples, as shown in FIG. 1, a support structure 220 is provided between the filter sheet 200 and the high energy detector card 100, the support structure 220 being configured to maintain a spacing between the filter sheet 200 and the high energy detector card 100 at a set value, the set value being 4-5 mm.
Alternatively, as shown in FIG. 1, the support structure 220 may be a raised structure on the filter sheet 200; or the supporting structure can be a convex structure on the high-energy detector control circuit board of the high-energy detector card; the above can achieve the purpose of the present application, and the purpose of the present application does not depart from the design concept of the present invention, which is not repeated herein, and all should fall within the protection scope of the present application.
In some embodiments, the material of the filter sheet 200 is copper or aluminum, and the thickness of the filter sheet 200 is set to 0.3mm to 0.6mm. The filter sheet 200 is arranged to completely cover the high-energy detector card 100 in the y-direction, ensuring that the filter sheet 200 can completely filter X-rays of low energy spectrum.
The embodiment of the utility model provides a scanning apparatus (not shown in the figure), including X ray generating device (not shown in the figure) and any embodiment of the above-mentioned dual energy X ray detector, X ray generating device and low energy detector card 300 set up relatively in the first direction, form transmission path between X ray generating device and the low energy detector card 300, the object of examining passes through transmission path with invariable speed.
The scanning device has all the advantages of the dual-energy X-ray detector provided by any of the above embodiments, and details are not described herein.
To sum up, the embodiment of the present invention provides a dual-energy X-ray detector, in which a high-energy detector card, a filter sheet, a low-energy detector card and a data cable are assembled together, at least one of the high-energy detector card and the low-energy detector card can be adjusted in position in a second direction and/or a third direction relative to the filter sheet, and the structure can change the relative spatial positions of the pixel units of the high-energy detector and the low-energy detector more easily; in addition, the data flat cable is arranged as a flexible part, so that the data flat cable can be prevented from interfering the position adjustment process, and the data transmission performance and the physical performance of the data flat cable can be ensured.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" word structure "and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and thus, is not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A dual-energy X-ray detector is characterized by comprising a high-energy detector card, a filtering sheet, a low-energy detector card and a flexible data flat cable which are assembled together, wherein the high-energy detector card, the filtering sheet and the low-energy detector card are sequentially arranged in a first direction, and the data flat cable is electrically connected with the high-energy detector card and the low-energy detector card;
wherein at least one of the high energy detector card and the low energy detector card is positionally adjustable relative to the filter sheet in a second direction and/or a third direction, the first direction, the second direction and the third direction intersecting one another.
2. The dual-energy X-ray detector of claim 1, further comprising:
the high-energy detector card, the filter sheet and the low-energy detector card are assembled together through the threaded connector.
3. The dual-energy X-ray detector of claim 2, wherein one of the high-energy detector card and the low-energy detector card is provided with a connecting hole, the other is provided with a first adjusting hole, the filter sheet is provided with a second adjusting hole, and the threaded connector is sequentially inserted through the first adjusting hole, the second adjusting hole and the connecting hole.
4. The dual-energy X-ray detector of claim 3,
the connecting hole is a threaded hole, the threaded connecting piece is a bolt, and the bolt is screwed in the threaded hole; or
The connecting hole is a through hole, the threaded connecting piece comprises a bolt and a nut, the bolt extends out of the through hole, and the nut is screwed on the bolt.
5. The dual-energy X-ray detector of claim 3, wherein the first and second adjustment apertures are both elongated apertures; wherein:
the long holes are all arranged along the second direction, the length of each long hole is not more than 3 d-4 d, and d is the size of the pixel unit in the second direction; or
The long holes are all arranged along the third direction, the length of each long hole is not more than 3 e-4 e, and e is the size of the pixel unit in the third direction.
6. The dual-energy X-ray detector of claim 3,
the first adjusting holes, the second adjusting holes and the connecting holes comprise a plurality of groups which are arranged at intervals along the circumferential direction of the first direction, and scale marks which are arranged along the extending direction of the second adjusting holes are arranged beside at least one group of second adjusting holes;
wherein the first direction, the second direction and the third direction intersect perpendicularly in pairs.
7. The dual-energy X-ray detector of claim 3, wherein a support structure is disposed between the filter sheet and the high-energy detector card, the support structure configured to maintain a set spacing between the filter sheet and the high-energy detector card.
8. The dual-energy X-ray detector of claim 7, wherein the set value is 4-5 mm.
9. The dual-energy X-ray detector of any one of claims 1 to 8, wherein the low-energy detector card and the high-energy detector card each comprise:
a detector control circuit board;
the pixel units are sequentially arranged on the detector control circuit board along a second direction and/or a third direction; and
the flat cable interface is arranged on the detector control circuit board;
and the size of the dislocation of the plurality of pixel units of the low-energy detector card and the plurality of pixel units of the high-energy detector card in the second direction or the third direction is smaller than the size of one pixel unit.
10. A scanning device comprising an X-ray generating device and a dual energy X-ray detector according to any of claims 1 to 9, the X-ray generating device and the low energy detector card being arranged opposite to each other in a first direction, a transmission channel being formed between the X-ray generating device and the low energy detector card.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222677026.2U CN218726785U (en) | 2022-10-11 | 2022-10-11 | Dual-energy X-ray detector and scanning equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222677026.2U CN218726785U (en) | 2022-10-11 | 2022-10-11 | Dual-energy X-ray detector and scanning equipment |
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| CN218726785U true CN218726785U (en) | 2023-03-24 |
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| CN202222677026.2U Active CN218726785U (en) | 2022-10-11 | 2022-10-11 | Dual-energy X-ray detector and scanning equipment |
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| CN (1) | CN218726785U (en) |
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