X-ray detection device and security inspection equipment

Abstract

The utility model relates to the technical field of optical detection devices, and provides an X-ray detection device and security inspection equipment. Wherein the light source can emit light to form a scanning surface; the detector assemblies and the scanning surfaces are arranged in a one-to-one correspondence manner, each detector assembly comprises a plurality of detector bodies and mounting seats in one-to-one correspondence with the plurality of detector bodies, the plurality of mounting seats are sequentially arranged on the peripheral side of the light source in the plane where the scanning surfaces are located, shading shielding layers are arranged on the surfaces of the mounting seats, and light transmitting openings are formed in the sides, right facing the light source, of the mounting seats; the detector body is mounted in the mounting seat and can receive light passing through the light transmitting port, and the light received by all the detector bodies can form a continuous scanning surface. The light receiving range of the detector body is limited through the mounting seat, so that the imaging definition can be improved, the service life of the detector can be prolonged, and the whole security inspection equipment is more compact.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical detection device technical field especially, relates to a kind of X-ray detection device and security inspection equipment. BACKGROUND

[0002] X-ray detection device is the equipment using X-ray to penetrate object and image.Its core component is X-ray generator, i.e.

[0003] In the field of security inspection equipment, X-ray detection device is also used to obtain the internal image information of the measured piece.

[0004] As shown in Figure 1 And Figure 2 The transport length of the existing security inspection equipment is relatively large, i.e.

[0005] Therefore, an X-ray detection device and security inspection equipment are needed to solve the above technical problems. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing an X-ray detection device and security inspection equipment, which can reduce the optical path interference between detectors, improve the imaging clarity, and prolong the service life of the device, making the overall security inspection equipment more compact.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] The X-ray detection device comprises:

[0009] The light source can emit light to form a scanning surface.

[0010] The detector assembly is arranged one-to-one with the scanning surface, and comprises a plurality of detector bodies and a mounting seat corresponding to the plurality of detector bodies. In the plane of the scanning surface, the mounting seats are arranged in sequence on the side of the light source. The surface of the mounting seat is provided with a light shielding layer and a first light transmission opening on the side facing the light source. The detector body is installed in the mounting seat and can receive the light passing through the first light transmission opening. The light received by all the detector bodies can form a continuous scanning surface.

[0011] As a preferred technical solution of the X-ray detection device, the mounting seat is provided with a light shielding member at the first light transmission opening. The light shielding member can reduce the angle of the light entering the first light transmission opening.

[0012] As a preferred technical solution of the X-ray detection device, it comprises n scanning surfaces, and n≥2. All the scanning surfaces are perpendicular to the first axis.

[0013] As a preferred technical solution of the X-ray detection device, it comprises mounting seat a and mounting seat b. In the second direction, the opening direction of the first light transmission opening a of the mounting seat a is the same as the opening direction of the first light transmission opening b of the mounting seat b. The distance E between the first light transmission opening a and the first light transmission opening b in the first direction satisfies E≤C.

[0014] A is the distance between the ray source focal point of the light source a and the slit of the front collimator in the second direction. The mounting seat a is used to receive the scanning surface emitted by the light source a;

[0015] B is the distance between the ray source focal point of the light source a and the mounting seat b in the second direction;

[0016] C is the opening size of the first light transmission opening b in the first direction;

[0017] D is the opening size of the slit of the front collimator corresponding to the light source a in the first direction;

[0018] The first direction is perpendicular to the second direction, and the first axis is parallel to the first direction.

[0019] As a preferred technical solution of the X-ray detection device, the light source is provided with a plurality of light sources, including light source a and light source b. The light source a and the light source b are arranged around the first axis respectively. The first axis penetrates the scanning surface a formed by the light source a and the scanning surface b formed by the light source b. The scanning surface a is parallel to the scanning surface b.

[0020] As a preferred technical scheme of the X-ray detection device, the first axis is parallel to a first horizontal direction, the light source a and the light source b are arranged in a second horizontal direction, and in a vertical direction, the light source b is above the light source a; the first horizontal direction, the second horizontal direction and the vertical direction are perpendicular to each other.

[0021] As a preferred technical scheme of the X-ray detection device, a support is included, the support includes a first support member and a second support member arranged at intervals, and a third support member installed between the first support member and the second support member, and the mounting seat is installed on the third support member.

[0022] Further provided is a security inspection equipment including a channel and the X-ray detection device, and the channel passes through the scanning surface.

[0023] As a preferred technical scheme of the security inspection equipment, a plurality of channels are arranged in parallel, and the X-ray detection device is arranged in one-to-one correspondence with the plurality of channels.

[0024] As a preferred technical scheme of the security inspection equipment, a conveying device is installed in the channel, and the object to be detected can pass through the conveying device to sequentially pass through the plurality of scanning surfaces.

[0025] The utility model has the advantages of:

[0026] The utility model provides a kind of X-ray detection device and security inspection equipment.Light source can emit light to form scanning surface;Detector assembly is arranged in one-to-one correspondence with scanning surface, and detector assembly includes multiple detector bodies, and mounting seat corresponding to multiple detector bodies, in the plane where scanning surface is, multiple mounting seats are sequentially arranged in the circumferential side of light source, the surface of mounting seat is provided with light shielding layer and the side of light source is opened with light transmission port, and detector body is installed in mounting seat and can receive light passing through light transmission port, and the light received by all detector bodies can form continuous scanning surface.

[0027] The light emitted by the light source passes through the object under test and is received by the detector body, forming an image of the object under test. To receive a large scanning area, the X-ray detection device includes multiple detector bodies arranged around the light source, forming a semi-enclosed structure. Each detector body can acquire a portion of the scanning area, and the portions acquired by all detector bodies can be pieced together to form a relatively complete scanning area. Each detector is equipped with a dedicated mounting base. The surface of the mounting base is provided with a light-shielding layer that blocks external light from shining onto the detector body from areas other than the first light-transmitting port. The mounting base has a first light-transmitting port on the side facing the light source. This first light-transmitting port allows most of the light emitted from the direction of the light source to enter, while blocking most of the light entering from other directions, reducing noise in the signal received by the detector body and making the X-ray detection device's image clearer. Furthermore, the mounting base has a through hole along its length, forming a mounting cavity, into which the detector body can be inserted. A first light-transmitting opening is formed on one side wall of the mounting base along its length, penetrating both the thickness and length directions of the side wall. The sensing part of the detector body faces the first light-transmitting opening to receive the scanning surface. In this way, the mounting base does not obstruct the scanning surface of the detector body, allowing the light from multiple detector bodies to form a continuous scanning surface. The other parts of the detector body are enclosed by the mounting base, preventing them from being exposed to light. This design also extends the service life of the detector body. Moreover, the X-ray detection device makes the overall security inspection equipment more compact. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of a single-channel security inspection device in the existing technology;

[0030] Figure 2 This is a schematic diagram of the structure of a dual-channel security inspection device in the existing technology;

[0031] Figure 3 This is a schematic diagram of the structure of the mounting base provided in an embodiment of this utility model;

[0032] Figure 4 This is a schematic diagram of the detector assembly provided in an embodiment of the present invention;

[0033] Figure 5This is an assembly diagram of the bracket and detector assembly provided in an embodiment of the present utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the X-ray detection device provided in this embodiment of the utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the light source and detector assembly provided in this embodiment of the utility model. Figure 1 ;

[0036] Figure 8 This is a schematic diagram of the structure of the light source and detector assembly provided in this embodiment of the utility model. Figure 2 ;

[0037] Figure 9 This is a schematic diagram of the structure of the security inspection equipment provided in this embodiment of the utility model;

[0038] Figure 10 This is a schematic diagram of the structure of a single-channel security inspection device provided in this embodiment of the present invention. Figure 1 ;

[0039] Figure 11 This is a schematic diagram of the structure of a single-channel security inspection device provided in this embodiment of the present invention. Figure 2 ;

[0040] Figure 12 This is an assembly diagram of two security inspection devices with a single channel provided in an embodiment of the present invention;

[0041] Figure 13 This is a structural schematic diagram of a security inspection device with dual channels provided in an embodiment of the present invention.

[0042] In the picture:

[0043] X, first direction; Y, second direction; Z, vertical direction;

[0044] 100, Light source; 100a, Light source a; 100b, Light source b; 110, Scanning surface; 110a, Scanning surface a; 110b, Scanning surface b;

[0045] 200. Detector assembly; 210. Detector body; 220. Mounting base; 220a. Mounting base a; 220b. Mounting base b; 221. First light-transmitting port; 221a. First light-transmitting port a; 221b. First light-transmitting port b; 230. Light-shielding component; 231. Second light-transmitting port; 240. Front collimator;

[0046] 300, bracket; 310, first support component; 320, second support component; 330, third support component;

[0047] 400, Channel; 410, First Channel; 420, Second Channel;

[0048] 500. Conveying device;

[0049] 600. Test Component;

[0050] 700. Housing; 710. First sidewall; 720. Lead curtain;

[0051] 1. Equipped with single-channel security screening equipment; 2. Equipped with dual-channel security screening equipment. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0053] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0054] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0055] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0056] likeFigures 3 to 8 As shown, this utility model provides an X-ray detection device, including a light source 100 and a detector assembly 200. The light source 100 emits light to form a scanning surface 110. The detector assembly 200 is arranged in a one-to-one correspondence with the scanning surface 110. The detector assembly 200 includes multiple detector bodies 210 and mounting bases 220 corresponding to each detector body 210. Within the plane of the scanning surface 110, the mounting bases 220 are arranged sequentially around the light source 100. Each mounting base 220 has a light-shielding layer on its surface and a first light-transmitting opening 221 on the side facing the light source 100. The detector bodies 210 are mounted within the mounting bases 220 and can receive light passing through the first light-transmitting opening 221. The light received by all detector bodies 210 can form a continuous scanning surface 110.

[0057] The light emitted by the light source 100 passes through the test piece 600 and is received by the detector body 210 to form an image of the test piece 600. This is common knowledge in X-ray detection and imaging, and will not be described in detail here.

[0058] In order to receive a large scanning area 110, the X-ray detection device includes multiple detector bodies 210. The multiple detector bodies 210 are arranged around the periphery of the light source 100, forming a semi-enclosed structure around the light source 100. Each detector body 210 can acquire a portion of the scanning area 110, and the portions of the scanning area 110 acquired by all detector bodies 210 can be pieced together to form a relatively complete scanning area 110.

[0059] However, light is reflected or refracted after it shines on an object. In addition to receiving light from the scanning surface 110, the detector body 210 also receives light reflected or refracted by other detector bodies 210. Obviously, this part of the light interferes with the optical path of the detector body 210, resulting in blurred images. To address this, in this embodiment, each detector body 210 is equipped with a dedicated mounting base 220. The surface of the mounting base 220 is provided with a light-shielding layer, which can block external light from shining on the detector body 210 from areas other than the first light-transmitting port 221. The mounting base 220 has a first light-transmitting port 221 on the side facing the light source 100. The first light-transmitting port 221 allows most of the light emitted from the direction of the light source 100 to enter, while blocking most of the light entering from other directions, thus reducing noise in the signal received by the detector body 210 and making the image of the X-ray detection device clearer.

[0060] For example, the mounting base 220 has a through hole along its length to form a mounting cavity, and the detector body 210 can be inserted into the mounting cavity along its length. One side wall of the mounting base 220 has a first light-transmitting opening 221 along its length. The first light-transmitting opening 221 penetrates the side wall of the mounting base 220 in both the thickness and length directions. The sensing part of the detector body 210 faces the first light-transmitting opening 221 and is used to receive the scanning surface 110. In this way, the mounting base 220 will not block the scanning surface 110 of the detector body 210, so that the light obtained by multiple detector bodies 210 can form a continuous scanning surface 110. The other parts of the detector body 210 are wrapped by the mounting base 220 to avoid being exposed to light. Thus, the setting of the mounting base 220 can also extend the service life of the detector body 210.

[0061] Preferably, in order to achieve the best imaging effect, the detector body 210 is perpendicular to the corresponding scanning surface 110 and perpendicular to a light ray emitted from the corresponding light source 100.

[0062] For example, the surface of the mounting base 220 forms a light-shielding layer by providing a coating or structural layer containing lead and / or tungsten.

[0063] It should be noted that the light-shielding properties of lead and tungsten are common knowledge to those skilled in the art, and will not be elaborated upon here.

[0064] Optionally, the mounting base 220 is provided with a light-shielding member 230 at the first light-transmitting opening 221. The light-shielding member 230 can reduce the angle at which light enters the first light-transmitting opening 221. In this way, by adding the light-shielding member 230, the mounting base 220 can further restrict light from entering the first light-transmitting opening 221 and being received by the detector body 210 in directions other than those perpendicular to the detector body 210, thus preventing imaging interference.

[0065] For example, in this embodiment, the first light-transmitting port 221 only includes two side walls located in the thickness direction of the scanning surface 110. Two light-shielding members 230 are provided, with one light-shielding member 230 installed on each side wall. The light-shielding members 230 are installed on the side of the mounting base 220 facing away from the detector body 210. The two light-shielding members 230 are parallel to the scanning surface 110, and a second light-transmitting port 231 is formed between the two light-shielding members 230. Light passes through the second light-transmitting port 231 and the first light-transmitting port 221 in sequence and is then received by the detector body 210. Since the second light-transmitting port 231 is closer to the light source 100, the angle formed by the connection between the detector body 210 and the edge of the second light-transmitting port 231 is smaller than the angle formed by the connection between the detector body 210 and the edge of the first light-transmitting port 221. In this way, the angle range of light acquisition by the detector body 210 is reduced.

[0066] In other embodiments, the light-shielding member 230 is mounted on only one of the side walls.

[0067] In other embodiments, the light-shielding member 230 is installed inside the first light-transmitting opening 221, which can fill part of the first light-transmitting opening 221, thereby reducing the light-entry range.

[0068] For example, the light-shielding member 230 is integrally formed with the mounting base 220.

[0069] For example, the light-shielding member 230 is detachably connected to the mounting base 220, and the light-inlet range can be adjusted by removing or replacing the light-shielding member 230 of different sizes; or the light-shielding member 230 is movably connected to the mounting base 220, and the light-shielding member 230 can move or lock relative to the mounting base 220, thereby adjusting the light-inlet range.

[0070] Optionally, the X-ray detection device includes n scanning surfaces 110, satisfying n≥2, and all scanning surfaces 110 are perpendicular to the first axis.

[0071] In one embodiment, a channel 400 of the X-ray detection device is provided with multiple scanning surfaces 110, and the test piece 600 placed on the channel 400 can pass through the multiple scanning surfaces 110 in sequence. In this way, by scanning through multiple scanning surfaces 110, more accurate feature information of the test piece 600 can be obtained, so as to achieve clear imaging.

[0072] In another embodiment, at least one scanning surface 110 is provided on each of the multiple channels 400 of the X-ray inspection device. The multiple scanning surfaces 110 can operate independently, scanning the workpiece 600 on the corresponding channel 400, thereby improving inspection efficiency.

[0073] Optionally, the X-ray detection device includes a mounting base a220a and a mounting base b220b. In the second direction Y, the opening direction of the first light-transmitting port a221a of the mounting base a220a is the same as the opening direction of the first light-transmitting port b221b of the mounting base b220b. The distance E between the first light-transmitting ports a221a and b221b in the first direction X satisfies [condition]. A is the distance between the focal point of the light source a100a and the slit of its front collimator 240 in the second direction Y, and the mounting base a220a is used to receive the scanning surface 110 emitted by the light source a100a; B is the distance between the focal point of the light source a100a and the mounting base b220b in the second direction Y; C is the opening size of the first light-transmitting port b221b in the first direction X; D is the opening size of the slit of the front collimator 240 corresponding to the light source a100a in the first direction X; the first direction X is perpendicular to the second direction Y, and the first axis is parallel to the first direction X.

[0074] Specifically, the formula The derivation process is as follows, such as Figure 7 and Figure 8 As shown, the focal point of the light source a100a is denoted as point O. The intersection points of the light rays from light source a100a with the slit edge of the front collimator 240 are denoted as P1 and P2, respectively. The two endpoints of the projection of the light rays from light source a100a onto the mounting base b220b are denoted as Q1 and Q2, respectively, forming two triangles: the first triangle formed by connecting OP1 and P2, and the second triangle formed by connecting OQ1 and Q2. In the first triangle, the side length formed by connecting P1 and P2 is D, and the corresponding height is A; in the second triangle, the side length formed by connecting Q1 and Q2 is F, and the corresponding height is B.

[0075] First, we prove that the first and second triangles are similar triangles. According to the geometric optics theorem, light rays travel in straight lines, so points OP1 and Q1 are collinear, and points OP2 and Q2 are also collinear. Furthermore, based on the known relative positions of the light source 100, the collimator 240, and the detector body 210 in the X-ray detection device, we know that the line connecting P1 and P2 is parallel to the line connecting Q1 and Q2. According to the property of parallel lines, the corresponding angles formed by the intersection of two parallel lines with a third line are equal. Thus, the interior angles of the first triangle and the interior angles of the second triangle are correspondingly equal, therefore the two triangles are similar triangles.

[0076] We can derive this axiom using similar triangles. According to the properties of similar triangles, the ratio k of corresponding sides is equal between similar triangles, therefore F = (B*D) / A.

[0077] Generally, the default scanning surface 110a is formed at the midline position of line segment Q1Q2, and the detector body 210 in the mounting base b220b only receives light perpendicular to it. Thus, in order to satisfy the condition that the light from the light source a100a cannot be received by the detector body 210 in the mounting base b220b, the distance E between the first light-transmitting port a221a and the first light-transmitting port b221b in the first direction X is satisfied. Substituting F = (B*D) / A, we get

[0078] Thus, according to the above formula, the spacing between the first light-transmitting openings 221 of two adjacent mounting bases 220 on the same side along the first axis can not only avoid the detector receiving light from the adjacent light source 100, which would lead to image blurring or data errors, but also achieve a compact design of the adjacent mounting bases 220, reducing the overall volume of the security inspection equipment in the first direction X.

[0079] For example, if A > 200mm, B ≈ 2000mm, C < 6mm, and D < 2mm, and we substitute these values ​​into the formula above, when E satisfies the condition that E > 13mm, two adjacent detector bodies 210 will not receive light from each other.

[0080] Optionally, multiple light sources 100 are provided, including light source a100a and light source b100b. Light sources a100a and b100b are arranged around a first axis, which passes through the scanning surface 110a formed by light source a100a and the scanning surface b110b formed by light source b100b. The scanning surface 110a and the scanning surface b110b are parallel. In this way, since light sources a100a and b100b illuminate the workpiece 600 at different angles, a dual-view X-ray scan can be formed, enabling the acquisition of more accurate feature information of the workpiece 600.

[0081] In other embodiments, more light sources 100 may be provided to form a multi-view scanning.

[0082] Optionally, the first axis is parallel to the first horizontal direction, and the light source a100a and the light source b100b are spaced apart along the second horizontal direction. Along the vertical direction Z, the light source b100b is located above the light source a100a; the first horizontal direction, the second horizontal direction, and the vertical direction Z are perpendicular to each other.

[0083] In common X-ray inspection devices, to ensure that the test piece 600 can pass smoothly through the channel 400, the channel 400 is designed to extend horizontally. The support surface of the channel 400 supports the test piece 600 in the direction of gravity, meaning that the bottom of the test piece 600 contacts the channel 400. Generally, the support surface of the channel 400 is not transparent. Therefore, in this embodiment, light source a100a is used as a side light source and light source b100b is used as a top light source. Light source a100a and light source b100b form a dual-view scanning, which can more accurately obtain the feature information of the test piece 600.

[0084] Optionally, the X-ray detection device includes a bracket 300, which includes a first support member 310 and a second support member 320 spaced apart, and a third support member 330 installed between the two. The mounting base 220 is installed on the third support member 330. In this way, by connecting multiple detector assemblies 200 through the bracket 300, the relative positions of the detector assemblies 200 can be kept constant, maintaining a preset angle.

[0085] For example, the bracket 300 is bent in a V-shape, L-shape, C-shape, etc., and the light source 100 is located on the side of the inscribed circle of the bracket 300, that is, the bracket 300 forms a partial enclosure structure for the light source 100. Figure 6 As shown, the bracket 300 is arranged in an L-shape.

[0086] For example, the mounting base 220 is detachably connected to the third support member 330.

[0087] For example, the mounting base 220 is movably connected to the third support member 330 and can be moved or locked relative to each other, so that the detector body 210 can be moved by moving the mounting base 220.

[0088] For example, the third support member 330 is detachably installed between the first support member 310 and the second support member 320. In this way, by replacing the third support member 330 with different styles, the angle between the mounting base 220 and the light source 100 can be adjusted.

[0089] like Figure 9 As shown, this utility model also provides a security inspection device, including a channel 400 and the aforementioned X-ray detection device, with the channel 400 passing through the scanning surface 110. Thus, when the object under test 600 passes through the channel 400, it passes through the scanning surface 110, and the X-ray detection device completes the detection of the object under test 600, acquiring approximate images of the interior and exterior of the object under test 600.

[0090] Optionally, multiple channels 400 can be set in parallel, with each X-ray detection device corresponding to one of the multiple channels 400.

[0091] For example, two channels 400 are arranged in parallel, namely a first channel 410 and a second channel 420; the first channel 410 is configured with a first light source and a corresponding first detector assembly; the second channel 420 is configured with a second light source and a corresponding second detector assembly.

[0092] Optionally, a conveying device 500 is installed in the channel 400, through which the part to be tested can pass through multiple scanning surfaces 110 in sequence.

[0093] like Figures 10 to 13 As shown, optionally, the dual-channel security inspection device 2 can be assembled from two single-channel security inspection devices 1. Specifically, the security inspection device also includes a housing 700, and the X-ray detection device and the channel 400 are both installed inside the housing 700. When two single-channel security inspection devices 1 are assembled into a dual-channel security inspection device 2, the adjacent first sidewalls 710 of the two single-channel security inspection devices 1 can be removed, so that the two channels 400 are located in a connected cavity, and a lead curtain 720 is connected between the two housings 700. The lead curtain 720 is set perpendicular to the extension direction of the channel 400 to prevent the light emitted by the light source 100 from passing through the gap between the two housings 700.

[0094] Furthermore, each channel 400 of the dual-channel security inspection equipment 2 is equipped with a side light source and a top light source. Along the first direction X, the side light sources and top light sources of the two channels 400 are arranged in the same way, and the two side light sources are located on the same side of the two top light sources.

[0095] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An X-ray detection device, characterized in that, include: A light source (100) capable of emitting light to form a scanning surface (110); A detector assembly (200) is provided, which is configured one-to-one with the scanning surface (110). The detector assembly (200) includes multiple detector bodies (210) and mounting bases (220) corresponding one-to-one with the multiple detector bodies (210). In the plane where the scanning surface (110) is located, the multiple mounting bases (220) are arranged sequentially around the light source (100). The surface of the mounting base (220) is provided with a light-shielding layer and a first light-transmitting port (221) is opened on the side facing the light source (100). The detector body (210) is installed in the mounting base (220) and can receive the light passing through the first light-transmitting port (221). The light received by all the detector bodies (210) can form a continuous scanning surface (110).

2. The X-ray detection device according to claim 1, characterized in that, The mounting base (220) is provided with a light-shielding member (230) at the first light-transmitting opening (221), and the light-shielding member (230) can reduce the angle at which the light enters at the first light-transmitting opening (221).

3. The X-ray detection device according to claim 1, characterized in that, It includes n scanning surfaces (110) such that n≥2, and all the scanning surfaces (110) are perpendicular to the first axis.

4. The X-ray detection device according to claim 3, characterized in that, The device includes mounting base a (220a) and mounting base b (220b). In the second direction (Y), the opening direction of the first light-transmitting opening a (221a) of mounting base a (220a) is the same as the opening direction of the first light-transmitting opening b (221b) of mounting base b (220b). The distance E between the first light-transmitting opening a (221a) and the first light-transmitting opening b (221b) in the first direction (X) satisfies [the following condition]. A is the distance between the focal point of the light source a (100a) and the slit of its front collimator (240) in the second direction (Y), and the mounting base a (220a) is used to receive the scanning surface (110) emitted by the light source a (100a). B is the distance from the focal point of the light source a (100a) to the mounting base b (220b) in the second direction (Y); C is the opening size of the first light-transmitting opening b (221b) in the first direction (X); D is the opening size of the slit of the precollimator (240) corresponding to the light source a (100a) in the first direction (X); The first direction (X) is perpendicular to the second direction (Y), and the first axis is parallel to the first direction (X).

5. The X-ray detection device according to claim 3, characterized in that, The light source (100) is provided in multiple ways, including light source a (100a) and light source b (100b). The light source a (100a) and the light source b (100b) are respectively arranged around the first axis. The first axis passes through the scanning surface a (110a) formed by the light source a (100a) and the scanning surface b (110b) formed by the light source b (100b). The scanning surface a (110a) and the scanning surface b (110b) are parallel.

6. The X-ray detection device according to claim 5, characterized in that, The first axis is parallel to the first horizontal direction, and the light source a (100a) and the light source b (100b) are spaced apart along the second horizontal direction and along the vertical direction (Z), the light source b (100b) is located above the light source a (100a); the first horizontal direction, the second horizontal direction and the vertical direction (Z) are perpendicular to each other.

7. The X-ray detection device according to any one of claims 1-6, characterized in that, The bracket (300) includes a first support member (310) and a second support member (320) spaced apart, and a third support member (330) installed between the two, and the mounting base (220) is installed on the third support member (330).

8. Security inspection equipment, characterized in that, Includes a channel (400) and the X-ray detection apparatus according to any one of claims 1-7, wherein the channel (400) passes through the scanning surface (110).

9. The security inspection equipment according to claim 8, characterized in that, Multiple channels (400) are arranged in parallel, and the X-ray detection device is arranged in a one-to-one correspondence with each of the multiple channels (400).

10. The security inspection equipment according to claim 8, characterized in that, A conveying device (500) is installed in the channel (400), through which the part to be tested can pass through multiple scanning surfaces (110) in sequence.

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