X-ray detection device and security inspection equipment

Abstract

The invention 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 present invention relates to the technical field of optical detection devices, and in particular to an X-ray detection device and security inspection equipment. Background Art

[0002] X-ray detection devices are devices that use X-rays to penetrate objects and form images. Its core component is the X-ray generator, which is a light source that can generate X-rays. When the rays penetrate an object, they will be attenuated to varying degrees due to the different internal structures of the object (such as density differences). The detector then receives the remaining X-rays and converts them into electrical or digital signals. After processing, these signals can display images of the internal structure of the object on the screen.

[0003] In the field of security inspection equipment, X-ray inspection devices are now widely used to obtain internal image information of the object to be tested.

[0004] like Figure 1 and Figure 2 As shown, the transport length of the existing security inspection equipment is relatively large, that is, its length dimension is relatively large and difficult to reduce. The reason is that if multiple X-ray detection devices are arranged in the security inspection equipment, multiple scanning surfaces are formed to scan the workpiece to be tested. Generally, an X-ray generator is equipped with multiple detectors to receive signals. As a result, if the spacing is not enough, the light emitted by the light source is refracted and / or reflected by the workpiece to be tested and / or other detectors to form interference light. When the detector receives the interference light, it will cause problems such as blurred imaging and signal error.

[0005] Therefore, there is an urgent need for an X-ray detection device and security inspection equipment to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide an X-ray detection device and security inspection equipment, which can reduce the optical path interference between detectors, improve the clarity of their imaging, and extend their own service life, making the security inspection equipment more compact as a whole.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] X-ray detection device, including:

[0009] A light source, the light source being capable of emitting light to form a scanning surface;

[0010] A detector assembly, wherein the detector assembly is arranged in one-to-one correspondence with the scanning surface, and the detector assembly includes a plurality of detector bodies and mounting seats corresponding to the plurality of detector bodies in one-to-one correspondence. In the plane where the scanning surface is located, the plurality of mounting seats are sequentially arranged around the light source, a light-shielding layer is provided on the surface of the mounting seat, and a first light-transmitting port is provided on the side facing the light source. The detector bodies are installed in the mounting seats and can receive the light passing through the first light-transmitting port, and the light received by all the detector bodies can form a continuous scanning surface.

[0011] As a preferred technical solution of the above-mentioned X-ray detection device, the above-mentioned mounting seat is provided with a shading member at the above-mentioned first light transmission port, and the above-mentioned shading member can reduce the angle of incidence of the above-mentioned light at the above-mentioned first light transmission port.

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

[0013] As a preferred technical solution of the above-mentioned X-ray detection device, it includes a mounting seat a and a mounting seat b. In the second direction, the opening direction of the first light-transmitting port a of the above-mentioned mounting seat a is the same as the opening direction of the first light-transmitting port b of the above-mentioned mounting seat b. The spacing E between the first light-transmitting port a and the first light-transmitting port b in the first direction satisfies, satisfies

[0014] A is the distance between the focus of the radiation source of the light source a and the slit of the front collimator in the second direction, and the mounting seat a is used to receive the scanning surface emitted by the light source a;

[0015] B is the distance between the focus of the radiation source of the light source a and the mounting base b in the second direction;

[0016] C is the opening size of the first light-transmitting 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 above-mentioned X-ray detection device, the above-mentioned light source is provided in plurality, including light source a and light source b. The above-mentioned light source a and the above-mentioned light source b are arranged around the above-mentioned first axis respectively. The above-mentioned first axis passes through the scanning surface a formed by the above-mentioned light source a and the scanning surface b formed by the above-mentioned light source b. The above-mentioned scanning surface a is parallel to the above-mentioned scanning surface b.

[0020] As a preferred technical solution for the above-mentioned X-ray detection device, the above-mentioned first axis is parallel to the first horizontal direction, the above-mentioned light source a and the above-mentioned light source b are arranged at intervals along the second horizontal direction, and along the vertical direction, the above-mentioned light source b is located above the above-mentioned light source a; the above-mentioned first horizontal direction, the above-mentioned second horizontal direction and the above-mentioned vertical direction are perpendicular to each other.

[0021] As a preferred technical solution of the above-mentioned X-ray detection device, it includes a bracket, which includes a first support member and a second support member arranged at an interval, and a third support member installed therebetween, and the above-mentioned mounting seat is installed on the above-mentioned third support member.

[0022] A security inspection device is also provided, comprising a channel and the above-mentioned X-ray detection device, wherein the above-mentioned channel passes through the above-mentioned scanning surface.

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

[0024] As a preferred technical solution of the above-mentioned security inspection equipment, a conveying device is installed in the above-mentioned channel, and the parts to be inspected can pass through the above-mentioned plurality of scanning surfaces in sequence through the above-mentioned conveying device.

[0025] Beneficial effects of the present invention:

[0026] The present invention provides an X-ray detection device and security inspection equipment. A light source can emit light to form a scanning surface; a detector assembly is arranged one-to-one with the scanning surface, and the detector assembly includes a plurality of detector bodies and mounting seats corresponding to the plurality of detector bodies. In the plane where the scanning surface is located, the plurality of mounting seats are sequentially arranged around the light source, a light shielding layer is arranged on the surface of the mounting seat, and a light-transmitting port is opened on the side facing the light source. The detector body is installed 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.

[0027] The light emitted by the light source passes through the test piece and is received by the detector body to form an image of the test piece. In order to be able to receive a scanning surface with a larger range, the X-ray detection device includes multiple detector bodies, which are arranged around the periphery of the light source to form a semi-enclosed structure for the light source. Each detector body can obtain a part of the scanning surface, and the scanning surface parts obtained by all detector bodies can be pieced together into a relatively complete scanning surface. Each detector is equipped with an exclusive mounting seat, and a light-shielding layer is provided on the surface of the mounting seat. The light-shielding layer can block external light from irradiating the detector body from areas other than the first light-transmitting port. A first light-transmitting port is provided on the side of the mounting seat facing the light source. The first light-transmitting port can allow most of the light emitted from the direction of the light source to enter, intercept most of the light emitted from other directions, reduce the noise of the signal received by the detector body, and make the imaging of the X-ray detection device clearer. Furthermore, the mounting seat is provided with a through hole along its length direction to form a mounting cavity, and the detector body can be inserted into the mounting cavity along the length direction; one side wall of the mounting seat is provided with a first light-transmitting port along the length direction, and the first light-transmitting port penetrates the side wall of the mounting seat in both the thickness direction and the length direction, and the sensing part of the detector body faces the first light-transmitting port to receive the scanning surface, so that the mounting seat will not block the scanning surface of the detector body, so that the light obtained by multiple detector bodies can form a continuous scanning surface, and the other parts of the detector body are wrapped by the mounting seat to avoid being exposed to light, so that the setting of the mounting seat can also extend the service life of the detector body. And the X-ray detection device also makes the security inspection equipment more compact as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the structure of a single-channel security inspection equipment in the prior art;

[0030] Figure 2 It is a schematic diagram of the structure of a dual-channel security inspection device in the prior art;

[0031] Figure 3 is a schematic structural diagram of a mounting base provided by an embodiment of the present invention;

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

[0033] Figure 5is a schematic diagram of the assembly of a bracket and a detector assembly provided in an embodiment of the present invention;

[0034] Figure 6 is a schematic structural diagram of an X-ray detection device provided by an embodiment of the present invention;

[0035] Figure 7 The structure of the light source and detector assembly provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 8 The structure of the light source and detector assembly provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0037] Fig. 9 It is a structural schematic diagram of a security inspection device provided by an embodiment of the present invention;

[0038] Fig.10 The structure of the security inspection device with a single channel provided by the embodiment of the present invention is shown in FIG. Figure 1 ;

[0039] Fig.11 The structure of the security inspection device with a single channel provided by the embodiment of the present invention is shown in FIG. Figure 2 ;

[0040] Fig.12 It is a schematic diagram of the assembly of two single-channel security inspection devices provided by an embodiment of the present invention;

[0041] Fig.13 It is a schematic diagram of the structure of a security inspection device with dual channels provided in an embodiment of the present invention.

[0042] In the figure:

[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 seat; 220a, mounting seat a; 220b, mounting seat b; 221, first light transmission port; 221a, first light transmission port a; 221b, first light transmission port b; 230, light shielding member; 231, second light transmission port; 240, front collimator;

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

[0047] 400, channel; 410, first channel; 420, second channel;

[0048] 500, conveying device;

[0049] 600, piece to be tested;

[0050] 700, housing; 710, first side wall; 720, lead curtain;

[0051] 1. Equipped with single-channel security inspection equipment; 2. Equipped with dual-channel security inspection equipment. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0053] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0055] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0056] like Figures 3 to 8As shown, the present invention provides an X-ray detection device, including a light source 100 and a detector assembly 200. The light source 100 can emit light to form a scanning surface 110; the detector assembly 200 is arranged one-to-one with the scanning surface 110, and the detector assembly 200 includes a plurality of detector bodies 210 and mounting seats 220 corresponding to the plurality of detector bodies 210. In the plane where the scanning surface 110 is located, the plurality of mounting seats 220 are sequentially arranged around the light source 100, the surface of the mounting seat 220 is provided with a light shielding layer, and a first light transmission port 221 is provided on the side facing the light source 100. The detector body 210 is installed in the mounting seat 220 and can receive light passing through the first light transmission port 221, and the light received by all the detector bodies 210 can form a continuous scanning surface 110.

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

[0058] In order to be able to receive a scanning surface 110 with a larger range, the X-ray detection device includes a plurality of detector bodies 210, and the plurality of detector bodies 210 are arranged around the periphery of the light source 100 to form a structure similar to a semi-enclosed portion of the light source 100. Each detector body 210 can acquire a portion of the scanning surface 110, and the portions of the scanning surface 110 acquired by all the detector bodies 210 can be pieced together into a relatively complete scanning surface 110.

[0059] However, after the light is irradiated on the object, it will be reflected / refracted. In addition to receiving the scanning surface 110, the detector body 210 will also receive the light reflected / 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 imaging. To this end, in this embodiment, a dedicated mounting seat 220 is configured for each detector body 210. The surface of the mounting seat 220 is provided with a light shielding layer. The light shielding layer can block external light from irradiating the detector body 210 from the area other than the first light-transmitting port 221. The mounting seat 220 is provided with a first light-transmitting port 221 on the side facing the light source 100. The first light-transmitting port 221 can allow most of the light emitted from the direction of the light source 100 to enter, intercept most of the light emitted from other directions, reduce the noise of the signal received by the detector body 210, and make the imaging of the X-ray detection device clearer.

[0060] Exemplarily, the mounting base 220 is provided with a through hole along its length direction to form a mounting cavity, and the detector body 210 can be inserted into the mounting cavity along the length direction; one of the side walls of the mounting base 220 is provided with a first light-transmitting opening 221 along the length direction, and the first light-transmitting opening 221 penetrates the side wall of the mounting base 220 in both the thickness direction and the length direction. The sensing part of the detector body 210 is opposite to 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, and other parts of the detector body 210 are wrapped by the mounting base 220 to avoid being exposed to light. In this way, 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 beam emitted from the corresponding light source 100 .

[0062] Exemplarily, the surface of the mounting base 220 is provided with a coating or a structural layer containing lead and / or tungsten to form a light shielding layer.

[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 on here.

[0064] Optionally, the mounting base 220 is provided with a light shielding member 230 at the first light transmission port 221, and the light shielding member 230 can reduce the angle of light incident at the first light transmission port 221. In this way, the mounting base 220 can further limit the light in directions other than the direction perpendicular to the detector body 210 from entering the first light transmission port 221 and being received by the detector body 210 by adding the light shielding member 230, thereby causing imaging interference.

[0065] Exemplarily, in this embodiment, the first light-transmitting opening 221 only includes two side walls located in the thickness direction of the scanning surface 110, two light-shielding members 230 are provided, and one light-shielding member 230 is installed on each side wall. The light-shielding member 230 is installed on the side of the mounting seat 220 facing away from the detector body 210, and the two light-shielding members 230 are parallel to the scanning surface 110. A second light-transmitting opening 231 is formed between the two light-shielding members 230, and the light passes through the second light-transmitting opening 231 and the first light-transmitting opening 221 in sequence and is received by the detector body 210. Since the second light-transmitting opening 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 opening 231 is smaller than the angle formed by the connection between the detector body 210 and the edge of the first light-transmitting opening 221, thereby reducing the angle range of the detector body 210 to obtain light.

[0066] In other embodiments, the shading member 230 is only installed on one of the side walls.

[0067] In other embodiments, the light shielding member 230 is installed in the first light-transmitting opening 221 , and can fill a portion of the first light-transmitting opening 221 , thereby narrowing the light-entering range.

[0068] Exemplarily, the shading member 230 and the mounting base 220 are integrally formed.

[0069] Exemplarily, the shading member 230 is detachably connected to the mounting seat 220, and the light entering range can be adjusted by removing or replacing the shading member 230 of different sizes; or the shading member 230 is movably connected to the mounting seat 220, and the shading member 230 can be relatively movable or locked with the mounting seat 220, thereby adjusting the light entering 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 a plurality of scanning surfaces 110, and the test piece 600 placed on the channel 400 can sequentially pass through the plurality of scanning surfaces 110. Thus, by scanning the plurality of scanning surfaces 110, more accurate feature information of the test piece 600 can be obtained so that a clear image can be obtained.

[0072] In another embodiment, at least one scanning surface 110 is disposed on each of the multiple channels 400 of the X-ray detection device. The multiple scanning surfaces 110 can operate independently to scan the test pieces 600 on the corresponding channels 400, thereby improving the detection efficiency.

[0073] Optionally, the X-ray detection device includes a mounting seat a220a and a mounting seat b220b. In the second direction Y, the opening direction of the first light-transmitting port a221a of the mounting seat a220a is the same as the opening direction of the first light-transmitting port b221b of the mounting seat b220b. The spacing E between the first light-transmitting port a221a and the first light-transmitting port b221b in the first direction X satisfies, satisfying A is the distance between the ray source focus of the light source a100a and the slit of the front collimator 240 in the second direction Y, and the mounting seat a220a is used to receive the scanning surface 110 emitted by the light source a100a; B is the distance between the ray source focus of the light source a100a and the mounting seat 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: Figure 7 and Figure 8 As shown, the focus of the ray source of the light source a100a is recorded as point 0, the intersection points of the light of the light source a100a and the slit edge of the front collimator 240 are recorded as P1 and P2 respectively, and the two endpoints of the projection of the light of the light source a100a on the mounting base b220b are recorded as Q1 and Q2 respectively, forming two triangles, namely the first triangle formed by connecting OP1P2, and the second triangle formed by connecting OQ1Q2. Among them, the length of the side formed by connecting P1 and P2 in the first triangle is D, and the height corresponding to the side is A; the length of the side formed by connecting Q1 and Q2 in the second triangle is F, and the height corresponding to the side is B.

[0075] First, prove that the first triangle and the second triangle are similar triangles. According to the theorem of geometric optics, light propagates along a straight line, and it can be seen that the three points OP1Q1 are collinear, and the three points OP2Q2 are collinear. And based on the known relative positions of the light source 100, the front collimator 240 and the detector body 210 in the X-ray detection equipment, it can be seen that the connecting line of P1 and P2 is parallel to the connecting line of Q1 and Q2. According to the properties of parallel lines, the corresponding angles formed by the two parallel lines being intercepted by the third straight line are equal. In this way, the internal angles of the first triangle are equal to the corresponding internal angles of the second triangle, so the two triangles are similar triangles.

[0076] Using similar triangles to deduce the known fact. From the properties of similar triangles, we can know that the ratio k of the corresponding sides of similar triangles is equal, so we can know that F = (B*D) / A.

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

[0078] In this way, according to the above formula, the spacing between the first light-transmitting openings 221 of two adjacent mounting seats 220 on the same side along the first axis is designed, which can not only prevent the detector from receiving light from the adjacent light source 100, resulting in image blur or data errors, but also achieve a compact design of the adjacent mounting seats 220 and reduce the overall volume of the security inspection equipment in the first direction X.

[0079] Exemplarily, A>200mm, B≈2000mm, C<6mm, D<2mm, and when E satisfies and E>13mm, two adjacent detector bodies 210 will not receive light from each other.

[0080] Optionally, a plurality of light sources 100 are provided, including light sources a100a and b100b, and light sources a100a and b100b are arranged around a first axis respectively, and the first axis passes through a scanning surface 110a formed by light source a100a and a scanning surface b110b formed by light source b100b, and scanning surface 110a is parallel to scanning surface b110b. In this way, since light sources a100a and b100b irradiate the object to be tested 600 at different angles, a dual-angle ray scanning can be formed, and more accurate feature information of the object to be tested 600 can be obtained.

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

[0082] Optionally, the first axis is parallel to the first horizontal direction, the light source a100a and the light source b100b are spaced apart along the second horizontal direction, and 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 a common X-ray detection device, in order to allow the test piece 600 to pass smoothly through the channel 400, the channel 400 is set to extend in the horizontal direction, and the supporting surface of the channel 400 supports the test piece 600 in the direction of gravity, that is, the bottom of the test piece 600 is in contact with the channel 400. The supporting surface of a general channel 400 is not light-transmissive. For this reason, in this embodiment, the light source a100a is used as a side light source, and the light source b100b is used as a top light source. The light source a100a and the light source b100b form a dual-view scanning, which can more accurately obtain the characteristic information of the test piece 600.

[0084] Optionally, the X-ray detection device includes a bracket 300, the bracket 300 includes a first support member 310 and a second support member 320 that are spaced apart, and a third support member 330 installed therebetween, and the mounting seat 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 between the detector assemblies 200 can be kept constant and the preset angle can be maintained.

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

[0086] Exemplarily, the mounting base 220 is detachably connected to the third supporting member 330 .

[0087] Exemplarily, the mounting seat 220 is movably connected to the third support member 330 and can be relatively movable or locked. In this way, the movement of the detector body 210 can be completed by moving the mounting seat 220 .

[0088] Exemplarily, the third support member 330 is detachably installed between the first support member 310 and the second support member 320 , so that the angle between the mounting base 220 and the light source 100 can be adjusted by replacing the third support member 330 of different styles.

[0089] like Fig. 9 As shown, the present invention further provides a security inspection device, including a channel 400 and the above-mentioned X-ray detection device, wherein the channel 400 passes through the scanning surface 110. Thus, when the object to be tested 600 passes through the channel 400, that is, passes through the scanning surface 110, the X-ray detection device completes the detection of the object to be tested 600, and can obtain a rough image of the inside and outside of the object to be tested 600.

[0090] Optionally, a plurality of channels 400 are arranged in parallel, and the X-ray detection devices are arranged in one-to-one correspondence with the plurality of channels 400.

[0091] Exemplarily, 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 , and the object to be inspected can pass through the conveying device 500 and pass through the multiple scanning surfaces 110 in sequence.

[0093] like Figures 10 to 13 As shown, optionally, the security inspection device 2 with dual channels can be assembled from two security inspection devices 1 with single channels. Specifically, the security inspection device also includes a shell 700, and the X-ray detection device and the channel 400 are both installed in the shell 700. When two security inspection devices 1 with single channels are assembled into a security inspection device 2 with dual channels, the adjacent first side walls 710 of the two security inspection devices 1 with single channels 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 shells 700, and the lead curtain 720 is arranged perpendicular to the extension direction of the channel 400 to prevent the light emitted by the light source 100 from penetrating from the gap between the two shells 700.

[0094] Furthermore, each channel 400 in the dual-channel security inspection device 2 is configured 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 manner, and the two side light sources are located on the same side of the two top light sources.

[0095] In addition, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. X-ray detection device, characterized in that include: A light source (100), wherein the light source (100) is capable of emitting light to form a scanning surface (110); A detector assembly (200), wherein the detector assembly (200) is arranged in a one-to-one correspondence with the scanning surface (110), the detector assembly (200) comprises a plurality of detector bodies (210), and mounting seats (220) corresponding to the plurality of detector bodies (210) in a one-to-one correspondence, wherein the plurality of mounting seats (220) are arranged in sequence on the circumference of the light source (100) in the plane where the scanning surface (110) is located, the plurality of mounting seats (220) are arranged in sequence on the circumference of the light source (100), a light shielding layer is provided on the surface of the mounting seat (220), and a first light transmission port (221) is provided on a side facing the light source (100), the detector body (210) is installed in the mounting seat (220) and is capable of receiving the light passing through the first light transmission port (221), and the light received by all the detector bodies (210) is capable of forming a continuous scanning surface (110).

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

3. The X-ray detection device according to claim 1, characterized in that: It comprises n scanning surfaces (110), where 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 comprises a mounting seat a (220a) and a mounting seat b (220b), wherein in a second direction (Y), an opening direction of a first light-transmitting opening a (221a) of the mounting seat a (220a) is the same as an opening direction of a first light-transmitting opening b (221b) of the mounting seat b (220b), and a spacing E between the first light-transmitting opening a (221a) and the first light-transmitting opening b (221b) in a first direction (X) satisfies: A is the distance between the radiation source focus of the light source a (100a) and the slit of the front collimator (240) thereof in the second direction (Y), and the mounting seat a (220a) is used to receive the scanning surface (110) emitted by the light source a (100a); B is the distance between the radiation source focus of the light source a (100a) and 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 front collimator (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 with a plurality of light sources, including a light source a (100a) and a light source b (100b); the light source a (100a) and the light source b (100b) are arranged around the first axis respectively; the first axis passes through a scanning surface a (110a) formed by the light source a (100a) and a scanning surface b (110b) formed by the light source b (100b); the scanning surface a (110a) is parallel to the scanning surface b (110b).

6. The X-ray detection device according to claim 5, characterized in that: The first axis is parallel to the first horizontal direction, 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 to 6, characterized in that: The invention comprises a bracket (300), wherein the bracket (300) comprises a first support member (310) and a second support member (320) which are arranged at an interval, and a third support member (330) installed between the first support member (310) and the second support member (320), and the mounting seat (220) is installed on the third support member (330).

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

9. The security inspection device according to claim 8, characterized in that: A plurality of channels (400) are arranged in parallel, and the X-ray detection devices are arranged in a one-to-one correspondence with the plurality of channels (400).

10. The security inspection device according to claim 8, characterized in that: A conveying device (500) is installed in the channel (400), and the object to be inspected can pass through the plurality of scanning surfaces (110) in sequence through the conveying device (500).

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