CN117805919A

CN117805919A - Detector device and ray irradiation device

Info

Publication number: CN117805919A
Application number: CN202311841511.1A
Authority: CN
Inventors: 张丽; 陈志强; 黄清萍; 韩丽娜; 程熠; 赵鑫; 周立峰; 安旭朝
Original assignee: Tsinghua University; Nuctech Co Ltd
Current assignee: Tsinghua University; Nuctech Co Ltd
Priority date: 2023-12-28
Filing date: 2023-12-28
Publication date: 2024-04-02

Abstract

The present disclosure provides a detector device and a radiation irradiation device, and relates to the technical field of radiation scanning. The detector device comprises: a bracket portion defining an installation space; s bearing parts are positioned in the installation space, each bearing part is provided with a positioning mark, each bearing part is connected with the bracket part, and S is an integer greater than or equal to 2; s detectors are arranged on the S bearing parts in a one-to-one correspondence manner, wherein the crystal part of each detector is aligned with a positioning mark on the arranged bearing part and is used for receiving rays; the S positioning marks are arranged on the same straight line, and the straight line is positioned on the beam outlet surface of the ray.

Description

Detector device and ray irradiation device

Technical Field

The present disclosure relates to the field of radiation scanning, and in particular, to a detector device and a radiation irradiation device.

Background

The radiation detection system comprises a radiation source device for generating radiation and a detector device for receiving radiation, between which a detection area is formed.

The detector device comprises a plurality of detectors, a plurality of detector arrays are arranged, and the plurality of detectors are directly arranged on the inner wall of the detector box. When a plurality of detectors are installed, the installation positions of the plurality of detectors are usually required to be debugged so that the crystal parts of the detectors are positioned on the beam outlet surface of the rays, but the installation positions of the detectors are troublesome to debug, so that further improvement is required.

The above information disclosed in this section is only for understanding the background of the disclosed concept of the present disclosure, and thus, the above information may contain information that does not constitute prior art.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

In view of at least one aspect of the above technical problems, the present disclosure provides a detector device and a radiation irradiating device.

According to a first aspect of the present disclosure there is provided a detector arrangement comprising: a bracket portion defining an installation space; s bearing parts are positioned in the installation space, each bearing part is provided with a positioning mark, each bearing part is connected with the bracket part, and S is an integer greater than or equal to 2; s detectors are arranged on the S bearing parts in a one-to-one correspondence manner, wherein the crystal part of each detector is aligned with a positioning mark on the arranged bearing part and is used for receiving rays; wherein S positioning marks are arranged on the same straight line which is positioned on the beam outlet surface of the ray

In some exemplary embodiments of the present disclosure, further comprising: s adjusting parts are connected with the S bearing parts in a one-to-one correspondence manner; wherein each adjusting portion is configured to apply a force to the connected carrying portion to change a position of the connected carrying portion within the installation space so that the S positioning marks are placed on the same straight line.

In some exemplary embodiments of the present disclosure, the stand portion includes: a first side bracket; the second side bracket is opposite to the first side bracket, and an installation space is defined between the first side bracket and the second side bracket; the S adjusting parts at least penetrate through the first side bracket and are connected with the S bearing parts.

In some exemplary embodiments of the present disclosure, each carrier comprises: a carrier body configured to allow the probe to be mounted; and the convex part is connected with the edge of the bearing main body and is connected with the corresponding adjusting part.

In some exemplary embodiments of the present disclosure, the carrier body includes a carrier plate configured to allow the probe to be mounted; the convex part comprises a bending part connected with the edge of the bearing plate, and the bending part is connected with the corresponding adjusting part.

In some exemplary embodiments of the present disclosure, K grooves are provided on each adjusting portion, each bending portion has a clamping structure that clamps into any groove of the connected adjusting portion, and K is an integer greater than or equal to 1.

In some exemplary embodiments of the present disclosure, each adjustment portion comprises a threaded rod, and each clamping structure comprises an aperture on the bent portion; wherein each threaded rod is configured to extend into the aperture of the connected bent portion, and any one of the grooves formed by the threads thereon is allowed to be caught by the aperture edge of the connected bent portion.

In some exemplary embodiments of the present disclosure, S connectors, wherein the S bearing portions are connected with the bracket portion through the S connectors.

In some exemplary embodiments of the present disclosure, each connector comprises: the first connecting plate comprises a first plate extending along a first direction and a second plate extending along a second direction, the first direction is parallel to the beam outlet surface, the first direction is perpendicular to the second direction, the first plate is configured to be connected with the first side bracket, and the second plate is configured to be connected with one side of the corresponding bearing part.

In some exemplary embodiments of the present disclosure, each bearing portion includes at least one long hole, and each second plate includes at least one mounting hole corresponding to each long hole on the connected bearing portion, and the corresponding long hole is connected with the mounting hole by a screw; wherein each elongated hole extends in the second direction, and for any one of the bearing portions, when it moves in response to the force applied by the connected adjustment portion, any one of the elongated holes communicates at least partially with the corresponding mounting hole for screw connection.

In some exemplary embodiments of the present disclosure, each connector further comprises: and a second connection plate including a third plate extending in the first direction and a fourth plate extending in the second direction, wherein the third plate is configured to be connected with the second side bracket, and the fourth plate is configured to be connected with the other side of the corresponding bearing part.

In some exemplary embodiments of the present disclosure, the positioning mark on each carrier comprises: the opening of the first side edge of the bearing plate and/or the opening of the second side edge of the bearing plate, the first side of the bearing plate is opposite to the second side of the bearing plate.

In some exemplary embodiments of the present disclosure, each of the bearing portions further includes a first positioning hole thereon, and each of the second plates further includes a second positioning hole thereon, wherein for any bearing portion, the second positioning holes of the second plates to which the first positioning holes are connected are aligned.

According to a second aspect of the present disclosure, there is provided a radiation irradiating apparatus comprising: a radiation source configured to emit radiation; the detector arrangement described above is configured to detect radiation.

One or more of the above embodiments have the following advantages: when the detectors are installed, each detector is installed on the corresponding bearing part, so that the crystal surface of the detector corresponds to the positioning mark on the bearing part, and the alignment of the crystal parts of the detectors can be realized by adjusting the positioning marks to be positioned on the same straight line (the straight line is positioned on the beam outlet surface of the ray source) based on the positioning mark on each bearing part, so that the ray receiving effect of the detectors is improved.

Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

Drawings

For a better understanding of the present disclosure, the present disclosure will be described in detail with reference to the following drawings:

fig. 1 schematically illustrates an application scenario diagram of a detector device according to an embodiment of the present disclosure.

FIG. 2 is a schematic structural view of a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure;

FIG. 3 is a partial structural schematic diagram of a detector device according to some exemplary embodiments of the present disclosure;

FIG. 4 is a partial schematic structural view of a detector device according to further exemplary embodiments of the present disclosure;

FIG. 5 is a schematic view of a connection structure between one carrier portion and a bracket portion in a detector device according to some example embodiments of the present disclosure;

FIG. 6 is an exploded view of a detector device according to some exemplary embodiments of the present disclosure;

FIG. 7 is a schematic structural view of a first connection plate in a detector device according to some exemplary embodiments of the present disclosure;

FIG. 8 is a schematic view of a connection structure between a carrier and a detector in a detector device according to some example embodiments of the disclosure;

FIG. 9 is a schematic structural view of a carrier in a detector device according to some exemplary embodiments of the present disclosure;

FIG. 10 is a schematic structural view of an adjustment in a detector device according to further exemplary embodiments of the present disclosure;

fig. 11 is a schematic structural view of an adjustment in a detector device according to further exemplary embodiments of the present disclosure.

FIG. 12 is a schematic structural view of a mounting frame assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure;

FIG. 13 is a schematic structural view of a radiation source assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure;

FIG. 14 is a schematic structural view of a detector assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure;

FIG. 15A is a schematic structural view of a detector device according to some exemplary embodiments of the present disclosure;

FIG. 15B is a schematic structural view of a detector device according to some exemplary embodiments of the present disclosure, with the lid in an open state;

FIG. 15C is a schematic cross-sectional view of the structure at A-A in FIG. 15A;

FIG. 16 is a schematic structural view of a cartridge according to some exemplary embodiments of the present disclosure;

FIG. 17 is a schematic structural view of a lid according to some exemplary embodiments of the present disclosure;

Detailed Description

Specific embodiments of the present disclosure will be described in detail below, it should be noted that the embodiments described herein are for illustration only and are not intended to limit the present disclosure. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be apparent to one of ordinary skill in the art that: no such specific details need be employed to practice the present disclosure. In other instances, well-known structures, materials, or methods have not been described in detail in order to avoid obscuring the present disclosure.

The embodiment of the invention provides a detector device and a ray irradiation device. Before describing the technical scheme provided by the embodiment of the invention, the related technology related to the invention is described.

In the related art, the detector device includes a plurality of detectors arranged in a plurality of detector arrays, and the plurality of detectors are directly mounted on the inner wall of the detector box. When a plurality of detectors are installed, it is generally necessary to debug the installation positions of the plurality of detectors so that the crystal portions of the detectors are located on the exit face of the radiation. However, the detector box is easy to deform in the processing or welding process, so that errors are generated in different positions on the side wall of the detector box; therefore, after the plurality of detectors are mounted on the inner wall of the detector box, in order to enable the crystal part of the detectors to be positioned on the beam outlet surface of the rays, on one hand, the plurality of distance adjustment needs to be performed, so that the efficiency of the mounting adjustment of the detectors is reduced; on the other hand, the lack of positioning basis for whether crystal portions between a plurality of probes are aligned leads to time and effort consuming debugging.

In view of this, embodiments of the present disclosure provide a detector device, wherein the device comprises: a bracket portion defining an installation space; s bearing parts are positioned in the installation space, each bearing part is provided with a positioning mark, each bearing part is connected with the bracket part, and S is an integer greater than or equal to 2; s detectors are arranged on the S bearing parts in a one-to-one correspondence manner, wherein the crystal part of each detector is aligned with a positioning mark on the arranged bearing part and is used for receiving rays; the S positioning marks are arranged on the same straight line, and the straight line is positioned on the beam outlet surface of the ray. When the detectors are installed, each detector is installed on the corresponding bearing part, so that the crystal surface of the detector corresponds to the positioning mark on the bearing part, and the alignment of the crystal parts of the detectors can be realized by adjusting the positioning marks to be positioned on the same straight line (the straight line is positioned on the beam outlet surface of the ray source) based on the positioning mark on each bearing part, so that the ray receiving effect of the detectors is improved. The positioning mark is convenient for providing positioning for the crystal part of each detector, and can realize rapid alignment of the crystal parts among a plurality of detectors. Therefore, the working efficiency of the installation and debugging of the detector is realized.

Fig. 1 schematically illustrates an application scenario diagram of a detector device according to an embodiment of the present disclosure. It should be noted that fig. 1 is only an example in which embodiments of the present disclosure may be applied to help those skilled in the art understand the technical content of the present disclosure, but does not mean that embodiments of the present disclosure may not be used in other devices, systems, environments, or scenarios.

As shown in fig. 1, the application scenario 900 according to this embodiment may include: shield 901, frame 902, source 903, detection assembly 904, line 905, and hoist component 906.

The shield 901 surrounds a detection passage G through which the object to be detected can be lifted by the lifting member 906. Shield 901 is supported by frame 902. The radiation source 903 is disposed on one side of the shielding body 901, and the radiation source 903 emits radiation for detecting the object when the object passes through the detection channel G, and a first slit through which the radiation passes is formed in the shielding body 901. The detection component 904 is arranged on the other side of the shielding body 901, the detection component 904 acquires rays which are emitted by the ray source 903 and pass through the detection channel G, and a second gap through which the rays which pass through the detected object pass is formed in the shielding body 901.

The detection assembly 904 includes: a detector box and a plurality of detectors.

In some embodiments, the detector box is a cuboid, the detector box being disposed along a height direction of the shield. The plurality of detectors are installed in the detector box, and the plurality of detectors are arranged at intervals along the length direction of the detector box.

The top of the shield 901 is formed with an opening portion extending from the inlet of the detection channel G to the outlet of the detection channel G. The assembly line 905 is disposed above the opening of the shielding body 901, and the hoisting member 906 is connected to the assembly line 905 and located below the assembly line 905, and the assembly line 905 can drive the hoisting member 906 to move. The lifting member 906 is used for lifting the object to be detected. The line 905 drives the object to be detected through the detection channel G by the lifting member 906.

The lifting member 906 may be a device having the function of securing items including, but not limited to, hooks, clamps, lifting ropes, and the like.

The detected object can be meat, work piece, food product, etc.

The object to be detected is driven by the pipeline 905 to enter the detection channel G from the opening, and when the object to be detected moves to the middle part (only an example) of the detection channel G, the radiation source 903 generates radiation, which passes through the first slit and enters the detection channel, passes through the object to be detected, and is received by the detection component 904 through the second slit. The detection component 904 performs an analytical detection based on the received radiation.

The radiation irradiating apparatus according to the embodiment of the present disclosure will be described in detail with reference to fig. 2.

Fig. 2 is a schematic structural view of a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure.

As shown in fig. 2, the radiation irradiating device includes: a radiation source assembly 1, a detector assembly 2 and a mounting frame assembly 3. The radiation source assembly 1 comprises a first shield 5 having a first slit 511 and a third slit 511 (which corresponds to the first slit of fig. 1 described above), the radiation source assembly 1 being configured to emit radiation through the third slit 511 to scan a target object 9 (which corresponds to the object to be detected of fig. 1 described above) within the detection channel; the detector assembly 2 comprises a second shield 6 having a second slit 611 (which corresponds to the second slit of fig. 1 as described above), the detector assembly 2 being configured to detect radiation passing through the second slit 611; the radiation source assembly 1 and the detector assembly 2 are mounted on the mounting frame assembly 3 to define a detection channel 4 (which corresponds to the detection channel G of fig. 1 described above), the first shield 5 and the second shield 6 being separate, each separately secured to the mounting frame assembly 3 as a side wall of the detection channel, respectively; wherein a first mark on the source assembly 1 is located on the exit face of the radiation with a second mark on the detector assembly 2, the first mark being aligned with the third slit 511 and the second mark being aligned with the second slit 611. Through setting up first mark on ray source subassembly 1 and setting up the second mark on detector subassembly 2, make first mark and second mark all be located the play beam surface of ray, when the installation, even first shield and second shield are the separation, can realize the accurate location between ray source and the detector through guaranteeing that first mark and second mark align, and guarantee that third slit 511 and the accurate alignment of second slit 611, and make the detector have better ray detection effect.

To facilitate an understanding of the mounting structure of the sonde 3a within the sonde cassette 1a, a detailed description is provided with reference to fig. 3 to 11.

FIG. 3 is a partial structural schematic diagram of a detector device according to some exemplary embodiments of the present disclosure; fig. 4 is a partial structural schematic diagram of a detector device according to further exemplary embodiments of the present disclosure.

The detector device of the embodiment of the present disclosure is described in detail below with reference to fig. 3 and 4.

As shown in fig. 3 and 4, the detector device includes: a bracket portion 1b, at least one carrier portion 2b and at least one detector 3a.

The bracket portion 1b is fixedly mounted in the detector box 1a, the bracket portion 1b defines a mounting space, and the bracket portion 1b serves as a base for mounting other components in the detector device.

In some embodiments, the stand portion 1b includes: a first side bracket 11b and a second side bracket 12b.

The first side bracket 11b and the second side bracket 12b are elongated and are arranged along the length direction of the detector box 1 a. The first side bracket 11b and the second side bracket 12b are arranged at opposite intervals, and the first side bracket 11b and the second side bracket 12b are fixedly connected with the detector box 1a respectively. The first side bracket 11b and the second side bracket 12b define therebetween an installation space for installing the detector 3a.

The plurality of carrying parts 2b are all located in the installation space between the first side bracket 11b and the second side bracket 12b, and are arranged at intervals along the length direction of the detector box 1 a. Both sides of the carrying part 2b are fixedly connected with the first side bracket 11b and the second side bracket 12b, respectively. One detector 3a corresponds to one bearing part 2b, and the detector 3a is mounted on the bearing part 2 b.

It will be appreciated that the plurality of probes 3a are mounted as a unit within the cassette 1a by the carrier portion 2b and the bracket portion 1b cooperating.

FIG. 5 is a schematic view of a connection structure between one carrier portion and a bracket portion in a detector device according to some example embodiments of the present disclosure; FIG. 6 is an exploded view of a detector device according to some exemplary embodiments of the present disclosure; fig. 7 is a schematic structural view of a first connection plate in a detector device according to some exemplary embodiments of the present disclosure.

In some embodiments, reference is made to fig. 5, 6 and 7. The device further comprises a plurality of connectors 6b.

One carrying part 2b corresponds to one connecting piece 6b, and the carrying part 2b is fixed to the bracket part 1b through the connecting piece 6b.

Specifically, the connection member 6b includes a first connection plate 61b.

The first connection plate 61b includes a first plate 611b extending in a first direction D1 and a second plate 612b extending in a second direction D2, the first direction D1 being parallel to the beam exit surface, the first direction D1 being perpendicular to the second direction D2. The first plate 611b is fixedly connected to the first side bracket 11b, and one side of the carrying portion 2b is fixedly connected to the second plate 612 b.

In other embodiments, the connector 6b may also include a second connector plate 62b.

The second connection plate 62b is disposed opposite to the first connection plate 61b, and the second connection plate 62b includes a third plate 621b extending in the first direction D1 and a fourth plate 622b extending in the second direction D2. The third plate 621b is fixedly connected to the second side bracket 12b, and the other side of the carrying portion 2b is fixedly connected to the fourth plate 622b.

FIG. 8 is a schematic view of a connection structure between a carrier and a detector in a detector device according to some example embodiments of the disclosure; fig. 9 is a schematic structural view of a carrier in a detector device according to some exemplary embodiments of the present disclosure.

In some embodiments, referring to fig. 3, 8 and 9, the carrier 2b includes a carrier body 21b and a boss 22b.

The carrier body 21b is configured to allow the detector 3a to be mounted; the convex portion 22b is connected to the edge of the carrier body 21 b.

Illustratively, the boss 22b is disposed on one side of the carrier body 21 b. Or two protrusions 22b are provided, and the two protrusions 22b are provided on opposite sides of the carrying body 21b, respectively. Or the convex portion 22b is provided on the peripheral side of the bearing body 21 b.

In one implementation, the boss 22b is disposed on one side of the carrier body 21 b.

In some embodiments, the carrier body 21b includes a carrier plate 211b, and the boss 22b includes a bend 221b. Copper posts 8b are provided at four corners of the lower surface of the carrier plate 211b, and the circuit board mounting of the prober 3a and the copper posts 8b are fixed to the carrier plate 211b by screws. The bending portion 221b is provided on one side of the carrier plate 211 b.

In other embodiments, the carrying body 21b may include shapes other than a plate, such as an irregular housing, in which reinforcing ribs are disposed, and the protruding portion 22b may be fixed by welding or the like, or a baffle plate detachably mounted on the carrying body 21b by plugging or the like. It should be appreciated that the embodiments of the present disclosure are not limited thereto, and the bearing body 21b and the convex portion 22b may be deformed.

In some embodiments, each bearing part 2b comprises at least one long hole 23b, each second plate comprises at least one mounting hole 6121b corresponding to each long hole on the connected bearing part one by one, and the corresponding long holes are connected with the mounting holes by screws; wherein each elongated hole 23b extends in the second direction, and for any one of the bearing portions 2b, when it moves in response to the force applied by the attached adjustment portion, any one of the elongated holes 23b thereon is at least partially in communication with the corresponding mounting hole for screw attachment.

The connection between the carrier part 2b and the connecting piece 6b is fixed. Two long holes 23b are formed in one side of the bearing plate 211b, which is close to the first connecting plate 61b, the two long holes 23b are distributed at intervals along a third direction D3, and the third direction D3 is perpendicular to the first direction D1 and the second direction D2 respectively. One side of the bearing plate 211b, which is close to the second connecting plate 62b, is provided with a long hole 23b, and the length arrangement direction of the long hole 23b is parallel to the second direction D2. Correspondingly, mounting holes 6121b are formed at the positions corresponding to the long holes 23b on the second plate 612b and the fourth plate 622b and the bearing plate 211b, and the long holes 23b are connected with the mounting holes 6121b through screws 7 b.

When it is necessary to adjust the position of the bearing portion 2b in the second direction D2 in the installation space, the long hole 23b facilitates the fixation of the bearing portion 2b in different positions by the screw 7 b.

In some embodiments, to facilitate the fixing of the carrier 2b. Each carrying plate 211b is further provided with a first positioning hole 24b, and the second plate 612b corresponding to the carrying plate 211b is provided with a second positioning hole 6122b.

When the bearing part 2b is installed, the first positioning hole 24b and the second positioning hole 6122b are aligned first, so that the pre-fixing of the bearing part 2b on the connecting piece 6b is realized, and the subsequent fixed installation of a plurality of bearing parts 2b is facilitated.

It should be noted that, in the embodiment of the present disclosure, the position where the first positioning hole 24b is opened is not specifically limited. For example, the first positioning hole 24b may be formed on a side of the carrier plate 211b corresponding to the fourth plate 622b, and the second positioning hole 6122b may be formed on the fourth plate 622 b.

In some embodiments, the crystal portion of each detector 3a on the carrier portion 2b is aligned with the positioning mark 4b on the mounted carrier portion 2b. The positioning mark 4b on each carrying portion 2b includes: the notch 41b at the edge of the first side of the carrier plate 211b is positioned on the same straight line as the notch 41b on each carrier plate 211b when the position of the detector 3a is adjusted, and the straight line is positioned on the beam outlet surface of the ray.

In other embodiments, the positioning mark 4b may further include: the second side edge of the carrier plate 211b has a notch 41b, and the first side of the carrier plate 211b is opposite to the second side of the carrier plate 211 b.

In still other embodiments, the positioning mark 4b includes: the second side edge of the carrier plate 211b has a notch 41b.

Illustratively, the notch 41b may be triangular, rectangular or semicircular.

It should be noted that, in the embodiment of the present disclosure, the shape of the notch 41b is not limited in particular, and in order to facilitate adjustment and alignment of the detector 3a by the visible light matching with the notch 41b, the notch 41b may be set to any shape.

In some embodiments, the device further comprises S adjustment portions 5b.

One adjustment portion 5b corresponds to one bearing portion 2 b. The adjusting portion 5b is connected to the bearing portion 2 b. Wherein each adjusting portion 5b is configured to apply a force to the connected carrying portion 2b to change the position of the connected carrying portion 2b in the installation space so that the S positioning marks 4b are placed on the same straight line.

According to the embodiment of the disclosure, the position of the bearing part can be conveniently adjusted by arranging the adjusting part, so that S positioning marks are easily arranged on the same straight line, and the adjusting efficiency of a plurality of detectors is improved.

It will be appreciated that when a force is applied to the carrier portion 2b in the second direction D2 by the adjustment portion 5b, the carrier plate is allowed to slide in the extension direction of the elongated hole 23b, thereby effecting a change in the position of the carrier plate between the first side bracket 11b and the second side bracket 12b to bring about a change in the position of the probe 3a on the carrier plate within the installation space. By emitting infrared rays to detect whether the plurality of notches 41b are located on the same line formed by the infrared rays, when the alignment notches 41b on the plurality of carrier plates 211b are not located on the same line, the adjusting screw on one side of the bracket portion 1b is adjusted, so that the carrier plates 211b move leftwards or rightwards in the second direction D2, fine adjustment of the positions of the detectors 3a is realized, and the alignment among the plurality of notches 41b is realized. After the adjustment is completed, the bearing plate 211b may be fixed to the first connection plate 61b and the second connection plate 62b by the screws 7 b.

In some embodiments, K grooves 51b are provided on each adjusting portion 5b, and each bending portion 221b has a locking structure locked into any groove 51b of the connected adjusting portion 5b, where K is an integer greater than or equal to 1.

According to the embodiment of the disclosure, the groove is matched with the clamping structure, so that the adjusting part is simple in structure, high in reliability and not easy to damage.

In some embodiments, the adjusting portion 5b includes a threaded rod 52a, a through hole is formed on a side, away from the installation space, of the first side bracket 11b, the threaded rod 52a penetrates through the through hole, a nut is fixed at a position corresponding to the through hole on a side, away from the installation space, of the first side bracket 11b, the threaded rod 52a is in threaded connection with the nut, and one end of the threaded rod 52a protrudes out of a side, away from the installation space, of the first side bracket 11b, so that a worker can screw the threaded rod 52a; the other end of the threaded rod 52a protrudes into the installation space. Each of the engaging structures includes an opening 2211b in the bent portion 221b, the other end of the threaded rod 52a extends into the opening 2211b of the connected bent portion 221b, and any one of the grooves 51b formed thereon by threads is allowed to be engaged by the edge of the opening 2211b of the connected bent portion 221 b.

It can be appreciated that by screwing the threaded rod 52a, the edge of the opening 2211b is continuously rotated along with the groove 51b on the threaded rod 52a, and can be clamped in the groove 51b formed by threads at different positions of the threaded rod 52a, so as to realize adjustment of different positions of the detector 3a on the bearing plate 211b in the installation space. The mode of thread adjustment is finer, fine adjustment of the position of the detector 3a in the installation space can be achieved, and the installation and debugging work of the detector 3a is finer.

Note that, in the embodiment of the present disclosure, the form of the clamping structure formed between the bent portion 221b and the groove 51b is not particularly limited. For example, the edge of the bending portion 221b may be engaged into the groove 51b to form an engagement structure; a clamping ring can be fixed on one side of the bending part 221b and clamped in the groove 51 b; or a hook is fixed on one side of the bending part 221b and is clamped in the groove 51 b.

Fig. 10 is a schematic structural view of an adjustment in a detector device according to further exemplary embodiments of the present disclosure.

In other embodiments, referring to fig. 10, the adjustment portion 5b includes a threaded section 53a and a snap-fit section 53b. The clamping section 53b is coaxially and fixedly connected to one end of the threaded section 53 a. The first side support 11b is kept away from the installation space one side and is offered the perforation, and threaded rod 52a runs through the perforation, and one side that first side support 11b kept away from the installation space corresponds the department with the perforation and is fixed with the nut, screw thread section 53a and nut threaded connection, and the one end protrusion that screw thread section 53a kept away from joint section 53b is in first side support 11b one side setting of keeping away from the installation space. The clamping section 53b comprises a plurality of grooves 51b formed in the clamping section 53b, the grooves 51b and the clamping section 53b are concentrically arranged, and the grooves 51b are arranged at intervals along the axial direction of the clamping section 53b.

The threaded section 53a is screwed to engage the different grooves 51b of the engagement section 53b with the edges of the aperture 2211b of the bent portion 221 b. Thereby realizing the fixation of the detector 3a at different positions in the installation space.

In still other embodiments, referring to fig. 11, the adjustment portion 5b includes an adjustment lever 54a and a spring 54b. The spring 54b is coaxially fixed to one end of the adjustment lever 54a, and the spring 54b is located in the installation space. The first side bracket 11b is provided with a perforation on one side far away from the installation space, the threaded rod 52a penetrates through the perforation, a nut is fixed at the corresponding position of the perforation on one side of the first side bracket 11b far away from the installation space, and the adjusting rod 54a is in threaded connection with the nut. A groove 51b is formed between two adjacent circles on the spring 54b, and the edge of the hole 2211b on the bending part 221b is clamped in the groove 51 b.

The adjustment lever 54a is screwed so that the different grooves 51b of the adjustment lever 54a are engaged with the edges of the hole 2211b of the bent portion 221 b. Thereby realizing the fixation of the detector 3a at different positions in the installation space.

For the purpose of facilitating an understanding of the object of the present invention, the principle of adjustment of the detector device of the present invention when installed will be described in connection with the above embodiments.

In mounting, the circuit board of the probe 3a is fixed to the carrier plate 211b by screws, and the notch 41b is made to correspond to the crystal portion of the probe 3 a. The carrier plate 211b with the detector 3a is pre-fixed to the bracket portion 1b by pre-positioning the first positioning hole 24b on the carrier plate 211b and the second positioning hole 6122b on the second plate 612b, and at the same time, the adjusting bolt is inserted through the hole 2211b on the bending portion 221b and the edge of the hole 2211b is clamped into the groove 51b of the adjusting bolt. After the plurality of detectors 3a are pre-fixed on the bracket part 1b through the bearing part 2b, infrared rays are emitted to form a straight line, the beam outlet surface of the infrared rays and the rays of the ray source are positioned in the same plane, the infrared rays are aligned to the first notch 41b at one end, the rest of the notches 41b are regulated, the notches 41b and the infrared rays are used as regulating standards, and the regulating screw is screwed to enable the notches 41b on the plurality of bearing plates 211b to be positioned on the straight line formed by the infrared rays. Before the notch 41b is aligned with the infrared rays, the notch 41b is aligned with the crystal part of the detector 3a, so that the notch 41b can be aligned with the infrared rays rapidly when the position of the notch 41b is adjusted subsequently, and the working efficiency of the installation and debugging of the detector 3a is improved; at the same time, the notch 41b is used as a visual positioning mark 4b, so that adjustment and positioning among the plurality of detectors 3a are facilitated.

The other components of the radiation irradiation device will be described with reference to fig. 12 to 14. Fig. 12 is a schematic structural view of a mounting frame assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure.

As shown in fig. 2 and 12, the radiation irradiating device includes: a radiation source assembly 1, a detector assembly 2 and a mounting frame assembly 3.

The mounting frame assembly 3 serves as a mounting base for other components of the radiation irradiating device.

In some embodiments, the mounting frame assembly 3 comprises: a main body frame 31, at least one first support beam 32 and at least one second support beam 33.

Referring to fig. 12, the main body frame 31 has a rectangular shape, and two first support beams 32 and one second support beam 33 are disposed inside the main body frame 31 in a crisscross manner. Two first support beams 32 are mounted inside the main body frame 31, both of the two first support beams 32 are laid in the second direction D2 (the width direction of the main body frame 31), and both of the two first support beams 32 are laid in parallel at intervals in the first direction D1 (the length direction of the main body frame 31). Two ends of the two first support beams 32 are fixed to the main body frame 31, respectively. The second support beam 33 is mounted inside the main body frame 31, the second support beam 33 is disposed along the first direction D1 (the longitudinal direction of the main body frame 31), and both ends of the second support beam 33 are also fixed to the main body frame 31, respectively. The first direction D1 and the second direction D2 are perpendicular to each other.

It should be noted that, in the embodiment of the present disclosure, the number of the first support beam 32 and the second support beam 33 is not specifically limited, and the number of the first support beam 32 and the second support beam 33 may be adjusted according to the actual application requirement, and the number of the first support beam 32 and the second support beam 33 are all integers greater than or equal to 1.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 2 and 6, the mounting frame assembly 3 further includes: and a third shielding plate 7.

The third shielding plate 7 is laid flat on the main body frame 31, and the third shielding plate 7 is located between two first support beams 32. The third shielding plate 7 serves as a side wall of the detection channel 4.

The third shielding plate 7 is illustratively a lead plate.

Fig. 13 is a schematic structural view of a radiation source assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure.

The radiation source module 1 according to the embodiment of the present disclosure will be described in detail with reference to fig. 2 and 13.

As shown in fig. 2 and 13, the radiation source assembly 1 comprises a first shield 5 having a first slit 511.

In some exemplary embodiments of the present disclosure, the first shield 5 includes a first shield plate 51.

The first shielding plate 51 is disposed along a third direction D3, wherein the third direction D3, the first direction D1 and the second direction D2 are perpendicular to each other. The first shielding plate 51 is fixed to one of the first support beams 32. The first shield plate 51 is provided with a first slit 511.

The first shielding plate 51 is illustratively a lead plate.

In some embodiments, the radiation source assembly 1 further comprises: a radiation source 903 and a first scale 12 having a first scale value. The first mark includes a first scale value. The first marker is aligned with the beam-out surface of the radiation source assembly 1.

Specifically, the first scale 12 is disposed on the radiation source 903, and the first scale value is a zero line of the first scale 12. The first scale 12 is parallel to the axis of the bulb of the radiation source 903, the first scale value is aligned with the beam exit plane, and radiation is emitted from the bulb along the beam exit plane and enters the detection channel 4 through the first slit 511 to irradiate the target object 9.

In other embodiments, the first scale 12 may also be disposed on the first shield plate 51.

Fig. 14 is a schematic structural view of a detector assembly in a radiation irradiating apparatus according to some exemplary embodiments of the present disclosure.

The detector assembly of the embodiments of the present disclosure is described in detail below in conjunction with fig. 2 and 14.

As shown in fig. 2 and 14, the detector assembly 2 includes a second shield 6 having a second slit 611.

In some exemplary embodiments of the present disclosure, the second shield 6 includes a second shield plate 61 provided with a second slit 611.

The second shield plate 61 is laid out in the third direction D3. The second shielding plate 61 is fixed to the other first support beam 32. The second shielding plate 61 is provided with a second slit 611. The first shielding plate 51 and the second shielding plate 61 are arranged opposite to each other, the first shielding plate 51 and the second shielding plate 61 are positioned on two sides of the third shielding plate 7, and the first shielding plate 51, the second shielding plate 61 and the third shielding plate 7 jointly form the inner side wall of the detection channel 4. The radiation source 903 on the first shielding plate 51 and the detector box 1a on the second shielding plate 61 form a detection area within the detection channel 4.

The second shielding plate 61 is illustratively a lead plate.

It can be understood that the shielding plate is arranged as the lead plate, so that the shielding plate has a protective effect and the safety of the device in use is improved.

In some embodiments, the detector assembly 2 further comprises: a detector box 1a and a second scale 22 having a second scale value. The second mark includes a second scale value. The second marker is aligned with the beam-out surface of the radiation source assembly 1.

Specifically, the probe case 1a has an elongated shape, and the probe case 1a is arranged along the third direction D3. A plurality of detectors are arranged in the detector box 1a at intervals along the length direction of the detector box 1a, and a first slit 13a for the radiation to pass through is formed in the detector box 1 a.

The second scale 22 is disposed on the second shielding plate 61, and the second scale value is the zero line of the second scale 22. The second scale 22 is perpendicular to the length arrangement direction of the detectors, the second scale value is aligned with the main beam surfaces of the plurality of detectors, and the radiation after passing through the target object 9 is received by the detectors along the main beam surfaces through the second slit 611 and the first slit 13a.

In other embodiments, the second scale 22 may also be provided on the detector box 1 a.

It will be appreciated that the first scale value is aligned with the beam exit surface of the source 903 and the second scale value is aligned with the primary beam surface of the detector such that the first slit 511 corresponds to the first scale value and the second slit 611 and the first slit 13a correspond to the second scale value. When the radiation source 903 and the detector are aligned, the orthographic projection of the first scale value and the second scale value on the third shielding plate 7 are positioned on the same straight line. Specifically, the beam exit surface may be orthographically projected along the third direction D3, and the orthographically projected beam exit surface along the third direction D3 coincides with the straight line.

It should be noted that in the embodiment of the present disclosure, the first scale 12 and the second scale 22 may be located at different heights in the third direction D3, and when located at different heights, in the process of aligning the radiation source 903 and the detector box 1a, the orthographic projection of the first scale value and the second scale value on the third shielding plate 7 may be located in the same straight line. If, for convenience, the first scale 12 and the second scale 22 may be set to the same height, it is sufficient to ensure that the first scale value and the second scale value lie in the same straight line, which is located on the beam exit surface.

It should be noted that, in the embodiment of the present disclosure, the selection of the first scale value and the second scale value is not limited specifically, the first scale value may also select other scale lines of the first scale 12, and the second scale value may also select other scale lines of the second scale 22, but when performing alignment calibration, it is necessary to ensure that the first scale value is aligned with the second scale value.

In some embodiments, the first shield 5 and the second shield 6 are each secured by threaded holes on two first support beams 32; wherein the two first support beams 32 are welded inside the main body frame 31 before fixing the first shield 5 and the second shield, and then screw holes are opened.

Specifically, the first support beam 32 and the second support beam 33 are fixed inside the main body frame 31 by welding. Threaded holes are then formed in the two first support beams 32, and bolts are provided in the first shield plate 51 and the second shield plate 61. When the first shield plate 51 and the second shield plate 61 are mounted, the bolts are screwed into the screw holes, so that the first shield plate 51 and the second shield plate 61 are fixed to the two first support beams 32, respectively, by themselves.

It can be understood that the first support beam 32 and the second support beam 33 are fixed in the main body frame 31 through welding, and then threaded holes for installing the first shielding plate 51 and the second shielding plate 61 are formed in the two first support beams 32, so that the machining precision is ensured, and the threaded holes are not easy to deform due to welding influence relative to the mode of forming the threaded holes and then welding, so that the accuracy of positions of the first shielding plate 51 and the second shielding plate 61 during installation is ensured, and the adjustment amount during installation of the subsequent first shielding plate 51 and second shielding plate 61 is reduced.

In some embodiments, in order to facilitate maintenance of the detector box 1a by a worker, a side of the second shielding plate 61 away from the first shielding plate 51 is provided with a ladder stand 10, the ladder stand 10 is arranged obliquely upward, one end of the ladder stand 10 is fixedly connected with the main body frame 31, and the other end of the ladder stand 10 is fixedly connected with the second shielding plate 61. The upper end of the cat ladder 10 is provided with a protective cage 11c.

In some embodiments, with continued reference to fig. 2, the detection channel 4 includes an opening. The opening is located at one side of the detection channel 4, and the opening extends from the inlet of the detection channel 4 to the outlet of the detection channel 4.

Illustratively, the opening may be physically opened on the side of the detection channel 4; the shielding plate may be directly surrounded by a plurality of entities (i.e., shielding plates), i.e., there is no entity on the side corresponding to the opening.

As shown in fig. 2, the first shielding plate 51, the second shielding plate 61, and the third shielding plate 7 enclose the detection channel 4 whose one side is open. The side of the detection channel 4 remote from the third shielding plate 7 has no side wall and the opening is located on the side of the detection channel 4 remote from the mounting frame assembly 3.

In other embodiments, the device further comprises a fourth shielding plate, the fourth shielding plate is arranged opposite to the third shielding plate 7, two opposite sides of the fourth shielding plate are respectively connected with one side of the first shielding plate 51 and one side of the second shielding plate 61 away from the third shielding plate 7, and an opening is formed in the fourth shielding plate, and the opening is arranged along the second direction D2. The first shielding plate 51, the second shielding plate 61, the third shielding plate 7, and the fourth shielding plate enclose the detection channel 4, and an opening of the detection channel 4 on the fourth shielding plate forms an opening.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 2, the apparatus further comprises: and a hanger rail 8.

Specifically, the hanger rail 8 is located above the opening, and the target object 9 is configured to be moved along the extending direction of the opening by being driven by the hanger rail 8. The target object 9 is driven to move along the extending direction of the opening portion to receive scanning in the process of moving from the entrance of the detection channel 4 to the exit of the detection channel 4. Illustratively, the specific structure of one embodiment of the hanger rail 8 may refer to the hanger component 906 and the pipeline 905 as shown in fig. 1, but the disclosure is not limited thereto.

It will be appreciated that the detection channel 4 is provided in an open configuration to facilitate the passage of the object 9 to be detected through the detection channel 4, improving the applicability of the device.

For the purposes of facilitating an understanding of the embodiments of the present disclosure, specific implementation principles of the embodiments of the present disclosure are described.

When the radiation irradiation device is installed, the first support beam 32 and the second support beam 33 may be welded to the main body frame 31 in a predetermined manner, and then the first support beam 32 may be provided with a screw hole to form the installation frame assembly 3. The radiation source 903 is mounted on the first shielding plate 51 in advance, the first scale 12 is provided on the radiation source 903, the first scale value of the first scale 12 is aligned with the beam exit surface, and the first slit 511 is formed in the first shielding plate 51 according to the first mark, thereby forming the radiation source assembly 1. The detector box 1a is mounted on the second shielding plate 61 in advance, the third slit 13a is opened on the detector box 1a according to the main beam surface of the detector in the detector box 1a, the second scale 22 is arranged on the first shielding plate 51, the second scale value of the second scale 22 is aligned with the main beam surface, and the second slit 611 is opened on the second shielding plate 61 according to the second mark, so that the detector assembly 2 is formed. The first shielding plate 51 of the radiation source assembly 1 is mounted on one first support beam 32 of the mounting frame assembly 3 by means of a bolt and screw hole fit, and the second shielding plate 61 of the detector assembly 2 is mounted on the other first support beam 32 of the mounting frame assembly 3 by means of a bolt and screw hole fit. A third shielding plate 7 is laid on the mounting frame assembly 3, and the first shielding plate 51 and the second shielding plate 61 are located on both sides of the third shielding plate 7, respectively. Meanwhile, the hanging rail 8 is positioned above the opening part of the detection channel 4, so that the hanging rail 8 can drive the target object 9 to pass through the detection channel 4.

When the radiation irradiation device works, the hanger rail 8 drives the target object 9 to move along the extending direction of the opening part on the detection channel 4, the target object 9 enters from the inlet of the detection channel 4, when the target object 9 enters the detection channel 4 and enters the detection area, the radiation generated by the radiation source 903 passes through the target object 9 in the detection area through the first slit 511, the radiation passing through the target object 9 is received by the detector in the 13a detector box 1a through the second slit 611 and the third slit in sequence, and the detector analyzes the received radiation.

With respect to the detector assembly, the detector device (i.e., the detector assembly described above) of the embodiments of the present disclosure is described in detail below in connection with fig. 15A-17.

Embodiments of the present disclosure provide a detector device (corresponding to the above-described detector assembly), wherein the detector device comprises: a detector box 1a defining a first accommodation space, one side of the detector box being provided with a third slit 13a for the radiation to pass through; a shielding component 2a, which is positioned in the first accommodating space and defines a second accommodating space, wherein a second slit is arranged on one side of the shielding component 2a for the ray to pass through, and the second slit is aligned with the third slit 13a; s detectors 3a located in the second accommodation space and configured to detect rays passing through the third slit 13a and the second slit, S being an integer greater than or equal to 1; a first seal 4a configured to cover the third slit 13a, wherein the first seal 4a allows radiation to pass through to enter the third slit 13a; wherein the first sealing member cooperates with the probe case such that the first accommodation space is formed as a sealed waterproof space. The detector is arranged in the detector box 1a, the detector box 1a is matched with the first sealing piece, so that the detector 3a can work in a sealed environment, water is not easy to enter, the influence of surrounding humid environment is not easy to occur, the normal work of the detector 3a is ensured, and the service life of the detector 3a is prolonged. And, place S detectors in the second accommodation space that shielding assembly 2a limited, and shielding assembly 2a is placed in detector box 1a, make the detector device can satisfy the design of ray protection, waterproof and dampproofing, protect the internal device from damage. FIG. 15A is a schematic structural view of a detector device according to some exemplary embodiments of the present disclosure; FIG. 15B is a schematic structural view of a detector device according to some exemplary embodiments of the present disclosure, with the lid in an open state; FIG. 15C is a schematic cross-sectional view of the structure at A-A in FIG. 15A.

As shown in fig. 15A, 15B and 15C, the detector device (i.e., the above-mentioned detector 3a assembly) includes: the detector box 1a, the shielding assembly 2a, the S detectors 3a and the first seal 4a.

The detector box 1a defines a first accommodating space, a third slit 13a is arranged on one side of the detector box 1a for the radiation to pass through, the first sealing element 4a is configured to cover the third slit 13a, and the first sealing element 4a allows the radiation to pass through to enter the third slit 13a; the first sealing member 4a cooperates with the probe case 1a to form the first accommodation space as a sealed waterproof space.

The shielding assembly 2a is located in the first accommodating space and defines a second accommodating space, and a second slit through which the radiation passes is arranged on one side of the shielding assembly 2a, which is close to the third slit 13a, and the second slit is aligned with the third slit 13 a.

The device comprises a plurality of detectors 3a, a plurality of mounting frames 9a are arranged in the second accommodating space, and the mounting frames 9a are uniformly distributed at intervals along the first direction D1 (the length direction of the detector box 1 a). One mounting 9a corresponds to one detector 3a, and the detectors 3a are each mounted on the mounting 9 a.

It will be appreciated that when the detector 3a is in operation, a plurality of detectors 3a receive radiation passing through the third slit 13a and at the second slit for analysis. The detector box 1a and the first sealing piece 4a are matched to form a sealed waterproof space, the meat product detection environment is isolated from the working environment of the detector 3a, so that moist air in the meat product detection environment is not easy to influence the working environment of the detector 3a, and good detection performance of the detector 3a is ensured. The detector 3a and the mounting frame 9a are integrally arranged in the sealed waterproof space, so that the outside of the detector box 1a is free from exposed standard parts and adjusting parts, the number of the standard parts on the detector box 1a is reduced, and the aim of reducing the leakage point is fulfilled. Meanwhile, the shielding component 2a can block radiation rays from leaking, so that the detector box 1a has the function of radiation protection.

In some embodiments, with continued reference to fig. 15C, the detector 3a apparatus further includes a third seal 6a. The first seal 4a is located outside the probe box 1a covering the third slit 13a; a third seal 6a is located inside the shielding assembly 2a, the third seal 6a being configured to cover the second slit; the third seal 6a allows rays to pass through to enter each detector 3a, and the first seal 4a and the third seal 6a are both blocking visible light incidence.

Illustratively, the first seal 4a and the third seal 6a may each be a black plastic sheet that is capable of passing radiation while shielding visible light. Making the detector 3a less susceptible to visible light when receiving radiation.

It should be noted that, in the embodiment of the present disclosure, whether the first sealing member 4a and the third sealing member 6a can block visible light is not limited specifically, and may be adjusted according to actual requirements. For example, the first seal 4a may be provided to block the incidence of visible light, and the third seal 6a may be provided not to block the incidence of visible light; the third seal 6a may also be arranged to block visible light incidence and the first seal 4a may be arranged not to block visible light incidence.

It will be appreciated that the first sealing member 4a and the third sealing member 6a can also form a double-layer seal between the third slit 13a and the second slit while shielding visible light, thereby further improving the sealability of the device.

In some embodiments, the probe cassette 1a comprises: a case 11a, a cover 12a and a second seal 5a.

The main body of the box body 11a is rectangular, the box body 11a defines a space for installing each detector 3a, one side of the box body 11a in the second direction D2 (i.e. the upper surface of the box body 11 a) is in an opening shape, the opening is communicated with the space formed by the box body 11a, a third slit 13a through which rays pass is formed in the other side of the box body 11a in the second direction D2 (i.e. the lower surface of the box body 11 a), and the third slit 13a is distributed along the first direction D1 (i.e. the length direction of the box body 11 a).

One side of the box cover 12a is hinged with the box body 11a, the hinge axis is consistent with the length direction of the box body 11a, and the other side of the box cover 12a can realize the opening and closing of the box cover 12a and the box body 11a through a hasp.

The second sealing element 5a is arranged at the connecting area of the box body 11a and the box cover 12a, and the box body 11a, the second sealing element 5a and the box cover 12a are matched to define a first accommodating space; when the cover 12a is in the closed position, the first sealing member 4a cooperates with the case 11a, the cover 12a and the second sealing member 5a to form a first receiving space as a sealed waterproof space.

It will be appreciated that the split design of the sonde cassette 1a facilitates maintenance of the sonde 3a within the cassette 11 a. And the box body 11a, the box cover 12a and the second sealing piece 5a are matched, so that the convenience in use of the detector box 1a can be ensured, and the tightness of the detector box 1a can be ensured.

Fig. 16 is a schematic structural view of a cartridge according to some exemplary embodiments of the present disclosure. Fig. 17 is a schematic structural view of a box cover according to some exemplary embodiments of the present disclosure.

In some exemplary embodiments of the present disclosure, referring to fig. 15C and 17, the case 11a includes: a container portion 111a and a case connecting portion 112a.

The container 111a is used to form a main body of the probe case 1a, the container 111a defines a space for accommodating each probe 3a, one side of the container 111a is open, and the third slit 13a is located on a side of the container 111a away from the opening. The box body connecting portion 112a is located at the opening side, a first end of the box body connecting portion 112a is connected to an opening edge portion of the container portion 111a, and a second end of the box body connecting portion 112a is used for abutting against the box cover 12a.

Referring to fig. 15C and 16, the cap 12a includes a cap body 121a and a cap connection part 122a, and the cap connection part 122a is provided at a circumferential side of the cap body 121 a. When the box cover 12a is fastened to the opening of the box body 11a, the second end of the box body connecting portion 112a is attached to the side of the box cover connecting portion 122a near the box body 11 a.

The connection area comprises a box body connection part 112a and a box cover connection part 122a, the box body connection part 112a and the box cover connection part 122a are matched to form a cavity 7a, the connection parts of the first end of the box body connection part 112a and the opening edge part of the container part 111a are all located in the cavity 7a, the second sealing piece 5a is arranged in the connection area, and the second sealing piece 5a is used for sealing the cavity 7 a.

According to the embodiment of the disclosure, the connection between the first end of the box body connecting part and the opening edge part of the container part is disposed in the cavity, so that the connection part is not exposed outside the cavity to cause water inflow, and the purposes of water resistance and moisture resistance are achieved.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 15C, the open edge portion of the container portion 111a is bent to the outside of the case 11a to form a bent edge 1111a that is horizontally disposed, the bent edge 1111a being integrally formed with the container portion 111 a. The first end of the case connecting portion 112a is connected and fixed to the opening edge portion of the container portion 111 a. The case connecting portion 112a includes a first concave portion 1121a, and the concave direction of the first concave portion 1121a faces the inside of the case 11a and is perpendicular to the radial direction.

Specifically, the first end of the case connecting portion 112a may be fixed at the bent portion of the bent edge 1111a by welding, which requires continuous welding without cold joint.

The connection of the first end of the case connecting portion 112a to the opening edge portion of the container portion 111a includes: the first end of the first recess 1121a is fixedly connected to the bent portion of the bent edge 1111a, and the second side of the first recess 1121a, which is far from the container 111a, is connected to the lid connecting portion 122 a. The first end of the first recess 1121a and the folded edge 1111a are parallel to the slit surface of the container 111a, and the third slit 13a is located on the slit surface. The first recess 1121a, the bent edge 1111a and the lid connecting portion 122a cooperate to form the chamber 7a. The first side edge of the first recess 1121a adjacent to the container portion 111a is in the same plane as the bent edge 1111a, and the first end of the first recess 1121a and the bent edge 1111a are flush to form a first side of the chamber 7a.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 15C, the lid attachment portion 122a includes a second recess 1221a, and the edge portion of the lid 12a has a recessed profile forming the second recess 1221a. The second recess 1221a is connected to the lid body 121a away from the first side of the case 11 a. When the lid 12a is in the closed position, the first recess 1121a is opposite to the second recess 1221a, the second recess 1221a is disposed near the second side of the box 11a and parallel to the bent edge 1111a, and the second side of the second recess 1221a is located between the opposite sides of the first recess 1121 a. The first recess 1121a, the bent edge 1111a and the second recess 1221a cooperate to form a chamber 7a.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 15C and 16, the second recess 1221a coincides with a projected portion of the bent edge 1111a in the radial direction. The end of the second recess 1221a opposite the bent edge 1111a is spaced a distance from the bent edge 1111 a.

In some exemplary embodiments of the present disclosure, with continued reference to fig. 15C, a second seal 5a is positioned within the chamber 7a, the second seal 5a being at least partially positioned between the folded edge 1111a and the second recess 1221a to seal the opening of the chamber 7 a.

The second sealing member 5a is illustratively a self-clamping sealing strip, which is integrally formed. One side of the self-clamping sealing strip is connected with the second side edge of the second concave part 1221a, when the box cover 12a is in the closed position, the self-clamping sealing strip deforms, and the other side of the self-clamping sealing strip abuts against the bending edge 1111 a.

It will be appreciated that when the lid 12a is fastened to the case 11a, as the lid 12a gradually rotates toward the case 11a, the self-clamping sealing strip deforms to seal the opening of the chamber 7a, and the sealed chamber 7a forms a sealing area outside the junction between the case 11a and the lid 12a, so that the junction between the case 11a and the lid 12a is sealed.

In other embodiments, the second sealing member 5a may be a sealing strip with single-sided adhesive, and the sealing strip is sealed by applying adhesive to the opening of the cavity 7a by using an adhesive applying machine, and in the case of using a finished sealing strip, when the box cover 12a is in the closed position, the sealing adhesive is applied to the connection between the sealing strip and the bending edge 1111 a.

In some exemplary embodiments of the present disclosure, as shown in fig. 15C, the shielding assembly 2a includes: a shielding layer 21a, the shielding layer 21a covering the inner side surface of the detector case 1 a.

Specifically, the shielding layer 21a includes: a first shielding layer 211a and a second shielding layer 212a.

The first shielding layer 211a covers the inner side surface of the cap body 121a of the probe case 1 a. The second shielding layer 212a covers the inner surfaces of the container 111a and the case connecting portion 112a, and the first shielding layer 211a and the second shielding layer 212a are in contact with each other at the connecting region of the case 11a and the case cover 12a to define a second accommodating space.

Illustratively, both the first and second shielding layers 211a and 212a may be lead skin.

It will be appreciated that the lead skin prevents radiation leakage from the inside of the case 11a and provides protection. Meanwhile, the lead skin can not leak out due to the structure of the box body 11a, and the lead skin is sealed inside the box body 11a, so that the use safety of the device is improved.

In some exemplary embodiments of the present disclosure, as shown in fig. 15B and 17, to facilitate the opening and closing of the detector box 1 a. The lid 12a includes a plurality of sub-lids 12a, each two adjacent sub-lids 12a being sealingly connected, each sub-lid 12a being openably connected to the body 11a for movement relative to the body 11a between an open position and a closed position.

Specifically, in the embodiment of the disclosure, two sub-box covers 12a are taken as an example, as shown in fig. 16, the device further includes a partition plate 10a, the partition plate 10a is disposed in the middle of the box body 11a, two ends of the partition plate 10a are respectively connected with two opposite sides of the box body 11a along the length direction, the partition plate 10a divides the opening of the box body 11a into a first portion and a second portion, and the partition plate 10a does not divide the interior of the box body 11 a. In the case of the seal design, the first portion of the case connecting portion 112a is fixedly connected to the second portion of the case connecting portion 112a by the partition plate 10a, and the partition plate 10a is integrally formed with the first portion of the case connecting portion 112a and the second portion of the case connecting portion 112 a. At the same time, the shielding layer 21a is provided on the inner side surface of the partition plate 10a, and the shielding layer 21a is integrally provided with the case connecting portion 112a and the shielding layer 21a of the container portion 111 a.

It will be appreciated that in the case where the case body 11a is long, the design of the plurality of case covers 12a facilitates the opening and closing operations of the case covers 12a by the staff.

It should be noted that, in the embodiment of the present disclosure, the data set on the box cover 12a is not specifically limited, and may be adjusted according to the length of the actual box body 11 a. For example, one sub-cap 12a may be provided when the case 11a is small, three, four, or five sub-caps 12a may be provided when the case 11a is long, and the like.

In some exemplary embodiments of the present disclosure, as shown in fig. 15A, the detector 3a apparatus further includes: a plurality of inductive sensors 8a. One induction sensor 8a corresponds to one sub-box cover 12 a. Wherein each inductive sensor 8a is configured to sense whether the corresponding sub-lid 12a is in an open position or a closed position. When the induction sensor 8a inducts that the corresponding sub-box cover 12a is opened, the beam-emitting of the ray source is stopped, so that the use safety of the device is improved.

In other embodiments, the probe case 1a may be integrally formed, and the first accommodating space may be formed as a sealed waterproof space by the cooperation of the probe case 1a and the first sealing member 4 a. And a shielding layer 21a inside the probe case 1a is integrally provided.

Those skilled in the art will appreciate that the features recited in the various embodiments of the invention and/or in the claims may be combined in various combinations and/or combinations even if such combinations or combinations are not explicitly recited in the invention. In particular, the features recited in the various embodiments of the invention and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the invention. All such combinations and/or combinations fall within the scope of the invention.

The embodiments of the present disclosure are described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the embodiments cannot be used advantageously in combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be made by those skilled in the art without departing from the scope of the disclosure, and such alternatives and modifications are intended to fall within the scope of the disclosure.

Claims

1. A detector arrangement comprising:

a bracket portion defining an installation space;

s bearing parts are positioned in the installation space, each bearing part is provided with a positioning mark, each bearing part is connected with the bracket part, and S is an integer greater than or equal to 2;

S detectors which are correspondingly arranged on S bearing parts one by one, wherein a crystal part of each detector is aligned with a positioning mark on the arranged bearing part and is used for receiving rays;

and S positioning marks are arranged on the same straight line, and the straight line is positioned on the beam outlet surface of the ray.

2. The apparatus of claim 1, further comprising:

s adjusting parts are connected with the S bearing parts in a one-to-one correspondence manner;

wherein each of the adjustment portions is configured to apply a force to the connected carrier portion to change a position of the connected carrier portion within the installation space so that the S positioning marks are positioned on the same straight line.

3. The apparatus of claim 2, wherein the bracket portion comprises:

a first side bracket;

a second side bracket opposite to the first side bracket, wherein the first side bracket and the second side bracket define the installation space therebetween;

the S adjusting parts at least penetrate through the first side bracket and are connected with the S bearing parts.

4. A device according to claim 3, wherein each of the carriers comprises:

a carrier body configured to allow the probe to be mounted;

And the convex part is connected with the edge of the bearing main body and is connected with the corresponding adjusting part.

5. The apparatus of claim 4, wherein,

the carrier body includes a carrier plate configured to allow mounting of a detector;

the convex part comprises a bending part connected with the edge of the bearing plate, and the bending part is connected with the corresponding adjusting part.

6. The apparatus of claim 5, wherein,

k grooves are formed in each adjusting portion, each bending portion is provided with a clamping structure clamped into any groove of the connected adjusting portion, and K is an integer greater than or equal to 1.

7. The apparatus of claim 6, wherein,

each adjusting part comprises a threaded rod, and each clamping structure comprises an opening on the bending part;

wherein each of the threaded rods is configured to extend into the aperture of the connected bent portion, and any one of the grooves formed by the threads thereon is allowed to be caught by the aperture edge of the connected bent portion.

8. The apparatus of any of claims 3-7, further comprising:

and S connecting pieces, wherein S bearing parts are connected with the bracket parts through S connecting pieces.

9. The apparatus of claim 8, wherein each of the connectors comprises:

a first connecting plate including a first plate extending in a first direction parallel to the beam exit face and a second plate extending in a second direction perpendicular to the second direction,

wherein the first plate is configured to be connected with the first side bracket, and the second plate is configured to be connected with a corresponding carrier portion side.

10. The apparatus of claim 9, wherein,

each bearing part comprises at least one long hole, each second plate comprises at least one mounting hole corresponding to each long hole on the connected bearing part one by one, and the corresponding long holes are connected with the mounting holes through screws;

wherein each of the elongated holes extends in the second direction, and for any one of the bearing portions, when it moves in response to a force applied by the connected adjustment portion, any one of the elongated holes communicates at least partially with the corresponding mounting hole for screw connection.

11. The apparatus of claim 9 or 10, wherein each of the connectors further comprises:

a second connection plate including a third plate extending in the first direction and a fourth plate extending in the second direction,

Wherein the third plate is configured to be connected with the second side bracket, and the fourth plate is configured to be connected with the other side of the corresponding bearing part.

12. The apparatus of claim 5, wherein the positioning mark on each of the carriers comprises:

the first side of the bearing plate is opposite to the second side of the bearing plate.

13. The apparatus of claim 9, wherein,

each bearing part also comprises a first positioning hole, each second plate also comprises a second positioning hole,

wherein, for any of the bearing portions, the first positioning hole thereon is aligned with the second positioning hole of the connected second plate.

14. A radiation irradiating apparatus comprising:

a radiation source configured to emit radiation;

the detector arrangement of any one of claims 1 to 13 configured to detect the radiation.