CN218824728U - Detection apparatus for quick scanning formation of image - Google Patents

Abstract

The utility model relates to a detection device of quick scanning formation of image belongs to radiation imaging technical field, has solved the problem that current CT safety inspection equipment can not form images fast to not only high but also long jumbo size object. The detection device for fast scanning imaging comprises a moving component and a static imaging component; the moving assembly is used for transferring and conveying detection objects and comprises a rotary table and a conveying device, and the conveying device is used for conveying the rotary table and the detection objects borne on the rotary table; the static imaging component is used for scanning and imaging the detection object in conveying. The utility model discloses can effectively improve the efficiency of scanning formation of image, can scan the detection object of various sizes fast, high-efficient and in a flexible way, improve the throughput rate of scanning object.

Description

Detection apparatus for quick scanning formation of image

Technical Field

The utility model relates to a radiation imaging technology field especially relates to a detection device of quick scanning formation of image.

Background

Among X-ray-based explosive inspection technologies, X-ray Computed Tomography (CT) technology is highly regarded in the field of security inspection because of its own unique advantages. An EDS (application Detection System) type Security inspection device uniquely authenticated by the Transportation Security Administration (TSA) is a CT device, and the position of the X-ray CT technology in the Security inspection field can be seen.

At present, for some CT security inspection equipment for large-sized articles such as aviation boxes, the articles are generally adopted to rotate along with a rotating platform, and a detector and a ray source run along the direction of the rotating shaft. For larger sized objects, especially longer length and/or taller objects, it is time consuming to acquire scan data for the entire object.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention aims to provide a detection device for fast scanning imaging, which is used to solve the problem that the existing CT security inspection equipment cannot fast image the tall and long large-sized object.

The purpose of the utility model is mainly realized through the following technical scheme:

the utility model provides a detection device for fast scanning imaging, which comprises a motion component and a static imaging component; the moving assembly is used for transferring and conveying the detection object and comprises a rotary table and a conveying device, and the conveying device is used for conveying the rotary table and the detection object borne on the rotary table; the static imaging component is used for scanning and imaging the detection object in conveying.

Optionally, the static imaging assembly includes a plurality of static imaging subunits, and the static imaging subunits include a radiation source and a detector assembly corresponding to the radiation source; the ray source and the detector assembly are respectively positioned on two sides of the detection object.

Optionally, the transfer device comprises a conveying track and a moving table mounted on the conveying track, and the turntable is rotatably connected to the moving table.

Optionally, the radiation sources of different static imaging subunits are arranged in different planes along the travelling direction of the detection object.

Optionally, the static imaging assembly includes a radiation source and a plurality of detector assemblies corresponding to the radiation source.

Optionally, the detector assemblies are arranged in the same plane along the traveling direction of the detection object.

Optionally, the horizontal distances of the radiation sources of different static imaging subunits from the axial direction of the gantry are not exactly the same.

Optionally, the distances of the radiation sources of different static imaging subunits from the horizontal plane are not exactly the same.

Optionally, the detector assemblies of different static imaging subunits are arranged one above the other in the direction of travel of the test object.

Optionally, the detector assemblies of different static imaging subunits are spaced apart along a direction perpendicular to the direction of travel of the inspected object.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

(1) The utility model discloses a set up a plurality of radials on the advancing direction (for example the horizontal direction) of object, can satisfy the detection to the longer object of length to owing to can scan at the object in-process of marcing, so effectively shortened check-out time, improve detection efficiency.

(2) The utility model discloses a static imaging subassembly includes a plurality of static imaging subunits, and every static imaging subunit all includes the ray source and the detector that corresponds with this ray source, through setting up a plurality of ray sources to highly differentiating in vertical direction (ray source is not exactly the same apart from the horizontal plane promptly), and through setting up a plurality of ray sources to differentiating in the horizontal direction (ray source is not exactly the same apart from the axial horizontal distance of revolving stage promptly), make the utility model discloses a detection device can enough scan highly higher object, can scan the longer object of length again to and not only high but also long object, for example air container.

(3) The utility model discloses the irradiation region of adjacent ray source of control has the overlap (different static formation of image subelements promptly detector module overlaps along the direction of travel that detects the object and sets up), can satisfy and acquire complete scanning data, can not appear rebuilding the relatively poor condition of quality again because of the ray cone angle is too big.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

Fig. 1 is a schematic top view of a detection apparatus for rapid scanning imaging according to an embodiment of the present invention;

fig. 2 is a schematic top view of a detection apparatus for fast scan imaging according to another embodiment of the present invention.

Reference numerals:

1-a radiation source;

2-a detector;

3, rotating the platform;

4-a transfer device; 41-mobile station; 42-an adapter; 43-a conveying track;

5-detecting the object.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

Example one

The utility model discloses a detection device for fast scanning imaging, which comprises a motion component, a static imaging component, a control unit and a data processing unit; the motion assembly is used for transferring and conveying the detection object; the static imaging component is used for scanning and imaging the detection object in conveying; the control unit is used for controlling the motion assembly and the static imaging assembly; the data processing unit is used for processing the data obtained by the static imaging component.

The utility model provides a detection device of quick scanning formation of image, mainly used scan the detection object in the motion, and the static imaging subassembly that specifically sets up through fixed scans the formation of image to the detection object in the motion to acquire the three-dimensional stereo image who detects the object.

The control unit controls the static imaging assembly and the motion assembly, so that scanning of different angles, different postures and different motion forms of a detected object can be realized, the control of different ray sources is combined, the higher coverage degree of the scanning process can be ensured, the obtained scanning data is reconstructed through the data processing unit, and the completeness of the obtained three-dimensional image data is ensured.

Based on the static scanning to detecting the object, the motion subassembly needs to satisfy the requirement of bearing the weight of to detecting the object to and can drive and detect the object and rotate, in order to reach the scanning effect under the multi-angle multi-attitude. Specifically, the motion subassembly includes two kinds of different forms that revolving stage or revolving stage and conveyer combine, and the revolving stage is used for bearing the weight of the detection object to drive the detection object and rotate, the revolving stage drives the detection object and can carry out the concentric axis around the axle center of revolving stage and rotate, also can drive the detection object and carry out eccentric rotation around the axle center of revolving stage, need satisfy when the scanning to detecting the flat rotation of object on the level, make the detection object obtain abundant scanning. The scanning of the object to be detected under different angles is realized by controlling the static and dynamic states of the rotary table or controlling the rotating speed of the rotary table.

The conveying device is used for conveying the rotary table and the detection object borne on the rotary table, and can enable the detection object to perform static scanning while advancing.

The static imaging component comprises a ray generating device and a detector component which are respectively arranged on two sides of the moving component, and the ray generating device comprises a plurality of scattered ray sources. The control device can control the radiation sources distributed dispersedly to be started singly or scan the detection object in a mode of starting a plurality of radiation sources simultaneously, so that the flexibility is improved, and the coverage is improved pertinently.

The utility model discloses a ray source has multiple mode of arranging, and a plurality of ray sources can distribute on coplanar or different planes, and in the coplanar, a plurality of ray sources can be arranged for straight line, pitch arc or other shapes. If the arrangement is a straight line, the adjacent ray sources can be arranged at equal intervals or non-equal intervals. By controlling the opening of different ray sources and combining the rotation or the conveying of the detection object by the motion assembly, different positions and different visual angles of the detection object can be scanned.

The radiation source comprises any one or combination of a plurality of X-ray accelerator radiation sources, linear accelerators, X-ray generators and radioactive sources, and can be actually adjusted according to specific scanning requirements.

After the ray source emits rays, the rays pass through a detection object and are received by the detector assembly to generate scanning data. Specifically, the detector assembly comprises a plurality of detectors, the detectors comprise any one or combination of a single-energy detector, a dual-energy detector and a photon counting detector, and scanning imaging data can be effectively received through the detectors, so that normal scanning imaging is guaranteed.

Based on the different distribution state of radiation source, the utility model provides a plurality of detectors can distribute with area array, pitch arc or sharp form, and radiation source and detector set up respectively in the both sides of motion subassembly, can accomplish the normal scanning that detects the object.

It should be noted that, for a specific scanning condition, the line or plane where the radiation source is located may be parallel to the axial direction (i.e. the rotation axis) of the turntable, or the line or plane where the radiation source is located is inclined with respect to the axial direction of the turntable, which can meet the imaging requirements in different scanning states.

The utility model provides a control unit includes static imaging control unit and motion subassembly the control unit, and ray source and detector all are connected with static imaging the control unit electricity, and the control of static imaging subassembly especially ray source is mainly gone on through static imaging the control unit, specifically controls through the procedure that sets up in static imaging the control unit.

The rotary table and the mobile station are respectively provided with a rotating motor and a moving motor, and the rotating motor and the moving motor are both electrically connected with the motion component control unit. Through motion assembly the control unit control rotation motor and moving motor, can realize detecting the different positions of object, scanning formation of image under different angles and the different states, motion assembly the control unit can control rotation motor and moving motor respectively, realize the revolving stage and rotate, conveyer carries and the different combination of two kinds of motion states, satisfy the operating mode requirement of multiple scanning formation of image, combine the control to different ray sources open mode, the lift action of having avoided going on the object, the scanning degree of difficulty has been reduced, the passing rate of detecting the object has effectively been improved.

First embodiment

Fig. 1 is a schematic top view of the detection apparatus, which includes a moving assembly in the form of a combination of a turntable 3 and a conveying device 4, and a radiation source 1 and a detector 2 respectively disposed on two sides of the moving assembly.

Wherein conveyer 4 includes conveying track 43 and installs the mobile station 41 on conveying track 43, and revolving stage 3 rotationally connects on mobile station 41, detects the load of object 5 on revolving stage 3, is provided with adapter 42 between revolving stage 3 and the mobile station 41, and revolving stage 3 can drive on adapter 42 and detect object 5 and rotate. The radiation source 1 in the present embodiment comprises a plurality of X-ray generators. It should be noted that there are various arrangements of the plurality of X-ray generators. Specifically, the plurality of X-ray generators have a difference in position in a direction perpendicular to the turntable central axis 31 in addition to a difference in position in the direction of the turntable central axis 31.

The plurality of X-ray generators of this embodiment are arranged in the same source plane, which is parallel to the central axis 31 of the turntable.

The detectors 2 arranged opposite to the radiation sources 1 are arranged in a partitioned manner, corresponding to the radiation sources 1, respectively, and in order to ensure the integrity of the scanning data, the adjacent detectors 2 have an overlapping region in the direction of the central axis 31 of the turntable, as shown in fig. 1. In addition, because irradiation regions of the adjacent radiation sources corresponding to the detectors may overlap, the static imaging control unit is required to perform time sequence control on the turn-on of the radiation source 1 and the data acquisition of the detector 2, so as to ensure that the radiation sources 1 in the irradiation overlapping regions of the same detector 2 are not turned on at the same time. After passing through the detection object 5, rays emitted by the ray source 1 can strike the detector 2 which is arranged in the opposite subareas, and the scanning data is reconstructed through the data processing unit to obtain a three-dimensional image of the detection object 5.

During the imaging scan of the test object 5, by means of the conveyor 4, after the test object 5 is placed on the turn table 3, the turn table 3 is rotated while the moving table 41 below the turn table 3 can convey the turn table 3 and the test object 5 loaded on the turn table 3 along the conveying rail 43.

Based on the above-mentioned conveying form, the detecting device in this embodiment can start the radiation source 1 and the detector 2 for data acquisition after the object rotates with the turntable 3 and the detecting object 5 moves in the horizontal direction into the scanning field of view under the conveying of the conveying device 4.

Except that data are rebuild, the utility model provides a data processing unit still includes image display module and suspect mark identification module, can carry out image display and suspect mark discernment etc to improve detection device's the rapidity of discerning and security installations efficiency.

Second embodiment

The present embodiment provides another fast scan imaging detection apparatus, as shown in fig. 2. This embodiment differs from the first embodiment in that the number of radiation sources 1 is 1, and a plurality of detector modules are arranged in the same plane in the traveling direction of the inspection object. Specifically, the plurality of detector assemblies are arranged in a straight line along the traveling direction of the detection object.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. The detection device for the fast scanning imaging is characterized by comprising a moving component and a static imaging component;

the moving assembly is used for transferring and conveying detection objects and comprises a rotary table and a conveying device, and the conveying device is used for conveying the rotary table and the detection objects borne on the rotary table;

the static imaging component is used for scanning and imaging the detection object in conveying.

2. The apparatus for fast scan imaging detection according to claim 1, wherein the static imaging module comprises a plurality of static imaging subunits, the static imaging subunits comprise a radiation source and a detector module corresponding to the radiation source; the ray source and the detector assembly are respectively positioned on two sides of the detection object.

3. The apparatus according to claim 2, wherein the conveyor comprises a conveying track and a moving table mounted on the conveying track, and the turntable is rotatably connected to the moving table.

4. The apparatus according to claim 2, wherein the radiation sources of different static imaging subunits are arranged in different planes along the traveling direction of the object to be detected.

5. The apparatus for fast scan imaging detection according to claim 1, wherein the static imaging assembly comprises a radiation source and a plurality of detector assemblies corresponding to the radiation source.

6. The inspection apparatus for fast scan imaging according to claim 5, wherein the detector assemblies are arranged in the same plane along the traveling direction of the inspection object.

7. The apparatus for fast scan imaging detection according to claim 4, wherein the horizontal distances from the source of radiation of different static imaging subunits to the axial direction of the gantry are not exactly the same.

8. The apparatus of claim 7, wherein the distances of the radiation sources of different static imaging subunits from the horizontal plane are not identical.

9. The inspection device of claim 4, wherein the detector modules of different static imaging subunits are arranged in an overlapping manner along the traveling direction of the inspected object.

10. The apparatus for rapid scan imaging according to claim 2, wherein the detector elements of different static imaging subunits are spaced apart in a direction perpendicular to the direction of travel of the object under inspection.

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