CN202041481U - X-ray computer tomography (CT) channel-type security check machine - Google Patents
X-ray computer tomography (CT) channel-type security check machine Download PDFInfo
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- CN202041481U CN202041481U CN2011200948260U CN201120094826U CN202041481U CN 202041481 U CN202041481 U CN 202041481U CN 2011200948260 U CN2011200948260 U CN 2011200948260U CN 201120094826 U CN201120094826 U CN 201120094826U CN 202041481 U CN202041481 U CN 202041481U
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Abstract
The utility model discloses an X-ray computer tomography (CT) channel-type security check machine, which comprises a machine body, a cylindrical scanning measurement channel and a conveyor belt, wherein the cylindrical scanning measurement channel is arranged in the machine body, and the conveyor belt penetrates through the inlet and the outlet of the scanning measurement channel. The X-ray CT channel-type security check machine is characterized in that an annular rotary frame is rotatablely arranged in the scanning measurement channel, and the rotary frame is encircled outside the conveyor belt. The X-ray CT channel-type security check machine also comprises a plurality of X-ray machines and front collimators thereof and detector arrays which correspond to all the X-ray machines one to one, wherein the X-ray machines and the detector arrays are distributed on the rotary frame at intervals along the circumference. The X-ray CT channel-type security check machine disclosed by the utility model has a simple structure, a perfect function, safe and reliable equipment and low cost and has an obvious cost performance advantage.
Description
Technical field:
The utility model relates generally to a kind of X ray CT channel-type screening machine.
Background technology:
At present, there are many problems in the on-the-spot both at home and abroad CT channel-type screening machine that uses:
The first, limited angle X ray CT, spiral CT and conical beam CT also are not suitable for the channel-type safety check at present.What be fit to the channel-type safety check has only traditional X ray CT now, obtain the higher image of resolution, needs a large amount of data for projection, satisfy the requirement of angle sampling rate, promptly must satisfy the Nyquist sampling thheorem, so data volume is quite big.The time that certain data are obtained and handled is also correspondingly longer, and radiation dose is also higher.On physical construction, detector array and X-ray production apparatus all need rotate more than 360 °, cause total system huge and heavy.
The second, existing is single CT pattern, can not specifically discern particularly inflammable explosive article of light materials, and therefore, accuracy is relatively poor, and for example, the false alarm rate of product MVT-HR of U.S. L3 company and Examiner 3DX6000 is up to 20%～30%.
The 3rd, cost an arm and a leg, for example, L3 company said two products price is respectively 400,000 dollars and 1,050,000 dollars.
The utility model content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of X ray CT channel-type screening machine is provided, it is with X ray transmission (DR), compton backscattering scanning (CBS) and three kinds of patterns of computed tomography imaging technique (CT) are combined on the machine and shared same set of measurement mechanism, the on-the-spot use of being more convenient for.
The utility model is achieved through the following technical solutions:
A kind of X ray CT channel-type screening machine, the travelling belt that includes body, the interior columniform scanning survey passage of body and connect scanning survey passage import and export, it is characterized in that: be rotatablely equipped with the rotating frame of annular in the described scanning survey passage, described rotating frame is looped around outside the travelling belt; Include some X-ray production apparatus and preceding collimating apparatus thereof and with each X-ray production apparatus detector array one to one, described X-ray production apparatus and detector array along circumferentially-spaced on rotating frame.
Described a kind of X ray CT channel-type screening machine, it is characterized in that: described X-ray production apparatus includes X-ray production apparatus I, X-ray production apparatus II and X-ray production apparatus III, is respectively equipped with corresponding preceding collimating apparatus on every X-ray production apparatus; Described detector array includes detector array I, detector array II and detector array III.
Described a kind of X ray CT channel-type screening machine, it is characterized in that: described detector array is circular arc.
Described a kind of X ray CT channel-type screening machine, it is characterized in that: described detector array all is with shielding box outward.
The structure of described travelling belt is made up of the stainless steel liner plate of motorized pulleys, driven cylinder, driving belt, installation frame and belt below etc.
Have 3 X-ray production apparatus and 3 circular arc detector array architectures corresponding with it in the described columniform scanning survey passage, they are installed on the rotating frame of annular according to certain angle intervals, and by 120 ° of motor-driven rotating frame rotations.
The utility model adopts same set of scanning and measuring apparatus on a screening machine, obtain DR, CBS and three kinds of detecting patterns of CT.
The utility model adopts 3 X-ray production apparatus and corresponding 3 detector arrays, press certain angle along circumference on rotating frame, need only rotate 120 ° of CT tomoscan data that can obtain 360 °.
The utility model adopts following scanning to detect step:
The first step, three X-ray production apparatus emissions separately successively, three detector arrays receive X ray, i.e. DR pattern successively separately;
Second step, X-ray production apparatus (II) emission X ray, detector array (I) and detector array (III) receive the X ray of measured object scattering, i.e. CBS pattern;
In the 3rd step, as required, three X-ray production apparatus are launched X ray simultaneously, and three detector arrays receive the X ray of transmission measured object simultaneously, and rotation synchronously (need only 120 °), sample by software requirement in rotary course, i.e. the CT pattern.
The utility model is with X ray digitized photograph (DR-Digital Radiography), and X ray compton backscattering scanning (CBS-Compton Backscatter Scanning) technology and three kinds of patterns of computed tomography imaging (CT-Computed Tomography) technology are combined in shared same set of scanning and measuring apparatus in the screening machine.Utilize DR technology for detection metal contraband goods, utilize particularly inflammable explosive article of CBS technology for detection light materials contraband goods, utilize the CT technology to distinguish the various piece of interior of articles in detail, the solution article huddle, overlap problem.Solve each difficult problem that the channel-type screening machine is faced this system perfecting, be widely used in the anti-terrorism safety check of various occasions.
The utility model has the advantages that:
1, compare with other X ray channel-type screening machines, the utility model function is the most perfect: utilize DR mode detection metal contraband goods, utilize CBS mode detection inflammable explosive article, utilize CT to solve that various objects huddle, overlap problem simultaneously, detection accuracy is good.
2, structure is the simplest: three kinds of patterns adopt same set of scanning and measuring apparatus, and the CT pattern need only rotate 120 °, can adopt modular design, therefore are convenient to install and move, and volume is less, weight is lighter, and floor area is little.
3, three kinds of patterns obtain three kinds of images, and can obtain 3-D view.
4, device security is reliable, and cost is low, has significant superiority of effectiveness.
5, software function is powerful.
6, detection speed is fast.
Description of drawings:
Fig. 1 is a front view of the present utility model.
Fig. 2 is a left view of the present utility model.
Fig. 3 is the structural representation at rotating frame position in the utility model
Loseing that number in the figure is represented is as follows:
1, body
2, scanning survey passage
3, channel entrance
4, channel outlet
5, travelling belt
6, rotating frame
7, X-ray production apparatus I
8, X-ray production apparatus II
9, X-ray production apparatus III
10, preceding collimating apparatus
11, detector array I
12, detector array II
13, detector array III
14, shielding box
15, motor
16, object to be detected
17, the plane fladellum of X-ray production apparatus I emission
18, the plane fladellum of X-ray production apparatus II emission
19, the plane fladellum of X-ray production apparatus III emission
Embodiment:
Referring to accompanying drawing.
A kind of X ray CT channel-type screening machine, the travelling belt 5 that includes body 1, body 1 interior columniform scanning survey passage 2 and connect scanning survey passage import and export 3,4, be rotatablely equipped with the rotating frame 6 of annular in the scanning survey passage 2, described rotating frame 6 is looped around outside the travelling belt 5; Include three X-ray production apparatus: X-ray production apparatus I 7, X-ray production apparatus II 8 and X-ray production apparatus III 9.Collimating apparatus 10 before being respectively equipped with on every X-ray production apparatus.Also include and each X-ray production apparatus detector array of circular arc, i.e. detector array I 11, detector array II 12 and detector array III 13 one to one.Each detector array all is with shielding box 14 outward.Described three X-ray production apparatus and three detector arrays along circumferentially-spaced on rotating frame 6.Described rotating frame 6 rotates by motor 15 controls.
Be placed on when object to be detected 16 on the travelling belt 5 at scanning survey channel entrance 3 positions, when travelling belt 5 is sent to object to be detected 16 in the edge, rotating frame 6 fronts, X-ray production apparatus I 7 on the rotating frame 6, X-ray production apparatus II 8 and X-ray production apparatus III 9, detector array I 11, detector array II 12, detector array III 13 are carried out three kinds of mode scanning to object to be detected 16 and are detected under the driving of motor 15, then deliver to rotating frame 6 back edges, send by scanning survey channel outlet 4 at last by travelling belt 5.
When object to be detected 16 enters rotating frame 6 inside, the first step; X-ray production apparatus I 7 is carried out the DR sampling by collimating apparatus 10 plane of departure fladellums 17 transmission objects to be detected 16 backs by detector array III 12, then X-ray production apparatus II 8 is carried out the DR sampling by collimating apparatus 10 plane of departure fladellums 18 transmission objects to be detected 16 backs by detector array II 12, and then X-ray production apparatus III 9 is carried out the DR sampling by collimating apparatus 10 plane of departure beams 19 transmission objects to be detected 16 backs by detector array I 11 again.Second step; X-ray production apparatus II 8 emission X ray enter detector array I 11 after object to be detected 16 scatterings and detector array III 13 is carried out the CBS sampling.The 3rd step, X-ray production apparatus X-ray production apparatus I 7, X-ray production apparatus II 8 and X-ray production apparatus III 9 and detector array I 11, detector array II 12, detector array III 13 are carried out the CT scan sampling along with rotating frame 6 turns clockwise 120 ° under motor 15 drives in rotary course.
Claims (4)
1. X ray CT channel-type screening machine, the travelling belt that includes body, the interior columniform scanning survey passage of body and connect scanning survey passage import and export, it is characterized in that: be rotatablely equipped with the rotating frame of annular in the described scanning survey passage, described rotating frame is looped around outside the travelling belt; Include some X-ray production apparatus and preceding collimating apparatus thereof and with each X-ray production apparatus detector array one to one, described X-ray production apparatus and detector array along circumferentially-spaced on rotating frame.
2. a kind of X ray CT channel-type screening machine according to claim 1, it is characterized in that: described X-ray production apparatus includes X-ray production apparatus I, X-ray production apparatus II and X-ray production apparatus III, is respectively equipped with corresponding preceding collimating apparatus on every X-ray production apparatus; Described detector array includes detector array I, detector array II and detector array III.
3. a kind of X ray CT channel-type screening machine according to claim 1 and 2, it is characterized in that: described detector array is circular arc.
4. a kind of X ray CT channel-type screening machine according to claim 1 and 2, it is characterized in that: described detector array all is with shielding box outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200948260U CN202041481U (en) | 2011-04-02 | 2011-04-02 | X-ray computer tomography (CT) channel-type security check machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200948260U CN202041481U (en) | 2011-04-02 | 2011-04-02 | X-ray computer tomography (CT) channel-type security check machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041481U true CN202041481U (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200948260U Expired - Fee Related CN202041481U (en) | 2011-04-02 | 2011-04-02 | X-ray computer tomography (CT) channel-type security check machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN202041481U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818810A (en) * | 2012-05-08 | 2012-12-12 | 西安筑波科技有限公司 | X-ray nondestructive testing device |
| CN103674979A (en) * | 2012-09-19 | 2014-03-26 | 同方威视技术股份有限公司 | CT (computed tomography) luggage safety inspection system and detector device of CT safety inspection system |
| CN103901491A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system |
| CN103901057A (en) * | 2012-12-31 | 2014-07-02 | 同方威视技术股份有限公司 | Item inspection device using distributed X-ray source |
| CN108549112A (en) * | 2018-04-24 | 2018-09-18 | 貊大卫 | A kind of high speed real-time computed tomography safe examination system |
| CN109932376A (en) * | 2019-04-30 | 2019-06-25 | 王振 | A kind of liquid detecting method and device |
| CN114624785A (en) * | 2022-05-16 | 2022-06-14 | 天津速通科技有限公司 | Same light source setting method suitable for novel double-source mixed detection type channel type security inspection system |
-
2011
- 2011-04-02 CN CN2011200948260U patent/CN202041481U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818810A (en) * | 2012-05-08 | 2012-12-12 | 西安筑波科技有限公司 | X-ray nondestructive testing device |
| CN102818810B (en) * | 2012-05-08 | 2015-11-25 | 西安筑波科技有限公司 | X ray nondestructiving inspecting equipment |
| CN103674979A (en) * | 2012-09-19 | 2014-03-26 | 同方威视技术股份有限公司 | CT (computed tomography) luggage safety inspection system and detector device of CT safety inspection system |
| US9864091B2 (en) | 2012-09-19 | 2018-01-09 | Nuctech Company Limited | CT security inspection system for baggage and detector arrangement thereof |
| CN103901491B (en) * | 2012-12-27 | 2017-10-17 | 同方威视技术股份有限公司 | Human body back scattering safe examination system |
| CN103901491A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system |
| CN103901057A (en) * | 2012-12-31 | 2014-07-02 | 同方威视技术股份有限公司 | Item inspection device using distributed X-ray source |
| US9341736B2 (en) | 2012-12-31 | 2016-05-17 | Tsinghua University | Goods inspection apparatus using distributed X-ray source |
| CN103901057B (en) * | 2012-12-31 | 2019-04-30 | 同方威视技术股份有限公司 | The article check device of distributed X-ray source is used |
| CN108549112A (en) * | 2018-04-24 | 2018-09-18 | 貊大卫 | A kind of high speed real-time computed tomography safe examination system |
| CN109932376A (en) * | 2019-04-30 | 2019-06-25 | 王振 | A kind of liquid detecting method and device |
| CN109932376B (en) * | 2019-04-30 | 2023-11-28 | 王振 | Liquid detection method and device |
| CN114624785A (en) * | 2022-05-16 | 2022-06-14 | 天津速通科技有限公司 | Same light source setting method suitable for novel double-source mixed detection type channel type security inspection system |
| CN114624785B (en) * | 2022-05-16 | 2022-08-19 | 天津速通科技有限公司 | Same light source setting method suitable for novel double-source mixed detection type channel type security inspection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hefei CBS Electronics Science Technique Co.,Ltd. Assignor: Ding Houben|Ding Rong Contract record no.: 2012340000325 Denomination of utility model: X-ray computer tomography (CT) channel-type security check machine Granted publication date: 20111116 License type: Exclusive License Record date: 20121022 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20150402 |
|
| EXPY | Termination of patent right or utility model |