CN101113961A - Image-forming system with X-ray backscattering and tomography scanning - Google Patents
Image-forming system with X-ray backscattering and tomography scanning Download PDFInfo
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- CN101113961A CN101113961A CNA2006100294138A CN200610029413A CN101113961A CN 101113961 A CN101113961 A CN 101113961A CN A2006100294138 A CNA2006100294138 A CN A2006100294138A CN 200610029413 A CN200610029413 A CN 200610029413A CN 101113961 A CN101113961 A CN 101113961A
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- backward scattering
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Abstract
The invention relates to an imaging system with the function of X-ray backscatter and tomoscan, which includes X-actinogen, a monitoring and scanning machine, a revolving means, a driving means and processing circuit. The monitoring and scanning machine is arranged on the front end of the X-actinogen, which comprises a collimating element, a backscattering detector and a transmission detector. The backscattering detector is positioned at the front of the collimating element while the transmission detector is arranged opposite the backscattering detector. The invention provides an imaging system with the function of X-ray backscatter and tomoscan for detecting and scanning The system distinguishes different material by three-dimension graphics and backscatter image processing after backscattering and tomoscan, thus enhancing the ability of assessment dynamite and detonator.
Description
Technical field
The present invention relates to a kind of imaging system, relate in particular to a kind of imaging system with X ray backward scattering and tomoscan.
Background technology
Most existing X ray safety check system mainly is to use x-ray source, produces the ray of covering of the fan, receives with the detector linear array again, forms the transmission projection image.If various materials overlap, just influenced the judgement of material.Use double energy X-ray to carry out that material judges though also have, also only can distinguish organism and inorganics, can not further differentiate explosive soap etc., very easily cause supervisory personnel's erroneous judgement.
Backward scattering is exactly that incident electron and detection material atom out orbit electronics or free electron bump and part that scattering is returned.Know now: the backward scattering radiant quantity is relevant with the atomic number and the density of detecting material.Therefore, by backscattering technique, can survey the atomic number and the density of analyte, thereby effectively differentiate material.
Summary of the invention
The invention provides a kind of imaging system with X ray backward scattering and tomoscan, carry out backward scattering and tomoscan to being detected material, by processing to 3-D view and backscatter images, distinguish different materials, improve the ability of dangerous material such as judging explosive, detonator.
For achieving the above object, a kind of imaging system provided by the invention with X ray backward scattering and tomoscan, it comprises x-ray source, detection scanning mechanism, whirligig and driving mechanism also comprise treatment circuit;
Described detection scanning mechanism is arranged at the front end of x-ray source, and it comprises collimating apparatus, backward scattering detector and transmission detectors; Described backward scattering detector is arranged at the front of described collimating apparatus, and described transmission detectors is arranged at the opposite of described backward scattering detector;
Described collimating apparatus is a circular arc sheet, the middle part of this collimating apparatus one side is provided with the straight-line groove of level, be used to collimate the covering of the fan of the X ray of transmission, be convenient to carry out the tomoscan imaging, one aperture is set on the opposite side of this collimating apparatus, drives collimating apparatus when whirligig is rotated at driving mechanism, X ray is by the aperture on the described collimating apparatus, just form flying spot, be convenient to carry out back scattering imaging;
Described backward scattering detector and described transmission detectors are circular arc sheet;
Described backward scattering detector is provided with opening, and straight horizontal wire casing and aperture on this opening and the described collimating apparatus are in same plane;
Described whirligig is arranged between described backward scattering detector and the described transmission detectors, and this whirligig can horizontally rotate, and also can raise and reduce, and puts detected object on this whirligig;
Described driving mechanism connects described collimating apparatus and described whirligig, drives the motion of this collimating apparatus and whirligig;
Described treatment circuit connects described backward scattering detector and described transmission detectors, and the signal that backward scattering detector and transmission detectors receive is handled back input computing machine;
When detecting, at first will be placed on the whirligig by detected object, the drive mechanism whirligig drives this object and is rotated, and x-ray source will be launched X ray, collimate through the straight-line groove on the collimating apparatus, penetrate object, received, through after the processing circuit processes by the transmission detectors of circular arc sheet, signal is input to computing machine, generates the sectioning image of luggage; Whirligig stops the rotation then, x-ray source continues the emission X ray, driving mechanism drives the collimating apparatus rotation, form flying spot, beat and on object, produce scattered x-ray, received by the backward scattering detector, after the treated processing of circuit, be input to computing machine and convert a column of figure backscatter images that can in display, show to; The drive mechanism whirligig drives the object rising then, repeats said process, thereby obtains the 3-D transmission image of object and complete backscatter images.
A kind of imaging system provided by the invention with X ray backward scattering and tomoscan, carry out backward scattering and tomoscan to being detected material, by processing to 3-D view and backscatter images, distinguish different materials, improve the ability of dangerous material such as judging explosive, detonator.
Description of drawings
Fig. 1 is a kind of structural representation with imaging system of X ray backward scattering and tomoscan provided by the invention;
Fig. 2 is the structural representation of the collimating apparatus of a kind of imaging system with X ray backward scattering and tomoscan provided by the invention;
Fig. 3 is the structural scheme of mechanism of the backward scattering detector of a kind of imaging system with X ray backward scattering and tomoscan provided by the invention.
Embodiment
Followingly specify a kind of preferred forms of the present invention according to Fig. 1～Fig. 3:
As shown in Figure 1, be a kind of imaging system with X ray backward scattering and tomoscan provided by the invention, it comprises x-ray source 101, and detection scanning mechanism, whirligig 103 and driving mechanism 104 also comprise treatment circuit;
Described detection scanning mechanism is arranged at the front end of x-ray source 101, and it comprises collimating apparatus 201, backward scattering detector 202 and transmission detectors 203; Described backward scattering detector 202 is arranged at the front of described collimating apparatus 201, and described transmission detectors 203 is arranged at the opposite of described backward scattering detector 202;
As shown in Figure 2, described collimating apparatus 201 is a circular arc sheet, the middle part of these collimating apparatus 201 1 sides is provided with the straight-line groove 2011 of level, be used to collimate the covering of the fan of the X ray of transmission, be convenient to carry out the tomoscan imaging, an aperture 2012 is set on the opposite side of this collimating apparatus 201, drive collimating apparatus 201 when whirligig 103 is rotated at driving mechanism 104, X ray just forms flying spot by the aperture 2012 on the described collimating apparatus 201, is convenient to carry out back scattering imaging;
Described backward scattering detector 202 and described transmission detectors 203 are circular arc sheet;
As shown in Figure 3, described backward scattering detector 202 is provided with opening 2021, and straight horizontal wire casing 2011 and aperture 2012 on this opening and the described collimating apparatus 201 are in same plane;
Described whirligig 103 is arranged between described backward scattering detector 202 and the described transmission detectors 203, and this whirligig 103 can horizontally rotate, and also can raise and reduce, and puts detected object 55 on this whirligig 103;
Described driving mechanism 104 connects described collimating apparatus 201 and described whirligig 103, drives the motion of this collimating apparatus 201 and whirligig 103;
Described treatment circuit connects described backward scattering detector 202 and described transmission detectors 203, and the signal that backward scattering detector 202 and transmission detectors 203 receive is handled back input computing machine;
When detecting, object 55 that at first will be detected is placed on the whirligig 103, driving mechanism 104 driven in rotation devices 103 drive this object 55 and are rotated, and x-ray source 101 will be launched X ray, collimate through the straight-line groove 2011 on the collimating apparatus 201, penetrate object 55, received by the transmission detectors 203 of circular arc sheet, through after the processing circuit processes, signal is input to computing machine, generates the sectioning image of luggage; Whirligig 103 stops the rotation then, x-ray source 101 continues the emission X ray, driving mechanism 104 drives collimating apparatus 201 rotations, form flying spot, beat and on object 55, produce scattered x-ray, received by backward scattering detector 202, after the treated processing of circuit, be input to computing machine and convert a column of figure backscatter images that can in display, show to; Driving mechanism 104 driven in rotation devices 103 drive object 55 risings then, repeat said process, thereby obtain the 3-D transmission image of object 55 and complete backscatter images.
A kind of imaging system provided by the invention with X ray backward scattering and tomoscan, carry out backward scattering and tomoscan to being detected material, by processing to 3-D view and backscatter images, distinguish different materials, improve the ability of dangerous material such as judging explosive, detonator.
Claims (7)
1. the imaging system with X ray backward scattering and tomoscan is characterized in that, comprises x-ray source (101), detection scanning mechanism, whirligig (103) and driving mechanism (104);
Described detection scanning mechanism is arranged at the front end of x-ray source (101), and it comprises collimating apparatus (201), backward scattering detector (202) and transmission detectors (203);
The middle part of described collimating apparatus (201) one sides is provided with the straight-line groove (2011) of level, one aperture (2012) is set on the opposite side of this collimating apparatus (201), drive collimating apparatus (201) around whirligig (103) when being rotated at driving mechanism (104), X ray just forms flying spot by the aperture (2012) on the described collimating apparatus (201);
Described backward scattering detector (202) is arranged at the front of described collimating apparatus (201), and described transmission detectors (203) is arranged at the opposite of described backward scattering detector (202).
2. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1 is characterized in that, described collimating apparatus (201) is a circular arc sheet.
3. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1 is characterized in that, described backward scattering detector (202) and described transmission detectors (203) are circular arc sheet.
4. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1, it is characterized in that, described backward scattering detector (202) is provided with opening (2021), and straight horizontal wire casing (2011) and aperture (2012) on this opening and the described collimating apparatus (201) are in same plane.
5. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1, it is characterized in that, described whirligig (103) is arranged between described backward scattering detector (202) and the described transmission detectors (203), this whirligig (103) can horizontally rotate, also can raise and reduce, put detected object (55) on this whirligig (103).
6. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1, it is characterized in that, described driving mechanism (104) connects described collimating apparatus (201) and described whirligig (103), drives the motion of this collimating apparatus (201) and whirligig (103).
7. the imaging system with X ray backward scattering and tomoscan as claimed in claim 1, it is characterized in that, also comprise a treatment circuit, this treatment circuit connects described backward scattering detector (202) and described transmission detectors (203), and the signal that backward scattering detector (202) and transmission detectors (203) receive is handled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100294138A CN101113961A (en) | 2006-07-27 | 2006-07-27 | Image-forming system with X-ray backscattering and tomography scanning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100294138A CN101113961A (en) | 2006-07-27 | 2006-07-27 | Image-forming system with X-ray backscattering and tomography scanning |
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| CN101113961A true CN101113961A (en) | 2008-01-30 |
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| CNA2006100294138A Pending CN101113961A (en) | 2006-07-27 | 2006-07-27 | Image-forming system with X-ray backscattering and tomography scanning |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011079603A1 (en) * | 2009-12-30 | 2011-07-07 | 同方威视技术股份有限公司 | Scanning device using ray beam for backscattering imaging and method thereof |
| CN101655465B (en) * | 2009-08-28 | 2012-03-07 | 北京睿思厚德辐射信息科技开发有限公司 | Dotted line composite scanning backscattered and stereo transmission imaging device |
| CN102483965A (en) * | 2009-05-26 | 2012-05-30 | 拉皮斯坎系统股份有限公司 | X-ray Tomographic Inspection System For The Idendification Of Specific Target Items |
| CN102680501A (en) * | 2012-05-26 | 2012-09-19 | 中国人民解放军信息工程大学 | Collimation system for X-ray backscatter scanner |
| CN102707324A (en) * | 2012-05-21 | 2012-10-03 | 貊梁 | Backscatter and transmission combined safety detector of X rays |
| CN103903299A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Three-dimensional enhancement method and device for backscattered human body examination image |
| CN103892852A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Checking system and checking method |
| CN104181181A (en) * | 2013-05-24 | 2014-12-03 | 株式会社岛津制作所 | X-ray analyzing device |
| CN104458771A (en) * | 2013-09-23 | 2015-03-25 | 同方威视技术股份有限公司 | Linear track tomography device and perspective imaging device |
| CN109324069A (en) * | 2018-11-20 | 2019-02-12 | 中国原子能科学研究院 | A kind of scanner for X-ray transmission and back scattering integral imaging system |
| CN113960086A (en) * | 2021-09-18 | 2022-01-21 | 中国航天科工集团第二研究院 | Grid collimation imaging system and method for compensation type back scattering detector |
| CN113970567A (en) * | 2020-07-22 | 2022-01-25 | 同方威视技术股份有限公司 | Back scattering imaging device, control method and inspection system |
-
2006
- 2006-07-27 CN CNA2006100294138A patent/CN101113961A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483965A (en) * | 2009-05-26 | 2012-05-30 | 拉皮斯坎系统股份有限公司 | X-ray Tomographic Inspection System For The Idendification Of Specific Target Items |
| CN102483965B (en) * | 2009-05-26 | 2015-02-04 | 拉皮斯坎系统股份有限公司 | X-ray tomographic inspection system for the idendification of specific target items |
| CN101655465B (en) * | 2009-08-28 | 2012-03-07 | 北京睿思厚德辐射信息科技开发有限公司 | Dotted line composite scanning backscattered and stereo transmission imaging device |
| US9194827B2 (en) | 2009-12-30 | 2015-11-24 | Nuctech Company Limited | Scanning device using radiation beam for backscatter imaging and method thereof |
| WO2011079603A1 (en) * | 2009-12-30 | 2011-07-07 | 同方威视技术股份有限公司 | Scanning device using ray beam for backscattering imaging and method thereof |
| CN102116747B (en) * | 2009-12-30 | 2014-04-30 | 同方威视技术股份有限公司 | Scanning device for ray bundle for backscatter imaging-used ray bundle and method |
| CN102707324B (en) * | 2012-05-21 | 2015-01-21 | 貊梁 | Backscatter and transmission combined safety detector of X rays |
| CN102707324A (en) * | 2012-05-21 | 2012-10-03 | 貊梁 | Backscatter and transmission combined safety detector of X rays |
| CN102680501B (en) * | 2012-05-26 | 2013-11-20 | 中国人民解放军信息工程大学 | Collimation system for X-ray backscatter scanner |
| CN102680501A (en) * | 2012-05-26 | 2012-09-19 | 中国人民解放军信息工程大学 | Collimation system for X-ray backscatter scanner |
| CN103892852A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Checking system and checking method |
| CN103903299A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Three-dimensional enhancement method and device for backscattered human body examination image |
| CN103903299B (en) * | 2012-12-27 | 2018-05-22 | 同方威视技术股份有限公司 | The three-dimensional Enhancement Method and equipment of back scattering human body check image |
| CN103892852B (en) * | 2012-12-27 | 2016-03-09 | 同方威视技术股份有限公司 | Check system and inspection method |
| CN104181181B (en) * | 2013-05-24 | 2017-07-14 | 株式会社岛津制作所 | X-ray analysis equipment |
| CN104181181A (en) * | 2013-05-24 | 2014-12-03 | 株式会社岛津制作所 | X-ray analyzing device |
| CN104458771B (en) * | 2013-09-23 | 2017-01-18 | 同方威视技术股份有限公司 | Linear track tomography device and perspective imaging device |
| CN104458771A (en) * | 2013-09-23 | 2015-03-25 | 同方威视技术股份有限公司 | Linear track tomography device and perspective imaging device |
| CN109324069A (en) * | 2018-11-20 | 2019-02-12 | 中国原子能科学研究院 | A kind of scanner for X-ray transmission and back scattering integral imaging system |
| CN113970567A (en) * | 2020-07-22 | 2022-01-25 | 同方威视技术股份有限公司 | Back scattering imaging device, control method and inspection system |
| CN113960086A (en) * | 2021-09-18 | 2022-01-21 | 中国航天科工集团第二研究院 | Grid collimation imaging system and method for compensation type back scattering detector |
| CN113960086B (en) * | 2021-09-18 | 2024-01-02 | 中国航天科工集团第二研究院 | Compensation type back scattering detector grid collimation imaging system and method |
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Open date: 20080130 |