CN2927043Y - Apparatus for inspecting explosive by back scattering technology - Google Patents
Apparatus for inspecting explosive by back scattering technology Download PDFInfo
- Publication number
- CN2927043Y CN2927043Y CN 200620044209 CN200620044209U CN2927043Y CN 2927043 Y CN2927043 Y CN 2927043Y CN 200620044209 CN200620044209 CN 200620044209 CN 200620044209 U CN200620044209 U CN 200620044209U CN 2927043 Y CN2927043 Y CN 2927043Y
- Authority
- CN
- China
- Prior art keywords
- wheel
- collimating apparatus
- ray
- backward scattering
- explosive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The utility model discloses an explosive detection device using backscattering technique, which comprises a cutting wheel collimator, and an X-ray source arranged in the direction of the shaft of the cutting wheel collimator. A rotary driving assembly is arranged under the cutting wheel collimator, and the device also comprises a link-connected backscattering detector group and a transmission detector. By using the new flying spot formative assembly, the utility model has the advantages of improving the backscattering image resolution, and enhancing the ability to judge dangerous goods such as explosives and detonators.
Description
Technical field
The utility model relates to a kind of X ray safety inspection equipment, and particularly a kind of backscattering technique that utilizes carries out the device that explosive detects.
Background technology
Most existing X ray safety check system is mainly still used x-ray source, produces the ray of covering of the fan, receives formation transmission projection image again with the detector linear array.Like this, various materials overlap, and certainly will influence 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.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.Special needs to be pointed out is: the atomic number of material is low more, and its backward scattering is strong more.And the atomic number of explosive, detonator all is very low, and this just provides means for we effectively differentiate explosive, detonator.Transmission X radial imaging technology is carried out high resolving power and the forthright monitoring of high-penetration to high density material, and the back scattering imaging technology then can be carried out fast detecting to organic material.
The ray that mostly is the covering of the fan or the conical surface that conventional x-ray source produces, as shown in Figure 1, will produce the multiple tracks reflection ray when ray surface is scanned up to object, interference search gear is to the reception of signal, and can't differentiate the concrete source of institute's acknowledge(ment) signal, to such an extent as to can not produce backscatter images.
The utility model content
The purpose of this utility model is to provide a kind of backscattering technique that utilizes to carry out the device that explosive detects, and adopts new flying spot to form mechanism, can improve the resolution that is scattered image, improves the ability of dangerous material such as judging explosive, detonator.
For achieving the above object, a kind of backscattering technique that utilizes that the utility model provides carries out the device that explosive detects, and it comprises cuts the wheel collimating apparatus, is arranged at the x-ray source of cutting wheel collimating apparatus axial centre position, cuts wheel collimating apparatus below and also is provided with driving mechanism;
The described wheel collimating apparatus of cutting radially evenly is provided with some collimating apertures, in fixing X ray transmitting boundary, X ray is collimated into a hot spot that diameter is very little, rotary drive mechanism drives to be cut the wheel collimating apparatus and rotates around x-ray source, make that hot spot goes round and begins again from bottom to top or scanning from the top down.
Described rotary drive mechanism comprises fixing support rack and motor; Described fixing support rack supports the described wheel collimating apparatus of cutting;
Described a kind of backscattering technique that utilizes carries out the device that explosive detects, and also comprises backward scattering detector set and transmission detectors;
Described backward scattering detector set comprises some backward scattering detectors, and this backward scattering detector set is arranged on cuts between wheel collimating apparatus and the object;
Described transmission detectors is arranged on the opposite side of the object relative with described backward scattering detector set, with the backward scattering detector set, cut the wheel collimating apparatus in a straight line.
The rotary drive mechanism driving is cut the wheel collimating apparatus and is rotated vertically, x-ray source is launched the fan ray face, X ray by cut wheel on the collimating apparatus collimating aperture and the opening part of backward scattering detector set form beam, scan object to be detected from top to bottom, after an angle is finished, next collimating aperture enters ray surface, forms continuous flying spot thus and realizes flying-spot scanner.
Owing to be point-like beam irradiating object, reflected ray becomes in the unit interval unique, so can calculate the time series of flying spot according to the fixed rate of cutting the wheel rotation, thereby particular location on the corresponding object of gained reflected ray institute as can be known, behind complete object of scanning wire harness scanning, ray is formed reflected ray by object reflection back, received by the backward scattering detector set, detector is according to the flying-spot scanner clock signal of noting, form scan time series object top layer situation digital signal, obtain checking matter body surface tomographic image by Computer Processing and feedback.Ray forms projection radiation after passing object, is accepted by transmission detectors, obtains the interior of articles image by Computer Processing and feedback.
A kind of backscattering technique that utilizes that the utility model provides carries out the device that explosive detects, and adopts new flying spot to form mechanism, improves the resolution of backscatter images, improves the ability of dangerous material such as judging explosive, detonator.
Description of drawings
Fig. 1 is a radiation exposure schematic diagram in the background technology;
Fig. 2 is not intended to for a kind of structure of utilizing backscattering technique to carry out the device of explosive detection provided by the utility model;
Fig. 3 position schematic diagram of cutting the wheel collimating apparatus of the present utility model.
Embodiment
Followingly specify a kind of better embodiment of the present utility model according to Fig. 2, Fig. 3:
As shown in Figure 2, a kind of backscattering technique that utilizes that provides for the utility model carries out the device that explosive detects, and it comprises cuts wheel collimating apparatus 1, is arranged at the x-ray source 2 of cutting wheel collimating apparatus 1 axial centre position, cuts wheel collimating apparatus below and also is provided with driving mechanism 3;
The described wheel collimating apparatus 1 of cutting radially evenly is provided with some collimating apertures 101, in fixing X ray transmitting boundary, X ray is collimated into a hot spot that diameter is very little, rotary drive mechanism 3 drives cuts wheel collimating apparatus 1 around x-ray source 2 rotations, make that hot spot goes round and begins again from bottom to top or scanning from the top down.
Described rotary drive mechanism 3 comprises fixing support rack 301 and motor 302; Described fixing support rack 301 supports the described wheel collimating apparatus 1 of cutting;
Described a kind of backscattering technique that utilizes carries out the device that explosive detects, and also comprises backward scattering detector set 4 and transmission detectors 5 that circuit connects;
Described backward scattering detector set 4 comprises some backward scattering detectors, and this backward scattering detector set 4 is arranged on cuts between wheel collimating apparatus 1 and the object 6;
Described transmission detectors 5 is arranged on the opposite side of the object relative with described backward scattering detector set 4, with backward scattering detector set 4, cut wheel collimating apparatus 1 in a straight line.
As shown in Figure 3, rotary drive mechanism 3 drives are cut wheel collimating apparatus 1 and are rotated vertically, x-ray source 2 is launched 60 ° of fan ray faces, X ray forms form of a stroke or a combination of strokes beam 7 by the opening part of collimating aperture 101 and backward scattering detector set, scan object to be detected 6 from top to bottom, after an angle scanning was finished, next collimating aperture 101 entered ray surface, formed continuous flying spot thus and realized flying-spot scanner.
Owing to be point-like beam irradiating object, reflected ray becomes in the unit interval unique, so can calculate the time series of flying spot according to the fixed rate of cutting wheel rotation 1, thereby particular location on the corresponding object 6 of gained reflected ray institute as can be known, behind complete object of scanning wire harness 7 scannings, ray is formed reflected ray by object reflection back, received by the backward scattering detector set, detector is according to the flying-spot scanner clock signal of noting, form scan time series object top layer situation digital signal, obtain checking matter body surface tomographic image by Computer Processing and feedback.Ray forms projection radiation after passing object, is accepted by transmission detectors, obtains the interior of articles image by Computer Processing and feedback.
A kind of backscattering technique that utilizes that the utility model provides carries out the device that explosive detects, and adopts new flying spot to form mechanism, improves the resolution of backscatter images, improves the ability of dangerous material such as judging explosive, detonator.
Claims (3)
1. one kind is utilized backscattering technique to carry out the device that explosive detects, and it is characterized in that, comprises and cuts wheel collimating apparatus (1), is installed on the x-ray source (2) of cutting wheel collimating apparatus (1) axial location, cuts wheel collimating apparatus (1) below and is provided with rotary drive mechanism (3);
Described a kind of backscattering technique that utilizes carries out the device that explosive detects, and also comprises backward scattering detector set (4) and transmission detectors (5) that circuit connects;
The described wheel collimating apparatus (1) of cutting radially evenly is provided with some collimating apertures (101), in fixing X ray transmitting boundary, X ray is collimated into a hot spot that diameter is very little, rotary drive mechanism (3) drives cuts wheel collimating apparatus (1) around x-ray source (2) rotation, make that hot spot goes round and begins again from bottom to top or scanning from the top down.
2. a kind of backscattering technique that utilizes as claimed in claim 1 carries out the device that explosive detects, it is characterized in that, described backward scattering detector set (4) comprises some backward scattering detectors, and this backward scattering detector set is arranged on cuts between wheel collimating apparatus (1) and the object (6).
3. a kind of backscattering technique that utilizes as claimed in claim 1 carries out the device that explosive detects, and it is characterized in that described transmission detectors (5) is arranged on object (6) outside, with backward scattering detector set (4), cut wheel collimating apparatus (1) in a straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044209 CN2927043Y (en) | 2006-07-25 | 2006-07-25 | Apparatus for inspecting explosive by back scattering technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620044209 CN2927043Y (en) | 2006-07-25 | 2006-07-25 | Apparatus for inspecting explosive by back scattering technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2927043Y true CN2927043Y (en) | 2007-07-25 |
Family
ID=38281296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620044209 Expired - Lifetime CN2927043Y (en) | 2006-07-25 | 2006-07-25 | Apparatus for inspecting explosive by back scattering technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2927043Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113960B (en) * | 2006-07-25 | 2010-07-21 | 上海英迈吉东影图像设备有限公司 | Device for testing explosive with backscatter technology |
| 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 |
| CN107991332A (en) * | 2017-12-27 | 2018-05-04 | 吴俊逸 | A kind of method of barium content in rapid semi-quantitative detection blind sample of fireworks and firecrackers pyrotechnic composition |
-
2006
- 2006-07-25 CN CN 200620044209 patent/CN2927043Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113960B (en) * | 2006-07-25 | 2010-07-21 | 上海英迈吉东影图像设备有限公司 | Device for testing explosive with backscatter technology |
| 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 |
| 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 |
| CN107991332A (en) * | 2017-12-27 | 2018-05-04 | 吴俊逸 | A kind of method of barium content in rapid semi-quantitative detection blind sample of fireworks and firecrackers pyrotechnic composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101113960B (en) | Device for testing explosive with backscatter technology | |
| CN1779444B (en) | Safety CT inspector for liquid by ray resource | |
| US7492862B2 (en) | Computed tomography cargo inspection system and method | |
| JP4689663B2 (en) | Eliminate crosstalk in portal backscatter analyzers with multiple sources by ensuring that only one source emits radiation at a time | |
| CN100384375C (en) | Explosion material tester using double-energy scanning information and mehtod | |
| CN201173903Y (en) | Jumping point scanning radiation image forming apparatus | |
| EP2273257B1 (en) | Imaging system using a straight-line trajectory scan and method thereof | |
| CN101113961A (en) | Image-forming system with X-ray backscattering and tomography scanning | |
| US8767912B1 (en) | System for inspection and imaging of insulated pipes and vessels using backscattered radiation and X-ray fluorescence | |
| CN103675931B (en) | CT system and the detection device for CT system | |
| US7539283B2 (en) | Combined computed tomography and nuclear resonance fluorescence cargo inspection system and method | |
| AU2006200561A1 (en) | Method and Equipment for Discriminating Materials by Employing Fast Neutron and Continuous Spectral X-ray | |
| CN200941097Y (en) | Imaging apparatus having X-ray back scatter and fault scan | |
| GB2439413A (en) | Cargo Security Inspection Method Based On Spiral Scanning | |
| US9784697B2 (en) | Radiation imaging device capable of matter-element information acquisition and image based selection | |
| CN109691238B (en) | System and method for improving penetration of a radiological imaging scanner | |
| CN202041481U (en) | X-ray computer tomography (CT) channel-type security check machine | |
| CN2872353Y (en) | Safety determiner by back scattering technology | |
| CN108240997B (en) | Inspection apparatus and method of inspecting container | |
| CN105403926A (en) | Walking track base backscattering imager | |
| CN202929217U (en) | Backscattering human body security check system capable of monitoring radioactive substances carried by human body | |
| CN105807328A (en) | Detecting system and method based on back scattering imaging | |
| CN2927043Y (en) | Apparatus for inspecting explosive by back scattering technology | |
| CN101592622A (en) | Multi-view X ray luggage explosive substance automatic detection device with real dual-energy | |
| CN103630947A (en) | Backscattering human body security check system capable of monitoring radioactive substances and scanning method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070725 |
|
| EXPY | Termination of patent right or utility model |