CN102854539B - A kind of external hanging type mobile checking system based on back scattering imaging - Google Patents
A kind of external hanging type mobile checking system based on back scattering imaging Download PDFInfo
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- CN102854539B CN102854539B CN201110178364.5A CN201110178364A CN102854539B CN 102854539 B CN102854539 B CN 102854539B CN 201110178364 A CN201110178364 A CN 201110178364A CN 102854539 B CN102854539 B CN 102854539B
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Abstract
The invention discloses a kind of external hanging type mobile checking system based on back scattering imaging, comprising: means of transport; Penetrating radiation source, described penetrating radiation source is arranged in described means of transport; Processor, for carrying out imaging; Scattering detector, described scattering detector is electrically connected with described processor, and described scattering detector is for absorbing from the ray signal of testee scattering, and described ray signal is sent to described processor processes; Spatial modulator, for controlling the ray profile in described penetrating radiation source; Described scattering detector is positioned at the outside of described means of transport. With respect to existing portable x ray backscatter inspection car, the present invention has changed the position of scattering detector, scattering detector is become in being built in means of transport to the outside that is arranged on means of transport, in the time scattering detector being installed or scattering detector is keeped in repair, be convenient to workman's operation.
Description
Technical field
The present invention relates to radiant image security detection equipment technical field, relate in particular to one and become based on back scatteringThe external hanging type mobile checking system of picture.
Background technology
When incident electron contacts with sample, wherein a part hardly off-energy ground at sample surfaces by elasticityScattering is returned, and this part electronics is called as backscattered electron (BackscatteredElectron). Back scatteringThe yield of electronics increases with the increase of the atomic number of sample, and the element that therefore imaging can response sample dividesCloth, and the difference subregional profile that coordinates.
It is a kind of for checking the inspection of object that American Science & Eng Inc. provides in patent ZL03801115.8Look into system, for example, tested personnel, can be also goods or the vehicle of any type, and check system has envelopeThe means of transport closing, for example van or other vehicle taking sealing car body as feature, and, this systemThere is the whole penetrating radiation source being contained in means of transport car body, for generation of penetrating radiation, also there is skyBetween modulator, for make penetrating radiation form wire harness, with according in time change scanning profile irradiate this thingBody, detector module also completes and is contained in the main body of means of transport, is set to for collecting by testedThe scattered signal that object scattering is returned, meanwhile, relative motion sensor is according to means of transport and inspected objectRelative displacement and produce relative motion signal, last, this system has controller, for guaranteeing scattering spokeThe specified characteristic of penetrating. In addition, can provide image composer, for partly according to scattered signal and phaseTo motor message and by the image of signal formation object contents.
Figure 1 shows that the structural representation of above-mentioned portable x ray backscatter inspection car, mobile inspection trolleyThe straight-line travelling that remains a constant speed, the wire harness that x-ray source 30 is launched forms pencil beam through flywheel 34, drop on bySurvey on object, form flying spot, the scattering detector 100 that is positioned at means of transport is collected arbitrary moment flying spotX ray back scattering ray, treated and obtain the material information of whole inspected object.
The detector module of above-mentioned portable x ray backscatter inspection car is arranged in means of transport, in peaceWhen filling this module or this module being keeped in repair, this built-in structure arranges to operation makes troubles.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of external hanging type mobile inspection based on back scattering imagingSystem, the position that this system arranges by changing detector module, changes into affixed by being built in means of transportIn means of transport outside, solve the problem to detector module installation or inconvenient maintenance in prior art.
In order to achieve the above object, the present invention proposes a kind of external hanging type mobile inspection based on back scattering imagingSystem, comprising: means of transport; Penetrating radiation source, described penetrating radiation source is arranged in described means of transport;Processor, for carrying out imaging; Scattering detector, described scattering detector and described processor are electrically connectedConnect, described scattering detector is used for absorbing from the ray signal of testee scattering, and by described ray signalBeing sent to described processor processes; Spatial modulator, for controlling the ray wheel in described penetrating radiation sourceWide; Described scattering detector is positioned at the outside of described means of transport.
The above-mentioned external hanging type mobile checking system based on back scattering imaging, described plug-in based on back scattering imagingFormula mobile checking system also comprises a transmission detectors, and described transmission detectors is electrically connected with described processor,Described transmission detectors is for absorbing the ray not stopped by testee, and forms described in the signal of telecommunication is sent toProcessor is processed.
The above-mentioned external hanging type mobile checking system based on back scattering imaging, passes through described in described spatial modulator is positioned atWear between radiation source and described testee, described spatial modulator comprises that a collimater, is positioned at described standardFlywheel between straight device and described penetrating radiation source.
The above-mentioned external hanging type mobile checking system based on back scattering imaging, described penetrating radiation source is x radiographic source.
The above-mentioned external hanging type mobile checking system based on back scattering imaging, described plug-in based on back scattering imagingFormula mobile checking system also comprises a display, and described display is connected with described processor.
With respect to existing portable x ray backscatter inspection car, the present invention has changed scattering detectorPosition becomes scattering detector the outside that is arranged on means of transport in being built in means of transport, works as installationScattering detector or when scattering detector is keeped in repair, is convenient to workman's operation.
Brief description of the drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the present inventionWill become apparent and easily understand.
Fig. 1 is the portable x ray of existing one backscatter inspection car schematic diagram;
Fig. 2 is the top view that the present invention is based on the external hanging type mobile checking system of back scattering imaging;
Fig. 3 is the schematic diagram of one embodiment of the present invention;
Fig. 4 is the schematic diagram of another preferred embodiment of the present invention.
Reference numeral explanation:
1-testee, 2-scattering detector, 3-collimater,
4-means of transport, 5-flywheel, 6-penetrating radiation source,
7-transmission detectors.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Please refer to Fig. 2, Fig. 2 is the overlooking of external hanging type mobile checking system that the present invention is based on back scattering imagingFigure. Based on an external hanging type mobile checking system for back scattering imaging, comprising: means of transport 4, described fortuneDefeated instrument 4 can be totally enclosed, can be also semi-enclosed; Penetrating radiation source 6, described penetrating radiationSource 6 is arranged in described means of transport 4, and preferred, penetrating radiation source is x radiographic source; Processor (figureIn depending on not going out), for carrying out imaging; Scattering detector 2, described scattering detector 2 and described processingDevice electrical connection, described scattering detector 2 is for absorbing from the ray signal of testee 1 scattering, and by instituteStating ray signal is sent to described processor and processes; Spatial modulator, for controlling described penetrating radiationThe ray profile in source; Described scattering detector 2 is positioned at the outside of described means of transport.
Spatial modulator between described penetrating radiation source 6 and described testee 1, described spatial modulationDevice comprises the flywheel 5 of a collimater 3, between described collimater 3 and described penetrating radiation source 6.
Further, the external hanging type mobile checking system based on back scattering imaging also comprises a transmission detectors 7,Described transmission detectors 7 is electrically connected with described processor, and described transmission detectors 7 is for absorbing not by testedThe ray that object 1 stops, and form the signal of telecommunication and be sent to described processor and process.
Further, the external hanging type mobile checking system based on back scattering imaging also comprises a display, instituteStating display is connected with described processor.
Describe the external hanging type mobile inspection system that the present invention is based on back scattering imaging in detail below by two embodimentSystem.
Embodiment mono-
In this embodiment, the external hanging type mobile checking system based on back scattering imaging is only according to scattering detectorSignal carries out imaging. Please refer to Fig. 3, Fig. 3 is the schematic diagram of one embodiment of the present invention. Based onThe external hanging type mobile checking system of back scattering imaging comprises:
Means of transport 4, this means of transport is half totally enclosed, the means of transport 4 in the present embodiment is office notBeing limited to the car of certain type, can be the vehicle of truck, motor van or other types, means of transport 4 useIn placing penetrating radiation source 6 and other devices.
Penetrating radiation source 6, is positioned at described means of transport 4, penetrating radiation source 6 be used to form ray,Preferably, described penetrating radiation source 6 is x radiographic source, and for example, penetrating radiation source 6 can be an X rayManage, select the radiographic source of which kind of type, depend on the required energy in penetrating radiation source in practical application.
Scattering detector 2, is positioned at the outside of described means of transport 4, and by scatter sounding, it 2 is placed in haulagmanThe outside of tool 4 is convenient to install and later maintenance early stage, and scattering detector 2 is loose for absorbing from testeePenetrate the signal of the ray coming, collected signal is passed to processor, integrated treatment.
Spatial modulator, between described penetrating radiation source 6 and described testee 1, spatial modulatorFor controlling the emitted ray in penetrating radiation source 6, make it form a kind of scan wheel that can change in timeWide. Preferably, spatial modulator comprises a collimater 3 and a flywheel 5, and flywheel 5 is positioned at described collimater3 and described penetrating radiation source 6 between. Flywheel 5 is made up of the material that can stop ray, as can be by dilutionUranium or tungsten etc. are made. On flywheel 5, there is curved surface groove, when radiation exposure is to flywheel 5, only have through curved surfaceThe ray of groove can pass through flywheel 5, and all the other rays all stop by flywheel 5, and collimater 3 is also by passableThe material that stops ray is made, and collimater is provided with finedraw, when radiation exposure is on collimater 3, only have throughThe ray of crossing finedraw can pass through collimater 3, and all the other rays are all collimated device 3 to be stopped.
Processor (in figure depending on not going out), is connected with described scattering detector 2, accepts scattering detector 2 and transmitsThe signal coming, analyzes checking matter inner material.
Display (not shown), described display is connected with described processor, shows for imaging.
Embodiment bis-
In this embodiment, the comprehensive scattering detector of the external hanging type mobile checking system based on back scattering imaging andThe signal of transmission detectors carries out imaging. Please refer to Fig. 4, Fig. 4 is the schematic diagram of the present embodiment. BaseExternal hanging type mobile checking system in back scattering imaging comprises:
Means of transport 4, this means of transport 4 is totally enclosed, the means of transport 4 in the present embodiment is office notBeing limited to the car of certain type, can be the vehicle of truck, motor van or other types, means of transport 4 useIn placing penetrating radiation source 6 and other devices.
Penetrating radiation source 6, is positioned at described means of transport 4, penetrating radiation source 6 be used to form ray,Preferably, described penetrating radiation source 6 is x radiographic source, and for example, penetrating radiation source 6 can be an X rayManage, select the radiographic source of which kind of type, depend on the required energy in penetrating radiation source in practical application.
Scattering detector 2, is positioned at the outside of described means of transport 4, and by scatter sounding, it 2 is placed in haulagmanThe outside of tool 4 is convenient to install and later maintenance early stage, and scattering detector 2 is loose for absorbing from testeePenetrate the signal of the ray coming, collected signal is passed to processor, integrated treatment.
Spatial modulator, between described penetrating radiation source 6 and described testee 1, spatial modulatorFor controlling the emitted ray in penetrating radiation source 6, make it form a kind of scan wheel that can change in timeWide. Preferably, spatial modulator comprises a collimater 3 and a flywheel 5, and flywheel 5 is positioned at described collimater3 and described penetrating radiation source 6 between. Flywheel 5 is made up of the material that can stop ray, as can be by dilutionUranium or tungsten etc. are made. On flywheel 5, there is curved surface groove, when radiation exposure is to flywheel 5, only have through curved surfaceThe ray of groove can pass through flywheel 5, and all the other rays all stop by flywheel 5, and collimater 3 is also by passableThe material that stops ray is made, and collimater is provided with finedraw, when radiation exposure is on collimater 3, only have throughThe ray of crossing finedraw can pass through collimater 3, and all the other rays are all collimated device 3 to be stopped.
Transmission detectors 7, described transmission detectors 7 lays respectively at testee 1 with described scattering detector 2Adjacent or relative both sides, transmission detectors 7, for absorbing the ray not stopped by article, forms signal and passesGive processor, integrated treatment. Projection detector 7 can be arranged on a crane span structure, as shown in Figure 4.
Processor (not shown), is all connected with described scattering detector 2, described transmission detectors 7,Accept the signal that scattering detector 2 and transmission detectors 7 transmission come, analyze checking matter inner material.
Display (not shown), described display is connected with described processor, shows for imaging.
It should be noted that above content is made for the present invention further in detail in conjunction with concrete embodimentDescribe in detail brightly, can not assert that the specific embodiment of the present invention only limits to this, under above-mentioned guidance of the present invention,Those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improvementOr distortion drops in protection scope of the present invention.
Claims (4)
1. the external hanging type mobile checking system based on back scattering imaging, comprising:
Vehicle;
Penetrating radiation source, described penetrating radiation source is arranged in described vehicle;
Processor, for carrying out imaging;
Scattering detector, described scattering detector is electrically connected with described processor, and described scattering detector is used forAbsorb the ray signal from testee scattering, and described ray signal is sent to described processor placeReason;
Spatial modulator, for controlling the ray profile in described penetrating radiation source;
It is characterized in that:
Described scattering detector is positioned at the outside of described vehicle and is connected with described vehicle, be convenient to early stage install withAnd later maintenance;
Described spatial modulator between described penetrating radiation source and described testee, described spatial modulationDevice comprises the flywheel of a collimater, between described collimater and described penetrating radiation source;
Flywheel is made up of the material that can stop ray, has curved surface groove on flywheel, when radiation exposure is to flywheel,Only have through the ray of curved surface groove and can pass through flywheel, all the other rays are all stopped by flywheel;
Collimater is to be also made up of the material that can stop ray, and collimater is provided with finedraw, works as radiation exposureOn collimater, only have through the ray of finedraw and can pass through collimater, all the other rays are all collimated device and hinderGear.
2. the external hanging type mobile checking system based on back scattering imaging according to claim 1, its featureBe:
The described external hanging type mobile checking system based on back scattering imaging also comprises a transmission detectors, describedPenetrate detector and be electrically connected with described processor, described transmission detectors is not stopped by testee for absorbingRay, and form the signal of telecommunication and be sent to described processor and process.
3. the external hanging type mobile checking system based on back scattering imaging according to claim 1, its featureBe:
Described penetrating radiation source is x radiographic source.
4. the external hanging type mobile checking system based on back scattering imaging according to claim 1, its featureBe:
The described external hanging type mobile checking system based on back scattering imaging also comprises a display, described displayBe connected with described processor.
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| CN201110178364.5A CN102854539B (en) | 2011-06-29 | 2011-06-29 | A kind of external hanging type mobile checking system based on back scattering imaging |
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| CN201110178364.5A CN102854539B (en) | 2011-06-29 | 2011-06-29 | A kind of external hanging type mobile checking system based on back scattering imaging |
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| CN103808744A (en) * | 2014-03-12 | 2014-05-21 | 北京曼德克环境科技有限公司 | Green channel vehicle detector for inversely scattering X-ray |
| CN106526688A (en) * | 2016-12-28 | 2017-03-22 | 同方威视技术股份有限公司 | Back scattering inspection vehicle |
| CN106707354A (en) * | 2017-01-04 | 2017-05-24 | 重庆日联科技有限公司 | Passenger and automobile split X-ray detection system |
| CN114137622A (en) * | 2021-12-30 | 2022-03-04 | 同方威视科技（北京）有限公司 | Mobile radiation inspection apparatus and mobile radiation inspection system |
| CN115291287A (en) * | 2022-09-29 | 2022-11-04 | 北京紫方启研科技有限公司 | Vehicle-mounted security inspection system |
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