CN102854539A - External mounting movable examination system based on back scattering imaging - Google Patents
External mounting movable examination system based on back scattering imaging Download PDFInfo
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- CN102854539A CN102854539A CN2011101783645A CN201110178364A CN102854539A CN 102854539 A CN102854539 A CN 102854539A CN 2011101783645 A CN2011101783645 A CN 2011101783645A CN 201110178364 A CN201110178364 A CN 201110178364A CN 102854539 A CN102854539 A CN 102854539A
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Abstract
The invention discloses an external mounting movable examination system based on back scattering imaging. The external mounting movable examination system comprises a transport tool, a penetrating radiation source, a processor, a scattering detector and a spatial modulator, wherein the penetrating radiation source is arranged in the transport tool; the processor is used for performing imaging processing; the scattering detector is electrically connected with the processor and is used for absorbing a ray signal scattered from a tested object and transmitting the ray signal to the processor for processing; the spatial modulator is used for controlling a ray outline of the penetrating radiation source; and the penetrating radiation source is positioned on the outer side of the transport tool. Compared with the conventional movable x-ray reverse scattered examination vehicle, the external mounting movable examination system has the advantages that the position of the scattering detector is changed, and the scattering detector is arranged on the outer side of the transport tool instead of being arranged in the transport tool; and moreover, when the scattering detector is mounted or maintained, manual operation is convenient.
Description
Technical field
The present invention relates to radiant image security detection equipment technical field, relate in particular to a kind of external hanging type mobile checking system based on back scattering imaging.
Background technology
When incident electron contacted with sample, wherein a part was returned by elastic scattering at sample surfaces on off-energy ground hardly, and this part electronics is called as backscattered electron (Backscattered Electron).The yield of backscattered electron increases with the increase of the atomic number of sample, so the element that imaging can response sample distributes, and the difference subregional profile that coordinates.
American Science ﹠ Eng Inc. provides a kind of check system for checking object in patent ZL03801115.8, for example, tested personnel, also can be goods or the vehicle of any type, check system has the means of transport of sealing, for example to seal car body as van or other vehicle of feature, and, this system has the whole penetrating radiation source that is contained in the means of transport car body, for generation of penetrating radiation, also has spatial modulator, be used for making penetrating radiation to form wire harness, to shine this object according to the scanning profile that changes in time, detector module is contained in the main body of means of transport with also finishing, be set to the scattered signal of being returned by the testee scattering for collecting, simultaneously, relative motion sensor produces the relative motion signal according to the relative displacement of means of transport and inspected object, and is last, this system has controller, is used for guaranteeing the specified characteristic of scattered radiation.In addition, can provide image composer, to be used for partly according to scattered signal and relative motion signal with the image of signal formation object contents.
Figure 1 shows that the structural representation of above-mentioned portable x ray backscatter inspection car, the mobile inspection trolley straight-line travelling that remains a constant speed, the wire harness of x-ray source 30 emissions forms pencil beam through flywheel 34, drop on the testee, form flying spot, the scattering detector 100 that is positioned at means of transport is collected the X ray backward scattering ray of arbitrary moment flying spot, and is 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 the means of transport, and when keeping in repair in this module of installation or to this module, this built-in structure arranges to operation makes troubles.
Summary of the invention
Technical matters to be solved by this invention provides a kind of external hanging type mobile checking system based on back scattering imaging, the position that this system arranges by changing detector module, change into and be fixed in the means of transport outside by being built in means of transport, solve in the prior art and detector module to be installed or the problem of inconvenient maintenance.
In order to achieve the above object, the present invention proposes a kind of external hanging type mobile checking system based on back scattering imaging, comprising: means of transport; The penetrating radiation source, described penetrating radiation source is arranged in the described means of transport; Processor is used for carrying out imaging processing; Scattering detector, described scattering detector is electrically connected with described processor, and described scattering detector be used for to absorb the ray signal from the testee scattering, and described ray signal is sent to described processor processes; Spatial modulator is for the ray profile of controlling described penetrating radiation source; Described scattering detector is positioned at the outside of described means of transport.
Above-mentioned external hanging type mobile checking system based on back scattering imaging, described external hanging type mobile checking system based on back scattering imaging also comprises a transmission detectors, described transmission detectors is electrically connected with described processor, described transmission detectors be used for to absorb the ray that is not stopped by testee, and forms electric signal and be sent to described processor and process.
Above-mentioned external hanging type mobile checking system based on back scattering imaging, described spatial modulator is between described penetrating radiation source and described testee, and described spatial modulator comprises the flywheel of a collimating apparatus, between described collimating apparatus and described penetrating radiation source.
Above-mentioned external hanging type mobile checking system based on back scattering imaging, described penetrating radiation source is the x radiographic source.
Above-mentioned external hanging type mobile checking system based on back scattering imaging, described external hanging type mobile checking system based on back scattering imaging also comprises a display, described display links to each other with described processor.
With respect to existing portable x ray backscatter inspection car, the present invention has changed the position of scattering detector, scattering detector is become the outside that is arranged on means of transport by being built in the means of transport, when keeping in repair when the installation scattering detector or to scattering detector, be convenient to workman's operation.
Description of 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 invention will become apparent and understand easily.
Fig. 1 is existing a kind of portable x ray backscatter inspection car synoptic diagram;
Fig. 2 is the vertical view that the present invention is based on the external hanging type mobile checking system of back scattering imaging;
Fig. 3 is the synoptic diagram of one embodiment of the present invention;
Fig. 4 is the synoptic diagram of another preferred embodiment of the present invention.
The reference numeral explanation:
The 1-testee, the 2-scattering detector, the 3-collimating apparatus,
The 4-means of transport, the 5-flywheel, 6-penetrating radiation source,
The 7-transmission detectors.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Please refer to Fig. 2, Fig. 2 is the vertical view that the present invention is based on the external hanging type mobile checking system of back scattering imaging.A kind of external hanging type mobile checking system based on back scattering imaging comprises: means of transport 4, and described means of transport 4 can be totally enclosed, also can be semi-enclosed; Penetrating radiation source 6, described penetrating radiation source 6 are arranged in the described means of transport 4, and preferred, the penetrating radiation source is the x radiographic source; Processor (not looking out among the figure) is used for carrying out imaging processing; Scattering detector 2, described scattering detector 2 is electrically connected with described processor, and described scattering detector 2 is used for absorbing the ray signal from testee 1 scattering, and described ray signal is sent to described processor processes; Spatial modulator is for the ray profile of controlling described penetrating radiation source; Described scattering detector 2 is positioned at the outside of described means of transport.
Spatial modulator is between described penetrating radiation source 6 and described testee 1, and described spatial modulator comprises the flywheel 5 of a collimating apparatus 3, between described collimating apparatus 3 and described penetrating radiation source 6.
Further, 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, described transmission detectors 7 is used for absorbing the ray that is not stopped by testee 1, and forms electric signal and be sent to described processor and process.
Further, also comprise a display based on the external hanging type mobile checking system of back scattering imaging, described display links to each other with described processor.
Describe the external hanging type mobile checking system that the present invention is based on back scattering imaging in detail below by two embodiment.
Embodiment one
Among this embodiment, only carry out imaging processing according to the signal of scattering detector based on the external hanging type mobile checking system of back scattering imaging.Please refer to Fig. 3, Fig. 3 is the synoptic diagram of one embodiment of the present invention.External hanging type mobile checking system based on back scattering imaging comprises:
Means of transport 4, this means of transport are partly totally enclosed, and the means of transport 4 in the present embodiment is not limited to certain type car, can be the vehicle of truck, motor van or other types, and means of transport 4 is used for placing penetrating radiation source 6 and other devices.
Penetrating radiation source 6, be positioned at described means of transport 4, penetrating radiation source 6 be used to form ray, preferably, described penetrating radiation source 6 is the x radiographic source, and for example, penetrating radiation source 6 can be an X-ray tube, select the radiographic source of which kind of type, depend on the required energy in penetrating radiation source in the practical application.
Scattering detector 2, be positioned at the outside of described means of transport 4, it 2 places the outside of means of transport 4 to be convenient to install and later maintenance early stage with scatter sounding, and scattering detector 2 is used for absorbing the signal of the ray that comes from the testee scattering, collected signal is passed to processor, overall treatment.
Spatial modulator, between described penetrating radiation source 6 and described testee 1, spatial modulator is used for the emitted ray in control penetrating radiation source 6, makes it form a kind of scanning profile that can change in time.Preferably, spatial modulator comprises a collimating apparatus 3 and a flywheel 5, and flywheel 5 is between described collimating apparatus 3 and described penetrating radiation source 6.Flywheel 5 is made by the material that can stop ray, as being made by depleted nuclear fuel or tungsten etc.The curved surface groove is arranged on the flywheel 5, when radiation exposure to flywheel 5, only have the ray through the curved surface groove can pass through flywheel 5, all the other rays are all stopped by flywheel 5, collimating apparatus 3 also is to be made by the material that can stop ray, and collimating apparatus is provided with finedraw, when radiation exposure on collimating apparatus 3, only have the ray through finedraw can pass through collimating apparatus 3, all the other rays are all stopped by collimating apparatus 3.
Processor (not looking out among the figure) links to each other with described scattering detector 2, accepts scattering detector 2 and transmits the signal of coming, and analyzes the checking matter inner material.
The display (not shown), described display links to each other with described processor, is used for imaging and shows.
Embodiment two
In this embodiment, the signal based on the comprehensive scattering detector of the external hanging type mobile checking system of back scattering imaging and transmission detectors carries out imaging processing.Please refer to Fig. 4, Fig. 4 is the synoptic diagram of present embodiment.External hanging type mobile checking system based on back scattering imaging comprises:
Means of transport 4, this means of transport 4 is totally enclosed, and the means of transport 4 in the present embodiment is not limited to certain type car, can be the vehicle of truck, motor van or other types, and means of transport 4 is used for placing penetrating radiation source 6 and other devices.
Penetrating radiation source 6, be positioned at described means of transport 4, penetrating radiation source 6 be used to form ray, preferably, described penetrating radiation source 6 is the x radiographic source, and for example, penetrating radiation source 6 can be an X-ray tube, select the radiographic source of which kind of type, depend on the required energy in penetrating radiation source in the practical application.
Scattering detector 2, be positioned at the outside of described means of transport 4, it 2 places the outside of means of transport 4 to be convenient to install and later maintenance early stage with scatter sounding, and scattering detector 2 is used for absorbing the signal of the ray that comes from the testee scattering, collected signal is passed to processor, overall treatment.
Spatial modulator, between described penetrating radiation source 6 and described testee 1, spatial modulator is used for the emitted ray in control penetrating radiation source 6, makes it form a kind of scanning profile that can change in time.Preferably, spatial modulator comprises a collimating apparatus 3 and a flywheel 5, and flywheel 5 is between described collimating apparatus 3 and described penetrating radiation source 6.Flywheel 5 is made by the material that can stop ray, as being made by depleted nuclear fuel or tungsten etc.The curved surface groove is arranged on the flywheel 5, when radiation exposure to flywheel 5, only have the ray through the curved surface groove can pass through flywheel 5, all the other rays are all stopped by flywheel 5, collimating apparatus 3 also is to be made by the material that can stop ray, and collimating apparatus is provided with finedraw, when radiation exposure on collimating apparatus 3, only have the ray through finedraw can pass through collimating apparatus 3, all the other rays are all stopped by collimating apparatus 3.
Transmission detectors 7, described transmission detectors 7 and described scattering detector 2 lay respectively at the adjacent or relative both sides of testee 1, and transmission detectors 7 is used for absorbing the ray that is not stopped by article, forms signal and sends processor to, overall treatment.Projection detector 7 can be arranged on the crane span structure, as shown in Figure 4.
The processor (not shown) all links to each other with described scattering detector 2, described transmission detectors 7, accepts the signal that scattering detector 2 and transmission detectors 7 transmission come, and analyzes the checking matter inner material.
The display (not shown), described display links to each other with described processor, is used for imaging and shows.
It should be noted that; above content is the further description of the present invention being done in conjunction with concrete embodiment; 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 improvement or distortion drop in protection scope of the present invention.
Claims (5)
1. external hanging type mobile checking system based on back scattering imaging comprises:
Means of transport;
The penetrating radiation source, described penetrating radiation source is arranged in the described means of transport;
Processor is used for carrying out imaging processing;
Scattering detector, described scattering detector is electrically connected with described processor, and described scattering detector be used for to absorb the ray signal from the testee scattering, and described ray signal is sent to described processor processes;
Spatial modulator is for the ray profile of controlling described penetrating radiation source;
It is characterized in that:
Described scattering detector is positioned at the outside of described means of transport.
2. the external hanging type mobile checking system based on back scattering imaging according to claim 1 is characterized in that:
Described external hanging type mobile checking system based on back scattering imaging also comprises a transmission detectors, described transmission detectors is electrically connected with described processor, described transmission detectors be used for to absorb the ray that is not stopped by testee, and forms electric signal 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 is characterized in that:
Described spatial modulator is between described penetrating radiation source and described testee, and described spatial modulator comprises the flywheel of a collimating apparatus, between described collimating apparatus and described penetrating radiation source.
4. the external hanging type mobile checking system based on back scattering imaging according to claim 1 is characterized in that:
Described penetrating radiation source is the x radiographic source.
5. the external hanging type mobile checking system based on back scattering imaging according to claim 1 is characterized in that:
Described external hanging type mobile checking system based on back scattering imaging also comprises a display, and described display links to each other 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| WO2023125084A1 (en) * | 2021-12-30 | 2023-07-06 | 同方威视科技（北京）有限公司 | Mobile radiation inspection equipment and mobile radiation inspection system |
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| 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 |
| WO2023125084A1 (en) * | 2021-12-30 | 2023-07-06 | 同方威视科技（北京）有限公司 | Mobile radiation inspection equipment 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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| CN102854539B (en) | 2016-05-04 |
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