CN204129239U - Portable back scattering imaging rays safety detection apparatus - Google Patents
Portable back scattering imaging rays safety detection apparatus Download PDFInfo
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- CN204129239U CN204129239U CN201420368951.XU CN201420368951U CN204129239U CN 204129239 U CN204129239 U CN 204129239U CN 201420368951 U CN201420368951 U CN 201420368951U CN 204129239 U CN204129239 U CN 204129239U
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Abstract
The utility model relates to a kind of portable back scattering imaging rays safety detection apparatus, comprise: backward scattering scanister (2), detector (3), controller (4) and moveable platform (1), this moveable platform carries described backward scattering scanister, described detector and described controller, and can move relative to described object to be detected; Wherein, backward scattering scanister is the distributed X-ray source comprising multiple outgoing target spot (201), and each in multiple outgoing target spot can divergent-ray bundle independently; And wherein, backward scattering scanister, described detector and described controller together with described moveable platform relative in the process of described object to be detected movement, described object to be detected is scanned and safety inspection.
Description
Technical field
The utility model relates to a kind of back scattering imaging technology, particularly relates to a kind of portable back scattering imaging rays safety detection apparatus and method.
Background technology
The X ray backward scattering checkout facility of the existing movable type for checking the inside of vehicle etc. generally comprises radiographic source and detector, wherein, radiographic source is generally single-point type large angle source, and its ray forms pen bundle through rotation modulation mechanism, carries out point by point scanning in checking matter surface; Detector has certain bulk, to receive the scattered signal within the scope of larger space.
In the X ray backward scattering checkout facility of existing movable type, ray is modulated and formed scanning flying-spot scanner mechanism generally use wheeled flying-spot scanner mechanism.Form form of a stroke or a combination of strokes beam by the roller in large angle source arranged outside with modulation hole, the rotation along with roller utilizes form of a stroke or a combination of strokes beam to form one-dimensional scanning in scanned surface.In the equipment using wheeled flying-spot scanner mechanism, the size of the radiation spot that flying spot mechanism is formed in detected material surface and space distribution, can change along with modulation subtended angle, particularly distort at large angle place.Therefore a definite limitation is had to radiographic source subtended angle.Simultaneously in order to ensure areas imaging, the distance of radiographic source to scanned surface be there are certain requirements.
In addition, to be coupled as a whole portable system for radiographic source and detector, the distance between radiographic source to scanned object certainly will affect the distance of detector to scanned object.And the widening to cover the space of detector and claim of detector and scanned object surface distance.
Based on this, the utility model proposes a kind of new mobile type X ray back scattering imaging equipment and method.
Utility model content
The utility model is intended at least one aspect solving the above-mentioned problems in the prior art and defect.
The utility model provides a kind of portable back scattering imaging rays safety detection apparatus on the one hand, comprising: backward scattering scanister, and the beam for scanning object to be detected launched by this backward scattering scanister; Detector, this detector receives the backward scattering ray of the beam of the described object to be detected of scanning; Controller, this controller controls described backward scattering scanister, to make the beam of described backward scattering scanister transmitting for scanning described object to be detected; And moveable platform, this moveable platform carries described backward scattering scanister, described detector and described controller, and can move relative to described object to be detected; Wherein, described backward scattering scanister comprises distributed X-ray source and collimating apparatus, this distributed X-ray source comprises multiple outgoing target spot, each in described multiple outgoing target spot can divergent-ray bundle independently, and the ray of each target spot outgoing is collimated as at least one form of a stroke or a combination of strokes beam through collimating apparatus; And wherein, described backward scattering scanister, described detector and described controller together with described moveable platform relative in the process of described object to be detected movement, described object to be detected is scanned and safety inspection.
Alternatively, described controller controls backward scattering scanister, makes in the scanning process to described object to be detected, only has an outgoing target spot divergent-ray bundle in outgoing target spot multiple described in synchronization.
Alternatively, described controller controls backward scattering scanister, makes in the scanning process to described object to be detected, has two outgoing target spot divergent-ray bundles in outgoing target spot multiple described in synchronization at least.
Alternatively, described rays safety detection apparatus also comprises one or more distance measuring equipment, the backward scattering ray receipt surface that this distance measuring equipment is used for measuring in real time described detector apart from described object to be detected the ray plane of incidence between distance.Described controller determines based on the distance that described distance measuring equipment is measured the target spot simultaneously launching form of a stroke or a combination of strokes beam in multiple outgoing target spot.
Alternatively, the height can measuring object to be detected is arranged to by described distance measuring equipment, and the target spot making controller control corresponding height according to the height of the object to be detected detected goes out bundle.
The utility model provides a kind of method utilizing this portable back scattering imaging rays safety detection apparatus to carry out portable back scattering imaging safety check on the other hand, comprising:
(a): make the ray exit facet of moveable platform towards the surface to be detected of object to be detected and in a distance;
(b): moveable platform is moved along predetermined direction relative to object to be detected, and in moving process, make the ray exit facet of moveable platform be parallel to the surface to be detected of object to be detected;
(c): described controller controls described backward scattering scanister, make multiple outgoing target spot according to the predetermined order outgoing form of a stroke or a combination of strokes successively beam, to complete the scanning of a row flying spot corresponding with described multiple outgoing target spot on described object to be detected, and obtain the pixel data of this row flying spot;
(d): along with described moveable platform is relative to the movement of described object to be detected, utilize described backward scattering scanister to scan by column the region to be detected of described object to be detected, described controller splices the image in whole detected region according to the pixel data of every row flying spot.
Alternatively, in described step (C), backward scattering scanister described in the distance controlling that controller records according to described distance measuring equipment, makes have more than one target spot to launch form of a stroke or a combination of strokes beam at synchronization.
Alternatively, (be arranged to do the height measuring object to be detected, the target spot that described controller controls corresponding height according to the height of object to be detected goes out bundle to described distance measuring equipment.
Alternatively, in described step (b), described moveable platform keeps motionless, and described object to be detected moves relative to described moveable platform according to predetermined direction.
In the utility model, owing to have employed distributed X-ray source, when scanning by column object, each hot spot launched by the target spot nearest apart from this position, and the track subtended angle of beam is comparatively close to parallel.Therefore, the size of hot spot formed on object to be detected thing surface and intensity less in the change of longitudinal direction, institute forms hot spot more evenly, thus improves the image quality of the marginal portion of object to be detected.
In addition, by using multiple spot to scan simultaneously, effectively improve the speed that object to be detected is scanned, thus significantly shorten the time needed for safety inspection.
Accompanying drawing explanation
Accompanying drawing below indicates the embodiment of this technology.These drawings and embodiments provide some embodiments of this technology in mode that is non-limiting, nonexhaustive, wherein:
Fig. 1 shows the vertical view of the movable back scattering rays safety detection apparatus according to the utility model embodiment;
Fig. 2 shows the side view of the movable back scattering rays safety detection apparatus according to the utility model embodiment;
Fig. 3 shows the rear view of the movable back scattering rays safety detection apparatus according to the utility model embodiment; And
Fig. 4 shows the schematic diagram according to the distant state of the movable back scattering rays safety detection apparatus distance object to be detected of the utility model embodiment.
Embodiment
To specific embodiment of the utility model be described in detail below, it should be noted that the embodiments described herein is only for illustrating, is not limited to the utility model.In the following description, in order to provide thorough understanding of the present utility model, a large amount of specific detail has been set forth.But, those of ordinary skill in the art be it is evident that: these specific detail need not be adopted to carry out the utility model.In other instances, in order to avoid obscuring the utility model, do not specifically describe known structure, material or method.
In whole instructions, " embodiment ", " embodiment ", " example " or mentioning of " example " are meaned: the special characteristic, structure or the characteristic that describe in conjunction with this embodiment or example are comprised at least one embodiment of the utility model.Therefore, the phrase " in one embodiment " occurred in each place of whole instructions, " in an embodiment ", " example " or " example " differ to establish a capital and refer to same embodiment or example.In addition, can with any suitable combination and/or sub-portfolio by specific feature, structure or property combination in one or more embodiment or example.In addition, it should be understood by one skilled in the art that term "and/or" used herein comprises any and all combinations of one or more relevant project listed.
First embodiment
As shown in Figure 1-Figure 3, show an embodiment according to portable back scattering imaging rays safety detection apparatus of the present utility model, it comprises backward scattering scanister 2, detector 3, controller 4 and moveable platform 1.
As Figure 1-3, backward scattering scanister 2, detector 3, controller 4 are arranged on moveable platform 1, and can move relative to object to be detected 5 together along with moveable platform 1.In this embodiment, object to be detected 5 is a vehicle.Certainly, this object to be detected 5 is not limited to vehicle, and it can be any movement or fixed object that inside is mounted with goods.
In this embodiment, backward scattering scanister 2 is distributed X-ray source 20, it comprises multiple outgoing target spot 201, and the plurality of target spot 201 is arranged to row along the direction (vertical direction) vertical with the direct of travel (horizontal direction) of moveable platform 1.The quantity of target spot does not limit, and can arrange according to the height of the object that will be detected.In the distributed X-ray source 20 comprising multiple outgoing target spot 201, each target spot has the ability of independent emergent ray, and can be controlled by external control signal with specific order emergent ray separately, or some emerging ray simultaneously.In addition, this backward scattering scanister 2 also comprises the collimating apparatus 210 being arranged on distributed X-ray source front, and the ray of each target spot outgoing collimation can be at least one form of a stroke or a combination of strokes beam by this collimating apparatus.
In this embodiment, each target spot of x-ray source is all configured with the collimating components that X ray carries out modulating action, collimating components makes the bundle of each target spot outgoing by outgoing two simultaneously restrainting lip pencil X ray after collimating components before target spot, two positions of the examined vehicle 5 of projection.Because this embodiment is the collimating components that each outgoing target spot is provided with that lip pencil X ray is restrainted in outgoing two simultaneously, thus, scanning each time indeed achieves twice X ray projection to inspected object, namely carries out twice sweep, therefore obtains double scattering signal.By to the multiple signal process obtained, more complete, the picture that contrast is higher of inspected object can be obtained by single pass; Or higher sweep velocity.
Certainly, also can according to actual needs, the beam of each target spot other numbers of outgoing simultaneously after collimating apparatus.
In this embodiment, controller 4 pairs of backward scattering scanister 2 control, and make multiple target spot 201 according to the predetermined order outgoing form of a stroke or a combination of strokes successively beam.Such as, multiple target spot 201 is the beam of the outgoing form of a stroke or a combination of strokes successively from top to bottom, to complete the scanning to the row on the region to be checked of detected vehicle 5.In some applications, the height of detected material may be greater than single radiogenic distribution length, in this case, multiple distributed source can be stitched together at length direction, to form the distributed source needing length.
In the embodiment shown, detector 3 is made up of vertically stacking multiple detector cells 301.Detector cells 301 is preferably strip, its longer limit horizontal positioned, and pastes between two according to its long limit and define detector 3.The number of detector cells 301 close to radiographic source target spot number, also can be less than radiographic source target spot number.Alternatively, the collimation sheet 310 that detector cells 301 can arrange certain depth is between any two isolated, and contributes to reducing the mutual interference of scattered ray between different flying spot.
In this embodiment, when utilizing this portable back scattering imaging rays safety detection apparatus to scan detected vehicle 5, controller 4 controls multiple outgoing target spot 201, the beam of the outgoing form of a stroke or a combination of strokes successively from top to bottom, complete a column scan in the region to be detected to detected vehicle 5, only has a target spot emergent ray in this scanning process at every turn, therefore, as long as the reading of all for the moment of each target spot emergent ray detector cells 301 is added by controller 4, just can obtain the pixel data of the flying spot corresponding to this target spot, after a column scan completes, obtain the pixel data of this row flying spot, then, along with advancing of moveable platform 1, the region to be detected of detected vehicle 5 is scanned by column, finally after moveable platform 1 crosses detected vehicle 5, the pixel data of every row flying spot is spliced, obtains the complete image in detected region.
This embodiment provides a kind of portable back scattering imaging safety inspection method simultaneously, comprises the following steps:
(a): make the ray exit facet of moveable platform 1 towards the surface to be detected of object to be detected and in a distance;
(b): moveable platform 1 is moved along predetermined direction relative to object to be detected, and in moving process, make the ray exit facet of described moveable platform 1 be parallel to the surface to be detected of object to be detected;
(c): controller 4 controls backward scattering scanister 2, make multiple outgoing target spot 2 according to the predetermined order outgoing form of a stroke or a combination of strokes successively beam, to complete the scanning of a row flying spot corresponding with described multiple outgoing target spot 201 on described object to be detected, and obtain the pixel data of this row flying spot;
(d): along with described moveable platform 1 is relative to the movement of described object to be detected, utilize described backward scattering scanister 2 to scan by column the region to be checked of described object to be detected, described controller 4 splices the image in whole tested region according to the pixel data of every row flying spot.
In this embodiment, because the target spot of distributed source is in space in a column distribution, when scanning by column object, each hot spot launched by the target spot nearest apart from this position, and the track subtended angle of beam is comparatively close to parallel.And in the situation in single target spot source, larger emergence angle need be used at image two ends.Therefore, compare the situation using single target spot source, the size of the hot spot that the distributed source comprising multiple outgoing target spot of the present embodiment is formed on object to be detected thing surface and intensity less in the change of longitudinal direction, to form hot spot more even, thus improve the image quality of the marginal portion of object to be detected.
In this embodiment, when object to be detected is scanned by column, only has target spot outgoing form of a stroke or a combination of strokes beam (also referred to as simple scan) at every turn, the distance between detector and tested object can be considered, for the scattered ray of each analyzing spot (flying spot), all receive by whole detector area.The shortcoming of this scan mode is, the time completed needed for scanning is longer.
Second embodiment
When utilizing X ray to scan object to be detected, ray can be decayed rapidly along with the incident degree of depth at tested side interior of articles, and therefore back scattering imaging mainly reflects the structural information of shallow-layer in checking matter surface, and the degree of depth is darker, and the information that can reflect is fewer.In addition, corresponding to each flying spot (i.e. analyzing spot), it is all mainly distributed within the scope of certain subtended angle by the ray of object scattering, and the part arriving detector surface is mainly distributed in just within certain area of flying spot position, and remotely distributes seldom at distance flying spot.
Based on above 2 points, can consider to make distributed source have multiple target spot to launch at synchronization simultaneously, and the scattered ray of the adjacent flying spot corresponding to two target spots simultaneously launched does not interfere with each other on detector surface, or the interference of scattered ray is each other remained within the scope of acceptable.
The scattered ray of single flying spot is determined by the distance of scanned object and detector surface in the main distribution range of detector surface, and its relation can be obtained by Monte Carlo simulation or experiment measuring.Distance between nearest 2 that determine that this relation then can determine to launch simultaneously.
Therefore, second embodiment provides a kind of movable back scattering rays safety detection apparatus that simultaneously can use multiple target spot emergent ray, the movable back scattering rays safety detection apparatus difference of itself and the first embodiment is, also comprise one or more distance measuring equipment 101, for the ray plane of incidence of measuring object to be detected in real time apart from detector scattered ray receiving surface between distance, other parts are identical with the parts of the movable back scattering rays safety detection apparatus of the first embodiment.
The distance that controller 4 is measured according to this one or more distance measuring equipment 101, determines the distance between nearest two target spots of simultaneously launching, then determines the target spot of outgoing simultaneously according to whole radiogenic distribution length.
Such as, suppose that the target spot number of whole radioactive source system is Nt, adjacent two target spots be spaced apart S, the distance between nearest 2 that simultaneously launch is D, then the target spot number simultaneously launched
N＝N
t*S/D
In moveable platform 1 and object to be detected distance hour, the target spot of outgoing is simultaneously many, apart from time large, the target spot of outgoing is simultaneously few, special in distance reaches a Dingyuan, each moment only has a target spot outgoing, and this has just become the situation of existing single target spot x-ray source.
The signal reading of each moment each detector cells recorded by detector 3, the scope that the scattered ray calculating each moment each outgoing target spot by controller 4 afterwards covers, reading in coverage is added, obtains the pixel data of the flying spot corresponding to this outgoing target spot.
Such as, supposing the target spot of outgoing simultaneously apart from being D and target spot number is N, then in the scanning process of row, control system 4 controls the target spot outgoing successively in each section, initial outgoing target spot is 1, (D/S)+1,2 (D/S)+1 ..., (N-1) (D/S)+1, the target spot of subsequent time outgoing is afterwards 2, (D/S)+2,2 (D/S)+2 ..., (N-1) (D/S)+2, finally arrive (D/S), 2 (D/S), 3 (D/S) ..., N (D/S), complete a column scan.For the situation that target spot number is not distance integral multiple, the eye point of last section can correspondingly reduce.
Detector 3 records the backscatter signal reading in each unit of each moment.Control system 4 records the target spot outgoing situation of each corresponding moment distributed source, and is added by the backscatter signal reading in the scattered ray coverage belonging to same outgoing target spot of detector 3, obtains the pixel data of the flying spot corresponding to this target spot.During as No. 1 target spot outgoing, No. 1 target spot is added to the reading of the detector cells 301 in 1+D/S2 target spot correspondence position the pixel data obtaining the flying spot corresponding to No. 1 target spot.The splicing of the data of each section is obtained the complete data of row.
In addition, a set of imaging system can be placed respectively realize in translation stage 1 both sides the scanning to both sides.
In addition, according to the utility model preferred embodiment, the height can measuring object to be detected is arranged to by described distance measuring equipment 101, the target spot 201 making controller 4 control corresponding height according to the height of the object to be detected detected goes out bundle, thus the target spot 201 that can control differing heights according to the difference of the height of object to be detected carries out bundle.
Such as, if the height of object to be detected is less, then the target spot that only need control in the altitude range of object to be detected goes out bundle, and the target spot not in object to be detected altitude range does not need bundle.Thus, improve detection efficiency.
This embodiment provides a kind of portable back scattering imaging safety inspection method simultaneously, comprises the following steps:
(a): make the ray exit facet of moveable platform 1 towards the surface to be detected of object to be detected and in a distance;
(b): moveable platform 1 is moved along predetermined direction relative to object to be detected, and in moving process, make the ray exit facet of described moveable platform 1 be parallel to the surface to be detected of object to be detected;
(c): the distance controlling backward scattering scanister 2 that controller 4 records according to distance measuring equipment 101, make multiple outgoing target spot 2 according to the predetermined order outgoing form of a stroke or a combination of strokes successively beam, and synchronization has more than one target spot outgoing form of a stroke or a combination of strokes beam, to complete the scanning of a row flying spot corresponding with described multiple outgoing target spot 201 on described object to be detected, and obtain the pixel data of this row flying spot;
(d): along with described moveable platform 1 is relative to the movement of object to be detected, utilize described backward scattering scanister 2 to scan by column the region to be checked of described object to be detected, described controller 4 splices the image in whole tested region according to the pixel data of every row flying spot.
In this embodiment, controlled multiple outgoing target spots of backward scattering scanister 2 by controller 4, make synchronization have multiple target spot outgoing simultaneously form of a stroke or a combination of strokes beam, namely multiple spot scans simultaneously, and the mode comparing simple scan effectively can improve sweep velocity.The scan mode of simple scan does not consider the distance between detector and tested object, for the scattered ray of each flying spot, all receives backscatter signal by whole detector area.When object to be detected and detector distance close to time, only have area to be capture area.In this embodiment, determine the flying spot number simultaneously scanned according to the distance measured, object is scanned with multiple flying spot closely time simultaneously, thus can to complete scanning higher than the speed of simple scan several times.
In above embodiment, described object to be detected keeps motionless, has come scanning and safety inspection by mobile described portable back scattering imaging rays safety detection apparatus.The utility model is not limited to this situation.Such as, in some alternative embodiments, when carrying out safety check to some moveable vehicles, this portable back scattering imaging rays safety detection apparatus keeps motionless, vehicle to be detected moves relative to this portable back scattering imaging rays safety detection apparatus, and backward scattering scanister 2 can complete scanning to detected vehicle and safety inspection in the same mode scanned by column.
Although exemplary embodiment describe the utility model with reference to several above, should be appreciated that term used illustrates and exemplary and nonrestrictive term.Specifically can implement in a variety of forms due to the utility model and not depart from spirit or the essence of utility model, so be to be understood that, above-described embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in claim of enclosing, therefore fall into whole change in claim or its equivalent scope and remodeling and all should be claim of enclosing and contained.
Claims (16)
1. a portable back scattering imaging rays safety detection apparatus, comprising:
Backward scattering scanister (2), the beam for scanning object to be detected launched by this backward scattering scanister;
Detector (3), this detector receives the backward scattering ray of the beam of the described object to be detected of scanning;
Controller (4), this controller controls described backward scattering scanister, to make the beam of described backward scattering scanister transmitting for scanning described object to be detected; With
Moveable platform (1), this moveable platform carries described backward scattering scanister, described detector and described controller, and can move relative to described object to be detected;
Wherein, described backward scattering scanister (2) comprises distributed X-ray source and collimating apparatus (210), this distributed X-ray source comprises multiple outgoing target spot (201), each in described multiple outgoing target spot can divergent-ray bundle independently, and the ray of each target spot outgoing is collimated as at least one form of a stroke or a combination of strokes beam through collimating apparatus (210); And
Wherein, described backward scattering scanister, described detector and described controller together with described moveable platform relative in the process of described object to be detected movement, described object to be detected is scanned and safety inspection.
2. portable back scattering imaging rays safety detection apparatus according to claim 1, wherein,
Described multiple outgoing target spot (201) is arranged to row on the direction vertical with the direct of travel of described mobile platform (1).
3. portable back scattering imaging rays safety detection apparatus according to claim 1, wherein,
Described controller (4) controls described backward scattering scanister, launches form of a stroke or a combination of strokes beam to make described multiple outgoing target spot successively according to predetermined order.
4. portable back scattering imaging rays safety detection apparatus according to claim 2, wherein,
Described controller (4) controls described backward scattering scanister, launches form of a stroke or a combination of strokes beam to make described multiple outgoing target spot successively according to predetermined order.
5. portable back scattering imaging rays safety detection apparatus according to claim 3, wherein,
Described controller (4) controls backward scattering scanister (2), makes in the scanning process to described object to be detected, only has an outgoing target spot to launch form of a stroke or a combination of strokes beam in outgoing target spot multiple described in synchronization.
6. portable back scattering imaging rays safety detection apparatus according to claim 4, wherein,
Described controller (4) controls backward scattering scanister (2), makes in the scanning process to described object to be detected, only has an outgoing target spot to launch form of a stroke or a combination of strokes beam in outgoing target spot multiple described in synchronization.
7. portable back scattering imaging rays safety detection apparatus according to claim 3, wherein,
Described controller (4) controls backward scattering scanister (2), makes in the scanning process to described object to be detected, has at least two outgoing target spots to launch form of a stroke or a combination of strokes beam in outgoing target spot multiple described in synchronization.
8. portable back scattering imaging rays safety detection apparatus according to claim 4, wherein,
Described controller (4) controls backward scattering scanister (2), makes in the scanning process to described object to be detected, has at least two outgoing target spots to launch form of a stroke or a combination of strokes beam in outgoing target spot multiple described in synchronization.
9. portable back scattering imaging rays safety detection apparatus according to claim 7, wherein,
Described rays safety detection apparatus also comprises one or more distance measuring equipment (101), the backward scattering ray receipt surface that this distance measuring equipment is used for measuring in real time described detector (3) apart from described object to be detected the ray plane of incidence between distance.
10. portable back scattering imaging rays safety detection apparatus according to claim 8, wherein,
Described rays safety detection apparatus also comprises one or more distance measuring equipment (101), the backward scattering ray receipt surface that this distance measuring equipment is used for measuring in real time described detector (3) apart from described object to be detected the ray plane of incidence between distance.
11. portable back scattering imaging rays safety detection apparatus according to claim 9, wherein,
Described controller (4) determines based on the distance that described distance measuring equipment is measured the target spot simultaneously launching form of a stroke or a combination of strokes beam in described multiple outgoing target spot.
12. portable back scattering imaging rays safety detection apparatus according to claim 10, wherein,
Described controller (4) determines based on the distance that described distance measuring equipment is measured the target spot simultaneously launching form of a stroke or a combination of strokes beam in described multiple outgoing target spot.
13. portable back scattering imaging rays safety detection apparatus according to claim 9, wherein,
The height can measuring object to be detected is arranged to by described distance measuring equipment (101), and the target spot (201) making controller (4) control corresponding height according to the height of the object to be detected detected goes out bundle.
14. portable back scattering imaging rays safety detection apparatus according to claim 10, wherein,
The height can measuring object to be detected is arranged to by described distance measuring equipment (101), and the target spot (201) making controller (4) control corresponding height according to the height of the object to be detected detected goes out bundle.
15. portable back scattering imaging rays safety detection apparatus according to any one of claim 1-14, wherein,
Described detector (3) comprises multiple strip probe units (301) of arranging along the direction vertical with the direct of travel of described mobile platform (1).
16. portable back scattering imaging rays safety detection apparatus according to claim 15, wherein,
Be provided with the collimating apparatus (310) inserting certain depth between these two detector cells between described every two detector cells, this collimating apparatus is for reducing the mutual interference of the backward scattering ray of flying spot different on object to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420368951.XU CN204129239U (en) | 2014-07-04 | 2014-07-04 | Portable back scattering imaging rays safety detection apparatus |
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| CN201420368951.XU CN204129239U (en) | 2014-07-04 | 2014-07-04 | Portable back scattering imaging rays safety detection apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133251A (en) * | 2014-07-04 | 2014-11-05 | 清华大学 | Movable-type backscattering imaging safety inspection device and method |
| CN112033986A (en) * | 2019-08-09 | 2020-12-04 | 山东大学 | TBM slag sheet ray back scattering real-time scanning imaging device and method |
-
2014
- 2014-07-04 CN CN201420368951.XU patent/CN204129239U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104133251A (en) * | 2014-07-04 | 2014-11-05 | 清华大学 | Movable-type backscattering imaging safety inspection device and method |
| US9846257B2 (en) | 2014-07-04 | 2017-12-19 | Tsinghua University | Mobile back scattering imaging security inspection apparatus and method |
| CN112033986A (en) * | 2019-08-09 | 2020-12-04 | 山东大学 | TBM slag sheet ray back scattering real-time scanning imaging device and method |
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