CN108459354A - Have an X-rayed scanning device - Google Patents
Have an X-rayed scanning device Download PDFInfo
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- CN108459354A CN108459354A CN201810445465.6A CN201810445465A CN108459354A CN 108459354 A CN108459354 A CN 108459354A CN 201810445465 A CN201810445465 A CN 201810445465A CN 108459354 A CN108459354 A CN 108459354A
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Abstract
A kind of perspective scanning device, including：Biparting beam X-ray source, for emitting the first X-ray fladellum that parallel or coplanar subtended angle is α and the second X-ray fladellum that subtended angle is β to its homonymy, the first X-ray fladellum and the second X-ray fladellum are used for transmission scan measured target, and the projection split in the plane parallel with the two is the sector that subtended angle is alpha+beta；And detector, the exiting side in the first X-ray fladellum and the second X-ray fladellum in biparting beam X-ray source is set, the first X-ray fladellum and the second X-ray fladellum are received.
Description
Technical field
The present invention relates to safety inspection technical fields, and in particular to a kind of perspective scanning device, for detecting pedestrian, article
Or vehicle etc..
Background technology
Human lens scanning device is a kind of conventional electron scanning rays safety detection apparatus, is usually used in airport, station, law court etc.,
It uses electromagnetic radiation as waves, such as X-ray to penetrate human body to be detected.Conventional human lens scanning device, which exists, takes up an area sky
Between it is larger, resolution ratio is low the problems such as.
Perspective scanning device is it is necessary to be improved and perfect, to pass through smaller space, lighter weight
The comprehensive examination for being detected target is efficiently and quickly completed in amount, lower cost and better simply design.
Invention content
In view of above-mentioned technical problem, in order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a kind of perspective scanning
Equipment.
According to an aspect of the present invention, a kind of perspective scanning device is provided comprising：Biparting beam X-ray source is used for it
The second X-ray fladellum that homonymy emits the first X-ray fladellum that parallel or coplanar subtended angle is α and subtended angle is β, described
One X-ray fladellum and the second X-ray fladellum are used for transmission scan measured target, the projection in the plane parallel with the two
Split is the sector that subtended angle is alpha+beta；And detector, it is arranged in the first X-ray fladellum in biparting beam X-ray source and
The exiting side of two X-ray fladellums receives the first X-ray fladellum and the second X-ray fladellum.
In some embodiments, the biparting beam X-ray source and the centre position of the detector are substantially aligned.
In some embodiments, the detector is divided into the first probe portion and the second probe portion by centre position, the
One probe portion receives the first X-ray fladellum, and the second probe portion receives the second X-ray fladellum, and α=β.
In some embodiments, first probe portion to be parallel to the first X-ray fladellum and the second X-ray fan-shaped
The section of beam is inType, second probe portion are parallel to the first X-ray fladellum and the second X-ray fladellum
Section is inType.
In some embodiments, perspective scanning device further includes double aperture slit collimator, and the double aperture slit collimator includes：The
One collimating slit, for passing through and collimating the first X-ray fladellum；And second collimating slit, for passing through and collimating the 2nd X
Ray fladellum.
In some embodiments, the thickness of the first collimating slit shrinkage limit the first X-ray fladellum, second collimation
The thickness of slit shrinkage limit the second X-ray fladellum.
In some embodiments, the biparting beam X-ray source uses an X-ray tube, including：Tube body；First fan-beam light
Source and the second fan-beam light source, the both ends for the tubular body being respectively set are respectively used to transmitting the first X-ray fladellum and second
X-ray fladellum；Anode handle, be arranged between the first fan-beam light source and the second fan-beam light source, be the first fan-beam light source and
Second fan-beam light source provides anode potential.
In some embodiments, the first fan-beam light source includes：First cathode, including the first filament, described first is cloudy
Pole connects the first negative high voltage current potential and the first filament supply；The first anode includes the first part of anode handle the first filament of direction
And the first target spot in the first part towards the first filament end is set；The second fan-beam light source includes：Second is cloudy
Pole, including the second filament, second cathode connect the second negative high voltage current potential and the second filament supply；Second plate, including sun
Pole handle towards the second filament second part and the second target spot in the second part towards the second filament end is set；Its
Described in the first target spot and the second target spot be excited and generate the first initial X-ray fladellum respectively and the second initial X-ray is fan-shaped
Beam.
In some embodiments, the first negative high voltage current potential and the second negative high voltage current potential are same negative high voltage electricity
Position, the anode handle ground connection.
In some embodiments, the first fan-beam light source further includes：First limit angle collimator, including the first limit angle collimation
Slit allows at least part of the first initial X-ray fladellum to pass through, and generates the first X-ray fladellum；Second fan-beam
Light source further includes：Second limit angle collimator, including the second limit angle collimating slit, allow the second initial X-ray fladellum at least
A part passes through, and generates the second X-ray fladellum.
In some embodiments, the first limit angle collimator only allows the intermediate fan-beam of the first initial X-ray fladellum
Part passes through, and the second limit angle collimator only allows the intermediate fan-beam part of the second initial X-ray fladellum to pass through.
In some embodiments, the first filament of first cathode, the first target spot, the second cathode the second filament and
Second target spot is arranged on being parallel to the same straight line of first part and second part of the anode handle.
In some embodiments, perspective scanning device further includes：Bogey is arranged for carrying measured target in institute
It states between biparting beam X-ray source and detector, and can be relative to the biparting beam X-ray source and detector along perpendicular to institute
It states and is moved in the plane of the first X-ray fladellum and the second X-ray fladellum.
In some embodiments, when measured target size is larger, the first X-ray fladellum penetrates the tested mesh
Target first part, the second X-ray fladellum penetrate the second part of the measured target.
In some embodiments, perspective scanning device further includes：Driving device, for controlling bogey relative to described
Biparting beam X-ray source and detector edge are moved in the plane of the first X-ray fladellum and the second X-ray fladellum
It is dynamic；Number device for picking carries out data acquisition to the signal that the detector detects；Control process device, for described biparting
Beam X-ray source control and the data of acquisition is handled and are imaged；And display device, for formed image into
Row display.
Description of the drawings
Fig. 1 is the structural schematic diagram of the perspective scanning device of the present invention in the related technology；
Fig. 2 is the structural schematic diagram that scanning device is had an X-rayed in one embodiment of the invention；
Fig. 3 is the structural schematic diagram in the biparting beam X-ray source in perspective scanning device in one embodiment of the invention；
Fig. 4 is the sectional view along the directions B-B in Fig. 3；
Fig. 5 is the ray fladellum schematic diagram that biparting beam X-ray source structure generates；
Fig. 6 is the schematic diagram at the directions the A visual angle of double aperture slit collimator in Fig. 2；
Fig. 7 is the schematic diagram at the directions the A visual angle of detector in Fig. 2.
Specific implementation mode
Certain embodiments of the invention will be done with reference to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, various embodiments of the present invention can be realized in many different forms, and should not be construed
To be limited to this several illustrated embodiment；Relatively, these embodiments are provided so that the present invention meets applicable legal requirement.
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
It is found by the applicant that there are spaces is larger, resolution ratio is low etc. asks for human body transmission scan equipment in the related technology
Topic.Fig. 1 is the structural schematic diagram of the perspective scanning device of the present invention in the related technology, and human lens scanning in the related technology is set
Standby structure is as shown in Figure 1, main includes that the x-ray source 1 being fixedly mounted and detector 2, tested person 3 stand on transmission mechanism 4.
In order to reduce the requirement to the outgoing subtended angle of x-ray source 1 γ and reduce plant width, x-ray source 1 is usually placed in equipment bottom right
Angle, the horizontal direction direct projection sole of X-ray beam form the angle looked up to human body to upper edge X-ray exit direction.In order to reduce
Device height, for detector 2 generally in Γ shapes, upper lateral part is used for head check.Tested person 3 is flat as transmission mechanism 4 is done
Shifting movement, completes the scanning of whole body perspective by column and x-ray source is placed in bottom, passes through X by imaging, this kind of human lens scanning device
Ray fladellum looks squarely sole, looks up the crown, although reducing the requirement to line subtended angle, X-ray beam is to tested person's
Incident angle and penetration thickness increase, and the spatial resolution on image top is low.In addition, it is also difficult to find that foot's special angle is put
Contraband.
In another human lens scanning device structure in the related technology, device height side will be moved on on x-ray source 1
To centre position, remained unchanged at a distance from channel in the horizontal direction, as shown in the dotted portion of Fig. 1.In order to guarantee
There are same detection height, the subtended angle of x-ray source 1 to increase to γ ', 2 bottom of detector extends, or is designed as C-shaped.If
Want 1 subtended angle of x-ray source is kept to remain γ constant, then need to be moved to right a distance can, can so plant width be caused to increase
Add.
In this kind of human lens scanning device, if keeping x-ray source target spot to constant with the lateral distance of tested person, by X
Radiographic source is placed in the centre position of device height, then line subtended angle, which wants sufficiently large, could cover Whole Body.X sector beam angles are super
It crosses a certain range and can bring about the problems such as output dose rate is uneven and boundary dosage rate obviously decays, so as to cause picture quality
Decline, especially periphery distortion.If at this time x-ray source is continued, in the horizontal direction far from detector, can theoretically reduce
Subtended angle, but required energy bigger, and plant width and floor space is caused to increase.
In order to overcome the problems, such as it is above-mentioned it is found by the applicant that, the present invention provides a kind of perspective scanning devices, including biparting beam X
Radiographic source and detector, biparting beam X-ray source are used to emit the first X-ray that parallel or coplanar subtended angle is α to its homonymy and fan
The pencil of forms and the second X-ray fladellum that subtended angle is β, the first X-ray fladellum and the second X-ray fladellum are used for transmission scan quilt
Target is surveyed, the projection split in the plane parallel with the two is the sector that subtended angle is alpha+beta；Detector setting is penetrated in biparting beam X
The exiting side of the first X-ray fladellum and the second X-ray fladellum of line source receives the first X-ray fladellum and the second X-ray
Fladellum.
Using transmission scan equipment provided by the invention, x-ray source can be placed in the centre position of device height, X is penetrated
Harness will not be excessive to the incidence angle and penetration thickness that are detected human body, image quality is ensured, using the smaller X-ray of two subtended angles
Fladellum is spliced into an X-ray beam compared with large angle, is keeping the situation that distance is relatively small between x-ray source and tested human body
Under, detected Whole Body can be covered so that plant width and floor space are smaller.And the subtended angle of single X-ray fladellum
It is smaller, the problems such as output dose rate is uneven and boundary dosage rate obviously decays is avoided, has ensured picture quality.
It will be understood by those skilled in the art that transmission scan equipment disclosed by the invention can detect a variety of measured targets,
Such as human body, animal, article etc..For convenience of explanation, below in the detail specifications of embodiment using measured target as human body
For illustrate.
Fig. 2 is the structural schematic diagram that scanning device is had an X-rayed in one embodiment of the invention, as shown in Fig. 2, the present invention one is implemented
Example provides a kind of perspective scanning device 10, which includes mainly biparting beam X-ray source 11 and detector 13.
Biparting beam X-ray source 11 emits the first X-ray fladellum and subtended angle that parallel or coplanar subtended angle is α to its homonymy
For the second X-ray fladellum of β, the first X-ray fladellum and the second X-ray fladellum are tested mesh for transmission scan
Mark, the projection split in the plane parallel with the two is the sector that subtended angle is alpha+beta.
Detector 13, for example, linear array detector are arranged in the first X-ray fladellum in biparting beam X-ray source 11 and second
The exiting side of X-ray fladellum receives the first X-ray fladellum and the second X-ray fladellum.
In some embodiments, the subtended angle α of the first X-ray fladellum can be with the subtended angle β phases of the second X-ray fladellum
Deng at this time as shown in Figure 1, biparting beam X-ray source 11 is substantially provided in the alignment of the centre position in 13 height of detector, i.e., double
Fan-beam x-ray source 11 is arranged in the centre position of perspective scanning device height, and biparting beam X-ray source 11 is generated compared with the two of Narrow Flare Angle
A X-ray fladellum, output dose rate stable and uniform and efficient are conducive to promote image quality.
Detector 13 is divided into the first probe portion 13a and the second probe portion 13b by centre position in the height direction,
Wherein superposed first probe portion 13a receives the first X-ray fladellum, and the second probe portion 13b positioned at lower part connects
Receive the second X-ray fladellum.First probe portion 13a and the second probe portion 13b can be respectively a linear array detector, and two
Person is spliced into detector 13.
In one embodiment, the first probe portion 13a is parallel to the first X-ray fladellum and the second X-ray fladellum
Section be inType, the section for being parallel to the first X-ray fladellum and the second X-ray fladellum of the second probe portion 13b
It is inType, thus detector 13 is in that " [" type, upper lateral part is for being tested human body head check, lower, transverse on the whole
Part can be effectively reduced device height, and can take into account the inspection of head and foot for being tested human foot's inspection.
As shown in Fig. 2, perspective scanning device 10 further includes bogey 15, bogey 15 is for carrying tested human body
14.Bogey 15 is arranged between the biparting beam X-ray source and detector, and can be relative to biparting beam X-ray source
11 and detector 13 moved along in the plane of the first X-ray fladellum and the second X-ray fladellum.Specifically,
Perspective scanning device 10 further includes driving motor 18 and perpendicular to the first X-ray fladellum and the second X-ray fladellum
The guide rail 17 of plane setting, under the driving of driving motor 18, bogey 15 may carry tested human body on guide rail 17
Sliding so that the first X-ray fladellum and the second X-ray fladellum are completed to have an X-rayed scanning to the whole body for being tested human body 14 by column,
As shown in Fig. 2, the first X-ray fladellum is transmitted through the top half of human body, is received and is detected by the first probe portion 13a,
Second X-ray fladellum is transmitted through the lower half portion of human body, is received and is detected by the second probe portion 13b.
In some embodiments, it is designed with handrail on bogey 15, is grasped for tested person 14, eliminated translational motion and bring
Fall and the security risks such as fall.
In some embodiments, bogey 15 may be used the mode of transmission belt and carry human motion.
As shown in Fig. 2, perspective scanning device 10 further includes double aperture slit collimator 12, the is provided in double aperture slit collimator 12
One collimating slit 12a and the second collimating slit 12b, the first collimating slit 12a allow the first X-ray fladellum by and collimate the
One X-ray fladellum；Second collimating slit 12b allow the second X-ray fladellum by and collimate the second X-ray fladellum.
In one embodiment, the width that the first collimating slit 12a and the second collimating slit 12b can be rationally designed, to contract
The the first X-ray fladellum and the second X-ray fladellum that limit passes through the first collimating slit 12a and the second collimating slit 12b respectively
Thickness so that preferably detection is met with penetrating by the beam thickness of the first collimating slit 12a and the second collimating slit 12b
Harness thickness is conducive to subsequent detection and is imaged.
As shown in Fig. 2, perspective scanning device 10 further includes automatically controlled display module 16, automatically controlled display module 16 includes that driving fills
Set 16a, number device for picking 16b, control process device 16c, interface unit 16d and display device 16e.
Driving device 16a is for controlling driving motor 18, and control carrying is by being tested the bogey 15 of human body relative to institute
Biparting beam X-ray source 11 and detector 13 are stated along the plane perpendicular to the first X-ray fladellum and the second X-ray fladellum
It is interior to be moved along guide rail 17.And then realize that the first X-ray fladellum and the second X-ray fladellum complete the scanning to human body.
Number device for picking 16b carries out data acquisition to the signal that the detector detects, and is transmitted to control process device
16c。
Control process device 16c is handled and is imaged to the data of acquisition, in some embodiments, control process device
16c can also control the keying in biparting beam X-ray source.
The image of formation is sent to display device 16e to be shown through interface unit 16d, is observed by manager
Judge.
Biparting beam X-ray source structure 11 and working method in perspective scanning device 10 are introduced in detail below.
Fig. 3 is the structural schematic diagram in the biparting beam X-ray source 11 in perspective scanning device in one embodiment of the invention.Such as figure
Shown in 3, biparting beam X-ray source structure includes X-ray tube and high voltage power supply, wherein X-ray tube includes tube body 300, the first fan-beam
Light source 100 and the second fan-beam light source 200 and anode handle 400, the quantity of high voltage power supply can be with one or two.
Tube body 300 is the long tubular tube body of a substantial symmetry, the first fan-beam light source 100 and the second fan-beam light source 200, is divided
The both ends for the tubular body not being arranged, for emitting the first X-ray fladellum and the second X-ray fladellum.
Anode handle 400 is arranged between the first fan-beam light source 100 and the second fan-beam light source 200, is in inverted " t " type structure, can
The anode of two high voltage power supplies is connected, anode potential is provided for the first fan-beam light source 100 and the second fan-beam light source 200.Anode
Handle 400 is made of metal material, for example, by using red copper or copper alloy.
First fan-beam light source 100 includes mainly the first cathode 104, the first anode and the first limit angle collimator 101, and first
Cathode 104 includes the first filament, and the first cathode 104 connects the cathode and the first filament supply of the first high voltage power supply.The first anode
Including anode handle 400 towards the first part 401 of the first filament and setting in the first filament end of first part direction
The first target spot 102.First limit angle collimator 101 is substantially cylindrical in shape, first towards the first filament of coated anode handle 400
Divide 401, the bottom surface of the first limit angle collimator 101 towards the first filament is provided with first through hole, and the electronics of the first filament transmitting is worn
Crossing the first through hole excites first target spot 102 to generate the first initial X-ray fladellum.Fig. 4 is in Fig. 3 along the side B-B
To sectional view, first limit angle collimator 101 further include the first limit angle collimating slit 103, allow the first initial X-ray fladellum
At least part pass through, limit the subtended angle α ' of the first initial X-ray fladellum, it is fan-shaped to generate the first X-ray that subtended angle is α
Beam.
In some embodiments, the first limit angle collimating slit 103 intercepts the centre portion fan of the first initial X-ray fladellum
The pencil of forms is used as the first X-ray fladellum that subtended angle is α and exports, and ensures the uniformity of the first X-ray sector beam energy.
Second fan-beam light source 200 includes mainly the second cathode 204, second plate and the second limit angle collimator 201, and second
Cathode 204 includes the second filament, and the second cathode 204 connects the cathode and the second filament supply of the second high voltage power supply.Second plate
Including anode handle 400 towards the second part 402 of the second filament and setting in the second filament end of second part direction
The second target spot 202.Second limit angle collimator 201 is substantially cylindrical in shape, second towards the second filament of coated anode handle 400
Divide 401, the bottom surface of the second limit angle collimator 201 towards the second filament is provided with the second through-hole, and the electronics of the second filament transmitting is worn
Crossing second through-hole excites second target spot 202 to generate the second initial X-ray fladellum.With the first limit angle collimator
101 is identical, and the second also limit angle collimator 201 includes the second limit angle collimating slit 203, allows the second initial X-ray fladellum
At least part passes through, and limits the subtended angle β ' of the second initial X-ray fladellum, generates the second X-ray fladellum that subtended angle is β.
In some embodiments, the second limit angle collimating slit 203 intercepts the centre portion fan of the second initial X-ray fladellum
The pencil of forms is used as the second X-ray fladellum that subtended angle is β and exports, and ensures the uniformity of the second X-ray sector beam energy.
In one embodiment, the first limit angle collimator 101 and second limits angle collimator 201 for example, by using tungsten or tungsten alloy
Material is made, and red copper or Cu alloy material can also be used to be made, just complete radiation protection from X-ray source in this way, can
X-ray dose leakage channel can be reduced, the radiation protection pressure of whole set equipment is alleviated, ensure that operating personnel, tested person
The safety of member and the public.
Fig. 5 shows the ray fladellum schematic diagram that biparting beam X-ray source structure generates, as shown in (a) in Fig. 5, if
The subtended angle of no first limit angle collimator 101, then the first initial X-ray fladellum sent out by the first fan-beam light source 100 is α ', the
First initial X-ray fladellum is limited to subtended angle by one limit angle collimator 101 using the first limit angle collimating slit 103 thereon
The first X-ray fladellum of α, if same limit angle collimator 201, second sent out by the second fan-beam light source 200 without second
The subtended angle of initial X-ray fladellum is β ', and the second limit angle collimator 201 is using the second limit angle collimating slit 203 thereon by the
Two initial X-ray fladellums are limited to the second X-ray fladellum that subtended angle is β.(b) is the side view of (a) in Fig. 5, is only shown
First X-ray fladellum and the second X-ray fladellum, it is seen that the first X-ray fladellum and the second X-ray fladellum be in the side C
It is spaced a predetermined distance d upwards, the projection in the plane parallel with the two is adjacent but is not overlapped, and split is the fan that subtended angle is alpha+beta
Shape.
The structure in above-mentioned biparting beam X-ray source has smaller volume and weight, using the saturating of above-mentioned biparting beam X-ray source
Volume weight depending on scanning device can accordingly decline, easy to use, simplify system design and application.
In one embodiment, when biparting beam X-ray source 11 using the above structure, the double aperture slit in scanning device 10 is had an X-rayed
Collimator 12 uses structure as shown in FIG. 6, and Fig. 6 is the schematic diagram at the directions the A visual angle of double aperture slit collimator in Fig. 2, such as Fig. 6 institutes
Show, the first collimating slit 12a and the second collimating slit 12b are equally spaced a predetermined distance d on the directions C so that the first collimation is narrow
Stitch 12a allow the first X-ray fladellum by and collimate the first X-ray fladellum；Second collimating slit 12b allows the 2nd X to penetrate
Line fladellum by and collimate the second X-ray fladellum.Double aperture slit collimator 12 may be used radiation protection material and be made so that
Respectively by the first X-ray fladellum and the second X-ray fladellum of the first collimating slit 12a and the second collimating slit 12b outgoing
It does not interfere with each other.
It is the directions A of detector in Fig. 2 to have an X-rayed the detector 13 in scanning device 10 and use structure as shown in Figure 7, Fig. 7
The schematic diagram at visual angle, as shown in fig. 7, equally interval is predetermined on the directions C by the first probe portion 13a and the second probe portion 13b
Distance d, superposed first probe portion 13a receive the first X-ray fladellum, are located at the second probe portion 13b of lower part
Receive the second X-ray fladellum.
In one embodiment, the Narrow Flare Angle x-ray source of two routines may be used to splice instead of biparting beam X-ray source
Conclusion of the business large angle carries out perspective detection.
In some embodiments, negative high voltage power source, two flying spot light sources of round trip flight point X-ray machine 71 may be used in high voltage power supply
The same negative high voltage power source can be shared, different negative high voltage power sources can also be separately connected, i.e. the cathode of two flying spot light sources can
To be connected to same negative high voltage current potential, it can be respectively connected to different negative high voltage current potentials, anode handle can be directly grounded.It is described
The energy of first initial X-ray fladellum and the 2nd X initial ray fladellums is identical or different.X-ray tube and high voltage power supply can
To make separate structure, structure can also be made of one.Particularly, the high voltage parameter of above-mentioned high voltage power supply is adjustable, being capable of basis
Field demand is adjusted flexibly.
In one embodiment, perspective scanning device of the invention use modularized design, be broadly divided into X-ray source module,
Detector module, delivery module and automatically controlled display module, delicate structure take up little area, and are more advantageous to dismounting transport and peace tune dimension
It repaiies.
Further, perspective scanning device of the invention uses open channel, and tested 14 need of human body, which are stood firm, to be helped, nothing
It need to undress and take off one's shoes, you can internal and body surface contactless examination is rapidly completed, it is easy to use, securely and reliably.It can also be used
Either other patterns do not receive the limitations of the auxiliary devices such as inorganic shell, backboard or head cover to closed channel.
It should be noted that the shape and size of each component do not reflect actual size and ratio in attached drawing, and only illustrate of the invention real
Apply the content of example.
The direction term mentioned in embodiment, such as "upper", "lower", "front", "rear", "left", "right" etc. are only with reference to attached
The direction of figure is not used for limiting the scope of the invention.And above-described embodiment can based on the considerations of design and reliability,
The collocation that is mixed with each other is used using or with other embodiment mix and match, i.e., the technical characteristic in different embodiments can be free group
Conjunction forms more embodiments.
It should be noted that in attached drawing or specification text, the realization method for not being painted or describing is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to each element and method is simultaneously
It is not limited only to various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can carry out letter to it
It singly changes or replaces.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Describe in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the protection of the present invention
Within the scope of.
Claims (15)
1. a kind of perspective scanning device, wherein including：
Biparting beam X-ray source, for emitting the first X-ray fladellum and subtended angle that parallel or coplanar subtended angle is α to its homonymy
For the second X-ray fladellum of β, the first X-ray fladellum and the second X-ray fladellum are tested mesh for transmission scan
Mark, the projection split in the plane parallel with the two is the sector that subtended angle is alpha+beta；And
The exiting side in the first X-ray fladellum and the second X-ray fladellum in biparting beam X-ray source is arranged in detector,
Receive the first X-ray fladellum and the second X-ray fladellum.
2. perspective scanning device according to claim 1, wherein in the biparting beam X-ray source and the detector
Between position it is substantially aligned.
3. perspective scanning device according to claim 2, wherein the detector is divided into the first probe portion by centre position
Divide and the second probe portion, the first probe portion receive the first X-ray fladellum, the second probe portion receives described second
X-ray fladellum, and α=β.
4. perspective scanning device according to claim 3, wherein first probe portion is parallel to the first X-ray
The section of fladellum and the second X-ray fladellum is inType, second probe portion are parallel to the first X-ray sector
The section of beam and the second X-ray fladellum is inType.
Further include double aperture slit collimator 5. according to the perspective scanning device described in claim 3, the double aperture slit collimator packet
It includes：
First collimating slit, for passing through and collimating the first X-ray fladellum；And
Second collimating slit, for passing through and collimating the second X-ray fladellum.
6. according to the perspective scanning device described in claim 5, wherein the first X-ray of the first collimating slit shrinkage limit is fanned
The thickness of the pencil of forms, the thickness of the second collimating slit shrinkage limit the second X-ray fladellum.
7. according to any perspective scanning device in claim 1-6, wherein the biparting beam X-ray source uses an X
Ray tube, including：
Tube body；
First fan-beam light source and the second fan-beam light source, the both ends for the tubular body being respectively set are respectively used to the first X of transmitting and penetrate
Line fladellum and the second X-ray fladellum；
Anode handle is arranged between the first fan-beam light source and the second fan-beam light source, is the first fan-beam light source and the second fan-beam
Light source provides anode potential.
8. perspective scanning device according to claim 7, wherein
The first fan-beam light source includes：
First cathode, including the first filament, first cathode connect the first negative high voltage current potential and the first filament supply；
The first anode, including the first part of anode handle the first filament of direction and setting are in the first part the first lamp of direction
First target spot of silk end；
The second fan-beam light source includes：
Second cathode, including the second filament, second cathode connect the second negative high voltage current potential and the second filament supply；
Second plate, including the second part of anode handle the second filament of direction and setting are in the second part the second lamp of direction
Second target spot of silk end；
Wherein described first target spot and the second target spot are excited generates the first initial X-ray fladellum and the second initial X is penetrated respectively
Line fladellum.
9. perspective scanning device according to claim 8, wherein the first negative high voltage current potential and second negative high voltage
Current potential is same negative high voltage current potential, the anode handle ground connection.
10. perspective scanning device according to claim 8, wherein
The first fan-beam light source further includes：
First limit angle collimator, including the first limit angle collimating slit, allow at least part of the first initial X-ray fladellum logical
It crosses, generates the first X-ray fladellum；
The second fan-beam light source further includes：
Second limit angle collimator, including the second limit angle collimating slit, allow at least part of the second initial X-ray fladellum logical
It crosses, generates the second X-ray fladellum.
11. perspective scanning device according to claim 10, wherein it is described first limit angle collimator only allows first initially
The intermediate fan-beam part of X-ray fladellum passes through, and the second limit angle collimator only allows in the second initial X-ray fladellum
Between fan-beam part pass through.
12. perspective scanning device according to claim 8, wherein the first filament of first cathode, the first target spot,
The second filament and the second target spot of second cathode are arranged in the same of the first part and second part for being parallel to the anode handle
On one straight line.
13. according to any perspective scanning device in claim 1-6, wherein further include：
Bogey is arranged between the biparting beam X-ray source and detector, and being capable of phase for carrying measured target
For the biparting beam X-ray source and detector along perpendicular to the flat of the first X-ray fladellum and the second X-ray fladellum
It is moved in face.
14. perspective scanning device according to claim 13, wherein when measured target size is larger, the first X is penetrated
Line fladellum penetrates the first part of the measured target, and the second X-ray fladellum penetrates the second of the measured target
Part.
15. according to any perspective scanning device in claim 1-6, wherein further including：
Driving device, for controlling bogey relative to the biparting beam X-ray source and detector along perpendicular to the first X
It is moved in the plane of ray fladellum and the second X-ray fladellum；
Number device for picking carries out data acquisition to the signal that the detector detects；
Control process device, for the biparting beam X-ray source control and the data of acquisition being handled and are imaged；
And
Display device, for being shown to formed image.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445465.6A CN108459354A (en) | 2018-05-10 | 2018-05-10 | Have an X-rayed scanning device |
| PCT/CN2019/086399 WO2019214710A1 (en) | 2018-05-10 | 2019-05-10 | Dual beam scanning x-ray generator, transmission inspection device, human perspective composite inspection system, and inspection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810445465.6A CN108459354A (en) | 2018-05-10 | 2018-05-10 | Have an X-rayed scanning device |
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| Publication Number | Publication Date |
|---|---|
| CN108459354A true CN108459354A (en) | 2018-08-28 |
Family
ID=63215479
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810445465.6A Pending CN108459354A (en) | 2018-05-10 | 2018-05-10 | Have an X-rayed scanning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109407162A (en) * | 2018-12-24 | 2019-03-01 | 同方威视技术股份有限公司 | Inspection system and imaging method |
| WO2019214710A1 (en) * | 2018-05-10 | 2019-11-14 | 同方威视技术股份有限公司 | Dual beam scanning x-ray generator, transmission inspection device, human perspective composite inspection system, and inspection method |
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