CN208188366U - Binary channels back scattering detection device - Google Patents
Binary channels back scattering detection device Download PDFInfo
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- CN208188366U CN208188366U CN201820696345.9U CN201820696345U CN208188366U CN 208188366 U CN208188366 U CN 208188366U CN 201820696345 U CN201820696345 U CN 201820696345U CN 208188366 U CN208188366 U CN 208188366U
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Abstract
A kind of binary channels back scattering detection device comprising: round trip flight point X-ray machine, for emitting the first X-ray pencil beam and the second X-ray pencil beam to its two sides respectively；First passage and second channel are separately positioned on round trip flight point X-ray machine two sides, are respectively used to place the first tested target and the second tested target；And first detector and the second detector, first detector is arranged between the first passage and round trip flight point X-ray machine, for detecting first scattered signal of the first X-ray pencil beam through the first tested target scattering, second detector is arranged between the second channel and round trip flight point X-ray machine, for detecting second scattered signal of the second X-ray pencil beam through the second tested target scattering.
Description
Technical field
The utility model relates to safety inspection technical fields, and in particular to a kind of binary channels back scattering detection device is used for
Detect pedestrian, article or vehicle etc..
Background technique
X-ray back scattering imaging technology utilizes Compton scatter principle, and x-ray source and detector are placed in tested target
It is ipsilateral, the fladellum that x-ray source issues is modulated into pencil beam using flying spot scanning device, then collects tested object table in the same direction
The X-ray that layer scattering returns obtains the image on tested target surface layer, without contact after data acquisition and image procossing
Find the contraband concealed.The technology radiation amount dosage is low, and safety is good, sensitive to light material, has been widely used in
The security inspection field of human body, cargo and vehicle.
Known single channel unilateral side Time share scanning back scattering equipment, structure are simple, it is only necessary to a set of flying spot X-ray machine, detection
Device and transmission device, but scan efficiency is lower, and needs tested target overturning that could once complete bilateral scanning.
The known scanning backscattered equipment of single channel two-side synchronous arranges two sets of flying spot X-ray machines, spy on the both sides in a channel
Device and transmission device are surveyed, is scanned by the bilateral that tested target can be completed in single stroke.Although the mode scan efficiency improves
, but compared to unilateral time-shared fashion, the core components such as flying spot X-ray machine, detector, movement mechanism are doubled, especially
The general volume weight of flying spot X-ray machine is big and structure disperses, so just brings volume to increase to whole set equipment, cost improves, designs
The problems such as complicated and inconvenient for use.
It can be seen that channel-type scattering checks the prior art of equipment it is necessary to be improved and perfect, to lead to
Lesser space occupied, lighter weight, lower cost and better simply design are crossed, tested target is efficiently and quickly completed
Comprehensive examination.
Therefore, how to research and develop one kind and fast implement safety inspection, and the simple back scattering detection device of structure, become people
Urgent problem to be solved.
Utility model content
In view of above-mentioned technical problem, in order to overcome the above-mentioned deficiencies of the prior art, the utility model proposes a kind of bilaterals
Road back scattering detection device.
One aspect according to the present utility model provides a kind of binary channels back scattering detection device, comprising: round trip flight point X-ray
Machine, for emitting the first X-ray pencil beam and the second X-ray pencil beam to its two sides respectively；First passage and second channel, point
It She Zhi not be respectively used to place the first tested target and the second tested target in round trip flight point X-ray machine two sides；And first visit
Device and the second detector are surveyed, first detector is arranged between the first passage and round trip flight point X-ray machine, for visiting
First scattered signal of the first X-ray pencil beam through the first tested target scattering is surveyed, second detector is arranged in institute
It states between second channel and round trip flight point X-ray machine, is dissipated for detecting the 2nd X ray pencil beam through the second tested target
The second scattered signal penetrated.
In some embodiments, the binary channels back scattering detection device, further includes: transmission device drives described double
Flying spot X-ray machine or the first tested target and the second tested target are mobile, so that the first tested target and second is detected
Target is relative to the round trip flight point X-ray machine at the same time perpendicular on the direction of the first X-ray pencil beam and the second X-ray pencil beam
It is mobile.
In some embodiments, the transmission device and the round trip flight point X-ray machine, the first detector and the second detector are solid
Fixed connection setting, the round trip flight point X-ray machine, the first detector and the second detector can edges under the drive of the transmission device
The longitudinal length of the first passage and second channel is mobile.
It in some embodiments, is in the first predetermined angle between the first X-ray pencil beam and the second X-ray pencil beam
Degree.
In some embodiments, first predetermined angular is 180 °, and the first X-ray pencil beam is perpendicular to first
Tested target is relative to tested along scanning described first clockwise or counterclockwise in the plane of the round trip flight point X-ray machine moving direction
Target, the second X-ray pencil beam is in the putting down relative to the round trip flight point X-ray machine moving direction perpendicular to the second tested target
Along counterclockwise or clockwise scan the described second tested target on face.
In some embodiments, the energy of the first X-ray pencil beam and the second X-ray pencil beam is identical or different.
In some embodiments, the binary channels back scattering detection device, wherein further include: control device, for controlling
Make movement of the round trip flight point X-ray machine relative to the described first tested target and the second tested target；Number device for picking, to described the
The scattered signal that one detector and the second detector detect carries out data acquisition；And processing unit, for the bilateral
Back scattering detection device in road carries out control and carries out image procossing to the data of acquisition.
In some embodiments, the round trip flight point X-ray machine uses an X-ray tube, comprising: tube body；First flying spot light source and
Second flying spot light source, the both ends of respectively arranged tubular body, for emitting the first X-ray pencil beam and the second X-ray pen
The pencil of forms；Anode handle is arranged between the first flying spot light source and the second flying spot light source, is the first flying spot light source and the second flying spot
Light source provides anode potential.
In some embodiments, the first flying spot light source includes: the first cathode, including the first filament, first yin
Pole connects the first negative high voltage current potential and the first filament supply；The first anode, the first part including anode handle the first filament of direction
And first target spot of the first part towards the first filament end is set；The second flying spot light source includes: the second yin
Pole, including the second filament, second cathode connect the second negative high voltage current potential and the second filament supply；Second plate, including sun
The second part of pole handle the second filament of direction and the second target spot that the second filament end of the second part direction is set；Its
Described in the first target spot and the second target spot be excited and generate the first X-ray fladellum and the second X-ray fladellum respectively.
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 flying spot light source further include: the first protection rotating cylinder is sheathed on the anode handle
It can rotate in the first part and around the first part, the bottom surface of protection rotating cylinder towards first filament is provided with first
Light hole, so that the light of the first filament transmitting passes through first light hole and excites first target spot, first protection turns
It is provided with the first X-ray hole on the side wall of cylinder, so that the first X-ray fladellum is modulated into the first X-ray pencil beam；
The second flying spot light source further include: the second protection rotating cylinder is sheathed on the second part of the anode handle and can be around institute
Second part rotation is stated, the bottom surface of protection rotating cylinder towards second filament is provided with the second light hole, so that the second filament is sent out
The light penetrated passes through second light hole and excites second target spot, is provided with the 2nd X on the side wall of the second protection rotating cylinder
Beam orifice, so that the second X-ray fladellum is modulated into the second X-ray pencil beam.
In some embodiments, the quantity in first X-ray hole is one or more, second X-ray hole
Quantity is one or more.
In some embodiments, the first filament of first cathode, the first target spot, the second cathode the second filament and
Second target spot, which is arranged in, to be parallel in the first part of the anode handle and the same straight line of second part.
In some embodiments, the second target surface of the first target surface of first target spot and second target spot is substantially parallel
Setting, first target surface and the second target surface and the straight line have predetermined angle, so that the first X-ray fladellum and institute
State the second X-ray fladellum exiting parallel and the second predetermined angle that radially interlocks in the anode handle.
In some embodiments, the described second predetermined angle is 180 °.
One aspect according to the present utility model provides a kind of back scattering detection system, including more than two above-mentioned double
Channel back scattering detection device, wherein two binary channels back scattering detection device of arbitrary neighborhood shares a channel, the channel setting
Between the round trip flight point X-ray machine of the adjacent two binary channels back scattering detection device, the two sides of the tested target in the channel
It is located at the first X-ray pencil beam and the second X-ray pen shape beam scanning of the two sides round trip flight point X-ray machine of the tested target simultaneously.
It can be seen from the above technical proposal that the utility model has the following beneficial effects:
Using the binary channels back scattering detection device of the utility model, both direction is generated by a round trip flight point X-ray machine
The scanning single side of two tested targets in binary channels can be completed in substantially opposite X-ray pencil beam, a single direction stroke；
The binary channels back scattering detection device of the utility model, the efficiency phase compared with conventional one-channel bilateral back scattering equipment
Together, a set of flying spot X-ray machine and a sets of transmission mechanism but can be at least saved, structure is simple, low manufacture cost；
The round trip flight point X-ray machine that the binary channels back scattering detection device of the utility model uses is completed to radiate from X-ray source
Protection can replace two sets of conventional flying spot scanning devices, not only can simplify system and set without adding peripheral auxiliary device
Meter reduces using difficulty and reduces cost, can also substantially reduce the space occupied of itself and whole equipment of flying spot X-ray machine, have
Develop conducive to X-ray back scattering class equipment to miniaturization, intelligence and integrated direction；
Multiple binary channels back scattering detection devices can cascade use, form multiple inspection channels, in addition to outermost two
The tested target in channel needs to scan twice, the tested target of other inner passages only need to once can be completed bilateral scanning and at
Picture realizes quickly detection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of binary channels back scattering detection device in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the round trip flight point X-ray machine of the binary channels back scattering detection device of Fig. 1；
Round trip flight point X-ray machine forms the schematic diagram of two X-ray fladellums in Fig. 3 Fig. 2.
Specific embodiment
The utility model some embodiments will be done referring to appended attached drawing in rear and more comprehensively describe to property, some of but simultaneously
Not all embodiment will be shown.In fact, the various embodiments of the utility model can be realized in many different forms, without
It should be construed as limited to this several illustrated embodiment；Relatively, it theses embodiments are provided so that the utility model meets to be applicable in
Legal requirement.
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to attached drawing, the utility model is further described.
The utility model provides a kind of binary channels back scattering detection device, including round trip flight point X-ray machine, for respectively to it
Two sides emit the first X-ray pencil beam and the second X-ray pencil beam；First passage and second channel are separately positioned on described double
Flying spot X-ray machine two sides are respectively used to place the first tested target and the second tested target；And first detector and second detection
Device, first detector are arranged between the first passage and round trip flight point X-ray machine, penetrate for detecting the first X
First scattered signal of the line pencil beam through the first tested target scattering, second detector are arranged in the second channel and institute
It states between round trip flight point X-ray machine, believes for detecting the second X-ray pencil beam through the second scattering of the second tested target scattering
Number.Both direction base is generated by a round trip flight point X-ray machine according to binary channels back scattering detection device provided by the utility model
The scanning single side of two tested targets in binary channels can be completed in this opposite X-ray pencil beam, a single direction stroke.
Fig. 1 is the structural schematic diagram of binary channels back scattering detection device in an embodiment of the present invention, as shown in Figure 1,
An embodiment of the present invention provides a kind of binary channels back scattering detection device 1000, the binary channels back scattering detection device 1000
It mainly include round trip flight point X-ray machine 100, first passage 210, second channel 220 and the first detector 310 and the second detector
320。
Round trip flight point X-ray machine 100 emits the first X-ray pencil beam and the second X-ray pencil beam to its two sides respectively, and first is logical
Road 210 and second channel 220 are separately positioned on 100 two sides of round trip flight point X-ray machine, are respectively used to accommodate or place the first tested mesh
Mark 211 and the second tested target 221, and first passage 210, second channel 220 respectively include first base 212 and second base
222, first base 212 and second base 222 support accommodating respectively or are placed in first passage 210 and second channel 220
First tested target 211 and the second tested target 221.
First detector 310 is arranged between the first passage 210 and round trip flight point X-ray machine 100, described in detection
The first scattered signal that first X-ray pencil beam is scattered through the first tested target 211, the setting of the second detector 320 is described the
Between two channels 220 and round trip flight point X-ray machine 100, for detecting the second X-ray pencil beam through the second tested target
Second scattered signal of 221 scatterings.
As shown in Figure 1, to set 1000 further include transmission device 400 for binary channels back scattering detection, in one embodiment, accommodating the
The first tested target 211 in one channel 210 and to be accommodated in the second tested target 212 in second channel 220 fixed, it is double
Flying spot X-ray machine 100, the first detector 310 and the second detector 320 are fixed at transmission device 400, and transmission device 400 can
To drive round trip flight point X ray machine 100, the first detector 310 and the second detector 320 along both perpendicular to the first X-ray pencil beam
It is mobile with the direction (i.e. the longitudinal length of first passage 210 and second channel 220) of the second X-ray pencil beam.Transmission dress
Setting 400 can be using form designs such as sliding rail, wheel tracks.
In one embodiment, round trip flight point X-ray machine 100 generate two towards its two sides emit the first X ray pencil beam and
Second X-ray pencil beam can scan two tested targets in two channels simultaneously.First X-ray pencil beam and the 2nd X are penetrated
Phase difference of the line pencil beam on rotation round can be 180 °, at this time when the first X-ray pencil beam is along the first tested target
211 from top to bottom scanning one column, i.e. the first X-ray pencil beam when being scanned clockwise or counterclockwise on its ray scanning face, with
Its second reversed X-ray pencil beam scans a column, i.e. the second X-ray pen along the second tested target 221 simultaneously from the bottom up
The pencil of forms scans counterclockwise or clockwise on its ray scanning face, the not mutual train of signal of such two scan operations
It disturbs.By control, a scan period of round trip flight point X-ray machine 100 can complete a column interlacing to two tested targets.
Cooperate transmission device 400 to drive the translational motion of round trip flight point X-ray machine 100, may be implemented to be completed at the same time by column to two tested mesh
Target scanning single side.
It in some embodiments, can be fixed with round trip flight point X-ray machine 100 and the first detector 310 and the second detector 320
It is motionless, drive the first tested target 211 and the second tested target 221 to translate relative to round trip flight point X-ray machine 100 using transmission device
Movement, such as a transmission device is set in first passage 210 and second channel 220 respectively and drives the first tested 211 He of target
Second tested target 221 is along direction (the i.e. first passage both perpendicular to the first X-ray pencil beam and the second X-ray pencil beam
210 and second channel 220 longitudinal length) it is mobile.
In one embodiment, binary channels back scattering detection device 1000 further include control device 500, number device for picking 600 with
And processing unit 700.As shown in Figure 1, control device 500 controls the round trip flight point X-ray machine 100 relative to the described first tested mesh
The movement of mark 211 and the second tested target 221, and control round trip flight point X-ray machine 100 and issue the first X-ray pencil beam and/or second
X-ray pencil beam, and the first X-ray pencil beam of control and the second X-ray pen shape beam energy size, scanning speed etc..Control
Device 500 can also control the initial position, direction of rotation and scan period of two X-ray pencil beams.Number 600 pairs of institutes of device for picking
It states the scattered signal that the first detector 210 and the second detector 220 detect and carries out data acquisition, the first detector 210 and the
Two detectors 220 separately detect the scattered signal returned by stating the first tested target 211 and the second tested target 221, and turn
It is changed to electric signal transmission and gives number device for picking 600.700 logarithm device for picking 600 of processing unit acquisition data carry out data analysis with
Processing, then shows the backscatter images of two tested targets.Visible image can be looked into manually to differentiate whether there is or not dangerous material, it can also
To pass through software automatic identification and be identified and alarmed.
In one embodiment, 1000 single sweep operation of binary channels back scattering detection device completes sweeping for two tested target sides
It retouches, is scanned if you need to bilateral, then run-down again after needing tested target to overturn 180 °.Tested target can actively be overturn, can also
To be overturn by electromechanical assembly, can also be realized by the mobile device circumferentially recycled.
An embodiment of the present invention also provides a kind of back scattering detection system, carries on the back including binary channels described in two or more
Detection device is scattered, wherein two binary channels back scattering detection device of arbitrary neighborhood shares a channel, and channel is arranged described adjacent
Between the round trip flight point X-ray machine of two binary channels back scattering detection devices, the two sides of the tested target in channel are located at described simultaneously
The the first X-ray pencil beam and the second X-ray pen shape beam scanning of the two sides round trip flight point X-ray machine of tested target.I.e. multiple binary channels
Back scattering detection device can cascade use, form multiple inspection channels, in addition to the tested target in two channels of outermost needs
Twice, bilateral scanning and imaging only need to once can be completed in the tested target of other inner passages for scanning, realize quickly detection.
The specific structure of round trip flight point X-ray machine and work side in binary channels back scattering detection device 1000 are introduced in detail below
Formula.
Fig. 2 is the structural representation of the round trip flight point X-ray machine of binary channels back scattering detection device in an embodiment of the present invention
Figure.As shown in Fig. 2, round trip flight point X-ray machine 100 includes X-ray tube and high voltage power supply, wherein X-ray tube includes tube body 30, and first
Flying spot light source 10 and the second flying spot light source 20 and anode handle 40, the quantity of high voltage power supply can be with one or two.
Tube body 30 is the long tubular tube body of a substantial symmetry, the first flying spot light source 10 and the second flying spot light source 20, difference
The both ends of the tubular body of setting, for emitting the first X-ray pencil beam and the second X-ray pencil beam.
Anode handle 40 is arranged between the first flying spot light source 10 and the second flying spot light source 20, is in inverted " t " type structure, can connect
The anode of two high voltage power supplies provides anode potential for the first flying spot light source 10 and the second flying spot light source 20.Anode handle 40 is adopted
It is made of metal material, for example, by using red copper or copper alloy.
First flying spot light source 10 mainly includes the first cathode 11, the first anode and the first protection rotating cylinder 13, the first cathode
11 include the first filament, and the first cathode 11 connects the cathode and the first filament supply of the first high voltage power supply.The first anode includes sun
Pole handle 40 towards the first filament first part 41 and the first target of the first part towards the first filament end is set
Point 12, the first protection rotating cylinder 13 are cylindrical in shape structure, are sheathed in the first part 41 of the anode handle and can be around described
First part's rotation, the bottom surface that the first protection turns 13 the first filaments of direction are provided with first through hole, the electricity of the first filament transmitting
Son passes through the first through hole and first target spot 12 is excited to generate the first X-ray fladellum.The side of first protection rotating cylinder 13
The first X-ray hole 131 is provided on wall, so that the first X-ray fladellum is modulated into the first X-ray pencil beam, for being examined
The scanning of target.
First protection rotating cylinder 13 is equivalent to an outer-rotor structure, several first armatures of coiling on the first armature core 14
Winding 15 is set in the first part 41 of anode handle 40, several first armature winding 15 can be circumferential in first part 41
On be uniformly distributed or uneven distribution, the inner wall of the first protection rotating cylinder 13 fastens several the first permanent magnets 16, several first
Permanent magnet 16 is uniformly distributed in the circumferential direction of the inner wall of the first protection rotating cylinder 13 or uneven distribution.First protection rotating cylinder 13 is separate
The inner wall of one end of the first filament passes through the rotatable connection of first part 41 of first bearing 17 and anode handle 40.Several first
Armature winding 15 is powered by driving period constantly commutation and forms rotating excitation field, with magnetic caused by several first permanent magnets 16
Field interactions pushes the first protection rotating cylinder 13 to move in a circle.So pass through the first X on the first protection 13 side wall of rotating cylinder
X-ray fladellum is modulated into the continuous pencil beam of dynamic by 131 rotary motion of beam orifice.
In some embodiments, the first armature core 14 and several first armature winding 15 can be set in the first protection
On the inner wall of rotating cylinder 13, and several first permanent magnets 16 are arranged in the first part 41 of anode handle 40.
Second flying spot light source 20 mainly includes the second cathode 21, second plate and the second protection rotating cylinder 23, the second cathode
21 include the second filament, and the second cathode 21 connects the cathode and the second filament supply of the second high voltage power supply.Second plate includes sun
Pole handle 40 towards the first filament second part 42 and the second target of the second part towards the second filament end is set
Point 22, the second protection rotating cylinder 23 are cylindrical in shape structure, are sheathed on the second part 42 of the anode handle and can be around described
Second part rotation, the bottom surface that the second protection turns 23 the second filaments of direction are provided with the second through-hole, the electricity of the second filament transmitting
Son passes through second through-hole and second target spot 22 is excited to generate the second X-ray fladellum.The side of second protection rotating cylinder 23
The second X-ray hole 231 is provided on wall, so that the second X-ray fladellum is modulated into the second X-ray pencil beam, for being examined
The scanning of target.
Second protection rotating cylinder 23 is equivalent to an outer-rotor structure, several second armatures of coiling on the second armature core 24
Winding 25 is set on the second part 42 of anode handle 40, several second armature winding 25 can be circumferential in second part 42
On be uniformly distributed or uneven distribution, the inner wall of the second protection rotating cylinder 23 fastens several the second permanent magnets 26, several second
Permanent magnet 26 is uniformly distributed in the circumferential direction of the inner wall of the second protection rotating cylinder 13 or uneven distribution.Second protection rotating cylinder 23 is separate
The inner wall of one end of the second filament passes through the rotatable connection of second part 42 of second bearing 27 and anode handle 40.Several second
Armature winding 25 is powered by driving period constantly commutation and forms rotating excitation field, with magnetic caused by several second permanent magnets 26
Field interactions pushes the second protection rotating cylinder 23 to move in a circle.So pass through the 2nd X on the second protection 23 side wall of rotating cylinder
X-ray fladellum is modulated into the continuous pencil beam of dynamic by 231 rotary motion of beam orifice.
In some embodiments, the second armature core 24 and several second armature winding 25 can be set in the second protection
On the inner wall of rotating cylinder 23, and several second permanent magnets 26 are arranged on the second part 41 of anode handle 40.
In one embodiment, anode handle 40 further includes the end 43 being arranged perpendicular to first part 41 and second part 42.
It end 43 can be to be hollow, for being laid with the cabling of driving the first armature winding 15 and the second armature winding 25, at the top of end 43
Fill seal nipple.
In one embodiment, at least one of the first protection rotating cylinder 13 and the second protection rotating cylinder 23 can use tungsten or tungsten
Alloy material plays Study On The Radioprotective.
The land occupation that flying spot X-ray machine itself and whole equipment can substantially be reduced using the round trip flight point X-ray machine of above-mentioned design is empty
Between, be conducive to X-ray back scattering class equipment and develop to miniaturization, intelligence and integrated direction.
In one embodiment, the second filament of the first filament of first cathode 11, the first target spot 12, the second cathode 21
And second target spot 22 be arranged in and be parallel in the first part 41 of the anode handle 40 and the same straight line of second part 42.The
The substantially parallel setting of the second target surface of first target surface of one target spot 12 and second target spot 21, direction is on the contrary, first target
Face and the second target surface and the straight line have predetermined angle, so that the first X-ray fladellum and second X-ray are fan-shaped
Beam exiting parallel and the anode handle radially interlock the second predetermined angle, such as can be 180 °.
Fig. 3 shows the schematic diagram that an embodiment of the present invention round trip flight point X-ray machine forms two X-ray fladellums, such as
Shown in Fig. 3, the first target spot 12 be stimulated generate it is upward perpendicular to the first part 41 of anode handle 40 and 42 axis of second part
First X-ray fladellum, the first target spot 22 be stimulated generate perpendicular to anode handle 40 42 axis of first part 41 and second part
The first part of the second downward X-ray fladellum of line, the first X-ray fladellum and the second X-ray fladellum along anode handle 40
41 and second part 42 it is radial parallel, and exit direction is opposite.Pass through the first protection rotating cylinder 13 of control and the second protection rotating cylinder
23 rotation, the second X-ray hole 231 through the first X-ray hole 131 and the second protection rotating cylinder 23 on the first protection rotating cylinder 13
Modulation, can obtain 180 ° of phase difference of X-ray pencil beam.
In some embodiments, high voltage power supply can use negative high voltage power source, two flying spot light of round trip flight point X-ray machine 71
Source can share the same negative high voltage power source, can also be separately connected different negative high voltage power sources, the i.e. cathode of two flying spot light sources
Can connect can be respectively connected to different negative high voltage current potentials to same negative high voltage current potential, and anode handle 40 can be directly grounded.
The energy of the first X-ray pencil beam and the second X-ray pencil beam is identical or different.
In some embodiments, the first X-ray hole 131 on round trip flight point X-ray machine 100 and the 2nd X beam orifice 231 are turning
Relative phase difference during dynamic may be controlled to 180 °, also may be controlled to other suitable angles, the first X-ray hole 131
It may be 1 or more with 231 quantity of the second X-ray hole.
In some embodiments, two X-ray pencil beams caused by round trip flight point X-ray machine 100 are respectively independent, can distinguish
Control, flexibly uses according to system requirements.
In some embodiments, two X-ray pencil beam can also additional flying spot be swept respectively by two Conventional X-ray tubes
Mechanism is retouched to realize.
The utility model is intended to generate two kinds of X-ray pencil beams backwards by single round trip flight point X-ray machine, can sweep simultaneously
Retouch the tested target of host two sides.The auxiliary such as inorganic shell, backboard or top cover dress can not be received to be open perhaps closed
The limitation set.
The binary channels back scattering of the utility model checks that equipment is not limited by round trip flight point X-ray machine position, subtended angle and energy,
Can arbitrarily it be arranged.
The tested target of the utility model can be any human body, cargo or vehicle etc..
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 this practical new
The content of type embodiment.
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 to limit the protection scope of the utility model.And above-described embodiment can be based on design and reliability
Consider, the collocation that is mixed with each other is used using or with other embodiments mix and match, i.e., the technical characteristic in different embodiments can be with
Freely form more embodiments.
It should be noted that in attached drawing or specification text, the implementation 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 specific 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 into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that the foregoing is merely specific embodiment of the utility model, are not limited to this reality
With novel, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all include
It is within the protection scope of the utility model.
Claims (16)
1. a kind of binary channels back scattering detection device, including:
Round trip flight point X-ray machine, for emitting the first X-ray pencil beam and the second X-ray pencil beam to its two sides respectively；
First passage and second channel are separately positioned on round trip flight point X-ray machine two sides, are respectively used to place the first tested target
With the second tested target；And
First detector and the second detector, first detector are arranged in the first passage and round trip flight point X-ray machine
Between, for detecting first scattered signal of the first X-ray pencil beam through the first tested target scattering, second detection
Device is arranged between the second channel and round trip flight point X-ray machine, for detecting the second X-ray pencil beam through the second quilt
Examine the second scattered signal of target scattering.
2. binary channels back scattering detection device according to claim 1, further includes:
Transmission device drives the round trip flight point X-ray machine or the first tested target and the second tested target mobile, so that institute
The first tested target and the second tested target are stated relative to the round trip flight point X-ray machine at the same time perpendicular to the first X-ray pencil beam
It is moved on the direction of the second X-ray pencil beam.
3. binary channels back scattering detection device according to claim 2, wherein the transmission device and the round trip flight point X-ray
Machine, the first detector and the second detector are fixedly connected with setting, the round trip flight point X-ray machine, the first detector and the second detector
It can be moved along the longitudinal length of the first passage and second channel under the drive of the transmission device.
4. binary channels back scattering detection device according to claim 2, wherein the first X-ray pencil beam and the 2nd X
It is in the first predetermined angular between ray pencil beam.
5. binary channels back scattering detection device according to claim 4, wherein first predetermined angular is 180 °, institute
State the first X-ray pencil beam edge on perpendicular to plane of the first tested target relative to the round trip flight point X-ray machine moving direction
The described first tested target is scanned clockwise or counterclockwise, and the second X-ray pencil beam is perpendicular to the second tested target phase
For in the plane of the round trip flight point X-ray machine moving direction along counterclockwise or clockwise scan the described second tested target.
6. binary channels back scattering detection device according to any one of claims 1-4, wherein the first X-ray pen shape
The energy of beam and the second X-ray pencil beam is identical or different.
7. binary channels back scattering detection device according to any one of claims 1-4, wherein further include:
Control device, for controlling shifting of the round trip flight point X-ray machine relative to the described first tested target and the second tested target
It is dynamic；
Number device for picking carries out data acquisition to the scattered signal that first detector and the second detector detect；And
Processing unit, for carrying out control to the binary channels back scattering detection device and being carried out at image to the data of acquisition
Reason.
8. binary channels back scattering detection device according to any one of claims 1-4, wherein the round trip flight point X-ray machine is adopted
With an X-ray tube, comprising:
Tube body；
First flying spot light source and the second flying spot light source, the both ends of respectively arranged tubular body, for emitting the first X-ray pen
The pencil of forms and the second X-ray pencil beam；
Anode handle is arranged between the first flying spot light source and the second flying spot light source, is the first flying spot light source and the second flying spot
Light source provides anode potential.
9. binary channels back scattering detection device according to claim 8, wherein
The first flying spot 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 anode handle towards the first part of the first filament and setting in the first lamp of first part's direction
First target spot of silk end；
The second flying spot 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 anode handle towards the second part of the second filament and setting in the second lamp of the second part direction
Second target spot of silk end；
Wherein first target spot and the second target spot are excited generates the first X-ray fladellum and the second X-ray fladellum respectively.
10. binary channels back scattering detection device according to claim 9, wherein the first negative high voltage current potential with it is described
Second negative high voltage current potential is same negative high voltage current potential, the anode handle ground connection.
11. binary channels back scattering detection device according to claim 9, wherein
The first flying spot light source further include:
First protection rotating cylinder, is sheathed in the first part of the anode handle and can rotate around the first part, described
The bottom surface of protection rotating cylinder towards the first filament is provided with the first light hole, leads to so that the light of the first filament transmitting passes through described first
Unthreaded hole excites first target spot, the first X-ray hole is provided on the side wall of the first protection rotating cylinder, so that the first X
Ray fladellum is modulated into the first X-ray pencil beam；
The second flying spot light source further include:
Second protection rotating cylinder, is sheathed on the second part of the anode handle and can rotate around the second part, described
The bottom surface of protection rotating cylinder towards the second filament is provided with the second light hole, leads to so that the light of the second filament transmitting passes through described second
Unthreaded hole excites second target spot, the second X-ray hole is provided on the side wall of the second protection rotating cylinder, so that the 2nd X
Ray fladellum is modulated into the second X-ray pencil beam.
12. binary channels back scattering detection device according to claim 11, wherein the quantity in first X-ray hole is
One or more, the quantity in second X-ray hole is one or more.
13. the binary channels back scattering detection device according to claim 9 or 11, wherein the first lamp of first cathode
Silk, the second filament of the first target spot, the second cathode and the second target spot be arranged in the first part for being parallel to the anode handle and
On the same straight line of second part.
14. binary channels back scattering detection device according to claim 13, wherein the first target surface of first target spot and
The substantially parallel setting of the second target surface of second target spot, first target surface and the second target surface and the straight line have pre- clamp
Angle so that the first X-ray fladellum and the second X-ray fladellum exiting parallel and the anode handle radially
Staggeredly the second predetermined angle.
15. binary channels back scattering detection device according to claim 14, wherein the second predetermined angle is 180 °.
16. a kind of back scattering detection system, including the binary channels back scattering inspection any in more than two claim 1-15
Measurement equipment, wherein two binary channels back scattering detection device of arbitrary neighborhood shares a channel, and the channel is arranged described adjacent two
Between the round trip flight point X-ray machine of binary channels back scattering detection device, the two sides of the tested target in the channel are located at described simultaneously
The the first X-ray pencil beam and the second X-ray pen shape beam scanning of the two sides round trip flight point X-ray machine of tested target.
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| CN108594317A (en) * | 2018-05-10 | 2018-09-28 | 同方威视技术股份有限公司 | Binary channels back scattering detection device |
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