CN106053499A - X-ray examination system and method - Google Patents
X-ray examination system and method Download PDFInfo
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- CN106053499A CN106053499A CN201610576774.8A CN201610576774A CN106053499A CN 106053499 A CN106053499 A CN 106053499A CN 201610576774 A CN201610576774 A CN 201610576774A CN 106053499 A CN106053499 A CN 106053499A
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- detector
- radiographic source
- door frame
- inspection system
- collimator
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/18—Investigating the presence of flaws defects or foreign matter
Abstract
The invention discloses an X-ray examination system. The X-ray examination system comprises a portal frame, an X-ray source, a plurality of collimators, a detector, a controller and an image generation module, wherein the X-ray source is used for emitting X-ray beams and located on the portal frame and can move on the portal frame; the collimators are used for calibrating the X-ray beams emitted by the X-ray source to form effective X-ray beams, are separated from the X-ray source and are independently mounted on the portal frame; the detector is used for receiving the effective X-ray beams and converting the effective X-ray beams into output signals and is arranged in a pit at the lower part of the portal frame; the controller is connected with the detector and the X-ray source; the image generation module is used for receiving the output signals of the detector to generate transmission images of an examined object.
Description
Technical field
The present invention relates to a kind of ray inspection system and radiological survey X method, particularly to large-sized object (such as aircraft)
Ray inspection system and radiological survey X method for inspected object.
Background technology
At present, for container truck, dilly, air container/pallet, the radiological survey X of through transport pallet cargo
System is a lot, and the radiographic source of this inspection system is typically small with the distance of detector, it is ensured that the effective rays that radiographic source sends
The difficulty that bundle covers detector is relatively low, but, along with the distance of radiographic source range finder increases, effective rays to be realized
Bundle covers the difficulty of detector and is greatly increased.The imaging arrangement of general large-scale ray inspection system is by radiographic source, collimator, detection
Device forms, and detector is the biggest with radiogenic distance, and collimator is the least apart from radiogenic distance, radiogenic position error quilt
The multiple amplified is the biggest, causes the non-coplanar of effective rays bundle and detector, it is impossible to realize the image scanning of tested object.And
And, the height of tested object, the increase of width, in addition to increasing the distance of radiographic source and detector, also increase radiographic source and
The span of detector bogey, along with the increase of bogey span, the weight of carrier own and external environment (such as wind
Power, temperature, humidity, sleet etc.) more and more higher to deformation, walking and the positioning accuracy request of bogey.
In the prior art, it is proposed that some the large-scale inspected object of such as aircraft is carried out radiological survey X system and
Method.
In a kind of prior art, use inspection system based on back scattering principle.Back scattering principle be by radiographic source and
Detector is placed in the homonymy of checking matter, and the X/Gamma particle that radiographic source is launched incides checking matter, and a part of particle is tested
Thing absorbs；Unabsorbed particle then scatters with checking matter, and when angle of scattering is less than 90 degree, scattered photon penetrates tested
Thing, when angle of scattering is more than 90 degree, scattered photon is shot back from incident side.Backscattering technique is exactly by radiographic source and detector
It is placed in the homonymy of checking matter, to detect the angle of scattering back scattering photon more than 90 degree.But, back scattering checks the radial energy of system
Measuring low, penetration power is not enough, it is impossible to penetrate wing and fuselage carries out completely and thoroughly checking.Particularly at checking matter close to ray
In the case of source position is low Z-material, ray and low Z-material generation large angle scattering, a lot of particles are shot back, it is impossible to be deep into
Inside checking matter, it is impossible to testing in depth testing.For Airplane detection, back scattering series products is typically based on moveable vehicle-mounted flat
Platform, it is impossible to comprehensively check all sites of aircraft, such as higher away from ground (empennage) or relatively low (bottom of public affair aircraft)
Position.
In another kind of prior art, aircraft is checked by system to use vehicular to check, but the inspection of such vehicular
There are the following problems to look into system: the emittance of (1) radioactive source is low, and penetration capacity is weak, poor image quality；(2) need before inspection
Be laid on the ground by detector, detector surface is not coplanar with ground, defines a surface being similar to deceleration strip, example
As having fluctuating and instability when the inspected object of aircraft is moved through, image easily can be caused overlapping；(3) it is being scanned inspection
When looking into work, owing to radiation source and detector move inconvenience, so checking the wing of aircraft or checking that volume is bigger
Need mobile load car telescopic arm or mobile load car during aircraft, need radiation source and detector to realign, very after movement
Time-consuming.
In another prior art, employ a kind of moving door frame formula and check system, but this moving door frame formula inspection system
There are the following problems for system: the motionless door frame of (1) inspected object moves, and causes radioactive source and detector to need same in the two directions
Shi Yidong, poor synchronization and also efficiency is low；(2) at undercarriage, detector cannot be introduced into, and needs by changing radioactive source
Direction solves, and the angle that changes radioactive source is the most time-consuming but also there may be scan blind spot.
Accordingly, it would be desirable to the ray inspection system of a kind of improvement and radiological survey X method.
Summary of the invention
For above-mentioned one or more problems of the prior art, the present invention proposes a kind of ray inspection system and ray
Inspection method, it can large-scale inspected object to such as aircraft be scanned checking efficiently, there is not scan blind spot, and
And ensure that the high-quality scanogram of acquisition.
According to an aspect of the invention, it is provided a kind of ray inspection system, including:
Door frame；
Radiographic source, is used for sending beam, and described radiographic source is positioned on described door frame and can move on described door frame；
Multiple collimators, for calibrating beam that described radiographic source sends to form effective beam, the plurality of standard
Straight device is separately positioned with described radiographic source and is independently arranged on described door frame；
Detector, is used for receiving described effective rays bundle and being converted into output signal, and described detector is arranged on described door
In trench below frame；
Controller, described controller is connected with described detector and described radiographic source；
Image generation module, for receiving the output signal of described detector to generate the transmission image of inspected object.
Preferably, at least three degree of freedom of the plurality of collimator can be individually adjusted, so that each is accurate
Straight device is all positioned at common perpendicular with described detector.
Preferably, described door frame being provided with the first rail plate, described radiographic source is arranged on described first rail plate
On.
Preferably, being provided with the second rail plate in described trench, described detector is arranged on described second rail plate
On.
Preferably, described detector synchronously can move with described radiographic source；Described controller controls described radiographic source
Along described first rail plate to a side shifting to precalculated position, and control described detector along described second slide lead
Rail is synchronously to this side shifting to position corresponding with this precalculated position, thus carries out the described side of described inspected object
Penetrate inspection.
Preferably, described door frame is provided with a pair first rail plates, bottom described radiogenic frame, is provided with one
To the first wheels, the pair of first round group is separately positioned on the pair of first rail plate.
Preferably, described door frame is additionally provided with positioning guide rail, at described positioning guide rail and described radiogenic frame ground
Being provided with guiding mechanism between portion, described guiding mechanism includes directive wheel, eccentric shaft and locking mechanism, described eccentric shaft and described
Directive wheel is connected by bearing, between the rotation of described eccentric shaft can regulate between described directive wheel and described positioning guide rail
Gap, to realize described radiographic source location on described positioning guide rail.
Preferably, the bottom of described detector being provided with the second wheels, described detector is set by described second wheels
Put on described second rail plate；Described detector side is provided with chain, sprocket wheel and motor, described chain and described chain
Wheel engagement, described motor can drive described sprocket wheel to rotate.
Preferably, the length of described detector is less than or equal to 1/2nd of door frame width.
Alternately, described detector is fixed in trench.
Preferably, described door frame has rail plate, it is allowed to described radiographic source moves along rail plate；Described controller
Control described radiographic source along rail plate to a side shifting, thus the described side of described inspected object is carried out transmission inspection
Look into.
Wherein, the length of described detector is more than or equal to the width 2/3rds of described door frame.
Preferably, described radiographic source sends the first beam of the first energy and the second beam of the second energy, described
Detector receives the first beam and the second beam, described image generation module receive described detector output signal thus
Generate the dual-energy transmission images of inspected object.
Preferably, described detector includes the first detection array making a response the Part I in a beam and sets
The second detection array put below the first detection array and make a response the Part II of this beam, described image is raw
Module is become to receive described first detection array and the output signal of the second detection array thus to generate the dual intensity of inspected object saturating
Penetrate image.
Preferably, described radiographic source sends the first angle beam and the second angle beam, and described detector bag
Include the first angle detection array and second jiao being arranged on the most at predetermined intervals in respective trench with door frame
Degree detection array, receives the first angle beam and the second angle beam penetrating inspected object respectively, and described image is raw
Become module to receive described first angle detection array and the output signal of the second angle detection array thus generate inspected object
Double-visual angle transmission image.
Preferably, the height of described door frame is adjustable.
According to a further aspect in the invention, it is provided that a kind of radiological survey X method, wherein, ray inspection system includes ray
Multiple collimators, detector, controller and the image generation module that source is separately positioned with described radiographic source；Described radiological survey X
Method comprises the steps:
Detector is made to move to the precalculated position corresponding with the first collimator in multiple collimators；
Adjust at least one degree of freedom of described first collimator, so that this first collimator is positioned at described detector
In common vertical plane；
Make detector move to the precalculated position corresponding with other collimator successively, be sequentially adjusted in other collimator at least
One degree of freedom, so that other collimator is all positioned at common vertical plane with described detector；
Described radiographic source is made to be synchronously moved to first pre-determined bit corresponding with a described collimator with described detector
Put, increase radiographic source exit curtain width, adjust at least one degree of freedom in radiographic source simultaneously, so that radiographic source, collimation
Device and detector three are positioned at common vertical plane；
Control radiographic source and send beam；
Control detector receive beam and be converted into output signal；
Control image generation module and generate the transmission image of inspected object.
Preferably, described radiological survey X method also comprises the steps: to control described radiographic source to a side shifting to second
Precalculated position, and control described detector synchronously to this side shifting to this corresponding position, the second precalculated position, thus
The described side of described inspected object is carried out transmission inspection.
According to a further aspect in the invention, it is provided that a kind of ray inspection system, including:
Door frame；
Multiple radiographic sources, are used for sending beam, and the plurality of radiographic source is fixedly mounted on described door frame；
Multiple collimators, the plurality of collimator is corresponding with the plurality of radiographic source respectively, is used for calibrating corresponding ray
The beam that source sends is to form effective beam, and the plurality of collimator is all separately positioned with described radiographic source and the most only
Stand and be arranged on described door frame；
Detector, is used for receiving described effective rays bundle and being converted into output signal, and described detector is not put at described door
In trench below frame；
Controller, described controller is connected with described detector and described radiographic source；
Image generation module, for receiving the output signal of described detector to generate the transmission image of inspected object.
Preferably, described detector can move to corresponding with the plurality of radiographic source multiple respectively in described trench
Precalculated position；Or described detector is fixed in trench.
In ray inspection system according to embodiments of the present invention and radiological survey X method, by using collimator and ray
The scheme that source is separately positioned, independently installed three collimators on door frame, the independently installed of three collimators is prone to and detects accordingly
In the same plane, radiographic source by correcting with collimator, increases the width of main beam exit curtain simultaneously, makes effective rays device again
Restraint coplanar with collimator, detector, it is achieved the image scanning of inspected object.So can effectively solve the problem that for main equipment
Inspection system in, along with the distance of radiographic source and detector increases, effective rays bundle covers the difficulty of detector and is greatly increased
Problem, and effectively reduce radiographic source position error amplification.
Further, since radiographic source and detector only do the linear motion on same direction on guide rail, such as it is perpendicular to
The direction of aircraft moving direction, it is easy to control synchronicity good.Additionally, detector is arranged in trench, aircraft can be directly from upper
Side passes through, and saves and there is not yet scan blind spot sweep time.And detector is arranged in trench, detector surface or detection
Device cover sheet upper surface is coplanar with ground, when aircraft passes through above detector, stable without rising and falling.Additionally, entering
During the work of row scanography, radiographic source and detector can very easily carry out synchronizing moving, can quickly check aircraft
Wing and the bigger aircraft of volume.
Accompanying drawing explanation
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in further detail, wherein:
Fig. 1 is the front view of the ray inspection system for aircraft according to an embodiment of the invention；
Fig. 2 is the top view of the ray inspection system for aircraft according to an embodiment of the invention；
Fig. 3 is the side view of the ray inspection system for aircraft according to an embodiment of the invention；
Fig. 4 is showing of the radiographic source the illustrating ray inspection system according to an embodiment of the invention annexation with door frame
It is intended to；
Fig. 5 is the structural representation illustrating the guiding mechanism of ray inspection system according to an embodiment of the invention；
Fig. 6 is the enlarged drawing of the part A in Fig. 3 of the travel mechanism of the detector being shown in trench；
Fig. 7 shows the flow chart of radiological survey X method according to an embodiment of the invention.
Detailed description of the invention
The specific embodiment of the present invention is described more fully below, it should be noted that the embodiments described herein is served only for citing
Illustrate, be not limited to the present invention.In the following description, in order to provide thorough understanding of the present invention, elaborate a large amount of spy
Determine details.It will be apparent, however, to one skilled in the art that: these specific detail need not be used to carry out this
Bright.In other instances, in order to avoid obscuring the present invention, do not specifically describe known structure, circuit, material or method.
Throughout the specification, " embodiment ", " embodiment ", " example " or " example " is mentioned meaning
: the special characteristic, structure or the characteristic that combine this embodiment or example description are comprised at least one embodiment of the present invention.
Therefore, in the phrase " in one embodiment " of each local appearance, " in an embodiment ", " example " of entire disclosure
Or " example " is not necessarily all referring to same embodiment or example.Furthermore, it is possible to any suitable combination and/or sub-portfolio by specific
Feature, structure or property combination in one or more embodiments or example.Additionally, those of ordinary skill in the art should manage
Solving, term "and/or" used herein includes any and all combination of one or more relevant project listed.
According to the scheme of some embodiments, radiographic source and detector are laid respectively at above and below airframe, penetrates
Line source produces X/Gamma ray, penetrates tested aircraft, and detector array accepts X/Gamma ray and is converted into output signal, and real
Time ground produce overlook transmission image.
Fig. 1 to 3 is respectively the front view of the ray inspection system for aircraft according to an embodiment of the invention, bows
View and side view.As Figure 1-3, this ray inspection system is gantry type ray inspection system, and it includes door frame 1, ray
Source 10, collimator 20, detector 30, controller (not shown) and image generation module (not shown).As example, this ray is examined
Look into the inspected object of system by aircraft 2.
Wherein, radiographic source 10, for example, x-ray source or Gamma radiographic source, it is used for sending beam.An enforcement
In example, radiographic source 10 is positioned on door frame 1 and can move back and forth on door frame 1 such that it is able to move to different pre-determined bit
Put and send downwards beam, check with the different parts to aircraft.
The beam that collimator 20 sends for calibrating radiographic source 10 to form effective beam, this effective rays bundle by with
Aircraft 2 is carried out ray scanning.Specifically, the quantity of collimator 20 can be multiple, i.e. two, three, four even more
Multiple, three collimators 20 shown in the example that illustrates in the drawings.In traditional ray inspection system, radiographic source and collimator
All it is wholely set.And in an embodiment of the present invention, multiple collimators 20 are all separately positioned with radiographic source 10 and independently
It is arranged on door frame 1.In such manner, it is possible to collimation device 20 is adjusted independently, it is easy to accomplish collimator 20 and corresponding detection
Device 30 is positioned at same vertical plane.
Detector 30 is used for receiving described effective rays bundle and being converted into output signal, as it can be seen, detector 30 is arranged
In trench 3 below door frame, such as in the trench 3 below ground shown in Fig. 1, this trench 3 and described effective rays bundle
Coplanar.
Controller is connected with detector 30 and radiographic source 10, and radiographic source 10 sends beam, collimator 20 is calibrated in control
Beam and control detector 30 and receive the ray penetrating examined aircraft 2 that radiographic source 10 sends, obtains output signal.
Image generation module for example, tomography computer, it receives described output signal, and produces based on described output signal described
The transmission image of examined aircraft 2.
Combine the annexation of attached Figure 4 and 5 explanation radiographic source 10 and door frame 1 further below.Fig. 4 is to illustrate according to this
The radiographic source of the ray inspection system of bright embodiment and the schematic diagram of the annexation of door frame, Fig. 5 is to illustrate according to the present invention
The structural representation of guiding mechanism of ray inspection system of embodiment.As shown in Figure 4, radiographic source 10 has radiographic source frame
11, door frame 1 is provided with a pair first rail plates 12, is provided with a pair first wheels bottom radiographic source frame 11 and (does not shows
Go out), this pair first round group is separately positioned on a pair first rail plates 12, under the drive of motor (not shown), penetrates
Line source 10 can move on door frame 1 along the first rail plate 12.Further, in order to ensure that radiographic source 10 can be at door frame 1
The first rail plate 12 on smoothly move, as shown in Figure 4, door frame 1 is additionally provided with positioning guide rail 13, at positioning guide rail 13
And it is provided with guiding mechanism between bottom radiographic source frame 11.The concrete structure of this guiding mechanism is as it is shown in figure 5, this guiding mechanism
Connected by bearing including directive wheel 16, eccentric shaft 14 and locking mechanism 15, eccentric shaft 14 and directive wheel 16, turning of eccentric shaft 14
Kinetic energy enough regulates the gap between directive wheel 16 and positioning guide rail 13, to realize radiographic source frame 11 determining on positioning guide rail 13
Position.As such, it is possible to after the gap (for horizontal clearance in Fig. 5) regulated between directive wheel 16 and positioning guide rail 13, pass through
Motor drives radiographic source 10 to move on door frame 1 along the first rail plate 12, it is thus possible to ensure the smooth movement of radiographic source 10.
Further, radiographic source 10 needs mobile to three pre-determined bit corresponding with 3 shown in Fig. 1 collimator 20
Put, travel switch can be respectively provided with in these three precalculated position, when radiographic source 10 moves to a certain precalculated position, trigger phase
The travel switch answered sends signal, now controller can control radiographic source 10 motor stop drive radiographic source 10 move,
Thus radiographic source 10 is accurately positioned in this pre-position.
Referring back to Fig. 1,3 collimators 20 all separate with radiographic source 10, and are separately arranged on door frame 1.
Specifically, at least three degree of freedom of each collimator 20 can be individually adjusted, so that each collimator 20
It is positioned at common perpendicular with detector 30.In one example, this three degree of freedom can be two translation freedoms
With a rotary freedom.
The situation that detector 30 is arranged in trench 3 is described in detail below in conjunction with Fig. 6.Fig. 6 is shown in trench
The enlarged drawing of the part A in Fig. 3 of the travel mechanism of detector, shown in Fig. 3 and 6, is provided with the second slip and leads in trench 3
Rail 31, the bottom of detector 30 is provided with the second wheels 32, and detector 30 is arranged on the second slip by the second wheels 32 and leads
On rail 31.Further, detector 30 side is provided with chain sprocket mechanism 34 and motor 35, and motor 35 is by chain turbine
Structure 34 drives detector 30 to move back and forth on the second rail plate 31.
Ray inspection system according to above-described embodiment can carry out following radiological survey X method, as shown in Figure 7:
S101, make detector 30 move to in multiple collimators 20 first collimator (such as Fig. 1 is positioned at centre
Collimator) corresponding precalculated position；
S102, adjust at least one degree of freedom of described first collimator 20, so that this first collimator 20 and detection
Device 30 is in common vertical plane；
S103, make detector 30 move to the precalculated position corresponding with other collimator 20 successively, be sequentially adjusted in other accurate
At least one degree of freedom of straight device 20 so that other collimator 20 all with described detector 30 in common vertical plane；
S104, make radiographic source 10 and detector 30 move to a collimator (such as Fig. 1 is positioned at centre collimation
Device) corresponding the first precalculated position, increase radiographic source 10 exit curtain width, adjust simultaneously in radiographic source 10 at least one from
By spending, so that radiographic source 10, collimator 20 and detector 30 three are positioned at common vertical plane；
S105, control radiographic source 10 send beam；
S106, control detector 30 receive beam and are converted into output signal；
S107, control image generation module generate the transmission image of inspected object.
If needing other position to aircraft 2 (the left side wing in such as Fig. 1) to check, it is also possible to carry out as follows
Step:
S108, control radiographic source 10 are mobile to the second precalculated position to side (left side in such as Fig. 1), and control to visit
Survey device 30 synchronously to this side shifting to this corresponding position, the second precalculated position, thus the described side of aircraft 2 is carried out
Penetrate inspection.
Further, if needing other position to aircraft 2 (the right side wing in such as Fig. 1) to check, also may be used
To carry out following steps:
S109, control radiographic source 10 are mobile to the 3rd precalculated position to side (right side in such as Fig. 1), and control to visit
Survey device 30 synchronously to this side shifting to the 3rd corresponding position, precalculated position, thus the described side of aircraft 2 is carried out
Penetrate inspection.
As can be seen here, in ray inspection system according to the abovementioned embodiments of the present invention and radiological survey X method, pass through
Use the scheme that collimator is separately positioned with radiographic source, independently installed three collimators on door frame, the independence peace of three collimators
Dress is prone to corresponding detector in the same plane, and radiographic source by correcting with collimator, increases main beam exit curtain more simultaneously
Width, make effective rays bundle and collimator, detector coplanar, it is achieved the image scanning of inspected object.So can be effective
Solving in the inspection system of main equipment, along with the distance of radiographic source with detector increases, effective rays bundle covers to be visited
Survey the problem that the difficulty of device is greatly increased, and effectively reduce the amplification of radiographic source position error.
Further, since radiographic source and detector only do the linear motion on same direction on guide rail, such as it is perpendicular to
The direction of aircraft moving direction, it is easy to control synchronicity good.Additionally, detector is arranged in trench, aircraft can be directly from upper
Side passes through, and saves and there is not yet scan blind spot sweep time.And detector is arranged in trench, detector surface or detection
Device cover sheet upper surface is coplanar with ground, when aircraft passes through above detector, stable without rising and falling.Additionally, entering
During the work of row scanography, radiographic source and detector can very easily carry out synchronizing moving, can quickly check aircraft
Wing and the bigger aircraft of volume.
According to above-described embodiment, when being scanned examined aircraft 2, radiographic source 10 produces high energy X/Gamma ray
Pulse, penetrates examined aircraft 2, and it is also converted into output signal by highly-sensitive detector array received X/Gamma ray.When
At the end of whole scanning process, image generation module automatically generates the complete transmission image of tested aircraft.
The radiographic source used in above-described embodiment is linear accelerator (or other types radiographic source), passes through steel supporting structure
Being fixed on aerial, detector array is placed in the trench coplanar with radiographic source line.Aircraft is unmanned state, drags dress
Put towing aircraft through ray line, and ensure that plane nondestructive is hindered by actuator.Detector receives the X/ through aircraft
Gamma ray is converted into output signal.At the end of whole scanning process, image generation module will generate the scanning figure of aircraft
Picture.If the line subtended angle of accelerator can not once cover whole aircraft, for ensure to the scanning of whole aircraft (fuselage, wing and
Empennage), radiographic source 10 and detector 30 can be perpendicular on aircraft moving direction respectively in the door frame and trench of steel frame construction
Do the movement of geo-stationary to scan the different parts of aircraft.Radiographic source 10 is one, two or more position (such as Fig. 1 institute
Three positions shown) aircraft is scanned, to complete the scanning to whole fuselage, detector follows radiographic source synchronizing moving,
Ensure that it is always at corresponding position below accelerator.In the embodiment shown in fig. 1, past with aircraft for detector cost
Return scanning times balance consider, the length of detector can be set smaller than or equal to door frame 1 width 1/2nd,
Such as the length of detector is arranged to door frame 1 width 1/3rd or 1/4th.It is much smaller than in this detector length
In the case of the width of door frame, increase the round scanning times of aircraft and just can complete the scanography of whole aircraft.
Alternately, in another embodiment, detector 30 can whole be fixed among trench 3, not in trench
Slide.In this case, owing to detector is integrally fixed in trench, not in trench slide, in order to complete right
The perspective scanning of whole aircraft, it should the length of detector is set greater than or equal to 2/3rds of door frame 1 width, or
Substantially equal with the width of door frame.
Alternately, in another embodiment, check speed faster to obtain, line can be set on door frame 1
Three coplanar radiographic sources, separately down emitting x-ray or Gamma beam.In other embodiments, the skill of this area
Art personnel can arrange less or more radiographic source according to different application.For example, it is possible to only arrange two radiographic sources, with
Cost-effective.
In certain embodiments, radiographic source 10 sends the first beam of the first energy and the second ray of the second energy
Bundle, if the first beam is 3MeV low energy ray bundle, the second beam is 6MeV or 9MeV energy beam.And detector 30 connects
Receive the first beam and the second beam.In this case image generation module receives the first detection array and the second detection array
Output signal thus generate the dual-energy transmission images of examined aircraft 2.In this case, image generates mould and exports examined flying
The dual intensity image of machine.
In certain embodiments, detector 30 includes the different piece of a beam is made corresponding multiple detectors
Array, such as, include the first detection array and setting that the Part I to beam (part as relatively low in energy) makes a response
Made a response below the first detector array and to the Part II (part as higher in energy) of same beam
Two detection arrays.In this case, image generation module receives described first detection array and the output of the second detection array
Signal thus generate the dual-energy transmission images of examined aircraft 2.In this case, image generation module 111 output is examined
The pseudo-dual intensity image of aircraft.
In certain embodiments, radiographic source 10 sends the first angle beam and the second angle beam, and detector
30 include the first angle detection array and being arranged on the most at predetermined intervals in respective trench with door frame 1
Two angle detection arrays, receive the first angle beam and the second angle beam penetrating examined aircraft 2 respectively, and image is raw
Become module to receive the first angle detection array and the output signal of the second angle detection array thus generate the double of examined aircraft 2
Visual angle transmission image.
In certain embodiments, the height of door frame 1 is adjustable.
Although ray inspection system and the radiological survey X method of the present invention are carried out for example by above-described embodiment with aircraft
Illustrate, but, one skilled in the art would recognize that the ray inspection system of the present invention and radiological survey X method are not limited to fly
The inspection of machine, it is also possible to large-scale not for checking to other, protection scope of the present invention is limited by claim and equivalent thereof
Fixed.
Although exemplary embodiment describing the present invention with reference to several, it is to be understood that, term used is explanation and shows
Example and nonrestrictive term.Owing to the present invention can be embodied as the spirit without deviating from invention or reality in a variety of forms
Matter, it should therefore be appreciated that above-described embodiment is not limited to any aforesaid details, and the spirit that should be limited in appended claims
Explain widely with in scope, therefore fall into the whole changes in claim or its equivalent scope and remodeling all should be the power of enclosing
Profit requires to be contained.
Claims (20)
1. a ray inspection system, including:
Door frame；
Radiographic source, is used for sending beam, and described radiographic source is positioned on described door frame and can move on described door frame；
Multiple collimators, for calibrating beam that described radiographic source sends to form effective beam, the plurality of collimator
Separately positioned with described radiographic source and be independently arranged on described door frame；
Detector, is used for receiving described effective rays bundle and being converted into output signal, and described detector is arranged under described door frame
In the trench of side；
Controller, described controller is connected with described detector and described radiographic source；
Image generation module, for receiving the output signal of described detector to generate the transmission image of inspected object.
2. ray inspection system as claimed in claim 1, wherein, at least three degree of freedom of the plurality of collimator can be by
It is independently adjustable, so that each collimator is positioned at common perpendicular with described detector.
3. ray inspection system as claimed in claim 1 or 2, wherein, described door frame is provided with the first rail plate, described
Radiographic source is arranged on described first rail plate.
4. ray inspection system as claimed in claim 3, wherein, is provided with the second rail plate, described spy in described trench
Survey device to be arranged on described second rail plate.
5. ray inspection system as claimed in claim 4, wherein, described detector synchronously can move with described radiographic source
Dynamic；
Described controller control described radiographic source along described first rail plate to a side shifting to precalculated position, and control
Described detector along described second rail plate synchronously to this side shifting to position corresponding with this precalculated position, thus right
The described side of described inspected object carries out transmission inspection.
6. ray inspection system as claimed in claim 3, wherein, described door frame is provided with a pair first rail plates, institute
Stating and be provided with a pair first wheels bottom radiogenic frame, it is sliding that the pair of first round group is separately positioned on the pair of first
On dynamic guide rail.
7. ray inspection system as claimed in claim 6, wherein, described door frame is additionally provided with positioning guide rail, described fixed
Being provided with guiding mechanism between bottom position guide rail and described radiogenic frame, described guiding mechanism includes directive wheel, eccentric shaft
With locking mechanism, described eccentric shaft and described directive wheel are connected by bearing, the rotation of described eccentric shaft can regulate described in lead
Gap between wheel and described positioning guide rail, to realize described radiographic source location on described positioning guide rail.
8. ray inspection system as claimed in claim 4, the bottom of described detector is provided with the second wheels, described detection
Device is arranged on described second rail plate by described second wheels；Described detector side is provided with chain, sprocket wheel and electricity
Motivation, described chain and described sprocket engagement, described motor can drive described sprocket wheel to rotate.
9. the ray inspection system as described in claim 4 or 5, wherein, the length of described detector is less than or equal to door frame width
/ 2nd of degree.
10. ray inspection system as claimed in claim 1, wherein said detector is fixed in trench.
11. ray inspection system as claimed in claim 10, wherein said door frame has rail plate, it is allowed to described radiographic source
Move along rail plate；
Described controller controls described radiographic source along rail plate to a side shifting, thus to described in described inspected object
Side carries out transmission inspection.
12. ray inspection system as claimed in claim 10, the length of wherein said detector is more than or equal to described door frame
Width 2/3rds.
13. ray inspection system as claimed in claim 1 or 2, wherein said radiographic source sends the first ray of the first energy
Bundle and the second beam of the second energy, described detector receives the first beam and the second beam, and described image generates mould
Block receives the output signal of described detector thus generates the dual-energy transmission images of inspected object.
14. ray inspection system as claimed in claim 1 or 2, wherein said detector includes first in a beam
The first detection array of making a response of part and be arranged on below the first detection array and the Part II of this beam is done
Going out the second detection array of reaction, described image generation module receives described first detection array and the output of the second detection array
Signal thus generate the dual-energy transmission images of inspected object.
15. ray inspection system as claimed in claim 1 or 2, wherein said radiographic source sends the first angle beam and
Two angle beams, and described detector includes being arranged on the most at predetermined intervals respective trench with door frame
In the first angle detection array and the second angle detection array, receive respectively and penetrate the first angle beam of inspected object
With the second angle beam, the described image generation module described first angle detection array of reception and the second angle detection array
Output signal thus generate the Double-visual angle transmission image of inspected object.
16. ray inspection system as claimed in claim 1 or 2, the height of wherein said door frame is adjustable.
17. 1 kinds of radiological survey X methods, wherein, ray inspection system includes that radiographic source is separately positioned with described radiographic source many
Individual collimator, detector, controller and image generation module；Described radiological survey X method comprises the steps:
Detector is made to move to the precalculated position corresponding with the first collimator in multiple collimators；
Adjust at least one degree of freedom of described first collimator, so that this first collimator and described detector are positioned at jointly
Vertical plane in；
Make detector move to the precalculated position corresponding with other collimator successively, be sequentially adjusted in other collimator at least one
Degree of freedom, so that other collimator is all positioned at common vertical plane with described detector；
Make described radiographic source be synchronously moved to first precalculated position corresponding with a described collimator with described detector, increase
Big radiographic source exit curtain width, adjusts at least one degree of freedom in radiographic source simultaneously, so that radiographic source, collimator and spy
Survey device three and be positioned at common vertical plane；
Control radiographic source and send beam；
Control detector receive beam and be converted into output signal；
Control image generation module and generate the transmission image of inspected object.
18. radiological survey X methods as claimed in claim 17, also comprise the steps:
Control described radiographic source to a side shifting to the second precalculated position, and control described detector synchronously to this side shifting
Extremely with this corresponding position, the second precalculated position, thus the described side of described inspected object is carried out transmission inspection.
19. 1 kinds of ray inspection system, including:
Door frame；
Multiple radiographic sources, are used for sending beam, and the plurality of radiographic source is fixedly mounted on described door frame；
Multiple collimators, the plurality of collimator is corresponding with the plurality of radiographic source respectively, is used for calibrating corresponding radiographic source and sends out
The beam gone out is to form effective beam, and the plurality of collimator is all separately positioned with described radiographic source and independently pacifies
It is contained on described door frame；
Detector, is used for receiving described effective rays bundle and being converted into output signal, and described detector is arranged under described door frame
In the trench of side；
Controller, described controller is connected with described detector and described radiographic source；
Image generation module, for receiving the output signal of described detector to generate the transmission image of inspected object.
20. ray inspection system as claimed in claim 19, wherein, described detector can move to dividing in described trench
The multiple precalculated positions the most corresponding with the plurality of radiographic source；Or described detector is fixed in trench.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610576774.8A CN106053499B (en) | 2016-07-20 | 2016-07-20 | Ray inspection system and radiological survey X method |
| ARP170101969A AR109058A1 (en) | 2016-07-20 | 2017-07-14 | RAY INSPECTION SYSTEM AND RAY INSPECTION METHOD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610576774.8A CN106053499B (en) | 2016-07-20 | 2016-07-20 | Ray inspection system and radiological survey X method |
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| CN106053499A true CN106053499A (en) | 2016-10-26 |
| CN106053499B CN106053499B (en) | 2019-07-05 |
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| CN (1) | CN106053499B (en) |
| AR (1) | AR109058A1 (en) |
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Also Published As
| Publication number | Publication date |
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| CN106053499B (en) | 2019-07-05 |
| AR109058A1 (en) | 2018-10-24 |
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