CN109686469A - Collimator and double-visual angle imaging system - Google Patents
Collimator and double-visual angle imaging system Download PDFInfo
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- CN109686469A CN109686469A CN201710979539.XA CN201710979539A CN109686469A CN 109686469 A CN109686469 A CN 109686469A CN 201710979539 A CN201710979539 A CN 201710979539A CN 109686469 A CN109686469 A CN 109686469A
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- Prior art keywords
- collimator
- stud
- vertical arm
- double
- shield
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/02—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diaphragms, collimators
Abstract
The invention discloses a kind of collimator and double-visual angle imaging systems.Collimator includes slidable mounting base and adjustment portion, and adjustment portion includes the plane of incidence and exit facet being disposed opposite to each other, and the first line seam and the second line seam, the setting of mounting base slip are offered in adjustment portion, and adjustment portion is rotatably installed in mounting base.Double-visual angle imaging system includes radiation source and collimator and probe assembly, and probe assembly includes the first detector group and the second detector group；First detector group includes multiple detectors, and the second detector group includes multiple detectors；Outlet setting of the first detector group towards the first line seam；Outlet setting of the second detector group towards the second line seam.Collimator provided by the invention and double-visual angle imaging system, reduce the size of collimator, reduce the manufacture difficulty of collimator, reduce the space that collimator occupies scanning system, promote the modularization and fining of scanning system, simplify adjustment process.
Description
Technical field
The present invention relates to scanning imaging technology field more particularly to a kind of collimators and double-visual angle imaging system.
Background technique
The multiple objects arranged along the direction of the launch of flying spot can not be differentiated accurately in single-view scanning technique
Out, double-visual angle image scanning technology carries out Multidirectional sweeping detection to object by two beams flying spot in a certain angle, real
The resolution techniques of more overlapped object imagings are showed.
In the prior art, two collimators are arranged in double-visual angle image scanning technology generally between radiation source and detector,
Two collimators are separately mounted on two collimator columns, and a line seam, radiation source hair are offered in each collimator
Being pierced by after the adjustment that two lines stitch from collimator after collimated scanning ray out, emits after scanned object to be detected
Electric signal is formed on to detector.By adjusting the angles and positions of two collimators respectively, opened up on the collimator with adjustment
Line seam position and angle.Inventor has found that above-mentioned double-visual angle imaging scanner is adjusted during realizing invention
Flying spot has the disadvantage that first, due to having certain angle between two beam scanning rays, and two collimators are generally set
Set apart from radiation source remote position, to avoid interfering, however two beam scanning rays are fan-shaped, with collimator away from
Increase with a distance from radiation source, the projection of flying spot on the collimator is also longer, and the length of line seam is also inevitably
Increase, causes the size of collimator also larger, the size of collimator is larger, not only increases the difficulty of manufacture, and occupy
The big quantity space of scanning system where collimator is unfavorable for the modularization and fining development of scanning system；The second, when needing to adjust
When the angles and positions of whole flying spot, two collimators need respectively repeatedly adjustment, just flying spot can be made accurately incident
To the sensitive volume of detector, adjustment process complexity.
Therefore, it is necessary to solve above-mentioned technical problem.
Summary of the invention
The present invention provides a kind of collimator and double-visual angle imaging system, to solve problems of the prior art, reduces
The size of collimator reduces the manufacture difficulty of collimator, reduces the space that collimator occupies scanning system, promotes scanning system
Modularization and fining simplify adjustment process.
The present invention provides a kind of collimators, comprising: slidable mounting base；Adjustment portion, the adjustment portion is rotatably
It is mounted in the mounting base, the adjustment portion includes the plane of incidence and exit facet being disposed opposite to each other, and is offered in the adjustment portion
First line seam and the second line seam, the entrance that the entrance of first line seam is stitched with second line be respectively positioned on described in enter
Face is penetrated, the outlet of the first line seam and the outlet of second line seam are respectively positioned on the exit facet.
Optionally, button-head hinge is installed in the mounting base, one end of the adjustment portion by the button-head hinge with
The mounting base rotation connection.
Optionally, the collimator further includes sliding rack, and the sliding rack includes mounting surface, and the mounting base is slippingly
It is arranged on the mounting surface.
Optionally, the collimator further includes the first adjusting stud and second adjusts stud, is equipped on the mounting surface
It is located at the first adjustable plate and the second adjustable plate of the two sides of the mounting base；The first spiral shell is offered on first adjustable plate
Pit offers the second threaded hole on second adjustable plate, after the first adjusting stud is fed through first threaded hole
It is connected in the mounting base；The second adjusting stud is connected in the mounting base after being fed through second threaded hole.
Optionally, the adjustment portion includes ontology, installation the first shield on the body, secondary shielding body and the
Three shields；It is limited between first shield and the third shield and forms ray channel, the secondary shielding position
In the ray channel；It is limited between first shield and the secondary shielding body and forms the first line seam, institute
It states to limit between secondary shielding body and the third shield and forms the second line seam.
Optionally, first shield and the third shield are along the extending direction perpendicular to the ray channel
Slippingly it is arranged on the body.
Optionally, the secondary shielding body can slide along the extending direction of the ray channel.
Optionally, water conservancy diversion through-hole is offered on the ontology, first line sews up mouth and sews up with second line
Mouth is arranged towards the water conservancy diversion through-hole.
Based on the same inventive concept, the present invention also provides a kind of double-visual angle imaging system, including radiation source and to take up an official post
Collimator described in meaning one, further includes: probe assembly, the probe assembly include the first detector group and the second detector
Group；The first detector group and the second detector group include multiple detectors；Appointing in the first detector group
The outlet setting that the test surface of a detector of anticipating is stitched towards first line；It is any one in the second detector group
The test surface of a detector is arranged towards the outlet that second line stitches.
Optionally, the probe assembly further includes vertically disposed vertical beam and crossbeam, is adjustably mounted at the vertical beam
On the first vertical arm and the second vertical arm and the first transverse arm and the second transverse arm that are adjustably mounted on the crossbeam；It is described
Multiple detectors in first detector group are distributed on first transverse arm and first vertical arm, the second detector group
Interior multiple detectors are distributed on second transverse arm and second vertical arm.
Optionally, first vertical arm and second vertical arm extend in the same direction, first transverse arm and second transverse arm
Between angle be acute angle.
Optionally, the angle between first transverse arm and second transverse arm is 5 °.
Optionally, the both ends of the vertical beam are connected separately with connector and substrate, and the both ends of first vertical arm respectively can
It is rotationally mounted on the connector and the substrate, the both ends of second vertical arm are respectively rotatably mounted on the company
On fitting and the substrate.
Optionally, the double-visual angle imaging system further includes pedestal, fastening stud, third adjusting stud and the 4th adjusting spiral shell
Column；The pedestal is connected to the lower part of first vertical arm, is equipped on the substrate and is located at the of the pedestal two sides
One sliding plate and the second sliding plate offer bar shaped waist hole, first sliding plate and second sliding plate on the pedestal
It is each perpendicular to the extending direction of the bar shaped waist hole, the fastening stud is removably mounted on after being fed through the bar shaped waist hole
On the substrate；Third threaded hole is offered on first sliding plate, offers the 4th threaded hole on second sliding plate；
The third is adjusted after stud is fed through the third adjustment hole and is abutted on the base, and the 4th adjusting stud is fed through
It is abutted on the base after 4th adjustment hole.
Optionally, the double-visual angle imaging system further includes limit stud；The first end of first vertical arm is provided with perpendicular
Arm lower flange, the pedestal offer arc on the vertical arm lower flange between the vertical arm lower flange and the substrate
Waist hole, the limit stud are removably mounted on the pedestal after being fed through the arc waist hole；The vertical arm lower flange
On be provided with shaft, open up fluted on the pedestal, the shaft can be rotatably set in the groove；The curved waist
The arc core in hole is located at the central axis of the shaft.
Collimator provided by the invention and double-visual angle imaging system, by being integrated with the first line seam and the in adjustment portion
Two lines seam, reduces the size of collimator, reduces the manufacture difficulty of collimator；By adjustment portion relative to the whole of mounting base
Body rotation, the setting of mounting base slip can adjust the flying spot projected from the first line seam and the second line seam relative to spy
The positional relationship of device is surveyed, the space of the scanning system occupied when reducing collimator adjustment promotes the modularization and essence of scanning system
Refinement, simplifies adjustment process.The first vertical arm and the second vertical arm on vertical beam can be rotatably set, move in left-right direction
It is dynamic, being aligned for detector on the detector and the second vertical arm of the first vertical arm and flying spot may be implemented；On crossbeam
First transverse arm and the second transverse arm can be rotated along cross beam translation and around shaft, to realize the first transverse arm and the second cross
Detector on arm aligns with flying spot, easy to adjust, and imaging effect is good.
Detailed description of the invention
Preferred embodiment in attached drawing the present invention is described in detail will be passed through below, it will help understand the purpose of the present invention and excellent
Point, in which:
Fig. 1 is the structural schematic diagram that collimator provided in an embodiment of the present invention is obliquely installed.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the structural schematic diagram of the cross section B-B in Fig. 1.
Fig. 4 is the structural schematic diagram of the collimator provided in an embodiment of the present invention with partial sectional view
Fig. 5 is the partial enlarged view of F in Fig. 4.
Fig. 6 is the perspective view of collimator provided in an embodiment of the present invention.
Fig. 7 is the top view of double-visual angle imaging system provided in an embodiment of the present invention.
Fig. 8 is the schematic diagram of internal structure of double-visual angle imaging system provided in an embodiment of the present invention.
Fig. 9 is the structural schematic diagram of the cross section A-A in Fig. 8.
Figure 10 is the structural schematic diagram of vertical beam provided by the invention.
Figure 11 is the partial enlarged view of G in Figure 10.
Figure 12 is the structural schematic diagram of the crossbeam provided in an embodiment of the present invention for being provided with the first transverse arm and the second transverse arm.
Specific embodiment
It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc.
Positional terms are defined relative to each construction shown in the drawings, and word "inner" and "outside" refer respectively to direction or remote
From the direction of geometric center of specific component, they are opposite concepts, and it is therefore possible to can different location, difference according to locating for it
Use state and correspondingly changed.So also these or other positional terms should not be construed to restricted use
Language.
Fig. 1 is the structural schematic diagram that collimator provided in an embodiment of the present invention is obliquely installed, and Fig. 2 is the left view of Fig. 1,
Fig. 3 is the structural schematic diagram of the cross section B-B in Fig. 1.
As shown in Figure 1 to Figure 3, the present invention provides a kind of collimators, comprising: adjustment portion 1 and mounting base 2.
Fig. 1 to Fig. 3 is please referred to, adjustment portion 1 is rotatably installed in the mounting base 2, and adjustment portion 1 includes being disposed opposite to each other
The plane of incidence 13 and exit facet 14.The first line seam 15 and the second line seam 16 are offered in adjustment portion 1, the first line seam 15
The entrance of entrance and the second line seam 16 is respectively positioned on the plane of incidence 13, the outlet and the outlet of the second line seam 16 of the first line seam 15
It is respectively positioned on exit facet 14.The first line seam 15 and the second line seam 16 are integrated in adjustment portion 1 simultaneously, not only avoids two standards
The problem of straight device interferes, and the distance between collimator and radiation source 9 are shortened, the size of collimator is reduced, is dropped
The low manufacture difficulty of collimator, reduces the space that collimator occupies scanning system.
Fig. 4 is the structural schematic diagram of the collimator provided in an embodiment of the present invention with partial sectional view, and Fig. 5 is F in Fig. 4
Partial enlarged view, Fig. 6 be collimator provided in an embodiment of the present invention perspective view.
Referring to Fig. 1 to Fig. 6, the setting of 2 slip of mounting base to adjust the angles and positions of adjustment portion 1, makes first
The entrance of line seam 15 and the entrance of the second line seam 16 can be covered to collimated scanning ray, to guarantee respectively from first
The two beam scanning rays that line seam 15 and the second line seam 16 are worn out are incident on the sensitive volume of detector.Herein to collimated scanning
Ray refers to being issued by radiation source 9, the part flying spot before entering collimator.Wherein, one end of adjustment portion 1 can
To be rotatably mounted in mounting base 2 by button-head hinge 22, after adjustment portion 1 rotates by a certain angle, passed through to collimated scanning ray
The sensitive volume of detector is incident on after 16 adjustment of first line seam 15 and the second line seam, the position in secured adjusted portion 1 is at this time
It can.
Further, collimator further includes sliding rack 3, and sliding rack 3 includes mounting surface 31, and mounting base 2 is slippingly arranged
On mounting surface 31.When through collimator flying spot and detector sensitive volume in left and right directions (in Fig. 2 where arrow D
Direction) on when glancing off, by adjusting mounting base 2 in the enterprising line slip of mounting surface 31, may be implemented that adjustment portion 1 is whole to exist
Movement on left and right directions, so that the change in location of flying spot in the lateral direction is realized, so that flying spot can enter
It is mapped to the sensitive volume of detector.
As shown in Fig. 2, this gives the specific embodiments that adjusting mounting base 2 slides in mounting surface 31: collimation
Device further includes that the first adjusting stud 32 and second adjusts stud 33, is equipped with the two sides for being located at mounting base 2 on mounting surface 31
The first adjustable plate 34 and the second adjustable plate 35.
First, which adjusts stud 32, second, adjusts first tune of stud 33, the first adjustable plate 34 and the formation of the second adjustable plate 35
Device is saved, offers the first threaded hole on the first adjustable plate 34, the second threaded hole is offered on the second adjustable plate 35, first is adjusted
Stud 32 is connected in mounting base 2 after being fed through the first threaded hole；Second adjusting stud 33 abuts after being fed through the second threaded hole
In institute's mounting base 2.First adjusting stud 32 and the second adjusting stud 33 are connected to two be oppositely arranged in mounting base 2 respectively
On side.By the adjusting of the first adjuster, mounting base may be implemented along the direction where arrow D in Fig. 2 and carry out left and right cunning
It moves.When successively the second adjusting stud 33 is moved back in rotation, precession first adjusts stud 32, mounting base 2 is pushed away the first adjusting stud 32
It is mobile towards right side under dynamic.When the first adjusting stud 32 is moved back in rotation, precession second adjusts stud 33, mounting base 2 adjusts spiral shell second
It is mobile towards left side under the promotion of column 33, it is easy to adjust, improve the accuracy of collimator adjustment.
Further, sliding rack 3 is connected with the baffle 36 being obliquely installed, and the two sides of adjustment portion 1 are respectively arranged with first
The second adjuster that fagging 413 and the second support plate 433 are formed, between the first support plate 413 and baffle 36, the second support plate
433 have gap with baffle 36, and gap can be set to 5mm or so.The first starting screw is bolted in first support plate 413
415, the second starting screw 435 is bolted in the second support plate 433, by adjusting 415 precession first of the first starting screw respectively
The depth of 435 the second support plate of precession 433 of the depth of support plate 413 and the second starting screw, adjustable adjustment portion 1 and baffle
Angle between 36.When the depth of 415 the first support plate of precession 413 of the first starting screw and 435 precession of the second starting screw
When depth in two support plates 433 is identical, make adjustment portion 1 perpendicular to the plane of incidence 13 and by the plane at button-head hinge center
It is interior, it is swung around button-head hinge, i.e. direction in Fig. 1 where arrow K；When 415 precession first of the first starting screw supports
When the depth of plate 413 and depth difference in 435 the second support plate of precession 433 of the second starting screw, adjustment portion 1 is relative to baffle
36 tilt angle is different, by the depth and the second jacking spiral shell that adjust 415 the first support plate of precession 413 of the first starting screw
The depth in 435 the second support plates of precession 433 is followed closely, realizes that adjustment portion 1 is rotated along the direction where arrow E；Baffle 36
On offer for the through-hole by flying spot.
Third adjuster is provided on ontology 4.Specifically, third adjuster includes that the first pushing plate 25 and second pushes
Plate 26, the 5th stud 27 and the 6th stud 28.Adjustment portion 1 includes adjustable side 12 and installation end 11, installation end 11 and 2 phase of mounting base
Connection, the first pushing plate 25 and the second pushing plate 26 are located at the two sides of adjustable side 12, and the is offered in the first pushing plate 25
Five threaded holes offer the 6th threaded hole in the second pushing plate 26, and the 5th stud 27 is fed through the 5th threaded hole, the 6th stud
28 are fed through the two sides for being connected to adjustable side 12 after the 6th threaded hole respectively, pass through the collaboration of the 5th stud 27 and the 6th stud 28
Effect can make the holding of the support end of the first starting screw 415 and the second starting screw 435 be in contact with the supporting surface of baffle 36
Under state, the adjustable side 12 of adjustment portion 1, which is put and (turned) as axis using button-head hinge, to be moved, i.e. realization adjustable side 12 is along arrow in Fig. 2
Direction where head C is swung.By the adjustment effect of above-mentioned each component, it can be achieved that the first line seam 15 and the second line seam
16 preferably adjust incident next ray to be scanned, and two beam scannings ray adjusted is made to be incident on the sensitive volume on detector,
Simplify adjustment process.
Collimator provided in an embodiment of the present invention is integrated with the first line seam 15 and the second line seam 16 in adjustment portion 1,
The size for reducing collimator, reduces the manufacture difficulty of collimator；It is rotated by adjustment portion 1 relative to mounting base 2, mounting base
2 position adjusting carried out by sliding, it can be achieved that the first line seam 15 and the preferably adjustment of the second line seam 16 it is incident come to standard
Straight flying spot makes two beam scannings ray adjusted be incident on the sensitive volume on detector, reduces collimator and occupies scanning system
The space of system promotes the modularization and fining of scanning system, simplifies adjustment process.
Optionally, adjustment portion 1 further includes ontology 4, the first shield 41 being mounted on ontology 4,42 and of secondary shielding body
Third shield 43；It is limited between first shield 41 and third shield 43 and forms ray channel, secondary shielding body 42 is located at
In ray channel；Between first shield 41 and secondary shielding body 42 limit formed the first line seam 15, secondary shielding body 42 with
It is limited between third shield 43 and forms the second line seam 16.Ontology 4 can be frame structure, the first shield 41, the second screen
It covers body 42 and third shield 43 is respectively positioned on the inside of ontology 4, the first support plate 413 and the second support plate 433 are located at this
The two sides of body.
The direction slip of first shield 41 and third shield 43 along the extending direction perpendicular to ray channel is set
It sets.When the first shield 41 is far from secondary shielding body 42, the width of the first line seam 15 increases, and the first shield 41 is close
When secondary shielding body 42, the width of the first line seam 15 reduces；When third shield 43 is far from secondary shielding body 42, the second beam
The width of stream seam 16 increases, and when third shield 43 is close to secondary shielding body 42, the width of the second line seam 16 reduces.This implementation
Example is slid on ontology 4 by the first shield 41 and third shield 43, is effectively adjusted to wear and is projected the first line seam 15 and the
The width of the flying spot of the outlet of two lines seam 16, simplifies the adjustment process of collimator, improves the first line and stitches 15 Hes
The degree of regulation of second line seam 16.
Further, the distance between the first shield 41 and third shield 43 along far from radiation source 9 direction gradually
Increase, the width of secondary shielding body 42 is gradually increased along the direction far from radiation source 9.The width of secondary shielding body 42 refers to herein
It is the distance between two faces that first shield 41 and third shield 43 are respectively facing on secondary shielding body 42.On
State set-up mode can make the first line seam 15 and second line seam 16 along the distance between extending direction of ray channel gradually
Increase, so that the distance between the two beam scanning rays for wearing out the first line seam 15 and the second line seam 16 gradually increase, with
Guarantee that twice flying spot is accurately incident to the sensitive volume of detector.
Preferably, the median plane of ray channel is overlapped setting with the median plane of secondary shielding body 42, the first line can be made to stitch
15 and second two sides that is symmetricly set on secondary shielding body 42 of line seam 16, be conducive to be threaded through the first line seam 15 and the second beam
The width of two beam scanning rays in stream seam 16 is consistent, and improves image quality.Herein it should be noted that ray channel
Median plane refers to that the extending direction along ray channel divides equally the face of ray channel, and the median plane of secondary shielding body 42 refers to edge
The extending direction of ray channel divides equally the face of secondary shielding body 42.
Optionally, secondary shielding body 42 can be slid along the extending direction of ray channel.It is optional as one
Implementation process, collimator further include the first Limit screw 24 and the first positioning plate 422, and the first positioning plate 422 is mounted on ontology 4
On；Band the first limit hole of internal thread is offered on first positioning plate 422, one end of the first Limit screw 24 is fed through first
It is connected to after limit hole on secondary shielding body 42 towards the side of radiation source 9.The first Limit screw 24 is adjusted by rotation to be spirally connected
Position on the first positioning plate 422, and then secondary shielding body 42 is adjusted in ray channel along separate or close radiation source 9
Direction moved.When sliding when secondary shielding body 42 towards the direction close to radiation source 9, secondary shielding body 42 is to wearing into penetrating
The range of blocking of flying spot inside line passage increases, and the flying spot by the first line seam 15 and the second line seam 16 is equal
It reduces, the width for showing as the first line seam 15 and the second line 16 exit flying spots of seam becomes smaller；When secondary shielding body 42
When sliding towards the direction far from radiation source 9, secondary shielding body 42 blocks model to wearing into the flying spot inside ray channel
Reduction is enclosed, is increased by the radiation ray of the first line seam 15 and the second line seam 16, the first line seam 15 and second is shown as
The width of 16 outlet flying spot of line seam increases.It is wherein also provided on baffle 36 and walks hole 23, the first Limit screw 24
It is successively fed through after walking hole 23, the first limit hole and is connected to towards the side of radiation source 9 on secondary shielding body 42, by keeping off
The precession of the first Limit screw 24 is adjusted outside plate 36 or rotation is moved back, and controls the movement of secondary shielding body 42, it is simple and convenient.Walk hole 23
Aperture be greater than the first Limit screw 24, reduce the first Limit screw 24 and walking the difficulty rotated in hole 23, adapt to adjustment portion
1 change in location relative to baffle 36.Sliding rail 44 is also provided on ontology 4, secondary shielding body 42 is along where sliding rail 44
Direction slid.
On the basis of the above embodiments, collimator further includes being connected to the second positioning plate 411 and third on ontology 4 to determine
Position plate 431, the second positioning plate 411 are located at the first shield 41 backwards to the side of third shield 43；Third positioning plate 431 is located at
Third shield 43 is backwards to the side of the first shield 41；41 bolt of second positioning plate 411 and the first shield, third are fixed
Position plate 431 and 43 bolt of third shield.This implementation is further limited the first shield 41 by the second positioning plate 411
On ontology 4, third shield 43 is further defined on ontology 4 by third positioning plate 431, improves the first shielding
The stability of body 41 and third shield 43.
Further, the first shield 41 is adjustably mounted at the second positioning plate 411 by the first mounting screw 412
On, there are gaps between the second positioning plate 411 and the first shield 41, are worn by multiple first mounting screws 412 into first
The difference of length between shield 41 can also adjust the angle between the second positioning plate 411 and the first shield 41；Third is fixed
Position plate 431 is mounted on third shield 43 by multiple second mounting screws 432, third positioning plate 431 and third shield
There are gaps between 43, wear the difference into length between third shield 43 by multiple second mounting screws 432, may be used also
To adjust the angle between third positioning plate 431 and third shield 43.It should be noted that third positioning plate 431 and third
Gap between shield 43, slot milling when mobile to third shield 43, the second positioning plate 411 and the first shield 41 it
Between there are gap, slot milling when mobile to the first shield 41.
Further, third adjuster further includes the first support plate 413 and the second support plate 433；First support plate 413
It is connected with the second positioning plate 411, the second support plate 433 is connected with third positioning plate 431；It is opened up in first support plate 413
There are the first waist hole 414, the extending direction for extending perpendicularly to ray channel of the first waist hole 414, the second Limit screw is worn
It is removably mounted on baffle 36 after crossing the first waist hole 414；Offer the second waist hole 434 in second support plate 433, second
The extending direction for extending perpendicularly to ray channel of waist hole 434；Third Limit screw is fed through removable after the second waist hole 434
It is mounted on unloading on baffle 36.The extending direction of the first waist hole 414 and the extending direction of the second waist hole 434 refer to grow herein
Spend direction.The present embodiment can be adjusted along position of the direction where arrow C to adjustment portion 1.
Specifically, the second Limit screw is unscrewed in the first waist hole, third Limit screw is loosened in the second waist hole,
Swing collimator along the direction where arrow C, after the completion of adjustment, again by the second Limit screw precession first
It is fastened in waist hole 414 on ontology 4, will be fastened on ontology 4 in the second waist hole of third Limit screw precession 434 again.It needs
Illustrate, the length and width of 414 length and width of the first waist hole and the second waist hole 415 can be extended to increase
Add adjustable range.
Following mutually matched adjusting may be implemented in first adjuster, the second adjuster and third adjuster.Firstly,
First adjuster and the second adjuster co-operating adjust position and the posture of the installation end 11 of collimator, and adjustment process is as follows:
The first adjuster is adjusted first, by the plane of incidence 13 near 1 installation end of adjustment portion to waiting for collimated scanning ray；Adjustment second
Adjuster adjusts collimator posture, and the flying spot into collimator is enable to be smoothly through the first line seam 15 and the second line
Seam 16, and flying spot can project the sensitive volume of detector.Secondly, adjusting third adjuster, pass through the tune of third adjuster
It is whole, so that the adjustable side 12 of collimator is also reached requirement.
Optionally, the first pushing plate 25 is located at the first support plate 413 backwards to the side of the second positioning plate 411, the 5th stud
27 be fed through the first pushing plate 25 after be connected in the first support plate 413, pass through the promotion of the 5th stud 27 and the 6th stud 28
Effect, can be such that collimator is swung along the direction where arrow C.
Preferably, the first shield 41 and length of the third shield 43 on the extending direction of ray channel are all larger than the
Length of two shields 42 on the extending direction of ray channel, avoids secondary shielding body 42 from exceeding when sliding in ray channel
Collimator outer profile, appearance good integrity.
Optionally, by lead, perhaps third shield 43 is made by lead or metal in lead alloy material to the first shield 41
Material is made；Secondary shielding body 42 is made of tungsten or tungsten alloy material.Steel skeleton can also be increased in the inside of lead material, with
Increase the rigidity of the first shield 41 and third shield 43.
Fig. 7 is the top view of double-visual angle imaging system provided in an embodiment of the present invention, and Fig. 8 is provided in an embodiment of the present invention
The schematic diagram of internal structure of double-visual angle imaging system, Fig. 9 are the structural schematic diagram of the cross section A-A in Fig. 8.
Referring to Fig. 7 to Fig. 9, based on the same inventive concept, the present invention also provides a kind of double-visual angle imaging system,
It further include probe assembly including radiation source 9 and above-described collimator, probe assembly includes that the first detector group and second are visited
Survey device group；First detector group and the second detector group include multiple detectors；Multiple detector courts of first detector group
It is arranged to the outlet of the first line seam 15；Outlet setting of the multiple detectors of second detector group towards the second line seam 16.
First detector group is tested for receiving the flying spot scanning that the first line seam 15 is worn out towards 15 setting of the first line seam
Scanning information after object；Second detector group is worn towards 16 setting of the second line seam for receiving from the second line seam 16
The scanning information after flying spot scanning testee out, the first detector group and the second detector group are worked at the same time, are realized
The signal acquisition of double-visual angle imaging system.Optionally, the first detector group, which is located at from the first line, stitches what 15 outlets were worn out
On the path of flying spot, the second detector group is located at the path of the flying spot worn out from the outlet of the second line seam 16
On, to realize more comprehensive scanning imagery.
Optionally, probe assembly further includes vertically disposed vertical beam 5 and crossbeam 6, be adjustably mounted on vertical beam 5
One vertical arm 51 and the second vertical arm 52 and the first transverse arm 61 and the second transverse arm 62 being adjustably mounted on crossbeam 6；First
Multiple detectors in detector group are distributed on the first transverse arm 61 and the first vertical arm 51, multiple detections in the second detector group
Device is distributed on the second transverse arm 62 and the second vertical arm 52.
First vertical arm 51 and the second vertical arm 52 extend in the same direction, and the angle between the first transverse arm 61 and the second transverse arm 62 is sharp
Angle.The shaft of first vertical arm 51 and the shaft of the second vertical arm 52 are arranged in parallel, and are arranged between the first transverse arm 61 and the second transverse arm 62
There is scheduled angle, under the setting means, the first detector and the second detector can be accurately right with two beam scanning rays respectively
Together, the image quality of double-visual angle imaging system is higher.Optionally, the angle between the first transverse arm 61 and the second transverse arm 62 is arranged to
5 °, under the angle, double-visual angle imaging system provided by the invention can show best image quality.
On the basis of the above embodiments, the both ends of vertical beam 5 are separately connected there are two connector 54 and two substrates 53, the
The both ends of one vertical arm 51 are respectively rotatably mounted on a connector 54 and a substrate 53, the both ends point of the second vertical arm 52
It is not rotatably mounted on another connector 54 and another substrate 53.It is rotated by the first vertical arm 51 and the second vertical arm 52
Setting can make the detector being located in the first vertical arm 51 while rotate a branch of flying spot of adjustment alignment, in the second vertical arm 52
Detector rotates adjustment simultaneously and is aligned another beam scanning ray, simplifies adjustment process.It should be noted that two connectors 54
It can be set on the cross beam 6, simplify structure.
Figure 10 is the structural schematic diagram of vertical beam provided by the invention, and Figure 11 is the partial enlarged view of G in Figure 10.
Figure 10 to Figure 11 is please referred to, the first vertical arm 51 can the left and right translation (left and right directions in Figure 10) on substrate 53.
Specifically, double-visual angle imaging system further includes pedestal 55, fastening stud, third adjusting stud and the 4th adjusting stud；Pedestal connects
It connects in the lower part of vertical arm, substrate 53 is equipped with the first sliding plate 57 and the second sliding plate 58 being oppositely arranged, and pedestal 55 is located at the
Between one sliding plate 57 and the second sliding plate 58, bar shaped waist hole is offered on pedestal 55.First sliding plate 57 and the second sliding plate
58 are each perpendicular to the extending direction of bar shaped waist hole, and fastening stud is removably mounted on substrate 53 after being fed through bar shaped waist hole.
Third threaded hole is offered on first sliding plate 57, offers the 4th threaded hole on the second sliding plate 58；Third adjusts stud and wears
If being connected on pedestal 55 after crossing third adjustment hole, the 4th adjusting stud is connected on pedestal 55 after being fed through the 4th adjustment hole.
Stud is adjusted by precession third, revolves and moves back the 4th adjusting stud, realizes that the first vertical arm 51 moves to the right, passes through precession the 4th and adjust
Section stud, rotation move back third and adjust stud, realize that the first vertical arm 51 moves to the left.
Figure 10 to Figure 11 is please referred to, this gives the first ends of the first vertical arm 51 to be rotatably provided on substrate 53
One embodiment: double-visual angle imaging system further includes limit stud 56；The first end of first vertical arm 51 is provided with vertical arm laxative remedy
Orchid 511, arc waist hole is offered on vertical arm lower flange 511, and limit stud 56 is removably mounted on after being fed through arc waist hole
On pedestal 55；It is provided with shaft on vertical arm lower flange 511, opens up fluted on pedestal 55, shaft can be rotatably set in groove
It is interior；The arc core of arc waist hole is located on the central axis of shaft.When the first vertical arm 51 needs are rotated around shaft, will limit
Position stud 56 is dismantled lower or is unclamped from arc waist hole, and the first vertical arm 51 is rotated, by the first vertical arm 51 rotation to scheduled position
Limit stud 56 is re-secured in arc waist hole by place.
Connector 54 and the second end of the first vertical arm 51 are attached in the outside of crossbeam 6, are avoided and are connected sky in inside
Between narrow problem, can simplify the connection procedure between vertical beam 5 and the first vertical arm 51.The first end of first vertical arm 51 is in substrate
53 when being adjusted, and is the state loosened between the second end and connector 54 of the first vertical arm 41, waits the first of the first vertical arm 51
It holds after the completion of adjusting, then the second end of the first vertical arm 51 is fastened on connector 54.
The rotation of second vertical arm 52 and move mechanism are identical as the first vertical arm 51, and details are not described herein again.
Figure 12 is the structural schematic diagram of the crossbeam of first transverse arm of setting provided in an embodiment of the present invention and the second transverse arm.
As shown in figure 12, for installing the first transverse arm 61 and the second transverse arm 62 on the cross beam 6, the first transverse arm 61 and second
Transverse arm 62 is fixed on the cross beam 6 each by two cross slid platforms 63, each cross slid platform 63 include a cross sliding rail and
The sliding block slid in cross sliding rail.By taking the first transverse arm 61 as an example, crossbeam 6 is connected with cross sliding rail, the first transverse arm 61
It is connected with sliding block, sliding block is connected to the inside of cross sliding rail, adjusts two sliding blocks simultaneously in cross sliding rail along crossbeam 6
When longitudinal direction is translated, the first transverse arm 61 may be implemented along crossbeam 6 and realize longitudinal movement；Two sliding blocks are adjusted simultaneously in cross
When being translated in sliding rail along the transverse direction of crossbeam 6, the first transverse arm 61 may be implemented along crossbeam 6 and realize transverse shifting；One
Crosshead shoe moves in a circle around another crosshead shoe, may be implemented the first transverse arm 61 rotated relative to crossbeam 6 it is certain
Angle, the specific value of angle depend on the gap in cross sliding rail.Second transverse arm 62 is relative to the regulation mechanism of crossbeam 6 and
One transverse arm 61 is identical, and details are not described herein again.
Collimator provided in an embodiment of the present invention and double-visual angle imaging system, by being integrated with the first beam in adjustment portion 1
Stream seam 15 and the second line seam 16, reduce the size of collimator, reduce the manufacture difficulty of collimator；Pass through 1 phase of adjustment portion
Integral-rotation and mounting base 2 for mounting base 2 drive integral translation of the adjustment portion 1 relative to sliding rack 3, can be realized
First line seam 15 and the second line seam 16 reduce collimator with respectively with the first detector group and the second detector group to just
The space of the scanning system occupied when adjusting promotes the modularization and fining of scanning system, simplifies adjustment process；Positioned at perpendicular
The first vertical arm 51 and the second vertical arm 52 on beam 5 can be rotatably set, move in left-right direction, and the first vertical arm 51 may be implemented
Detector on detector and the second vertical arm 52 is aligned with flying spot；The first transverse arm 61 and second on crossbeam 6 is horizontal
Arm 62 can be translated and be rotated along crossbeam 6, to realize the detection on the detector and the second transverse arm 62 on the first transverse arm 61
Device aligns with flying spot, easy to adjust, and imaging effect is good.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (15)
1. a kind of collimator characterized by comprising
Slidable mounting base；
Adjustment portion, the adjustment portion are rotatably installed in the mounting base, and the adjustment portion includes the incidence being disposed opposite to each other
Face and exit facet offer the first line seam and the second line seam, the entrance of the first line seam and institute in the adjustment portion
The entrance for stating the second line seam is respectively positioned on the plane of incidence, the outlet and the outlet of second line seam of the first line seam
It is respectively positioned on the exit facet.
2. collimator according to claim 1, which is characterized in that be equipped with button-head hinge, the tune in the mounting base
The one end in section portion is connected by the button-head hinge and mounting base rotation.
3. collimator according to claim 1, which is characterized in that the collimator further includes sliding rack, the sliding rack
Including mounting surface, the mounting base is slippingly arranged on the mounting surface.
4. collimator according to claim 3, which is characterized in that the collimator further includes the first adjusting stud and second
Stud is adjusted, the first adjustable plate and the second adjustable plate of the two sides for being located at the mounting base are installed on the mounting surface；
The first threaded hole is offered on first adjustable plate, the second threaded hole is offered on second adjustable plate, and described first adjusts
Section stud is connected in the mounting base after being fed through first threaded hole；The second adjusting stud is fed through described second
It is connected to after threaded hole in the mounting base.
5. collimator according to any one of claims 1-4, which is characterized in that the adjustment portion includes ontology, installation
The first shield, secondary shielding body and third shield on the body；First shield and third shielding
It is limited between body and forms ray channel, the secondary shielding body is located in the ray channel；First shield with it is described
It is limited between secondary shielding body and forms the first line seam, limit shape between the secondary shielding body and the third shield
It is stitched at second line.
6. collimator according to claim 5, which is characterized in that first shield and the equal edge of third shield
Slippingly it is arranged on the body perpendicular to the extending direction of the ray channel.
7. collimator according to claim 6, which is characterized in that the secondary shielding body can prolonging along the ray channel
Stretch direction sliding.
8. collimator according to claim 6, which is characterized in that offer water conservancy diversion through-hole on the ontology, described first
Line sews up mouth and second line sews up mouth and is arranged towards the water conservancy diversion through-hole.
9. a kind of double-visual angle imaging system, including radiation source, which is characterized in that including described in claim 1-8 any one
Collimator, further includes:
Probe assembly, the probe assembly include the first detector group and the second detector group；The first detector group and institute
Stating the second detector group includes multiple detectors；The equal court of test surface of any one detector in the first detector group
The outlet stitched to first line is arranged；The test surface of any one detector in the second detector group is towards institute
State the outlet setting of the second line seam.
10. double-visual angle imaging system according to claim 9, which is characterized in that the probe assembly further includes vertically setting
It the vertical beam and crossbeam set, the first vertical arm being adjustably mounted on the vertical beam and the second vertical arm and adjustably installs
The first transverse arm and the second transverse arm on the crossbeam；Multiple detectors in the first detector group are distributed in described first
On transverse arm and first vertical arm, multiple detectors in the second detector group are distributed in second transverse arm and described
In two vertical arm.
11. double-visual angle imaging system according to claim 10, which is characterized in that first vertical arm and second vertical arm
It extends in the same direction, the angle between first transverse arm and second transverse arm is acute angle.
12. double-visual angle imaging system according to claim 11, which is characterized in that first transverse arm and second cross
Angle between arm is 5 °.
13. double-visual angle imaging system according to claim 10, which is characterized in that the both ends of the vertical beam are connected separately with
The both ends of connector and substrate, first vertical arm are respectively rotatably mounted on the connector and the substrate, described
The both ends of second vertical arm are respectively rotatably mounted on the connector and the substrate.
14. double-visual angle imaging system according to claim 13, which is characterized in that the double-visual angle imaging system further includes
Pedestal, fastening stud, third adjust stud and the 4th and adjust stud；
The pedestal is connected to the lower part of first vertical arm, is equipped on the substrate and is located at the of the pedestal two sides
One sliding plate and the second sliding plate offer bar shaped waist hole, first sliding plate and second sliding plate on the pedestal
It is each perpendicular to the extending direction of the bar shaped waist hole, the fastening stud is removably mounted on after being fed through the bar shaped waist hole
On the substrate；Third threaded hole is offered on first sliding plate, offers the 4th threaded hole on second sliding plate；
The third is adjusted after stud is fed through the third adjustment hole and is abutted on the base, and the 4th adjusting stud is fed through
It is abutted on the base after 4th adjustment hole.
15. double-visual angle imaging system according to claim 14, which is characterized in that the double-visual angle imaging system further includes
Limit stud；The first end of first vertical arm is provided with vertical arm lower flange, and the pedestal is located at the vertical arm lower flange and institute
It states between substrate, arc waist hole is offered on the vertical arm lower flange, the limit stud can after being fed through the arc waist hole
Releasably it is mounted on the base；Shaft is provided on the vertical arm lower flange, opened up on the pedestal it is fluted, described turn
Axis can be rotatably set in the groove；The arc core of the arc waist hole is located at the central axis of the shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979539.XA CN109686469A (en) | 2017-10-19 | 2017-10-19 | Collimator and double-visual angle imaging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979539.XA CN109686469A (en) | 2017-10-19 | 2017-10-19 | Collimator and double-visual angle imaging system |
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| Publication Number | Publication Date |
|---|---|
| CN109686469A true CN109686469A (en) | 2019-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710979539.XA Pending CN109686469A (en) | 2017-10-19 | 2017-10-19 | Collimator and double-visual angle imaging system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW547201U (en) * | 2002-11-05 | 2003-08-11 | Chin-Sung Wu | A device for adjusting angles of a screw-cutting machine |
| CN101470084A (en) * | 2007-12-28 | 2009-07-01 | 同方威视技术股份有限公司 | Jib structure of double-view angle scanning device |
| CN202305446U (en) * | 2011-10-18 | 2012-07-04 | 北京睿思厚德辐射信息科技开发有限公司 | Plane imaging, stereo imaging and self-scanning imaging device utilizing double-fly-line multi-slit scanning back scatter |
| CN203787095U (en) * | 2014-02-25 | 2014-08-20 | 北京君和信达科技有限公司 | Adjustable collimator for double-visual-angle radiation detection |
| CN104749199A (en) * | 2013-12-30 | 2015-07-01 | 同方威视技术股份有限公司 | Dual-energy/double-vision high-energy X-ray perspective imaging system |
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2017
- 2017-10-19 CN CN201710979539.XA patent/CN109686469A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW547201U (en) * | 2002-11-05 | 2003-08-11 | Chin-Sung Wu | A device for adjusting angles of a screw-cutting machine |
| CN101470084A (en) * | 2007-12-28 | 2009-07-01 | 同方威视技术股份有限公司 | Jib structure of double-view angle scanning device |
| CN202305446U (en) * | 2011-10-18 | 2012-07-04 | 北京睿思厚德辐射信息科技开发有限公司 | Plane imaging, stereo imaging and self-scanning imaging device utilizing double-fly-line multi-slit scanning back scatter |
| CN104749199A (en) * | 2013-12-30 | 2015-07-01 | 同方威视技术股份有限公司 | Dual-energy/double-vision high-energy X-ray perspective imaging system |
| CN203787095U (en) * | 2014-02-25 | 2014-08-20 | 北京君和信达科技有限公司 | Adjustable collimator for double-visual-angle radiation detection |
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