CN106442585A - Back scattering radiation imaging system - Google Patents
Back scattering radiation imaging system Download PDFInfo
- Publication number
- CN106442585A CN106442585A CN201610900967.4A CN201610900967A CN106442585A CN 106442585 A CN106442585 A CN 106442585A CN 201610900967 A CN201610900967 A CN 201610900967A CN 106442585 A CN106442585 A CN 106442585A
- Authority
- CN
- China
- Prior art keywords
- centering
- back scattering
- imaging device
- shield
- acceptance division
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01N23/20—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 using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/203—Measuring back scattering
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Radiation (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a back scattering radiation imaging system comprising a back scattering imaging device, a shield and a centering detection device, wherein the back scattering imaging device is used for performing back scattering radiation imaging on to-be-detected objects in a detection area; the shield is a movable structure made of a radiation shielding material, and is applicable to being arranged together with the back scattering imaging device on two sides of the detection area respectively; the centering detection device comprises a transmitting part and a receiving part which are arranged on the shield and the back scattering imaging device respectively, the transmitting part of the receiving part arranged on the back scattering imaging device is positioned nearby a position of a transmitting imaging ray bundle of the back scattering imaging device, and the transmitting part transmits a centering detection signal in a preset direction. When the receiving part receives the centering detection signal or the strength of the received centering detection signal is greater than a preset strength threshold value, a centering signal is transmitted to the back scattering imaging device. Therefore, whether the shield is installed correctly and effectively can be efficiently detected, and the safety of a radiation imaging process is improved.
Description
Technical field
The present invention relates to radiography field, more particularly to a kind of back-scatter radiation imaging system.
Background technology
For existing back scattering inspection system, all of radiation imaging apparatus are all arranged on a chassis vehicle, wherein
Including for launching the radiation source of radiation beam and for receiving the detector of checked property volume scattering radiation signal, its be respectively positioned on by
Check the same side of object.
Under mobile working pattern, back scattering inspection system can carry out hidden inspection to suspicious object in the process of moving,
In this mode because examined region is not FX, and certain regional work the frequency seldom, the time very short it is not necessary to
Inspected object opposite side setting screening arrangement it is also ensured that the safety of surrounding people.
But under fixing mode of operation, back scattering inspection system can need in a place selected temporarily according to task
Fixing use (such as highway bayonet socket surprise check, or certain momentous conference's venue entrance check), to the vehicle being normally driving through or
Personnel carry out safety inspection.In this mode it is necessary to fill in the setting shielding of inspected object other side useful ray beam position
Put and useful beam is shielded, to ensure the safety of surrounding people.But movable back scatters all imaging devices of equipment
It is all located at inspected object side, hidden inspection is its outstanding advantages, be therefore not easy to the other side in inspected object and set
Put the shield facility being connected with system, screening arrangement can only be set in other side temporarily, but for the yard selected temporarily
Institute, in the case of particularly often not knowing job site, is difficult to quickly and to effectively arrange screening arrangement.
Content of the invention
The purpose of the present invention essentially consists in provides a kind of back-scatter radiation that can fast and effeciently arrange screening arrangement to become
As system.
According to an aspect of the invention, it is provided a kind of back-scatter radiation imaging system, including：Back scattering imaging fills
Put, for back-scatter radiation imaging is carried out to the examined object in detection zone；Shield, shield is to use radiation shield material
Expect the removable frame made, be suitable to be separately positioned on detection zone both sides with backlight scattering imaging device；And centering detection
Device, including emission part and acceptance division, is separately positioned on shield and back scattering imaging device, wherein, is arranged on back scattering
Emission part on imaging device or acceptance division are located at back scattering imaging device and launch near the position of imaging ray bundle, emission part to
Predetermined direction launches centering detection signal, wherein, when acceptance division receives centering detection signal or receives centering detection signal
Intensity be more than predetermined strength threshold value when, scattering imaging device of supporting or opposing sends centering signal.
Preferably, emission part is arranged on back scattering imaging device, and predetermined direction is penetrated in the imaging of back scattering imaging device
In wire harness scanning plane；Or emission part is arranged on shield, predetermined direction is shield surface normal direction or and shield
The angle in surface normal direction is less than 30 °.
Preferably, emission part be back scattering imaging device transmitting imaging ray bundle emitter, with emitter to
As centering detection signal, acceptance division is arranged on shield the centering beam of predetermined direction transmitting, for receiving centering inspection
Survey signal, when the centering detection signal intensity that acceptance division receives is more than predetermined strength threshold value, scattering imaging device of supporting or opposing is sent out
Go out centering signal.
Preferably, the intensity of the centering beam of emitter transmitting is weaker than imaging ray bundle.
Preferably, emission part is optical signal transmitter, and acceptance division is optical signal sensor, when acceptance division receives centering inspection
When surveying signal, scattering imaging device of supporting or opposing sends centering signal.
Preferably, it is arranged on emission part on shield or acceptance division is located at the center of shield；And/or set
Put the acceptance division on back scattering imaging device or emission part is arranged to receive or the imaging of transmitting back scattering imaging device is penetrated
Centering detection signal in wire harness scanning plane.
Preferably, in response to centering signal it is allowed to back scattering imaging device launches imaging ray bundle.
Preferably, back-scatter radiation imaging system can also include：Object monitoring device, for monitoring examined object be
No entrance detection zone, in the case that object monitoring device monitors that examined object enters or will enter detection zone,
Emission part launches centering detection signal.
Preferably, monitor that examined object enters detection zone and back scattering imaging device receives in object monitoring device
When receiving centering signal, back scattering imaging device starts to launch imaging ray bundle.
Preferably, in back scattering imaging device transmitting imaging ray bundle so that back-scatter radiation imaging is carried out to examined object
During, when acceptance division receives centering detection signal, back scattering imaging device stops transmitting imaging ray bundle.
Preferably, centering detection means can include multiple emission parts or multiple acceptance division, when the transmitting of multiple emission parts
In the case that centering detection signal is all received, or multiple acceptance division all receives centering detection signal, just supports or opposes and be scattering into
As device sends centering signal.
Preferably, back-scatter radiation imaging system can also include：Alarming device, in emission part transmitting centering detection
Signal, and when centering detection means does not send centering signal, send warning.
To sum up, the back-scatter radiation imaging system of the present invention, using the portable shield installed, is examined by centering simultaneously
Survey device detect this shield whether correct and effective install (whether with faced by the imaging ray beam scanning of back scattering imaging device
In), greatly improve deployment speed during the fixing work of back-scatter radiation imaging system and radiogical safety.
Brief description
By combining accompanying drawing, disclosure illustrative embodiments are described in more detail, the disclosure above-mentioned and its
Its purpose, feature and advantage will be apparent from, wherein, in disclosure illustrative embodiments, identical reference number
Typically represent same parts.
Fig. 1 shows the structural representation of the back-scatter radiation imaging system of one embodiment of the invention under specific works scene
Figure.
Fig. 2 shows side view and the front view of shield according to an embodiment of the invention.
Fig. 3 shows side view and the front view of shield according to another embodiment of the present invention.
Specific embodiment
It is more fully described the preferred embodiment of the disclosure below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the disclosure and the embodiment party that should not illustrated here
Formula is limited.On the contrary, these embodiments are provided so that the disclosure is more thorough and complete, and can be by the disclosure
Scope intactly conveys to those skilled in the art.
When back scattering imaging device carries out radiant image to examined object, if being not provided with shield, or shielding
Body is not aligned with back scattering imaging device, and the imaging ray bundle of back scattering imaging device transmitting all can be led to pass through thing to be detected
Body, so that the personnel of examined object opposite side are subject to excessive radiation.And, it is vehicle-mounted shifting in back scattering imaging device
It is often necessary to deployment place is converted according to task situation during dynamic formula back scattering imaging equipment, need continually to dismantle and screen is installed
Cover body.
For above-mentioned situation, the present invention proposes a kind of back-scatter radiation that can quickly and accurately install shield and becomes
As system.
The back-scatter radiation imaging system of the present invention mainly includes back scattering imaging device, shield and centering detection dress
Put three parts.With reference to specific embodiment with regard to the structure of each several part in the back-scatter radiation imaging system of the present invention and work
Principle is described in further details.
1st, back scattering imaging device
Referring to Fig. 1, in the present embodiment, back scattering imaging device 10 can be integrated on moveable equipment, for example, can
To be integrated on vehicle.Wherein, back scattering imaging device 10 can include radiation appliance and detection device.
Radiation appliance can be made up of radiation source 11, beam current modulation device 12.The radiation signal of radiation source 11 transmitting is in bundle
Under the modulating action of stream modulating device 12, can form in time and be continually changing the pencil beam of position.
Wherein, radiation source 11 can adopt the X-ray tube of 225kV, can be shielded using lead or tungsten material about, and
And collimater can be set in radiation direction, collimater can about radiation source beam 11 radiation X-ray beam short transverse (with
Scanning direction is vertical) subtended angle and scanning direction (back scattering imaging device 10 is with respect to the direction of relative movement of examined object)
On width.
Beam current modulation device 12 can be any can be formed needed for back scattering imaging along inspected object short transverse
The device of the beam spot of upper scanning, such as flywheel or have incident in pairs and outgoing spiral fluted rotating cylinder etc..
Beam current modulation device 12 away from radiation source 11 side can arrange one after collimater 13.Collimater 13 afterwards
Can be made up of shielding materials such as tungsten, lead or steel, rear collimater 13 has from the ray of beam current modulation device 12 outgoing in height
Slit on direction, the slit median plane of rear collimater 13 is common with the scanning plane of the beam from beam current modulation device 12 outgoing
Face.
15 is the imaging ray for object is carried out with back scattering scanning being formed in the presence of beam current modulation device 12
Bundle, this imaging ray bundle is form of a stroke or a combination of strokes imaging ray bundle, and it can be scanned along short transverse.
Detection device can be made up of two detectors 14 being located at radiation appliance both sides respectively.Here, can also arrange
Multiple detectors 14, and multiple detector can be symmetricly set on the both sides of radiation appliance it is also possible to according to real space feelings
The asymmetric setting of condition.
Wherein, detector 14 can apply to detect any detector of the scattered signal of examined object scattering, excellent
Selection of land can be made up of plastic scintillant, photomultiplier and corresponding signal transacting and transmission electronics circuit.
Region shown in 30 is sense channel (detection zone addressed above), and examined object can pass through this detection
Passage, during examined object passes through sense channel, back scattering imaging device 10 just can be to treating in detection zone
Detection object carries out back-scatter radiation imaging.
Specifically, can be that back scattering imaging device 10 is motionless, examined object with certain speed (can be at the uniform velocity,
Can also be speed change) pass through sense channel 30, can be to passing through from the imaging ray bundle 15 of back scattering imaging device 10 outgoing
Examined object is scanned in height, and the part that examined object is scanned will scatter a number of scattering and penetrate
Wire harness, wherein, the detector 14 that scattered ray bundle between 90 ° to 180 ° for the angle of scattering can be scattered on imaging device 10 detects
Arrive, the intensity of the scattered ray receiving bundle can be converted into dispersion image by detector 14.Thus it is possible to complete to be checked
Survey the back-scatter radiation imaging of object.
In addition, the known technology that the back scattering imaging device 10 of the present invention can also not addressed herein using other,
If installation rate detection means is to realize the geometric correction under the conditions of different speeds.
2nd, shield
Shield 16 is the removable frame made with radiation shielding material, be arranged on sense channel 30 away from back scattering
The side of imaging device 10.
Wherein, the type of the radiation signal that the shielding material of shield 16 can be radiated according to back scattering imaging device 10
Chosen.For example, for X or γ emission types, it is possible to use tungsten, lead, steel and concrete etc. are as shielding material.
Specifically, for X-ray shield, price can be adopted relatively inexpensive but the preferable lead material of shield effectiveness, in order to
Solve the problems, such as that lead material rigidity is weak, necessary Steel material skeleton can be aided with.In order in the premise ensureing radiation screening effect
The lower weight as far as possible reducing shield 16, the shield 16 mid portion width range more slightly wider than imaging ray bundle 15 width is permissible
Adopt thicker main shield body to shield imaging ray bundle 15, the secondary shield beyond this part can be used for shielding ratio imaging and penetrates
The much lower stray radiation of wire harness 15 intensity, so the thickness of secondary shield can greatly reduce.
That is, shield 16 can include the stronger main shield body of screening ability and the weaker secondary shielding of screening ability
Body.Wherein it is possible to using shield 16 zone line as main shield body, main shield body can be made with thicker shielding material,
Region beyond shield 16 zone line can be used as secondary shield, and secondary shield can be made with relatively thin shielding material.
In addition, shield 16 can store and be fixed on back scattering imaging device 10, with back scattering imaging device 10 1
Play transport, and known technology can be adopted to simplify dismounting and to be easy to mobile and fixing.
3rd, centering detection means
Centering detection means includes emission part and acceptance division.Here it is possible to emission part is arranged on back scattering imaging device
It is also possible to be arranged on acceptance division on back scattering imaging device 10 on 10.Emission part is being arranged on back scattering imaging device 10
When upper, acceptance division is arranged on shield 16, and when being arranged on acceptance division on back scattering imaging device 10, emission part is arranged on
On shield 16.
Because centering is mainly by shield 16 centre position of shield 16 (preferably) and back scattering imaging device
The position of 10 transmitting imaging ray bundle is aligned.Therefore, it is arranged on the emission part on back scattering imaging device 10 or reception
Portion can be preferably located in back scattering imaging device 10 and launch near the position of imaging ray bundle, be arranged on sending out on shield 16
Penetrate portion or acceptance division can also be preferably located in the center of shield 16.
Emission part can launch centering detection signal to predetermined direction.Wherein, emission part is being arranged on back scattering imaging
When on device 10, emission part can be along the direction of propagation transmitting centering inspection of the imaging ray bundle of back scattering imaging device 10 transmitting
Survey signal, now, predetermined direction can be in the imaging ray beam scanning face of back scattering imaging device 10.Here, imaging ray
Beam scanning face is exactly the propagation face of the imaging ray bundle (flying spot bundle) from back scattering imaging device 10 transmitting.By emission part
When being arranged on shield 16, emission part can be along the direction transmitting centering detection letter of the ground plane perpendicular to shield 16
Number, now, predetermined direction can be for shield 16 surface normal direction it is also possible to angle with shield 16 surface normal direction
Less than 30 °.
As shown in Figure 2 and Figure 3, in the center of shield 16, an emission part 20 can be set it is also possible in shield
It is symmetrical arranged two emission parts 20 along center line on 16.Emission part 20 can launch centering along shield 16 surface normal direction
Detection signal it is also possible to the transmitting in a certain angle with method line optics, for example, can be launched in 30 ° of angles.
When acceptance division receive emission part transmitting centering signal (or receive centering signal intensity be more than predetermined threshold
Value) when it can be determined that shield 16 is aligned with back scattering imaging device 10, scattering imaging device 10 of now can supporting or opposing
Penetrate centering signal.
Emission part in centering detection means and acceptance division can be a set of independent emitting-receiving systems it is also possible to by carrying on the back
The part-structure of scattering imaging device 10 participates in constituting.
As one embodiment of the present of invention, the emission part in centering detection means can be in back scattering imaging device 10
Radiation appliance.Acceptance division in centering detection means can be made up of the reception device being arranged on shield 16.This reception
Device can be a kind of radiation detector, when the intensity signal that detector detects is higher than setting value, judge shield
16 with imaging ray bundle 15 centering, scattering imaging device 10 of supporting or opposing sends centering signal it is allowed to back scattering imaging device 10 is launched
Imaging ray bundle；On the contrary, if the intensity signal that control device receives is less than setting value, shield 16 and imaging are judged
The non-centering of beam 15, forbids back scattering imaging device 10 transmitting imaging ray bundle.Here, using back scattering imaging device 10
In radiation appliance as emission part when, can using the emissive porwer centering beam weaker than imaging ray bundle as centering detect letter
Number.That is, the beam of back scattering imaging device 10 transmitting both can carry out radiant image use as to object to be detected
Imaging ray bundle it is also possible to as centering detection centering beam.And, detecting used time, Ke Yiyou as centering
The weaker beam of selection of land emissive porwer.
Wherein, centering signal here can be sent by reception device it is also possible to be sent by other unit modules.For example,
One control device can also be set on being arranged on shield 16, control device can according to reception device receive signal Lai
Form the centering signal of whether centering.
In the present embodiment, the radiation detector in centering detection means may be mounted at the centre bit of dynamic shield 16
Put.Radiation detector can apply to the various known Detection Techniques that imaging ray Shu Jinhang is detected, the radiation of its output
Strength signal can be the digital quantity that analog quantity can also be after AD conversion.
As an alternative embodiment of the invention, the emission part of centering detection means can be using similar infrared transmitter
Etc optical signal transmitter, the acceptance division of centering detection means can be corresponding optical signal receiver.
Wherein, when being arranged on optical signal transmitter on back scattering imaging device 10, need to ensure optical signal transmitter
The optical signal of transmitting is in the imaging ray beam scanning face of back scattering imaging device 10.Now, the back scattering shown in Fig. 1 is become
For device 10, optical signal transmitter can be preferably mounted in inlet side or its slit of rear collimater 13, and optical signal connects
Receive the center that device may be mounted at shield 16.
Only when optical signal transmitter transmitting centering detection signal (optical signal) back scattering imaging device 10 imaging
When in beam scanning plane, centering detection signal could project from rear collimater 13 collimating slit (imaging ray bundle be also from
Project it is ensured that both are coplanar in this slit), be then possible to allow optical signal receiver to receive.Only when detecting
When sensor receiving unit receives the infrared beam that transmitter unit sends, just can provide centering signal it is allowed to back scattering imaging
Device 10 launches imaging ray bundle.
Correspondingly, when being arranged on optical signal transmitter on shield 16, optical signal transmitter may be mounted at shielding
The center of body 16, the position that optical signal receiver may be mounted at the transmitting imaging ray bundle of back scattering imaging device 10 is attached
Closely, for example, for the back scattering shown in for Fig. 1 becomes device 10, optical signal receiver can be preferably mounted in rear collimater 13
Inlet side or its slit in.
4th, specific work process
Monitoring before 4.1 centering detections
Under fixing mode of operation, back scattering imaging device 10 carries out the process of back-scatter radiation imaging to examined object
In, examined object is located between back scattering imaging device 10 and shield 16, and now, examined object can block middle detection dress
The signal putting 20 acceptance division receives.
Therefore, the back-scatter radiation imaging system of the present invention can also include object monitoring device, to be detected for monitoring
Whether object enters detection zone, in the case that object monitoring device monitors that examined object enters detection zone, centering
Emission part transmitting centering detection signal in detection means.
As shown in figure 1, when sense channel 30 is unidirectional sense channel, detection zone can be to be with imaging ray bundle 15
Benchmark, extends the region of preset distance to sense channel upstream.In this case, can arrange in the upstream of imaging ray bundle 15
One object monitoring device.
In addition, when sense channel 30 is two-way sense channel, detection zone can be on the basis of imaging ray bundle 15
Extend the region of preset distance to both sides.In this case, an object prison can be respectively provided with imaging ray bundle 15 both sides
Survey device.
Thus, it is possible to monitor whether examined object enters detection zone by object monitoring device, monitor to be checked
Survey object to enter during detection zone it is believed that next needing back scattering imaging device 10 to carry out back scattering to examined object
Imaging, at this point it is possible to control the emission part transmitting centering detection signal of centering detection means, to complete shield 16 and back scattering
The centering detection process of imaging device 10.
4.2 centering detections
After the operating position of back scattering imaging device 10 is fixing, shield 16 or back scattering imaging device can be moved
10, the situation of the centering detection signal of emission part transmitting that acceptance division receives in moving process, can be observed, to judge to shield
Cover whether body 16 is aligned with back scattering imaging device 10.
According to the concrete setting of centering detection means, the centering detection signal of emission part transmitting can be received in acceptance division
When it is believed that shield 16 is aligned with back scattering imaging device 10.Alternatively, it is also possible to receive emission part transmitting in acceptance division
Centering detection signal intensity be more than predetermined strength threshold value when it is believed that shield 16 is right with back scattering imaging device 10
Accurate.
In addition, the emission part being arranged on shield 16 or acceptance division can be multiple, at this point it is possible to only when multiple transmittings
The centering detection signal of portion's transmitting is all received, or in the case that multiple acceptance division all receives centering detection signal, just to
Back scattering imaging device 10 sends centering signal.Wherein, multiple emission parts or multiple acceptance division can keep at a certain distance away setting.
4.3 back-scatter radiation imagings
In response to receiving centering signal, back scattering imaging device 10 transmitting imaging ray bundle can be allowed.In back scattering
Imaging device 10 carries out in back-scatter radiation imaging process to examined object, and the emission part in centering detection means can stop
Transmitting centering signal is it is also possible to continue transmitting centering signal.
In the case that the emission part in centering detection means continues transmitting centering signal, if in centering detection means
Acceptance division receives centering signal, shows do not have examined object between shield 16 and back scattering imaging device 10, that is, completes
Scanning to examined object.Now, back scattering imaging device 10 can stop launching imaging ray bundle.
In addition, the back-scatter radiation imaging system of the present invention can also include alarming device.When centering detects unsuccessfully, alert
Showing device can send warning, to remind related security staff.For example, it is possible to the emission part in centering detection means sends centering
Detection signal, and when centering detection means does not send centering signal, send warning.
To sum up, the back-scatter radiation imaging system of the present invention, using the portable shield installed, is examined by centering simultaneously
Survey device detect this shield whether correct and effective install (whether with faced by the imaging ray beam scanning of back scattering imaging device
In), greatly improve deployment speed during the fixing work of back-scatter radiation imaging system and radiogical safety.
Above describe the back-scatter radiation imaging system according to the present invention in detail by reference to accompanying drawing.
It is described above various embodiments of the present invention, described above is exemplary, and non-exclusive, and
It is not limited to disclosed each embodiment.In the case of the scope and spirit without departing from illustrated each embodiment, for this skill
For the those of ordinary skill in art field, many modifications and changes will be apparent from.The selection of term used herein, purport
Best explaining principle, practical application or the improvement to the technology in market of each embodiment, or make the art
Other those of ordinary skill are understood that each embodiment disclosed herein.
Claims (10)
1. a kind of back-scatter radiation imaging system is it is characterised in that include：
Back scattering imaging device, for carrying out back-scatter radiation imaging to the examined object in detection zone；
Shield, described shield is the removable frame made with radiation shielding material, is suitable to fill with described back scattering imaging
Put and be separately positioned on described detection zone both sides；And
Centering detection means, including emission part and acceptance division, is separately positioned on described shield and described back scattering imaging device
On, wherein, the emission part being arranged on described back scattering imaging device or acceptance division are located at described back scattering imaging device transmitting
Near the position of imaging ray bundle, described emission part launches centering detection signal to predetermined direction,
Wherein, when described acceptance division receives described centering detection signal or receives the intensity of described centering detection signal and is more than
During predetermined strength threshold value, send centering signal to described back scattering imaging device.
2. back-scatter radiation imaging system according to claim 1 it is characterised in that
Described emission part is arranged on described back scattering imaging device, and described predetermined direction is in the one-tenth of described back scattering imaging device
As in beam scanning plane；Or
Described emission part is arranged on described shield, described predetermined direction be described shield surface normal direction or with described
The angle in shield surface normal direction is less than 30 °.
3. back-scatter radiation imaging system according to claim 1 it is characterised in that
Described emission part is the emitter of the described imaging ray bundle of transmitting of described back scattering imaging device, with described transmitting dress
Put to described predetermined direction transmitting centering beam as described centering detection signal,
Described acceptance division is arranged on described shield, for receiving described centering detection signal,
When the intensity that described acceptance division receives described centering detection signal is more than predetermined strength threshold value, become to described back scattering
As device sends centering signal.
4. back-scatter radiation imaging system according to claim 3 it is characterised in that
The intensity of the described centering beam of described emitter transmitting is weaker than described imaging ray bundle.
5. back-scatter radiation imaging system according to claim 1 it is characterised in that
Described emission part is optical signal transmitter, and described acceptance division is optical signal sensor,
When described acceptance division receives described centering detection signal, send centering signal to described back scattering imaging device.
6. back-scatter radiation imaging system according to claim 1 it is characterised in that
It is arranged on emission part on described shield or acceptance division is located at the center of described shield；And/or
The acceptance division being arranged on described back scattering imaging device or emission part are arranged to receive or launch described back scattering one-tenth
As the centering detection signal in the imaging ray beam scanning face of device.
7. back-scatter radiation imaging system according to claim 1 it is characterised in that
In response to described centering signal it is allowed to described back scattering imaging device launches described imaging ray bundle.
8. back-scatter radiation imaging system according to claim 1 is it is characterised in that also include：Object monitoring device, uses
Whether enter described detection zone in monitoring examined object,
In the case that described object monitoring device monitors that described examined object enters described detection zone, described emission part
Launch described centering detection signal.
9. the back-scatter radiation imaging system according to claim 7 or 8 it is characterised in that
In described back scattering imaging device transmitting imaging ray bundle so that back-scatter radiation imaging is carried out to described examined object
During, when described acceptance division receives described centering detection signal, described back scattering imaging device stops launching described one-tenth
As beam.
10. back-scatter radiation imaging system according to claim 1 it is characterised in that
Described centering detection means includes multiple described emission parts or multiple described acceptance division, when multiple described emission parts transmittings
In the case that centering detection signal is all received, or multiple described acceptance division all receives centering detection signal, just to described
Back scattering imaging device sends described centering signal.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900967.4A CN106442585A (en) | 2016-10-17 | 2016-10-17 | Back scattering radiation imaging system |
| PCT/CN2017/106346 WO2018072670A1 (en) | 2016-10-17 | 2017-10-16 | Back scattering radiation imaging system |
| SA519401567A SA519401567B1 (en) | 2016-10-17 | 2019-04-14 | Backscatter Radiation Imaging System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610900967.4A CN106442585A (en) | 2016-10-17 | 2016-10-17 | Back scattering radiation imaging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106442585A true CN106442585A (en) | 2017-02-22 |
Family
ID=58173877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610900967.4A Pending CN106442585A (en) | 2016-10-17 | 2016-10-17 | Back scattering radiation imaging system |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN106442585A (en) |
| SA (1) | SA519401567B1 (en) |
| WO (1) | WO2018072670A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072670A1 (en) * | 2016-10-17 | 2018-04-26 | 北京君和信达科技有限公司 | Back scattering radiation imaging system |
| CN109142404A (en) * | 2018-11-01 | 2019-01-04 | 同方威视技术股份有限公司 | Back scattering imaging system, scanography system and backscatter images imaging method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836671A (en) * | 1985-04-08 | 1989-06-06 | Charles Lescrenier | Locating device |
| US5388143A (en) * | 1993-11-26 | 1995-02-07 | Arch Development Corporation | Alignment method for radiography and radiography apparatus incorporating same |
| US5764683A (en) * | 1996-02-12 | 1998-06-09 | American Science And Engineering, Inc. | Mobile X-ray inspection system for large objects |
| CN1556921A (en) * | 2002-11-06 | 2004-12-22 | �����Ƽ����̹�˾ | X-ray backscatter mobile inspection van |
| EP1837644A1 (en) * | 2006-03-23 | 2007-09-26 | General Electric Company | Method for aligning radiographic inspection system |
| CN104634796A (en) * | 2014-12-11 | 2015-05-20 | 清华大学 | Alignment system and alignment method for container or vehicle inspection system |
| CN206420797U (en) * | 2016-10-17 | 2017-08-18 | 北京君和信达科技有限公司 | Back-scatter radiation imaging system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204129240U (en) * | 2014-07-04 | 2015-01-28 | 清华大学 | X ray backscattered channel formula safe examination system |
| CN104101910A (en) * | 2014-07-04 | 2014-10-15 | 清华大学 | Distributed radiation source-based X-ray backscattering channel type vehicle security system and method |
| CN106442585A (en) * | 2016-10-17 | 2017-02-22 | 北京君和信达科技有限公司 | Back scattering radiation imaging system |
-
2016
- 2016-10-17 CN CN201610900967.4A patent/CN106442585A/en active Pending
-
2017
- 2017-10-16 WO PCT/CN2017/106346 patent/WO2018072670A1/en active Application Filing
-
2019
- 2019-04-14 SA SA519401567A patent/SA519401567B1/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4836671A (en) * | 1985-04-08 | 1989-06-06 | Charles Lescrenier | Locating device |
| US5388143A (en) * | 1993-11-26 | 1995-02-07 | Arch Development Corporation | Alignment method for radiography and radiography apparatus incorporating same |
| US5764683A (en) * | 1996-02-12 | 1998-06-09 | American Science And Engineering, Inc. | Mobile X-ray inspection system for large objects |
| US5903623A (en) * | 1996-02-12 | 1999-05-11 | American Science & Engineering, Inc. | Mobile X-ray inspection system for large objects |
| US5764683B1 (en) * | 1996-02-12 | 2000-11-21 | American Science & Eng Inc | Mobile x-ray inspection system for large objects |
| CN1556921A (en) * | 2002-11-06 | 2004-12-22 | �����Ƽ����̹�˾ | X-ray backscatter mobile inspection van |
| EP1837644A1 (en) * | 2006-03-23 | 2007-09-26 | General Electric Company | Method for aligning radiographic inspection system |
| US20070223657A1 (en) * | 2006-03-23 | 2007-09-27 | General Electric Company | Method for aligning radiographic inspection system |
| CN104634796A (en) * | 2014-12-11 | 2015-05-20 | 清华大学 | Alignment system and alignment method for container or vehicle inspection system |
| CN206420797U (en) * | 2016-10-17 | 2017-08-18 | 北京君和信达科技有限公司 | Back-scatter radiation imaging system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018072670A1 (en) * | 2016-10-17 | 2018-04-26 | 北京君和信达科技有限公司 | Back scattering radiation imaging system |
| CN109142404A (en) * | 2018-11-01 | 2019-01-04 | 同方威视技术股份有限公司 | Back scattering imaging system, scanography system and backscatter images imaging method |
| WO2020088198A1 (en) * | 2018-11-01 | 2020-05-07 | 同方威视技术股份有限公司 | Backscatter imaging system, scanning inspection system, and backscatter imaging method |
| CN109142404B (en) * | 2018-11-01 | 2024-06-11 | 同方威视技术股份有限公司 | Back-scattering imaging system, scanning inspection system and back-scattering image imaging method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018072670A1 (en) | 2018-04-26 |
| SA519401567B1 (en) | 2022-06-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8908831B2 (en) | Covert surveillance using multi-modality sensing | |
| CA3078087C (en) | Covert surveillance using multi-modality sensing | |
| CN105301669B (en) | Rays safety detection apparatus and X-ray detection X method | |
| CN201199235Y (en) | Novel X-ray channel type safety-check system structure | |
| CN201173903Y (en) | Jumping point scanning radiation image forming apparatus | |
| US20040251415A1 (en) | Density detection using real time discrete photon counting for fast moving targets | |
| CN101501477A (en) | X-ray inspection with contemporaneous and proximal transmission and backscatter imaging | |
| CN102105815A (en) | Drive-through scanning systems | |
| CN101379415A (en) | X-ray inspection based on scatter detection | |
| CN106950232A (en) | Radiation testing method and radiation checking system | |
| CN101509880A (en) | Safety check system of manifold effect detection fusing technology applying X ray | |
| CN106290422B (en) | Imaging device and method for vehicle safety inspection | |
| CN104062688A (en) | X-ray back scattering channel type vehicle security check system and method based on distributed radiation sources | |
| CN104777520A (en) | Automatic moving target checking system based on laser scanner | |
| CN101351701B (en) | Suspension system and scanning method | |
| CN204166147U (en) | Promote the X-radiation imaging safe examination system of applicable value index | |
| CN107664774A (en) | radiation checking system and method | |
| CN207689689U (en) | Radiation checking system | |
| CN101349657A (en) | Passenger car radiation imaging detection system | |
| CN106442585A (en) | Back scattering radiation imaging system | |
| CN205670194U (en) | Detecting system based on back scattering imaging | |
| CN108510756B (en) | A kind of detection system and detection method of the road incidents based on laser measuring technology | |
| CN207096133U (en) | Radiation checking system | |
| CN206420797U (en) | Back-scatter radiation imaging system | |
| CN102012527A (en) | Mobile X-ray inspection vehicle and inspection method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination |