CN205809324U - Beam exposure apparatus and security detection equipment - Google Patents
Beam exposure apparatus and security detection equipment Download PDFInfo
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- CN205809324U CN205809324U CN201620509536.0U CN201620509536U CN205809324U CN 205809324 U CN205809324 U CN 205809324U CN 201620509536 U CN201620509536 U CN 201620509536U CN 205809324 U CN205809324 U CN 205809324U
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Abstract
A kind of beam exposure apparatus and security detection equipment, including: radiographic source, it is used for providing ray；Shield shell, has for accommodating described radiogenic chamber and the opening with described chamber so that described ray can be radiated by described outward opening；Travel mechanism, is used for making the most described shield shell of described radiographic source move between the first position and the second position；Wherein, in described primary importance, described radiographic source is directed at described opening so that described ray is radiated by described outward opening；In the described second position, described radiographic source deviates described opening so that described ray can not be radiated by described outward opening.Thus improve shutter opening and the closing velocity of beam exposure apparatus.
Description
Technical field
This utility model relates to Application of Nuclear Technology field, particularly relates to a kind of beam exposure apparatus and peace
Entirely detect equipment.
Background technology
At present, AT STATION, subway, airport, customs, harbour, nuclear power station, government bodies, postal inspection
Center, law court, Conference Room etc. have been widely used radiological safety detection equipment, are passed by ray
Object under test, another side the detector arranged carries out signals collecting, obtains ray and penetrates different material
The intensity of rear decay gained, with differentiate the density of detection object, obtain different gray level images, and
Object or vehicle are carried out safe examination.
Known a kind of for high capacity waggon, the dual-projection radiant image detection technique of container, Qi Zhongtong
Crossing and arranging isotope is radiation source.Radiation source is commonly placed in thick and heavy screened room, at screened room
On offer the launch hole of divergent-ray, have function of shielding shutter can by move back and forth make described
Launch hole is blocked or exposes, so that ray can penetrate from launch hole with certain frequency,
Examined object is detected.But owing to this shutter structure is overweight so that the unlatching of shutter,
Closing velocity is slow, and impulsive force is big, it is impossible to meet detection needs.
Accordingly, it would be desirable to a kind of shutter opens and closes, speed is fast, impact little beam exposure apparatus and safety inspection
Measurement equipment.
Utility model content
A kind of beam exposure apparatus is provided according to an aspect of the present utility model, including: radiographic source,
For providing ray；Shield shell, have for accommodate described radiogenic chamber and with described chamber
The opening of room connection so that described ray can be radiated by described outward opening；Travel mechanism, uses
Move between the first position and the second position in making the most described shield shell of described radiographic source；
Wherein, in described primary importance, described radiographic source is directed at described opening so that described ray passes through institute
State outward opening radiation；In the described second position, described radiographic source deviates described opening so that described
Ray can not be radiated by described outward opening.
Beam exposure apparatus of the present utility model can be between the first position and the second position by radiographic source
Move switching, so that radiographic source externally can radiate by being directed at realization with opening, or
Make radiographic source drift out cause for gossip now to stop external radiation.It is significantly less weight than shield shell due to radiogenic
Weight, such that it is able to realize higher shutter to open and close speed, it is also possible to reduce and shield shell is produced
Impulsive force.
According to an aspect of the present utility model, described radiographic source is isotope radioactive source.
According to an aspect of the present utility model, described radioactive source is60Co、137Cs、192Ir、75Se
In one of which.
According to an aspect of the present utility model, described travel mechanism is connected with described radiographic source, makes institute
State radiographic source and carry out straight reciprocating motion.
According to an aspect of the present utility model, described travel mechanism includes driving cylinder or hydraulic cylinder
Or electric pushrod or electric magnet, be used for driving described radiographic source to carry out straight reciprocating motion.
According to an aspect of the present utility model, described travel mechanism is connected with described radiographic source, makes institute
State radiographic source to be rotated.
According to an aspect of the present utility model, described travel mechanism includes rotary part, described ray
Source relative to described rotary part rotation axis off-center arrange.
According to an aspect of the present utility model, described shield shell also includes movable part, this movable part
Described opening can be closed.
According to an aspect of the present utility model, described opening is slit-shaped, so that by described opening
The ray of radiation forms scanning plane.
Also provide for a kind of security detection equipment according to another aspect of the present utility model, including above-mentioned it
The beam exposure apparatus of one.
Accompanying drawing explanation
The feature of this utility model exemplary embodiment, advantage and technology are described below with reference to the accompanying drawings
Effect.
Fig. 1 is the main TV structure schematic diagram illustrating the beam exposure apparatus according to this utility model embodiment；
Fig. 2 is the plan structure schematic diagram of the beam exposure apparatus of Fig. 1；
Fig. 3 is the beam exposure apparatus cross-sectional view along A-A direction of Fig. 2；
Fig. 4 is that the main TV structure illustrating another beam exposure apparatus according to this utility model embodiment shows
It is intended to；
Fig. 5 is the left view structural representation of the beam exposure apparatus of Fig. 4；
Fig. 6 is the main TV structure illustrating another beam exposure apparatus according to this utility model embodiment
Schematic diagram；
Fig. 7 is the plan structure schematic diagram of the beam exposure apparatus of Fig. 6；
Fig. 8 is the beam exposure apparatus cross-sectional view along B-B direction of Fig. 7.
Detailed description of the invention
Feature and the exemplary embodiment of of the present utility model various aspects are described more fully below.Under
In the detailed description in face, many details are explained and illustrated, in order to is provided this practicality
Novel comprehensive understanding.But, it will be apparent to those skilled in the art that this practicality is new
Type can be implemented in the case of some details in need not these details.Below to embodiment
Description be only used to by describe example of the present utility model provide to of the present utility model more preferably
Understanding.This utility model is not limited to any concrete configuration set forth below, but without departing from this
Cover on the premise of utility model spirit structure of the present utility model and parts are made any amendment,
Replace and improve.In the the accompanying drawings and the following description, it is shown without known structure and technology, to keep away
Exempt from understanding that the technical solution of the utility model causes unnecessary puzzlement.
Fig. 1 is the main TV structure schematic diagram of the beam exposure apparatus according to this utility model embodiment, penetrates
Beam irradiating apparatus is mountable in the sense channel of polytype security detection equipment (not shown),
For launching detection to examined object (exemplarily, such as vehicle or container) as required
Ray, coordinates the detector arranged in sense channel and other unit to detect detection object.
Please also refer to the plan structure schematic diagram of the beam exposure apparatus in the Fig. 1 shown in Fig. 2, with
And the beam exposure apparatus in the Fig. 2 shown in Fig. 3 is along the cross-sectional view in A-A direction.Ray
Irradiation unit includes shield shell 10 and the radiographic source 20 being arranged in the chamber within shield shell 10,
Having the opening 11 with chamber on shield shell 10, the ray radiated by opening 11 is formed to be swept
Retouch face, and beam exposure apparatus make radiographic source 20 move relative to this opening 11 by travel mechanism,
Described beam exposure apparatus is configured to: be directed at by radiographic source 20 or deviate opening 11
Realize being turned on or off (i.e. to emission detection ray or stopping of beam exposure apparatus shutter
Penetrate detection ray).
According to an embodiment of the present utility model, specifically, shield shell 10 uses and has shielding
The material of performance is made, and it has preferable shield effectiveness and higher intensity.Such as: can pass through
Lead, tungsten, metal or the high desnity metal such as tungsten alloy, uranium 238 or alloy are made.Its main body in
Oval-shaped ball structure, is mountable in the beam exposure apparatus mounting seat of sense channel, and inside has
Accommodate the chamber of radiographic source 20, and the opening 11 arranged on shield shell 10 irradiates need according to reality
Want can select to offer into circular port or in slit-shaped openings, exemplarily, such as Fig. 1 or Fig. 2 institute
Showing, can directly offer opening 11 in shield shell 10 main body, the position of certain opening 11 is permissible
Position according to radiographic source in chamber 20 determines, as long as disclosure satisfy that radiographic source 20 has and can be directed at out
The primary importance of mouth 11 or the second position of deviation opening 11.
Owing to the opening 11 of this utility model embodiment is opened in oval-shaped ball structure, work as opening
11 when being slit-shaped, and it selects to offer angle on shield shell 10 maximizing.Make ray
Irradiation unit can have bigger subtended angle while ensureing good shield effectiveness, i.e. presents wider
Swept area.Therefore can be arranged to, as far as possible near detection object, reduce shared by whole detection equipment
Space.In certain embodiments, when opening 11 is slit-shaped, sufficiently thick because itself having again
Degree, it is also possible to use opening 11 as the collimator of beam exposure apparatus, be used for drawing detection ray
And detection ray is carried out the constraint of shapes and sizes, make ray be collimated into radiographic source 20 as pushing up
Bigger sectorial area that put, that can relate to whole detection object, so can not only ensure to penetrate
The ray that line source 20 provides do not repeats, the most blank and without dead angle, detection ray can be made again with corresponding
Detector (not shown) be strictly directed at, improve detection efficiency and the detection picture quality that presents,
It is thus possible to measuring targets detects more accurately.
Shield shell 10 is possible to prevent in chamber the ray launched from except other parts outside mouth 11
Reveal, provide good shielding space to prevent ray for chamber and reveal.Certainly, above-mentioned shielding case
The structure of body 10 is not limited to this, for ensureing that its thickness is uniformly distributed and is easily installed, and the present embodiment
In shield shell 10 use elliptical shape ball body structure, it can also be square in other embodiments
Body, cylinder or other shell structure, as long as its thickness disclosure satisfy that shielding needs.
According to embodiment of the present utility model, radiographic source 20 is installed in chamber by installation portion, because of
This chamber within above-mentioned shield shell 10 is configured accordingly according to the shape of radiographic source 20 installation portion.
Primary importance and the second position is formed according to radiographic source 20 and opening 11 mated condition each other.On and
State travel mechanism and then can make radiographic source 20 relative to opening 11 between the first position and the second position
Move.
Certainly, this utility model does not limits for the type of radiographic source 20, according to this utility model
Embodiment, radiographic source 20 can be such as: x-ray source or gamma ray projector.Wherein X-ray
Source includes X-ray machine and electron accelerator；Gamma ray projector includes isotope radioactive source, specifically, permissible
Including:60Co、137Cs、192Ir、75Se, it is preferred to use60Co, its energy is high, can coordinate opening
The 11 relatively large angles provided are to form stronger sector scanning face, and measuring targets is carried out the most accurately
Scanning Detction.
For being more fully understood that how radiographic source irradiation unit of the present utility model realizes unlatching and the pass of shutter
Close, exemplarily several rays in this utility model embodiment will be shone according to Fig. 3 to Fig. 8 below
Injection device illustrates.
Refer to Fig. 3, according to an embodiment of the present utility model, specifically, travel mechanism with penetrate
Line source 20 connects, and drives radiographic source 20 to carry out straight reciprocating motion, is in realizing its opposed open
Primary importance or the second position.Specifically, as it can be seen, be to ensure that radiographic source 20 is past at straight line
Stationarity in multiple motion and safety, the chamber of shield shell is to be perpendicular to opening 11 arrange
Cylindrical hole, the mounting rod 21 that radiographic source 20 is connected by two ends is slidably mounted in chamber,
And for ensureing that ray will not leak from through hole, mounting rod 21 uses shielding material to make.Example
Property, coordinate with the convex jointing part of mounting rod 21 even by arranging the recessed portion that connects at radiographic source 20 involucrum two ends
Connecing, certain radiographic source 20 can also be coordinated with mounting rod 21 by other connected modes.
Above-mentioned travel mechanism is cylinder 30, and cylinder 30 is connected transmission with mounting rod 21, or by even
Extension bar indirectly coordinates transmission with mounting rod 21, certain this utility model to cylinder 30 and mounting rod 21 it
Between connected mode do not limit, as long as being capable of the most dismountable fixing connect.
Controlling cylinder 30 to start, drive installation bar 21 carries out linear reciprocation fortune along its axial direction in the chamber
Dynamic, radiographic source 20 can be realized and move, switch between the first position and the second position.At some
In embodiment, the cross section of mounting rod 21 can also be square, rectangle or other shapes,
As long as it coordinates with chamber can realize straight reciprocating motion.
And travel mechanism can also be hydraulic cylinder or electric pushrod or electric magnet, certain hydraulic cylinder
Similar with cylinder 30 to the drive form of radiographic source 20 mounting rod 21 with electric pushrod, therefore repeat no more.
Certainly this utility model does not limits for above-mentioned travel mechanism, as long as drive force can be provided to pacify
Dress bar 21 carries out straight reciprocating motion, it is achieved radiographic source 20 can be directed at or deviate opening.
In other examples, it is also possible to use other motor drive mechanisms as the drive mechanism of radiographic source 20,
Such as can also use non-immediate type of drive, exemplarily, motor driven gear and tooth can be passed through
Bar structure provides the driving force of linear motion for mounting rod 21, and wherein, tooth bar is connected with mounting rod 21,
Motor is by driving pinion rotation, it is achieved the tooth bar engaged with gear carries out straight reciprocating motion, thus
Mounting rod 21 is driven to carry out straight reciprocating motion.The most such as, drive mechanism can also use motor to drive
Dynamic feed screw nut motion, thus realize connected mounting rod 21 and drive radiographic source 20 to carry out straight line
Move back and forth.Certain above-mentioned drive mechanism is not necessarily intended to be provided driving force by motor, implements at other
Example can also select other can provide the mechanism of power or be substituted by manual operation, wherein, motor
Can directly drive and can also be driven by connection reducer.
By radiographic source 20 straight reciprocating motion in the chamber, it is achieved be directed at opening in primary importance
11 or control the opening and closing of shutter at second position deviation opening 11, due to radiographic source 20 with
And the volume of mounting rod 21 is little, light weight, make beam exposure apparatus of the present utility model the most than ever
By arranging single shutter opening or closing structure outside device in beam exposure apparatus, permissible
It is effectively improved the opening and closing speed of shutter, avoids conventional shutter opening or closing structure simultaneously
The impulsive force brought to device itself, thus extend the service life of beam exposure apparatus.And due to
The opening speed of shutter is fast, and radiation subtended angle can control, and the most exemplarily, is examining vehicle
During survey, can be when driver and crew drive vehicle entrance sense channel, quick control shutter opening,
After car body in addition to driver's cabin and belongings are carried out rapid irradiance, vehicle can be made to sail out of detection
Passage, it is possible to save dragging system, simplifies the structure of security detection equipment cost-effective.
According to an embodiment of the present utility model, refer to Fig. 4, according to this utility model embodiment
The main TV structure schematic diagram of another beam exposure apparatus and Fig. 5 shown in the ray shown in Fig. 4 shine
The left view structure chart of injection device, is formed with movable part 52 by cutting in the main body of shield shell 50,
It is set to shield shell 50 main body relatively to move, by movable part 52 to away from shielding case
Body 50 main direction moves a predeterminable range can form slit-shaped openings 51, can set as required
Determine opening 51 width.As it is shown in figure 5, this movable part 52 is for present in shield shell 50 horizontal direction
Cutting angle less than 180, certainly according to the angle needs of radiating surface, movable part 52 can also be existed
The cutting angle of horizontal direction adjusts accordingly.
According to embodiment of the present utility model, movable part 52 also can be connected with cylinder 40, at cylinder 40
Driving effect under carry out straight reciprocating motion in the horizontal direction, away from shield shell 50 main part
Or reset.It is arranged as the redundancy of beam exposure apparatus, can be in the drive mechanism of radiographic source 20
Break down, or in the case of the mounting rod 21 of radiographic source 20 connects extremely or ruptures, pass through
Cylinder 40 drives movable part 52 to move, and is resetted by movable part 52 in time, makes opening of shield shell 50
Mouthful it is closed, thus when ensureing the drive mechanism exception of ray, does not haves a radiation leakage accident and prestige
Side of body personal safety, thus increase the safety and reliability of system.Certainly, the straight line of movable part 52
Reciprocating motion is not limited to be driven by cylinder 40, and this cylinder 40 is equally by above-mentioned driving radiographic source
Any drive mechanism of 20 straight reciprocating motions is substituted.Movable part 52 also can be applied to this practicality
In any one beam exposure apparatus in new embodiment, arrange as redundancy or realize shutter
Open and close, and the volume of movable part 52 is little, operates light, it is to avoid prior art occurs
Beam exposure apparatus at shutter opening and when closing by bigger impulsive force.
Refer to Fig. 6 show according to the main TV structure of the another beam exposure apparatus of this utility model embodiment
It is intended to, the plan structure schematic diagram of the beam exposure apparatus in the Fig. 6 shown in Fig. 7, and Fig. 8 shows
Beam exposure apparatus in the Fig. 7 gone out is along the cross-sectional view in B-B direction.New according to this practicality
The embodiment of type, travel mechanism is connected with radiographic source 20, drives radiographic source 20 to be rotated,
To realize it and to be in primary importance or the second position relative to opening 61.Specifically, such as figure institute
Showing, be provided with rotary part 22 in chamber, its one end forms rotary shaft 23 and is connected with rotary cylinder 70,
Drive rotary shaft 23 to rotate by rotary cylinder 70, thus realize rotary part 22 drive and be provided thereon
Radiographic source 20 rotate, make radiographic source 20 can be in rotation process primary importance (alignment opening
61) or be in the second position (deviation opening 61).Certainly, radiographic source 20 can be made as required
It is continuously in first position examined object is persistently scanned, or is driven by travel mechanism
Radiographic source 20 mobile handoff the most between the first position and the second position, to examined object
Carry out compartment of terrain scanning.
Owing to radiographic source 20 is little with the volume of rotary part 22, operate light, therefore improving ray
While the shutter opening of irradiation unit and closing velocity, it is also possible to avoid the occurrence of of the prior art because of
The enormous impact power problem that shutter opening and closing motion bring to device itself.
Exemplarily, rotary part 22 is disc structure, and chamber is to be available for rotary part 22 to rotate
Rotary space, for ease of the rotary part 22 with radiographic source 20 is put in chamber, offer into
Source channels 63, is provided with after the rotary part 22 of radiographic source 20 puts into chamber, for avoiding ray to occur
Leakage, loads shield 80 and seals it into source channels 63.Certainly two halves can also be passed through
Structure docking forms shield shell 60, i.e. need not be separately provided into source channels 63, can simplify ray
The structure of irradiation unit.
Certainly the mechanism that this utility model carries out rotating for driving rotary shaft 23 in travel mechanism is the most not
It is limited to this, as long as this drive mechanism is capable of driving rotary shaft 23 to drive radiographic source 20 to rotate
?.The most such as can also be directly connected to carry out transmission by rotary shaft 23 and motor
Or indirectly drive rotary shaft 23 to move by motor connection reducer, it is also possible to can be held by other
The mechanism of row rotary motion is driven.
Rotary part 22 in the present embodiment is set to disc structure so that it is rotatable drive radiographic source
20 mobile handoff between the first position and the second position, certainly, rotary part can also be tied for other
Structure, such as, can connect a swing arm in rotary shaft 23 lower end, and the centre position of swing arm with
Rotary shaft 23 is fixed, and it has swing space or revolution space in the chamber, and radiographic source 20 is installed
In one end of swing arm, when rotary shaft 23 drives swing arm to swing or in the middle of swing arm to be
When axle is rotated, it is achieved drive radiographic source 20 to carry out between the first position and the second position
Mobile handoff.
Certainly, the travel mechanism that radiographic source 20 can be driven in this utility model to carry out moving is not limited to this,
In other embodiments, such as can also be set to hang down by the chamber of the shield shell 60 shown in Fig. 8
The straight fan-shaped cavity configuration forming plane in opening 61, arranges a swing arm, radiographic source 20 in the chamber
It is installed on swing arm, makes swing arm swing at fan-shaped intracavity by swing mechanism, thus can carry
Dynamic radiographic source 20 moves switching between the first position and the second position.Certainly, travel mechanism
Other structure can also be included.
In the present embodiment, the opening 61 of shield shell 60 is similar to above-described embodiment, is all logical
The part-structure crossing cutting shield shell 60 main body is formed, but unlike that above-described embodiment is this
The cross section of the movable part 62 cutting formation in embodiment is sector structure so that movable part 62 can paste
Close its inclined cut face elevated along inclined-plane aspect or transfer.Movable part 62 can also serve as superfluous
Remaining setting is connected with drive mechanism, when the drive mechanism of rotary part or rotary part breaks down
In time opening 61 is closed, and owing to movable part 62 volume is little, operate light, equally can conduct
Control shutter opening and the structure of closedown, it is to avoid prior art occurs at shutter opening with when closing
Beam exposure apparatus is by bigger impulsive force.
The security detection equipment (as a example by vehicle detection) provided according to this utility model embodiment,
It is provided with above-mentioned beam exposure apparatus, and described beam exposure apparatus is mountable to safety detection
The bottom surface of the sense channel of equipment, end face or side.It is preferably beam exposure apparatus safety in inspection
Survey the bottom surface of passage, owing to the beam exposure apparatus in this utility model embodiment has bigger radiation
Subtended angle, during detection, is installed on the bottom surface of sense channel, keeps between detection vehicle
Closer distance has wider swept area simultaneously, is conducive to presenting relatively sharp detection image.
The acute embodiment of the present utility model of root, above-mentioned security detection equipment also include control unit with
And for the sensor detecting the vehicle to be detected in sense channel, sensor detects movement
After the sense channel of target entrance security detection equipment and driver's cabin cross beam exposure apparatus, will letter
Breath is transmitted in control unit, and control unit i.e. controls the roentgenization dress being arranged in described sense channel
Travel mechanism's work in putting, drives radiographic source to move the opening part to shield shell, and is located at detection
Detector cooperation in passage is scanned detection to vehicle to be detected, certainly, can make as required to penetrate
Line source is continuously in opening part and is scanned detection vehicle or is driven radiographic source week by travel mechanism
Detection vehicle is scanned by the motion of phase property ground.When Sensor monitoring to detection vehicle complete detection after,
Again information is transmitted in control unit, control unit i.e. control travel mechanism drive radiographic source move to
The second position, and make travel mechanism quit work, vehicle can roll sense channel away from.In the present embodiment
Security detection equipment owing to being provided with above-mentioned beam exposure apparatus, and can be according to vehicle to be detected
Entrance situation controls quickly being turned on or off of the shutter of beam exposure apparatus, thus to roentgenization
Device carries out convenient and swift and reasonably controls, while improving detection efficiency, it is ensured that testing result
Accuracy, and avoid beam exposure apparatus itself to be impacted.
Claims (10)
1. a beam exposure apparatus, including:
Radiographic source, is used for providing ray；
Shield shell, have for accommodate described radiogenic chamber and with the opening of described chamber
Mouthful so that described ray can be radiated by described outward opening；
Travel mechanism, is used for making the most described shield shell of described radiographic source at primary importance and second
Move between putting；
Wherein, in described primary importance, described radiographic source is directed at described opening so that described ray leads to
Cross the radiation of described outward opening；In the described second position, described radiographic source deviates described opening so that
Described ray can not be radiated by described outward opening.
Beam exposure apparatus the most according to claim 1, wherein, described radiographic source is isotope
Radioactive source.
Beam exposure apparatus the most according to claim 2, wherein, described radioactive source is60Co、137Cs、192Ir、74One of which in Se.
Beam exposure apparatus the most according to claim 1, wherein, described travel mechanism is with described
Radiographic source connects, and makes described radiographic source carry out straight reciprocating motion.
Beam exposure apparatus the most according to claim 4, wherein, described travel mechanism includes driving
Dynamic air cylinder or hydraulic cylinder or electric pushrod or electric magnet, be used for driving described radiographic source to carry out directly
Line moves back and forth.
Beam exposure apparatus the most according to claim 1, wherein, described travel mechanism is with described
Radiographic source connects, and makes described radiographic source be rotated.
Beam exposure apparatus the most according to claim 6, wherein, described travel mechanism includes rotation
Rotation member, described radiographic source relative to described rotary part rotation axis off-center arrange.
Beam exposure apparatus the most according to claim 1, wherein, described shield shell also includes
Movable part, this movable part can close described opening.
Beam exposure apparatus the most according to claim 1, wherein, described opening is slit-shaped,
So that the ray formation scanning plane radiated by described opening.
10. a security detection equipment, including: the ray as described in any one in claim 1-9
Irradiation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509536.0U CN205809324U (en) | 2016-05-30 | 2016-05-30 | Beam exposure apparatus and security detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509536.0U CN205809324U (en) | 2016-05-30 | 2016-05-30 | Beam exposure apparatus and security detection equipment |
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| CN205809324U true CN205809324U (en) | 2016-12-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891898A (en) * | 2016-05-30 | 2016-08-24 | 清华大学 | Ray irradiation device and safety detection equipment |
| CN107515427A (en) * | 2017-08-25 | 2017-12-26 | 清华大学 | Beam exposure apparatus and security detection equipment |
-
2016
- 2016-05-30 CN CN201620509536.0U patent/CN205809324U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891898A (en) * | 2016-05-30 | 2016-08-24 | 清华大学 | Ray irradiation device and safety detection equipment |
| CN107515427A (en) * | 2017-08-25 | 2017-12-26 | 清华大学 | Beam exposure apparatus and security detection equipment |
| WO2019037488A1 (en) * | 2017-08-25 | 2019-02-28 | 清华大学 | Ray irradiation apparatus and safety detection device |
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