CN104198507A - Shutter device for shielding rays and ray scanning imaging system - Google Patents
Shutter device for shielding rays and ray scanning imaging system Download PDFInfo
- Publication number
- CN104198507A CN104198507A CN201410473037.6A CN201410473037A CN104198507A CN 104198507 A CN104198507 A CN 104198507A CN 201410473037 A CN201410473037 A CN 201410473037A CN 104198507 A CN104198507 A CN 104198507A
- Authority
- CN
- China
- Prior art keywords
- shutter
- ray
- protection body
- passage
- shielding
- 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.)
- Granted
Links
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The invention provides a shutter device for shielding rays and a ray scanning imaging system. The shutter device for shielding the rays comprises a ray transmitter with a shutter, a secondary collimator, a detector and a control system, wherein the ray transmitter comprises a ray source, a ray source protection body wrapping the ray source, and a collimator hermetically connected with the ray source protection body; the ray source protection body is provided with a ray outlet; the collimator is provided with a collimating passage communicated with the ray outlet; the collimating passage is communicated with the outside; the collimator couples and collimates the rays transmitted from the ray source; the shutter is arranged inside the collimator; the shutter can close or open the whole collimating passage. The shutter device for shielding rays is especially applicable to online fast security inspection equipment; the ray source shutter closes to shield the rays, and automatically shifts for scanning 'radiant energy'; the head part of a vehicle is scanned through low-energy rays and the detected box body is scanned through high-energy rays; the shutter device for shielding the rays can protect drivers passing through a detection device and can quickly provide clear and complete scanning images.
Description
Technical field
Patent of the present invention relates to a kind of safety detection radiation imaging apparatus, especially refers to a kind of safety detection radiation imaging apparatus with the shutter device used of shielding ray.
Background technology
In life, a lot of places all need to be equipped with large-scale rays safety detection apparatus, as customs, airport, frontier defense, prison, harbour, postal row bag, transportation and logistics goods yard etc. have the online large radiation imaging device that can't harm safety inspection mostly.The radiant image technology of online harmless safety inspection is that sigmatron or the gamma-rays by x-ray apparatus or radiographic source transmitting penetrates tested article in non-contacting situation, thereby obtains the fluoroscopy images of inspected object.Early stage large radiation imaging device is all after all personnel withdraws, to start goods to scan again.In order to improve safety check efficiency, the development of safety check technology in addition, each rays safety detection apparatus manufacturer starts to produce the direct through type rays safety detection apparatus of driver driving lorry, i.e. " gate-type " container car or van rays safety detection apparatus.The advantage of this kind equipment is that detection efficiency is high, driver's needn't get off " dodging ".But problem be driver as directly passed through between radiographic source and detector, can be subject to dosage radiation significantly, and driver may pass through more than once every day, human body is had to injury.Therefore mostly adopt at present " headstock is dodged " method, judge that pilothouse passes through principal ray Shu Houzai and " opens bundle " and scan, carry out image acquisition.
" headstock is dodged " generally has automatically and fixes two kinds of patterns." automatically dodging pattern " is that " dodging " implemented in the gap of differentiating between headstock (pilothouse) and tested casing by various photoelectric sensors, until headstock (pilothouse), by rear and tested casing, by principal ray Shu Shizai, " open bundle " and scan, to guarantee that driver is healthy.But due to various countries produce and the vehicle used multifarious, some headstocks and container spacing be more than 2 meters, only tens centimetres of some headstocks and container spacing.Between headstock (pilothouse) and tested casing, also have the foreign material such as cable, gas outlet, and the on-the-spot speed of a motor vehicle also cannot determine, often judgement is inaccurate.Therefore existing mostly employing " fixedly dodging pattern ".I.e. " maximum is dodged " headstock (pilothouse) length (for example 3.5 meters) of not opening bundle of artificial setting, then " opening bundle " scanning.But as while running into less headstock (pilothouse) length (as 2.5 meters), and headstock (pilothouse) and tested casing spacing be again when very little (tens centimetres), will " drain sweep " a part of tested casing (front end), cause safety check " dead angle ".Because radiographic source " goes out bundle ", to stable, need certain hour just can make roentgen dose X be increased to ideal value afterwards again, also make the tested casing of front end cause penetration power inadequate because ray energy is unstable.While just having no time to attend to each scanning when this external energy is unstable real-time " calibration " of detector, can cause image " background " not " totally " and affect picture quality, above-mentioned two kinds of patterns all may cause scan image front end damaged or unintelligible (particularly the speed of a motor vehicle very fast and cannot determine time).Therefore need scanning to obtain complete, clear goods image simultaneously, can farthest protect the driver who particularly everyday needs Multiple through then out gate-type rays safety detection apparatus again, the impact of not raying and scattered dose, becomes current problem demanding prompt solution.
Actual all kinds of radiographic sources, accelerator class particularly, to preset the energy that (automatically adjusting) goes out bundle by follow procedure, this requires low part to penetration power for example first with low energy ray, to scan headstock (pilothouse), then this requires high part to penetration power with high-energy ray, to scan railway carriage (body).But the time of existing all kinds of radiogenic " energy switchings " is all longer, at least more than the several seconds, so the method cannot be applied in actual checkout equipment.
Summary of the invention
For addressing the above problem, the invention provides a kind of shutter device and method that QA shielding ray is used that have, method by " stopping fast " makes " energy switching " become possibility, while opening bundle scanning, ray energy is constant, but penetrate x radiation x dosage in the process of headstock (pilothouse) part and reduce to through stopping the degree that human body can short-term be accepted, and x radiation x dosage in tested goods (casing) part process is met to the requirement of safety check high penetrating power and sharpness, provide again complete simultaneously, scan image clearly, overcome existing safety check hidden danger.
For achieving the above object, the present invention adopts following technical scheme:
A kind ofly shield the shutter device that ray is used, comprise radiographic source 101, described radiographic source 101 outer wrapping radiographic source protection bodies 102, and the collimating apparatus 103 being tightly connected with radiographic source protection body 102, wherein, described radiographic source protection body 102 has ray outlet 1021, described collimating apparatus 103 has the collimation path 10 31 that exports 1021 UNICOMs with ray, described collimation path 10 31 and extraneous UNICOM, the ray that 103 pairs of radiographic sources of described collimating apparatus 101 the penetrate collimation that is coupled, in described collimating apparatus 103, shutter 106 is set, described shutter 106 can be closed whole collimation path 10 31 rapidly or open.
Wherein, comprise and drive the driver element 105 of shutter 106 and the shutter protective stent 104 of an overfill protection shutter 106.
Wherein, it is 1021 rectangular that described ray exports, described collimating apparatus 103 comprises and is fixed on the first baffle plate 1032, the second baffle 1033 that rectangle ray on described radiographic source protection body 102 outer walls exports 1021 both sides, described the first plate washer 1032, second baffle 1033 shapes are identical and mutual parallel placement, between described the first plate washer 1032, second baffle 1033 at a distance of forming collimation path 10 31, described the first plate washer 1032, second baffle 1033 upper ends, lower end by connecting the 3rd baffle plate 1034, the 4th baffle plate 1035 seals.
Wherein, described shutter protective stent 104 is fixed on the baffle plate outer wall that baffle plate arranges shutter 106 positions, described shutter 106 is for blocking the slide block 1061 of whole collimation path 10 31, described shutter protective stent 104 inside arrange the chute 1062 sliding for slide block 1061, described chute 1062 extends to and intersects with described collimation path 10 31 and final and another baffle plate overlap joint in the baffle plate that joins with it, and the driver element 105 that drives slide block 1062 to slide is set on described shutter protective stent 104.
Wherein, described shutter protective stent 104 comprises that described the first plate washer 1032 middle parts arrange the first shutter protection body 2041 with half-cylindrical inner chamber, described second baffle 1032 is symmetrical arranged the second shutter protection body 2042 identical with described the first shutter protection body 2041, described shutter 106 is the cylindrical block 205 that can rotate around self axis, the circular cylindrical cavity of described cylindrical block 205 is held in the half-cylindrical inner chamber formation staggered relatively of described the first shutter protection body 2041 and the second shutter protection body 2042, described the first shutter protection body 2041, the passage 2043 closing at a distance of formation and the interior match profiles of collimation path 10 31 between the second shutter protection body 2042, the inner endoporus 2051 closing with the interior match profiles of described passage 2043 that arranges of described cylindrical block 205, described cylindrical block 205 is placed in described circular cylindrical cavity and can rotates around self axis, described endoporus 2051, passage 2043, collimation path 10 31Ke UNICOM forms the collimation passage that ray is collimated, described shutter protective stent 104 upper ends or lower end arrange the driver element 105 that drives described cylindrical block 205 rotations.
Wherein, described shutter 106 is formed by stacking by least two blocks of different steel plate or stereotypes of thickness, and the steel plate of different-thickness and stereotype can combination in any.
Wherein, described driver element 105 is for providing hydraulic cylinder or the electromagnet of linear drives power.
Wherein, described driver element 105 is for providing oil motor, air motor, stepper motor or the servomotor of rotary driving force.
A ray scanning imaging system, comprises the ray emitter with shutter 106, also comprises:
Secondary collimator 304, is placed in described ray emitter dead ahead, and the ray being penetrated by described ray generator is collimated for the second time;
Detector 306, staggered relatively with described secondary collimator 304 intervals, between described detector 306 and described secondary collimator 304, form thing to be checked by district, described detector 306 receives ray signal and transforms and transmit;
And control system 307, for judging having or not of thing to be checked, during detection, control switch and the action of each parts.
Beneficial effect of the present invention is:
(1) the present invention is closed and is stopped large portion (or all) flying spot by radiation source shutter, and conversion scanning " emittance " automatically, by low-yield (dosage) scanning headstock (pilothouse) part, scans tested casing part with high-energy (dosage).Just can play protective action to the driver by checkout equipment, clear, complete car load image is provided rapidly again simultaneously.Be particularly suitable for container car, the van to there being personnel to drive and there is the online quick large-scale rays safety detection apparatus of enclosure space vehicle.
(2) if when wishing to reduce driver's radiation dose, check whether headstock keeps contraband goods, requirement obtains headstock scan image, can be by changing quantity or the thickness of slide block, cylindrical block, ray is penetrated, but penetrate x radiation x dosage in the process of block and reduced to human body acceptable scope, meanwhile, the going out to restraint roentgen dose X and still can provide complete scan image of reduction.
(3) radiographic source is without frequently opening, closing; it can be normally open; opening, closing to realize protection driver and controlling the time that produces image by shutter; extended radiogenic serviceable life; in addition, due to radiogenic " going out in advance bundle ", while starting to scan, roentgen dose X has reached ideal value; for " calibration " of detector and view data, accurately gather and created good condition, picture quality can be higher.
Accompanying drawing explanation
Fig. 1 is ray scanning imaging system front schematic view of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the front view of the embodiment of the present invention 1 portable shutter;
Fig. 4 is the vertical view of the portable shutter duty of the embodiment of the present invention 1;
Fig. 5 is another duty vertical view of Fig. 4;
Fig. 6 is the front view of the embodiment of the present invention 2 rotary shutters;
Fig. 7 is the vertical view of the rotary shutter duty of the embodiment of the present invention 2;
Fig. 8 is another duty vertical view of Fig. 7;
Fig. 9 is the rotary shutter slide block of the embodiment of the present invention 2 cross section structure schematic diagram;
Figure 10 is the portable shutter slide block of the embodiment of the present invention 1 cross section structure schematic diagram.
Number in the figure: the cylindrical block 2051-of 301-ray emitter 304-secondary collimator 305-thing 306-to be checked detector 307-control system 101-radiographic source 102-radiographic source protection body 103-collimating apparatus 104-shutter protective stent 105-driver element 106-shutter 1021-ray outlet 1031-collimation passage first baffle plate-1032 second baffle-1033 the 3rd baffle plate-1034 the 4th baffle plate-1035 1061-slide block 1062-chute 2041-first shutter protection body 2042-the second shutter protection body 205-endoporus 2043-passage.
Embodiment
Following examples are only for example of the present invention is clearly described, and the not restriction to embodiments of the present invention.For those of ordinary skill in the field; on the basis of following explanation, can also make other multi-form variation or changes, and these belong to apparent variation that spirit of the present invention draws or change still among protection scope of the present invention.
The ray scanning imaging system with the shutter device used of shielding ray provided by the invention, the harm of avoiding x radiation x to produce, obtains complete object image to be checked simultaneously fast, improves safety check efficiency.
As shown in Figure 1 and Figure 2, the ray scanning imaging system structure that the embodiment of the present invention provides, comprise the ray emitter 301 with radiation source shutter device, be placed in the secondary collimator 304 in described ray emitter 301 dead aheads, 304 pairs of rays that penetrated by described ray generator 301 of described secondary collimator collimate for the second time, ray after secondary collimator 304 has the radiation field size that can cover whole thing to be checked 305 short transverses, also comprise the detector 306 staggered relatively with described secondary collimator 304 intervals, between described detector 306 and described secondary collimator 304, form thing to be checked and pass through district, as Fig. 1, shown in Fig. 2, thing 305 to be checked is vehicle, when driver driving vehicle passes through district by thing to be checked, optical diode-scintillation crystal assembly in described detector 306 receives through inspected object band and detects after the ray of information, produce photon signal, through optical diode, become electric signal, by automated imaging after image acquisition units and graphics processing unit, also comprise control system 307, described control system 307 is included in the trigger switch of the detection thing to be checked of system front end installation, when detected vehicle 305 is during by quick check system, trigger PLC control system, ray emitter 301 triggers to be opened, radiographic source radiates X ray or gamma-rays to go out the progressive mode of beam dose, through very short time, reach and normally go out Shu Shuiping, shutter close during this period, when driver and pilothouse are by x radiation x scope, ray reaches while normally going out Shu Shuiping simultaneously, control system 307 is controlled shutter and is opened, scanning vehicle body provides complete scan image clearly.
Following examples are explaining to radiographic source shutter device concrete structure.
embodiment 1
As Fig. 3, Fig. 4, shown in Fig. 5, the structure of the radiation source shutter device that the embodiment of the present invention 1 provides, comprise radiographic source 101, described radiographic source 101 outer wrapping radiographic source protection bodies 102, and the collimating apparatus 103 being tightly connected with radiographic source protection body 102, described radiographic source protection body 102 has ray outlet 1021, described collimating apparatus 103 has the collimation path 10 31 that exports 1021 UNICOMs with ray, described collimation path 10 31 and extraneous UNICOM, the ray that 103 pairs of radiographic sources of described collimating apparatus 101 the penetrate collimation that is coupled, in described collimating apparatus 103, shutter 106 is set, described shutter 106 can close whole collimation path 10 31 or open.
Wherein, it is 1021 rectangular that described ray exports, described radiographic source protection body 102 walls have certain thickness, the height of described rectangle ray outlet 1021 increases gradually from inside to outside on the thickness direction of radiographic source protection body 102, described collimating apparatus 103 comprises and is fixed on the first baffle plate 1032 that rectangle ray on described radiographic source protection body 102 outer walls exports 1021 both sides, second baffle 1033, described the first plate washer 1032, identical and the mutual parallel placement of second baffle 1033 shapes, described the first plate washer 1032, between second baffle 1033, at a distance of forming, collimate path 10 31, described the first plate washer 1032, second baffle 1033 upper ends, lower end is by connecting the 3rd baffle plate 1034, the 4th baffle plate 1035 seals, described the first plate washer 1032, second baffle 1033, the 3rd baffle plate 1034, the collimation path 10 31 that the 4th baffle plate 1035 surrounds is along described ray, to export the continuation extension and amplification of 1021 inwall vergence directions.
Wherein, also comprise and drive the driver element 105 of shutter 106 motions and the shutter protective stent 104 of an overfill protection shutter 106.Described shutter protective stent 104 is fixed on the baffle plate outer wall that the first plate washer 1032 arranges shutter 106 positions, described shutter 106 is for blocking the slide block 1061 of whole collimation path 10 31, described shutter protective stent 104 inside arrange the chute 1062 sliding for slide block 1061, described chute 1062 is extending through the first plate washer 1032, through after described collimation path 10 31, final and second baffle 1033 overlaps, the driver element 105 that drives slide block 1061 to slide is set on described shutter protective stent 104, described driver element 105 is for providing the hydraulic cylinder of linear drives power, electromagnet, described slide block 1061 under driver element 105 drives in chute 1062 slidable adjustment ray go out bundle amount, or collimation path 10 31 opens or closes operation completely, while closing, ray is stopped, play protective action, while opening, make to collimate the unimpeded alignment procedure that completes of path 10 31, the controlled system 307 of described driver element 105 is controlled, control system 307 detects object location to be checked and sends corresponding control signal, during real work, as shown in Figure 4, when driver driving vehicle passes through district through thing to be checked, control system 307 detects and transmitted signal opening signal source 101 divergent-rays, slide block 1061 collimation path 10s 31 seal simultaneously, stop ray, ray reaches and normally goes out Shu Shuiping and need certain hour, interior driver can pass through safely x radiation x region by steering vehicle during this period, as shown in Figure 5, when driver and pilothouse are by after x radiation x scope, ray reaches while normally going out Shu Shuiping simultaneously, control system 307 is controlled protection slide block 1061 collimation path 10 31 is opened, make the ray scanning vehicle body of sufficient dosage that complete scan image is clearly provided, the distance that described slide block 1061 moves only needs 10-20mm, the about 0.1s of shutter opening time, protect to greatest extent driver not affected by x radiation x, also guaranteed the complete display of scan image simultaneously.
embodiment 2
As Fig. 6, Fig. 7, shown in Fig. 8, the structure of the radiation source shutter device that the embodiment of the present invention 2 provides, comprise radiographic source 101, described radiographic source 101 outer wrapping radiographic source protection bodies 102, and the collimating apparatus 103 being tightly connected with radiographic source protection body 102, described radiographic source protection body 102 has ray outlet 1021, described collimating apparatus 103 has the collimation path 10 31 that exports 1021 UNICOMs with ray, described collimation path 10 31 and extraneous UNICOM, the ray that 103 pairs of radiographic sources of described collimating apparatus 101 the penetrate collimation that is coupled, in described collimating apparatus 103, shutter 106 is set, described shutter 106 can close whole collimation path 10 31 or open.
Wherein, it is 1021 rectangular that described ray exports, described radiographic source protection body 102 walls have certain thickness, the height of described rectangle ray outlet 1021 increases gradually from inside to outside on the thickness direction of radiographic source protection body 102, described collimating apparatus 103 comprises and is fixed on the first baffle plate 1032 that rectangle ray on described radiographic source protection body 102 outer walls exports 1021 both sides, second baffle 1033, described the first plate washer 1032, identical and the mutual parallel placement of second baffle 1033 shapes, described the first plate washer 1032, between second baffle 1033, at a distance of forming, collimate path 10 31, described the first plate washer 1032, second baffle 1033 upper ends, lower end is by connecting the 3rd baffle plate 1034, the 4th baffle plate 1035 seals, described the first plate washer 1032, second baffle 1033, the 3rd baffle plate 1034, the collimation path 10 31 that the 4th baffle plate 1035 surrounds is continuation extensions and amplification that described ray exports 1021 inwall vergence directions.
Wherein, described shutter protective stent 104 comprises that described the first plate washer 1032 middle parts arrange the first shutter protection body 2041 with half-cylindrical inner chamber, described second baffle 1032 is symmetrical arranged the second shutter protection body 2042 identical with described the first shutter protection body 2041, described shutter 106 is the cylindrical block 205 that can rotate around self axis, the circular cylindrical cavity of described cylindrical block 205 is held in the half-cylindrical inner chamber formation staggered relatively of described the first shutter protection body 2041 and the second shutter protection body 2042, described the first shutter protection body 2041, the passage 2043 closing at a distance of formation and the interior match profiles of collimation path 10 31 between the second shutter protection body 2042, the inner endoporus 2051 closing with the interior match profiles of described passage 2043 that arranges of described cylindrical block 205, described cylindrical block 205 is placed in described circular cylindrical cavity and can rotates around self axis, when described cylindrical block 205 rotates to certain angle, make described endoporus 2051, during collimation path 10 31 UNICOM of passage 2043 and described shutter protective stent 104 both sides, described endoporus 2051, passage 2043 and collimation path 10 31 form the collimation passage that ray is collimated, described shutter protective stent 104 upper ends or lower end arrange the driver element 105 that drives described cylindrical block 205 rotations, described driver element 105 is for providing the oil motor of rotary driving force, air motor, stepper motor, servomotor, described cylindrical block 205 rotates and regulates ray to go out bundle amount under driver element 105 drives in circular cylindrical cavity, or collimation path 10 31 opens or closes operation completely, ray is stopped, play protective action, the controlled system 307 of described driver element 104 is controlled, control system 307 detects object location to be checked and sends corresponding control signal, during real work, as shown in Figure 7, when driver driving vehicle passes through district through thing to be checked, control system 307 detects and transmitted signal opening signal source 101 divergent-rays, simultaneously cylindrical block 205 rotations make endoporus 2051 not be communicated with passage 2043, collimation path 10 31 seals, stop ray, ray reaches and normally goes out Shu Shuiping and need certain hour, interior driver can pass through safely x radiation x region by steering vehicle during this period, as shown in Figure 8, when driver and pilothouse are by after x radiation x scope, ray reaches while normally going out Shu Shuiping simultaneously, control system 307 is controlled cylindrical block 205 rotations and is made endoporus 2051 and passage 2043 UNICOMs, thereby with collimation path 10 31 UNICOMs, make the ray scanning vehicle body of sufficient dosage that complete scan image is clearly provided, described cylindrical block 205 anglecs of rotation only need 15-30 °, the about 0.1s of shutter opening time, protect to greatest extent driver not affected by x radiation x, also guaranteed the complete display of scan image simultaneously.
In addition; in ray scanning imaging system embodiment provided by the invention; radiographic source 101 is without frequently opening, closing; it can be normally open; opening, closing to realize protection driver and controlling the time that produces image by shutter 302; extended the serviceable life of radiographic source 101; when tested vehicle enters sense channel; radiographic source just starts " going out bundle "; but now the shutter in shutter device is closed; beam can be by large portion or whole " stopping ", and the dosage of sense radiation is extremely low, but still can imaging.After headstock (pilothouse) safety radiographic source principal ray bundle, automatically open immediately shutter device shutter, scan image clearly, due to radiogenic " going out in advance bundle ", during scanning, ray has reached ideal value, " calibration " and accurate collection for detector have been created good condition, and picture quality can be higher.
Simultaneously, in radiation source shutter device embodiment provided by the invention, when wishing to reduce driver's radiation dose, do not wish the casing front end of undetected tested goods, can also check whether headstock (pilothouse) part keeps contraband goods, requirement obtains complete car load scan image, can be by changing described slide block 1061, the thickness of cylindrical block 205, or as Fig. 9, shown in Figure 10, by described slide block 1061, cylindrical block 205 is made by least 2 or the different steel plate of polylith thickness or stereotype stack and is made, the steel plate of different-thickness and stereotype can combination in any, make block thickness adjustable, due to the energy of all kinds of accelerators (Betatron betatron and LINAC linear accelerator etc.) with to go out beam dose rate different, so in shutter device, the stack thickness of shutter block is different, can adapt to different rays safety detection apparatus demands.The block number of opening in can chosen in advance shutter device for dissimilar radiographic source or the block of selecting different-thickness (material), block major part and go out beam line, the radiation dose that driver is subject to is reduced greatly, but can divide and carry out car load complete scan headstock (pilothouse) and chest portion.Adjust block, the stack thickness that choice for use is different, stops most of ray (as 90%), the 10%(about 10uSV of the suffered dosage of driver when not stopping).Annual suffered dosage is 3600uSV(to the maximum and amounts to 3.6mSV), meet the basic demand of international hygiene level of protection.If the whole stack thickness that provide in choice for use device, just stopping the each suffered dosage of most rays (as 99%) driver only has an appointment below 1uSV, if every day is by 3 times, annual suffered dosage maximum is only for 1080uSV(amounts to 1.08mSV), be significantly less than international hygiene level of protection.
The employing of radiation source shutter device, while making out bundle scanning, ray energy is constant, but penetrate x radiation x dosage in the process of headstock (pilothouse) part and reduce to through stopping the degree that human body can short-term be accepted, and x radiation x dosage in tested goods (casing) part process is met to the requirement of safety check high penetrating power and sharpness, complete, scan image is clearly provided again simultaneously, has overcome existing safety check hidden danger.
Claims (9)
1. one kind shields the shutter device that ray is used, comprise radiographic source (101), described radiographic source (101) outer wrapping radiographic source protection body (102), and the collimating apparatus (103) being tightly connected with radiographic source protection body (102), it is characterized in that, described radiographic source protection body (102) has ray outlet (1021), described collimating apparatus (103) has the collimation passage (1031) with ray outlet (1021) UNICOM, described collimation passage (1031) and extraneous UNICOM, the ray that described collimating apparatus (103) penetrates radiographic source (101) collimation that is coupled, shutter (106) is set in described collimating apparatus (103), described shutter (106) can be closed whole collimation passage (1031) rapidly or open.
2. the shutter device that the shielding ray as described in claim 1 is used, is characterized in that, comprises and drives the driver element (105) of shutter (106) and the shutter protective stent (104) of an overfill protection shutter (106).
3. the shutter device that shielding ray as claimed in claim 2 is used, it is characterized in that, described ray outlet (1021) is rectangular, described collimating apparatus (103) comprises the first baffle plate (1032) that is fixed on rectangle ray outlet (1021) both sides on described radiographic source protection body (102) outer wall, second baffle (1033), described the first plate washer (1032), identical and the mutual parallel placement of second baffle (1033) shape, described the first plate washer (1032), between second baffle (1033), at a distance of forming, collimate passage (1031), described the first plate washer (1032), second baffle (1033) upper end, lower end is by connecting the 3rd baffle plate (1034), the 4th baffle plate (1035) seals.
4. the shutter device that the shielding ray as described in claim 3 is used, it is characterized in that, described shutter protective stent (104) is fixed on the baffle plate outer wall that baffle plate arranges shutter (106) position, described shutter (106) is for blocking the slide block (1061) of whole collimation passage (1031), described shutter protective stent (104) inside arranges the chute (1062) sliding for slide block (1061), described chute (1062) extends to and intersects with described collimation passage (1031) and final and another baffle plate overlap joint in the baffle plate that joins with it, the driver element (105) that drives slide block (1062) to slide is set on described shutter protective stent (104).
5. the shutter device that the shielding ray as described in claim 3 is used, it is characterized in that, described shutter protective stent (104) comprises that described the first plate washer (1032) middle part arranges the first shutter protection body (2041) with half-cylindrical inner chamber, described second baffle (1032) is symmetrical arranged the second shutter protection body (2042) identical with described the first shutter protection body (2041), described shutter (106) is the cylindrical block (205) that can rotate around self axis, the circular cylindrical cavity of described cylindrical block (205) is held in the half-cylindrical inner chamber formation staggered relatively of described the first shutter protection body (2041) and the second shutter protection body (2042), described the first shutter protection body (2041), the passage (2043) closing at a distance of formation and the interior match profiles of collimation passage (1031) between the second shutter protection body (2042), the inner endoporus (2051) closing with the interior match profiles of described passage (2043) that arranges of described cylindrical block (205), described cylindrical block (205) is placed in described circular cylindrical cavity and can rotates around self axis, described endoporus (2051), passage (2043), collimation passage (1031) can UNICOM form the collimation passage that ray is collimated, described shutter protective stent (104) upper end or lower end arrange the driver element (105) that drives described cylindrical block (205) rotation.
6. the shutter device that the shielding ray as described in as arbitrary in claim 4-5 is used, it is characterized in that, described shutter (106) is formed by stacking block by least two blocks of above different steel plate or stereotypes of thickness, and the steel plate of different-thickness and the block of stereotype can be set arbitrarily combination.
7. the shutter device that the shielding ray as described in claim 4 is used, is characterized in that, described driver element (105) is for providing hydraulic cylinder or the electromagnet of linear drives power.
8. the shutter device that the shielding ray as described in claim 5 is used, is characterized in that, described driver element (105) is for providing oil motor, air motor, stepper motor or the servomotor of rotary driving force.
9. a ray scanning imaging system, is characterized in that, comprises and also comprises the have shutter ray emitter of (106):
Secondary collimator (304), is placed in described ray emitter dead ahead, and the ray being penetrated by described ray generator is collimated for the second time;
Detector (306), staggered relatively with described secondary collimator (304) interval, between described detector (306) and described secondary collimator (304), form thing to be checked by district, described detector (306) receives ray signal and transforms and transmit;
And control system (307), for judging having or not of thing to be checked, during detection, control switch and the action of each parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473037.6A CN104198507B (en) | 2014-09-16 | 2014-09-16 | Shield the shutter device and ray scanning imaging system of ray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410473037.6A CN104198507B (en) | 2014-09-16 | 2014-09-16 | Shield the shutter device and ray scanning imaging system of ray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104198507A true CN104198507A (en) | 2014-12-10 |
| CN104198507B CN104198507B (en) | 2017-06-16 |
Family
ID=52083832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410473037.6A Active CN104198507B (en) | 2014-09-16 | 2014-09-16 | Shield the shutter device and ray scanning imaging system of ray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104198507B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370676A (en) * | 2016-08-30 | 2017-02-01 | 北京华力兴科技发展有限责任公司 | Accelerator shielding vessel with collimating mechanism and container/vehicle inspection equipment |
| GB2543753A (en) * | 2015-10-21 | 2017-05-03 | Smiths Heimann Sas | Vehicle cabin inspection system and method |
| CN106908459A (en) * | 2017-04-06 | 2017-06-30 | 北京华力兴科技发展有限责任公司 | X-ray emitter installs cabin and vehicle detection apparatus |
| CN107361779A (en) * | 2016-05-13 | 2017-11-21 | 通用电气公司 | For stand and the interface of part |
| CN107861146A (en) * | 2017-12-26 | 2018-03-30 | 同方威视技术股份有限公司 | The twilight sunset test device of scintillator |
| CN110389387A (en) * | 2019-06-06 | 2019-10-29 | 上琛安防科技（上海）有限公司 | Intelligent X-ray security detection equipment collimation, radiographic source and detection acquisition system |
| CN110459338A (en) * | 2018-05-08 | 2019-11-15 | 清华大学 | Screened room, radiation source device and vehicle safety detection system |
| CN111781652A (en) * | 2020-06-30 | 2020-10-16 | 上海瑞示电子科技有限公司 | Ray shielding device, ray source and ray inspection equipment |
| CN113049614A (en) * | 2019-12-11 | 2021-06-29 | 同方威视技术股份有限公司 | Adjusting and positioning device and method for ray source assembly and radiation scanning imaging equipment |
| CN113884513A (en) * | 2021-08-19 | 2022-01-04 | 浙江华视智检科技有限公司 | Security check machine and cargo detection method |
| CN114019571A (en) * | 2021-09-29 | 2022-02-08 | 浙江华视智检科技有限公司 | Security inspection equipment and ray light path correction method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333462A (en) * | 2001-09-03 | 2002-01-30 | 北京埃索特核电子机械有限公司 | Equipment of cobalt 60 gamma ray source-cesium iodide or cadmium tungstate detector for checking container |
| CN1401997A (en) * | 2002-09-23 | 2003-03-12 | 清华大学 | Gamma-ray radiation source device for container inspecting system |
| CN1779445A (en) * | 2004-11-26 | 2006-05-31 | 清华同方威视技术股份有限公司 | Shutter structure of open and closed radioactive imaging checking system on train |
| US7352844B1 (en) * | 2004-01-30 | 2008-04-01 | Science Applications International Corporation | Method and system for automatically scanning and imaging the contents of a moving target |
| CN102768219A (en) * | 2012-07-26 | 2012-11-07 | 清华大学 | Combined nondestructive testing method and combined nondestructive testing system by utilizing rays |
| CN202676632U (en) * | 2012-03-19 | 2013-01-16 | 北京埃索特核电子机械有限公司 | Inspection device for fresh agricultural product transport vehicles |
| CN203203944U (en) * | 2013-04-27 | 2013-09-18 | 北京曼德克环境科技有限公司 | Green channel vehicle detection meter adopting X-ray backscatter and transmission combined detection |
| CN203799027U (en) * | 2014-04-15 | 2014-08-27 | 北京曼德克环境科技有限公司 | Cobalt-60 gamma ray transmission type green channel vehicle detector |
| CN204142659U (en) * | 2014-09-16 | 2015-02-04 | 北京一体通探测技术有限公司 | The shutter device of shielding ray and ray scanning imaging system |
-
2014
- 2014-09-16 CN CN201410473037.6A patent/CN104198507B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1333462A (en) * | 2001-09-03 | 2002-01-30 | 北京埃索特核电子机械有限公司 | Equipment of cobalt 60 gamma ray source-cesium iodide or cadmium tungstate detector for checking container |
| CN1401997A (en) * | 2002-09-23 | 2003-03-12 | 清华大学 | Gamma-ray radiation source device for container inspecting system |
| US7352844B1 (en) * | 2004-01-30 | 2008-04-01 | Science Applications International Corporation | Method and system for automatically scanning and imaging the contents of a moving target |
| CN1779445A (en) * | 2004-11-26 | 2006-05-31 | 清华同方威视技术股份有限公司 | Shutter structure of open and closed radioactive imaging checking system on train |
| CN202676632U (en) * | 2012-03-19 | 2013-01-16 | 北京埃索特核电子机械有限公司 | Inspection device for fresh agricultural product transport vehicles |
| CN102768219A (en) * | 2012-07-26 | 2012-11-07 | 清华大学 | Combined nondestructive testing method and combined nondestructive testing system by utilizing rays |
| CN203203944U (en) * | 2013-04-27 | 2013-09-18 | 北京曼德克环境科技有限公司 | Green channel vehicle detection meter adopting X-ray backscatter and transmission combined detection |
| CN203799027U (en) * | 2014-04-15 | 2014-08-27 | 北京曼德克环境科技有限公司 | Cobalt-60 gamma ray transmission type green channel vehicle detector |
| CN204142659U (en) * | 2014-09-16 | 2015-02-04 | 北京一体通探测技术有限公司 | The shutter device of shielding ray and ray scanning imaging system |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2543753A (en) * | 2015-10-21 | 2017-05-03 | Smiths Heimann Sas | Vehicle cabin inspection system and method |
| GB2543753B (en) * | 2015-10-21 | 2020-07-29 | Smiths Heimann Sas | Vehicle cabin inspection system and method |
| US10900911B2 (en) | 2015-10-21 | 2021-01-26 | Smiths Heimann Sas | Vehicle cabin inspection system and method |
| CN107361779A (en) * | 2016-05-13 | 2017-11-21 | 通用电气公司 | For stand and the interface of part |
| CN106370676B (en) * | 2016-08-30 | 2023-11-14 | 北京华力兴科技发展有限责任公司 | Accelerator shielding container with alignment mechanism and container/vehicle inspection equipment |
| CN106370676A (en) * | 2016-08-30 | 2017-02-01 | 北京华力兴科技发展有限责任公司 | Accelerator shielding vessel with collimating mechanism and container/vehicle inspection equipment |
| CN106908459A (en) * | 2017-04-06 | 2017-06-30 | 北京华力兴科技发展有限责任公司 | X-ray emitter installs cabin and vehicle detection apparatus |
| CN106908459B (en) * | 2017-04-06 | 2024-04-05 | 北京华力兴科技发展有限责任公司 | X-ray emitter mounting cabin and vehicle detection device |
| CN107861146A (en) * | 2017-12-26 | 2018-03-30 | 同方威视技术股份有限公司 | The twilight sunset test device of scintillator |
| CN107861146B (en) * | 2017-12-26 | 2024-05-14 | 同方威视技术股份有限公司 | Afterglow testing device of scintillator |
| CN110459338A (en) * | 2018-05-08 | 2019-11-15 | 清华大学 | Screened room, radiation source device and vehicle safety detection system |
| CN110389387A (en) * | 2019-06-06 | 2019-10-29 | 上琛安防科技（上海）有限公司 | Intelligent X-ray security detection equipment collimation, radiographic source and detection acquisition system |
| CN113049614A (en) * | 2019-12-11 | 2021-06-29 | 同方威视技术股份有限公司 | Adjusting and positioning device and method for ray source assembly and radiation scanning imaging equipment |
| CN113049614B (en) * | 2019-12-11 | 2022-11-08 | 同方威视技术股份有限公司 | Adjusting and positioning device and method for ray source assembly and radiation scanning imaging equipment |
| JP2023505662A (en) * | 2019-12-11 | 2023-02-10 | 同方威視技術股▲分▼有限公司 | Apparatus and method for adjusting and positioning radiation source components and radiation scanning imaging equipment |
| JP7446428B2 (en) | 2019-12-11 | 2024-03-08 | 同方威視技術股▲分▼有限公司 | Apparatus and method for adjusting and positioning radiation source components and radiation scanning imaging equipment |
| CN111781652B (en) * | 2020-06-30 | 2023-08-18 | 上海瑞示电子科技有限公司 | Ray shielding device, ray source and ray inspection equipment |
| CN111781652A (en) * | 2020-06-30 | 2020-10-16 | 上海瑞示电子科技有限公司 | Ray shielding device, ray source and ray inspection equipment |
| CN113884513B (en) * | 2021-08-19 | 2024-01-30 | 浙江华视智检科技有限公司 | Security check machine and cargo detection method |
| CN113884513A (en) * | 2021-08-19 | 2022-01-04 | 浙江华视智检科技有限公司 | Security check machine and cargo detection method |
| CN114019571A (en) * | 2021-09-29 | 2022-02-08 | 浙江华视智检科技有限公司 | Security inspection equipment and ray light path correction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104198507B (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104198507A (en) | Shutter device for shielding rays and ray scanning imaging system | |
| US11852775B2 (en) | High-speed security inspection system | |
| AU2006200561B2 (en) | Method and Equipment for Discriminating Materials by Employing Fast Neutron and Continuous Spectral X-ray | |
| CN1268940C (en) | Spectrally shaped X-ray inspection system | |
| WO2016074365A1 (en) | Continuous pass-type radiation scanning system and method | |
| CN102834738A (en) | Cargo and vehicle inspection system | |
| CN204142659U (en) | The shutter device of shielding ray and ray scanning imaging system | |
| CN104777520B (en) | A kind of mobile target automatic inspection system based on laser scanner | |
| CN104502377A (en) | Vehicle radiation imaging detection system | |
| CN204405569U (en) | Vehicle radiating imaging detection system | |
| CN207263941U (en) | Radiation appliance and radiation checking system | |
| CN104502944A (en) | Method for lowering detecting dose of radiation imaging system | |
| US10436725B2 (en) | Virtual barricade for radiation inspection of predefined paths | |
| DE102013102745B4 (en) | Optical sensor | |
| WO2018036265A1 (en) | Imaging device for use in vehicle security check and method therefor | |
| CN206741002U (en) | The detection means of bus luggage compartment | |
| WO2023125286A1 (en) | Multi-ray source inspection device and inspection method | |
| CN103995299A (en) | X-ray beam control device in green channel detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |