CN110057848A - A kind of system and method being aligned for detector array with radiographic source - Google Patents
A kind of system and method being aligned for detector array with radiographic source Download PDFInfo
- Publication number
- CN110057848A CN110057848A CN201910307452.7A CN201910307452A CN110057848A CN 110057848 A CN110057848 A CN 110057848A CN 201910307452 A CN201910307452 A CN 201910307452A CN 110057848 A CN110057848 A CN 110057848A
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- radiographic source
- transmitted intensity
- detector array
- aligned
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000002601 radiography Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
Abstract
The invention discloses a kind of system and methods being aligned for detector array with radiographic source, including radiographic source, regulating part, column, detector array unit, transmitted intensity detection unit and signal acquisition unit；The regulating part is connected with radiographic source；The detector array unit includes several groups detector array, and every group of detector array includes multiple detectors；The transmitted intensity detection unit includes several transmitted intensity detectors, and each transmitted intensity detector is respectively arranged on by corresponding detector, detects the transmitted intensity obtained on each detector；The input terminal of the signal acquisition unit is connected with the output end of each transmitted intensity detector respectively, receives the transmitted intensity signal of each transmitted intensity detector output, and is shown.The present invention can be realized the optimally aligned position for accurately determining single group detector array and radiographic source, guarantee that radiographic source is aligned with each group detector array and will not deviate.
Description
Technical field
The invention belongs to logistics detection technique fields, and in particular to a kind of to be for what detector array was aligned with radiographic source
System and method.
Background technique
In recent years, vehicle is detected by vehicle detecting system on highway, to judge the cargo dress of vehicle
Carry situation, concrete principle is: use transmission-type radiography, charge road inlet side be fixedly mounted radiation source, one
Ray detector is fixedly mounted in side, and when green channel vehicle enters the lane in which the drivers should pay fees, system can avoid driver's cabin, opens ray pair
Container or closing car body carry out image checking, and image is immediately transmitted on toll collector's computer screen, toll collector according to
The interior description of the goods that screen is shown judges whether to meet the condition of green channel vehicle deduction and exemption pass cost, let pass to be free or
Person, which charges, provides direct evidence, while storing in image storage to management center server, to check that toll collector works
Situation.
In current image-forming detecting system, ray machine radiographic source launches fan-shaped ray, and solid detector array group receives
The ray of light source transmitting, and received ray signal is converted to the electric signal for being used to generate image.If light source and solid are visited
It surveys the alignment of device array group to deviate, then the signal and actual signal that detector receives will also generate deviation；Therefore, light source is penetrated
Harness receives whether signal is aligned with solid detector array group, if reaches optimum receiving signal intensity, is to significantly affect inspection
The critically important factor of examining system image quality.
Summary of the invention
In view of the above-mentioned problems, the present invention proposes a kind of system and method being aligned for detector array with radiographic source, energy
It is enough to realize the position for accurately determining every group of detector array elements, it will not to guarantee that light source is aligned with solid detector array group
It deviates.
In order to achieve the above technical purposes, reach above-mentioned technical effect, the invention is realized by the following technical scheme:
In a first aspect, the present invention provides a kind of systems being aligned for detector array with radiographic source, comprising:
Radiographic source；
Regulating part, the regulating part are connected with radiographic source, for adjusting the position of the radiographic source；
Column；
Detector array unit, the detector array unit include several groups detector array, and each group detector array is sequentially
It is arranged on the column on the outer wall of radiographic source, every group of detector array includes multiple detectors；
Transmitted intensity detection unit, the transmitted intensity detection unit include several transmitted intensity detectors, each transmitted intensity
Detector is respectively arranged on by corresponding detector, detects the transmitted intensity obtained on each detector；
Signal acquisition unit, the input terminal of the signal acquisition unit are connected with the output end of each transmitted intensity detector respectively,
The transmitted intensity signal of each transmitted intensity detector output is received, and is shown.
Preferably, a kind of system being aligned for detector array with radiographic source, further includes collimator, the collimation
Device is set between the radiographic source and column, for collimating to the light that radiographic source issues.
Preferably, the detector in each group detector array is sequentially arranged along horizontal direction, forms linear array；Respectively
Group detector array is sequentially arranged on the column from top to bottom on the outer wall of radiographic source.
Preferably, in the transmitted intensity detection unit, in horizontal direction between two neighboring transmitted intensity detector
Gap is less than or equal to 2mm, and the gap on vertical direction between two neighboring transmitted intensity detector is less than or equal to
0.5m。
Preferably, the radiographic source is x-ray source.
Preferably, the regulating part include the first plate for being sequentially arranged and being parallel to each other from top to bottom, the second plate and
Third plate；
For first plate for being connected with the radiographic source, bottom is equipped with sliding block, and connects between the sliding block for rotation
It connects；
The top surface of second plate is equipped with the sliding slot to match with the sliding block；
It is equipped with connecting plate between the third plate and the second plate, adjusting bolt is additionally provided on the third plate, for adjusting
Save the pitch angle of the third plate.
Preferably, the detector is photomultiplier transit tube assembly.
Second aspect, the present invention provides a kind of methods being aligned for detector array with radiographic source, including following step
It is rapid:
(1) radiographic source is opened；
(2) group is detected using transmitted intensity detector corresponding with certain group detector array in transmitted intensity detection unit to visit
The transmitted intensity that each detector receives in device array is surveyed, and is sent to signal acquisition unit；
(3) signal acquisition unit shows the information for the transmitted intensity that each detector received receives；
(4) transmitted intensity received according to each detector adjusts the position of radiographic source using the regulating part being connected with radiographic source
And angle, until the transmitted intensity that the detector for being located at most middle position in this group of detector array receives is maximum.
Preferably, the detector in each group detector array is sequentially arranged along horizontal direction, forms linear array；Institute
It states in transmitted intensity detection unit, the gap in horizontal direction between two neighboring transmitted intensity detector is less than or equal to
2mm, the gap on vertical direction between two neighboring transmitted intensity detector are less than or equal to 0.5m.
Preferably, between the step (1) and step (2) further include:
Collimation processing is carried out to the ray signal that radiographic source issues using collimator.
Compared with prior art, beneficial effects of the present invention:
The present invention proposes a kind of system and method being aligned for detector array with radiographic source, using by each detector
Transmitted intensity detector detects the transmitted intensity that each detector receives, to be located at most intermediate spy in every group of detector array
Position and angle that the transmitted intensity maximum that device receives removes adjustment radiographic source are surveyed, final realize determines single group detector array
With the optimally aligned position of radiographic source, guarantee that radiographic source is aligned with each group detector array and will not deviate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the system being aligned for detector array with radiographic source；
Fig. 2 is the positional diagram of detector array unit and transmitted intensity detection unit；
Fig. 3 is the structural schematic diagram of regulating part；
Fig. 4 is certain signal Gaussian curve figure for receiving of group detector array, wherein radiographic source misalignment centre position deviation
One of situation；
Fig. 5 is certain signal Gaussian curve figure for receiving of group detector array, wherein radiographic source misalignment centre position deviation
One of situation；
Fig. 6 is the signal Gaussian curve figure that certain group detector array receives, wherein the feelings of radiographic source centring position sensor
Shape.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
It limits the scope of protection of the present invention.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1-3, providing a kind of system being aligned for detector array with radiographic source in the embodiment of the present invention, wrap
It includes: radiographic source 1, regulating part 2, column 3, detector array unit 4, transmitted intensity detection unit 5 and signal acquisition unit 6；
In a kind of specific embodiment of the present embodiment, the radiographic source 1 can be x-ray source 1, in other of the present embodiment
In embodiment, the radiographic source 1 can also be the radiographic source 1 that can emit other rays, since its structure is not this
Where the inventive point of invention, therefore, it is not specifically limited and repeats in the present invention；When radiographic source 1 includes several ray emissions
When device, then only one ray emitter of same time is in running order, remaining ray emitter be in it is standby or
Off-mode；
The regulating part 2 is connected with radiographic source 1, for realizing the driving horizontal rotation of radiographic source 1, left and right fine motion, pitching three tune
Save function；In a kind of specific embodiment of the present embodiment, as shown in figure 3, the regulating part 2 includes sequentially arranging from top to bottom
The first plate 201, the second plate 202 and the third plate 203 for arranging and being parallel to each other；First plate 201 be used for it is described
Radiographic source 1 is connected, and bottom is equipped with sliding block 205, and is rotation connection between the sliding block 205, for realizing radiographic source 1
It rotates horizontally；The top surface of second plate 202 is equipped with the sliding slot to match with the sliding block, for cooperating 205 sliding blocks real
Existing radiographic source 1 moves left and right；Connecting plate 206 is equipped between the third plate 203 and the second plate 202, the third is flat
It is additionally provided on plate 203 and adjusts bolt 204, for adjusting the pitch angle of the third plate 203；It is highly preferred that described first
Be additionally provided with two triangular reinforcing plates being oppositely arranged 207 on plate 201, and with the stiffening plate 207 and the first plate 201
Connected fourth panel 208；
The detector array unit 4 includes several groups detector array, and each group detector array is sequentially arranged in the column 3
On the outer wall of upper close radiographic source 1, every group of detector array includes multiple detectors；In a kind of specific implementation of the present embodiment
In mode, the detector is photomultiplier transit tube assembly, and the photomultiplier transit tube assembly can be directly from purchasing on the market
It arrives；
The transmitted intensity detection unit 5 includes several transmitted intensity detectors, and each transmitted intensity detector is respectively arranged on pair
By the detector answered, the transmitted intensity obtained on each detector is detected；In the preferred embodiment of the present embodiment, each group detection
Detector in device array is sequentially arranged along horizontal direction, forms linear array；Each group detector array is suitable from top to bottom
It is secondary to be arranged on the column 3 on the outer wall of radiographic source 1；It is adjacent in horizontal direction in the transmitted intensity detection unit 5
Gap between two transmitted intensity detectors is less than or equal to 2mm；In the transmitted intensity detection unit 5, vertical direction
Gap between upper two neighboring transmitted intensity detector is less than or equal to 0.5m；The transmitted intensity detector can be straight
It connects from buying on the market, what the connection relationship and data transmission relations between signal acquisition unit 6 used is also existing skill
Art, therefore, the present invention in do not do it is excessive repeating and limiting, as long as can be realized the collected signal of transmitted intensity detector
Intensity value is sent to signal acquisition unit 6；
The input terminal of the signal acquisition unit 6 is connected with the output end of each transmitted intensity detector respectively, and it is strong to receive each ray
The transmitted intensity signal of detector output is spent, and is shown；In a kind of specific embodiment of the present embodiment, the signal
Acquisition unit 6 can be host computer.
In summary: the working principle of the system being aligned for detector array with radiographic source in the present embodiment is specific
Are as follows:
(1) radiographic source 1 is opened；
(2) group is detected using transmitted intensity detector corresponding with certain group detector array in transmitted intensity detection unit 5
The transmitted intensity that each detector receives in detector array, and it is sent to signal acquisition unit 6；
(3) signal acquisition unit 6 shows the information for the transmitted intensity that each detector received receives, referring specifically to
Figure 4 and 5；
(4) transmitted intensity received according to each detector adjusts the position of radiographic source 1 using the regulating part 2 being connected with radiographic source 1
It sets and angle has until the transmitted intensity that the detector for being located at most middle position in this group of detector array receives is maximum
Body is referring to Fig. 6.
Embodiment 2
Based on inventive concept same as Example 1, the present embodiment the difference from embodiment 1 is that:
In order to improve alignment accuracy, one of the present embodiment is used for the system that detector array is aligned with radiographic source, also wraps
Collimator 7 is included, the collimator 7 is set between the radiographic source 1 and column 3, and the light for issuing to radiographic source 1 carries out quasi-
Directly.
Embodiment 3
Based on inventive concept same as Example 1, one kind is provided in the present embodiment for detector array and radiographic source pair
Quasi- method, comprising the following steps:
(1) radiographic source 1 is opened；In a kind of specific embodiment of the present embodiment, the radiographic source 1 can be x-ray source 1,
In the other embodiments of the present embodiment, the radiographic source 1 can also be the radiographic source 1 that can emit other rays, due to
Its structure is not where inventive point of the invention, therefore, is not specifically limited and is repeated in the present invention；When radiographic source 1 wraps
When including several ray emitters, then only one ray emitter of same time is in running order, remaining ray emission
Device is in standby or off-mode；
(2) group is detected using transmitted intensity detector corresponding with certain group detector array in transmitted intensity detection unit to visit
The transmitted intensity that each detector receives in device array is surveyed, and is sent to signal acquisition unit；It is specific in one kind of the present embodiment
In embodiment, the detector array unit 4 includes several groups detector array, and each group detector array is sequentially arranged in institute
It states on column 3 on the outer wall of radiographic source 1, every group of detector array includes multiple detectors；In one kind of the present embodiment
In specific embodiment, the detector is photomultiplier transit tube assembly, and the photomultiplier transit tube assembly can be directly from market
Upper buying obtains；The transmitted intensity detection unit 5 includes several transmitted intensity detectors, each transmitted intensity detector difference
By corresponding detector, the transmitted intensity obtained on each detector is detected；In the preferred embodiment of the present embodiment, respectively
Detector in group detector array is sequentially arranged along horizontal direction, forms linear array；Each group detector array is from upper
It is sequentially arranged under on the column 3 on the outer wall of radiographic source 1；In the transmitted intensity detection unit 5, horizontal direction
Gap between upper two neighboring transmitted intensity detector is less than or equal to 2mm；In the transmitted intensity detection unit 5, erect
The gap between two neighboring transmitted intensity detector is less than or equal to 0.5m to histogram upwards；The transmitted intensity detector
It can be directly from buying on the market, what connection relationship and data transmission relations between signal acquisition unit 6 used is also
The prior art, therefore, the present invention in do not do it is excessive repeating and limiting, transmitted intensity detector is collected as long as can be realized
Signal strength indication be sent to signal acquisition unit 6；
(3) signal acquisition unit shows the information for the transmitted intensity that each detector received receives, referring specifically to
Figure 4 and 5；In a kind of specific embodiment of the present embodiment, the signal acquisition unit 6 can be host computer；
(4) transmitted intensity received according to each detector adjusts the position of radiographic source using the regulating part being connected with radiographic source
And angle, until the transmitted intensity that the detector for being located at most middle position in this group of detector array receives is maximum, specifically
Referring to Fig. 6；In a kind of specific embodiment of the present embodiment, the regulating part 2 is connected with radiographic source 1, for realizing driving
Three horizontal rotation of radiographic source 1, left and right fine motion, pitching regulatory functions；In a kind of specific embodiment of the present embodiment, such as scheme
Shown in 3, the regulating part 2 includes the first plate 201 for being sequentially arranged and being parallel to each other from top to bottom, the second plate 202 and the
Three plates 203；First plate 201 for being connected with the radiographic source 1, bottom equipped with sliding block 205, and with the sliding block
It is rotation connection between 205, for realizing the horizontal rotation of radiographic source 1；The top surface of second plate 202 be equipped with it is described
The sliding slot that sliding block matches, for cooperating 205 sliding blocks to realize moving left and right for radiographic source 1；The third plate 203 and second flat
It is equipped with connecting plate 206 between plate 202, is additionally provided on the third plate 203 and adjusts bolt 204, it is flat for adjusting the third
The pitch angle of plate 203；It is highly preferred that being additionally provided with two triangular reinforcing plates being oppositely arranged on first plate 201
207, and the fourth panel 208 being connected with the stiffening plate 207 and the first plate 201.
The method being aligned for detector array with radiographic source in the present embodiment can be applied in embodiment 1 or 2
The system being aligned for detector array with radiographic source.
Embodiment 4
Based on inventive concept same as Example 3, the present embodiment and the difference of embodiment 3 are:
Between the step (1) and step (2) further include:
Collimation processing is carried out to the ray signal that radiographic source issues using collimator, can be improved detector array elements and ray
Alignment accuracy between beam.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of system being aligned for detector array with radiographic source characterized by comprising
Radiographic source；
Regulating part, the regulating part are connected with radiographic source, for adjusting the position of the radiographic source；
Column；
Detector array unit, the detector array unit include several groups detector array, and each group detector array is all provided with
In on the outer wall of radiographic source, every group of detector array includes multiple detectors on the column；
Transmitted intensity detection unit, the transmitted intensity detection unit include several transmitted intensity detectors, each transmitted intensity
Detector is respectively arranged on by corresponding detector, detects the transmitted intensity obtained on each detector；
Signal acquisition unit, the input terminal of the signal acquisition unit are connected with the output end of each transmitted intensity detector respectively,
The transmitted intensity signal of each transmitted intensity detector output is received, and is shown.
2. a kind of system being aligned for detector array with radiographic source according to claim 1, it is characterised in that: also wrap
Collimator is included, the collimator is set between the radiographic source and column, for collimating to the light that radiographic source issues.
3. a kind of system being aligned for detector array with radiographic source according to claim 1, it is characterised in that: each group
Detector in detector array is sequentially arranged along horizontal direction, forms linear array；Each group detector array from up to
Under be sequentially arranged on the column close to radiographic source outer wall on.
4. a kind of system being aligned for detector array with radiographic source according to claim 3, it is characterised in that: described
In transmitted intensity detection unit, the gap in horizontal direction between two neighboring transmitted intensity detector is less than or equal to 2mm,
Gap on vertical direction between two neighboring transmitted intensity detector is less than or equal to 0.5m.
5. a kind of system being aligned for detector array with radiographic source according to claim 1, it is characterised in that: described
Radiographic source is x-ray source.
6. a kind of system being aligned for detector array with radiographic source according to claim 1, it is characterised in that: described
Regulating part includes the first plate, the second plate and third plate for being sequentially arranged and being parallel to each other from top to bottom；
For first plate for being connected with the radiographic source, bottom is equipped with sliding block, and connects between the sliding block for rotation
It connects；
The top surface of second plate is equipped with the sliding slot to match with the sliding block；
It is equipped with connecting plate between the third plate and the second plate, adjusting bolt is additionally provided on the third plate, for adjusting
Save the pitch angle of the third plate.
7. a kind of system being aligned for detector array with radiographic source according to claim 1, it is characterised in that: described
Detector is photomultiplier transit tube assembly.
8. a kind of method being aligned for detector array with radiographic source, which comprises the following steps:
(1) radiographic source is opened；
(2) group is detected using transmitted intensity detector corresponding with certain group detector array in transmitted intensity detection unit to visit
The transmitted intensity that each detector receives in device array is surveyed, and is sent to signal acquisition unit；
(3) signal acquisition unit shows the information for the transmitted intensity that each detector received receives；
(4) transmitted intensity received according to each detector adjusts the position of radiographic source using the regulating part being connected with radiographic source
And angle, until the transmitted intensity that the detector for being located at most middle position in this group of detector array receives is maximum.
9. a kind of method being aligned for detector array with radiographic source according to claim 8, it is characterised in that: each group
Detector in detector array is sequentially arranged along horizontal direction, forms linear array；The transmitted intensity detection unit
In, gap in horizontal direction between two neighboring transmitted intensity detector is less than or equal to 2mm, adjacent two on vertical direction
Gap between a transmitted intensity detector is less than or equal to 0.5m.
10. a kind of method being aligned for detector array with radiographic source according to claim 8, it is characterised in that: institute
It states between step (1) and step (2) further include:
Collimation processing is carried out to the ray signal that radiographic source issues using collimator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307452.7A CN110057848A (en) | 2019-04-17 | 2019-04-17 | A kind of system and method being aligned for detector array with radiographic source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910307452.7A CN110057848A (en) | 2019-04-17 | 2019-04-17 | A kind of system and method being aligned for detector array with radiographic source |
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| CN110057848A true CN110057848A (en) | 2019-07-26 |
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| CN201910307452.7A Pending CN110057848A (en) | 2019-04-17 | 2019-04-17 | A kind of system and method being aligned for detector array with radiographic source |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607386A (en) * | 2003-10-16 | 2005-04-20 | 清华大学 | Radiant ray angle adjustable inspection system for container goods/vehicle |
| CN104634796A (en) * | 2014-12-11 | 2015-05-20 | 清华大学 | Alignment system and alignment method for container or vehicle inspection system |
| CN210166328U (en) * | 2019-04-17 | 2020-03-20 | 苏州曼德克光电有限公司 | System for aligning detector array and ray source |
-
2019
- 2019-04-17 CN CN201910307452.7A patent/CN110057848A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1607386A (en) * | 2003-10-16 | 2005-04-20 | 清华大学 | Radiant ray angle adjustable inspection system for container goods/vehicle |
| CN104634796A (en) * | 2014-12-11 | 2015-05-20 | 清华大学 | Alignment system and alignment method for container or vehicle inspection system |
| CN210166328U (en) * | 2019-04-17 | 2020-03-20 | 苏州曼德克光电有限公司 | System for aligning detector array and ray source |
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