CN210166328U - System for aligning detector array and ray source - Google Patents
System for aligning detector array and ray source Download PDFInfo
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- CN210166328U CN210166328U CN201920519302.8U CN201920519302U CN210166328U CN 210166328 U CN210166328 U CN 210166328U CN 201920519302 U CN201920519302 U CN 201920519302U CN 210166328 U CN210166328 U CN 210166328U
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Abstract
The utility model discloses a system for aligning a detector array and a ray source, which comprises a ray source, an adjusting piece, a stand column, an array detector unit, a ray intensity detection unit and a signal acquisition unit; the adjusting piece is connected with the ray source; the array detector unit comprises a plurality of groups of detector arrays, and each group of detector arrays comprises a plurality of detectors; the ray intensity detection unit comprises a plurality of ray intensity detectors, each ray intensity detector is arranged beside the corresponding detector, and the ray intensity obtained on each detector is detected; the input end of the signal acquisition unit is respectively connected with the output end of each ray intensity detector, and is used for receiving and displaying the ray intensity signals output by each ray intensity detector. The utility model discloses can realize confirming accurately singly organize the best alignment position of detector array and ray source, guarantee that ray source and each group's detector array can not take place the deviation to the alignment.
Description
Technical Field
The utility model belongs to the technical field of the commodity circulation detects, concretely relates to a system that is used for detector array and radiation source to aim at.
Background
In recent years, vehicles are detected on a highway through a vehicle detection system to judge the cargo loading condition of the vehicles, and the specific principle is as follows: adopt transmission-type radiation imaging technique, at toll road entrance one side fixed mounting radiation source, one side fixed mounting ray detector, when green passageway vehicle gets into the toll lane, the driver's cabin can be dodged to the system, open the ray and carry out the formation of image detection to container or closed automobile body, the image is sent to on the personnel's of collecting computer screen immediately, the charge personnel is according to the goods condition in the car of screen display, judge whether accord with the green passageway vehicle condition of exempting from the toll, provide direct evidence for free clearance or charge, the image storage is stored to the administrative center server simultaneously, so that inspect the charge personnel behavior.
In the current imaging detection system, a ray source of an optical machine emits fan-shaped rays, and a solid detector array group receives the rays emitted by the light source and converts received ray signals into electric signals for generating images. If the alignment of the light source and the solid detector array group deviates, the signal received by the detector and the actual signal also deviate; therefore, whether the light source ray beam is aligned with the received signal of the solid detector array set or not and whether the optimal received signal intensity is achieved or not is an important factor which significantly influences the imaging quality of the detection system.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a system for detector array and ray source are aimed at can realize confirming the position of every detector array unit of group accurately to guarantee that light source and solid detector array group aim at and can not take place the deviation.
In order to realize the technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
in a first aspect, the present invention provides a system for aligning a detector array with a radiation source, comprising:
a radiation source;
the adjusting piece is connected with the ray source and used for adjusting the position of the ray source;
a column;
the array detector unit comprises a plurality of groups of detector arrays, each group of detector arrays are sequentially arranged on the outer wall of the stand column close to the ray source, and each group of detector arrays comprises a plurality of detectors;
the radiation intensity detection unit comprises a plurality of radiation intensity detectors, and each radiation intensity detector is arranged beside the corresponding detector and is used for detecting the radiation intensity obtained on each detector;
and the input end of the signal acquisition unit is respectively connected with the output end of each ray intensity detector, and is used for receiving and displaying the ray intensity signals output by each ray intensity detector.
Preferably, the system for aligning the detector array with the ray source further comprises a collimator, and the collimator is arranged between the ray source and the column and is used for collimating light emitted by the ray source.
Preferably, the detectors in each group of detector arrays are sequentially arranged along the horizontal direction to form a linear array; and all groups of detector arrays are sequentially arranged on the outer wall of the upright column close to the ray source from top to bottom.
Preferably, in the radiation intensity detecting unit, a gap between two adjacent radiation intensity detectors in the horizontal direction is less than or equal to 2mm, and a gap between two adjacent radiation intensity detectors in the vertical direction is less than or equal to 0.5 m.
Preferably, the source of radiation is an X-ray source.
Preferably, the adjusting member comprises a first flat plate, a second flat plate and a third flat plate which are sequentially arranged from top to bottom and are parallel to each other;
the first flat plate is used for being connected with the ray source, a sliding block is arranged at the bottom of the first flat plate, and the first flat plate is rotatably connected with the sliding block;
the top surface of the second flat plate is provided with a sliding groove matched with the sliding block;
and a connecting plate is arranged between the third flat plate and the second flat plate, and an adjusting bolt is further arranged on the third flat plate and used for adjusting the pitching angle of the third flat plate.
Preferably, the detector is a photomultiplier tube assembly.
In a second aspect, the present invention provides a method for aligning a detector array with a radiation source, comprising the steps of:
(1) starting a ray source;
(2) detecting the ray intensity received by each detector in a certain group of detector arrays by using a ray intensity detector corresponding to the group of detector arrays in the ray intensity detection unit, and sending the ray intensity to the signal acquisition unit;
(3) the signal acquisition unit displays the received ray intensity information received by each detector;
(4) and adjusting the position and the angle of the ray source by using an adjusting piece connected with the ray source according to the ray intensity received by each detector until the ray intensity received by the detector positioned at the most middle position in the group of detector arrays is maximum.
Preferably, the detectors in each group of detector arrays are sequentially arranged along the horizontal direction to form a linear array; in the ray intensity detection unit, the gap between two adjacent ray intensity detectors in the horizontal direction is less than or equal to 2mm, and the gap between two adjacent ray intensity detectors in the vertical direction is less than or equal to 0.5 m.
Preferably, the method further comprises the following steps (1) and (2):
and utilizing a collimator to collimate the ray signal emitted by the ray source.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a system for be used for detector array and radiation source to aim at utilizes and locates the other strength of ray detector of each detector and detects out each detector received strength of ray to lie in the position and the angle that the most central detector received strength of ray got rid of the adjustment radiation source in every group detector array, finally realize determining singly organize the best alignment position of detector array and radiation source, guarantee that radiation source and each group of detector array can not take place the deviation to aim at.
Drawings
FIG. 1 is a schematic block diagram of a system for aligning a detector array with a radiation source;
FIG. 2 is a schematic diagram showing the positional relationship between the array detector unit and the radiation intensity detecting unit;
FIG. 3 is a schematic view of the structure of the adjusting member;
FIG. 4 is a Gaussian plot of signals received by a set of detector arrays in which the source is not aligned with one of the centrally located detectors;
FIG. 5 is a Gaussian plot of signals received by a set of detector arrays in which the source is not aligned with one of the centrally located detectors;
FIG. 6 is a Gaussian plot of signals received by a set of detector arrays in which the source is aligned with a centrally located detector.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the scope of the invention.
The following description is made in detail for the application of the principles of the present invention with reference to the accompanying drawings.
Example 1
As shown in fig. 1-3, embodiments of the present invention provide a system for aligning a detector array with a radiation source, comprising: the device comprises a ray source 1, an adjusting piece 2, a stand column 3, an array detector unit 4, a ray intensity detection unit 5 and a signal acquisition unit 6;
in a specific implementation manner of this embodiment, the radiation source 1 may be an X-ray source 1, and in other implementation manners of this embodiment, the radiation source 1 may also be a radiation source 1 capable of emitting other rays, and since the structure itself is not a point of the utility model, therefore, the utility model is not specifically limited and described; when the ray source 1 comprises a plurality of ray emitters, only one ray emitter is in a working state at the same time, and the rest ray emitters are in a standby state or a shutdown state;
the adjusting part 2 is connected with the ray source 1 and is used for realizing three adjusting functions of driving the ray source 1 to rotate horizontally, slightly move left and right and pitch; in a specific embodiment of this embodiment, as shown in fig. 3, the adjusting member 2 includes a first flat plate 201, a second flat plate 202 and a third flat plate 203 which are arranged in sequence from top to bottom and are parallel to each other; the first flat plate 201 is used for connecting with the radiation source 1, the bottom of the first flat plate is provided with a sliding block 205, and the first flat plate is rotationally connected with the sliding block 205 and used for realizing the horizontal rotation of the radiation source 1; the top surface of the second plate 202 is provided with a sliding groove matched with the sliding block, and the sliding groove is used for being matched with the sliding block 205 to realize the left-right movement of the radiation source 1; a connecting plate 206 is arranged between the third plate 203 and the second plate 202, and an adjusting bolt 204 is further arranged on the third plate 203 and used for adjusting the pitch angle of the third plate 203; more preferably, two triangular reinforcing plates 207 arranged oppositely and a fourth flat plate 208 connected with the reinforcing plates 207 and the first flat plate 201 are further arranged on the first flat plate 201;
the array detector unit 4 comprises a plurality of groups of detector arrays, each group of detector arrays are sequentially arranged on the outer wall of the upright post 3 close to the ray source 1, and each group of detector arrays comprises a plurality of detectors; in a specific implementation manner of this embodiment, the detector is a photomultiplier tube assembly, and the photomultiplier tube assembly can be purchased directly from the market;
the ray intensity detection unit 5 comprises a plurality of ray intensity detectors, each ray intensity detector is arranged beside a corresponding detector, and the ray intensity obtained on each detector is detected; in a preferred embodiment of the present embodiment, the detectors in each group of detector arrays are sequentially arranged along the horizontal direction to form a linear array; each group of detector arrays are sequentially arranged on the outer wall of the upright post 3 close to the ray source 1 from top to bottom; in the radiation intensity detection unit 5, the gap between two adjacent radiation intensity detectors in the horizontal direction is less than or equal to 2 mm; in the radiation intensity detection unit 5, a gap between two adjacent radiation intensity detectors in the vertical direction is less than or equal to 0.5 m; the ray intensity detector can be directly purchased from the market, and the connection relation and the data transmission relation between the ray intensity detector and the signal acquisition unit 6 are also the prior art, so that the utility model discloses in not doing too much repeated description and limitation, as long as can realize sending the signal intensity value that the ray intensity detector gathers to the signal acquisition unit 6;
the input end of the signal acquisition unit 6 is respectively connected with the output end of each ray intensity detector, and is used for receiving and displaying the ray intensity signals output by each ray intensity detector; in a specific implementation manner of this embodiment, the signal acquisition unit 6 may be an upper computer.
In summary, the following steps: the working principle of the system for aligning the detector array and the ray source in the embodiment is specifically as follows:
(1) starting the ray source 1;
(2) detecting the ray intensity received by each detector in a certain group of detector arrays by using a ray intensity detector corresponding to the group of detector arrays in the ray intensity detection unit 5, and sending the ray intensity to the signal acquisition unit 6;
(3) the signal acquisition unit 6 displays the received information of the ray intensity received by each detector, specifically referring to fig. 4 and 5;
(4) according to the intensity of the radiation received by each detector, the position and the angle of the radiation source 1 are adjusted by using the adjusting member 2 connected with the radiation source 1 until the intensity of the radiation received by the detector in the most middle position in the group of detector arrays is maximum, as shown in fig. 6.
Example 2
Based on the same concept of the utility model as that of the embodiment 1, the present embodiment is different from the embodiment 1 in that:
in order to improve the alignment accuracy, the system for aligning the detector array with the radiation source in the embodiment further includes a collimator 7, where the collimator 7 is disposed between the radiation source 1 and the column 3, and is used for collimating the light emitted from the radiation source 1.
Example 3
Based on the same concept of the present invention as that of embodiment 1, the present embodiment provides a method for aligning a detector array with a radiation source, including the following steps:
(1) starting the ray source 1; in a specific implementation manner of this embodiment, the radiation source 1 may be an X-ray source 1, and in other implementation manners of this embodiment, the radiation source 1 may also be a radiation source 1 capable of emitting other rays, and since the structure itself is not a point of the utility model, therefore, the utility model is not specifically limited and described; when the ray source 1 comprises a plurality of ray emitters, only one ray emitter is in a working state at the same time, and the rest ray emitters are in a standby state or a shutdown state;
(2) detecting the ray intensity received by each detector in a certain group of detector arrays by using a ray intensity detector corresponding to the group of detector arrays in the ray intensity detection unit, and sending the ray intensity to the signal acquisition unit; in a specific implementation manner of this embodiment, the array detector unit 4 includes a plurality of groups of detector arrays, each group of detector arrays is sequentially arranged on the outer wall of the column 3 close to the radiation source 1, and each group of detector arrays includes a plurality of detectors; in a specific implementation manner of this embodiment, the detector is a photomultiplier tube assembly, and the photomultiplier tube assembly can be purchased directly from the market; the ray intensity detection unit 5 comprises a plurality of ray intensity detectors, each ray intensity detector is arranged beside a corresponding detector, and the ray intensity obtained on each detector is detected; in a preferred embodiment of the present embodiment, the detectors in each group of detector arrays are sequentially arranged along the horizontal direction to form a linear array; each group of detector arrays are sequentially arranged on the outer wall of the upright post 3 close to the ray source 1 from top to bottom; in the radiation intensity detection unit 5, the gap between two adjacent radiation intensity detectors in the horizontal direction is less than or equal to 2 mm; in the radiation intensity detection unit 5, a gap between two adjacent radiation intensity detectors in the vertical direction is less than or equal to 0.5 m; the ray intensity detector can be directly purchased from the market, and the connection relation and the data transmission relation between the ray intensity detector and the signal acquisition unit 6 are also the prior art, so that the utility model discloses in not doing too much repeated description and limitation, as long as can realize sending the signal intensity value that the ray intensity detector gathers to the signal acquisition unit 6;
(3) the signal acquisition unit displays the received ray intensity information received by each detector, specifically referring to fig. 4 and 5; in a specific implementation manner of this embodiment, the signal acquisition unit 6 may be an upper computer;
(4) adjusting the position and angle of the ray source by using an adjusting member connected with the ray source according to the intensity of the rays received by each detector until the intensity of the rays received by the detector positioned at the most middle position in the group of detector arrays is maximum, specifically referring to fig. 6; in a specific implementation manner of this embodiment, the adjusting part 2 is connected to the radiation source 1, and is configured to implement three adjusting functions of driving the radiation source 1 to rotate horizontally, jogging left and right, and pitching; in a specific embodiment of this embodiment, as shown in fig. 3, the adjusting member 2 includes a first flat plate 201, a second flat plate 202 and a third flat plate 203 which are arranged in sequence from top to bottom and are parallel to each other; the first flat plate 201 is used for connecting with the radiation source 1, the bottom of the first flat plate is provided with a sliding block 205, and the first flat plate is rotationally connected with the sliding block 205 and used for realizing the horizontal rotation of the radiation source 1; the top surface of the second plate 202 is provided with a sliding groove matched with the sliding block, and the sliding groove is used for being matched with the sliding block 205 to realize the left-right movement of the radiation source 1; a connecting plate 206 is arranged between the third plate 203 and the second plate 202, and an adjusting bolt 204 is further arranged on the third plate 203 and used for adjusting the pitch angle of the third plate 203; more preferably, two triangular reinforcing plates 207 arranged oppositely and a fourth flat plate 208 connected with the reinforcing plates 207 and the first flat plate 201 are further arranged on the first flat plate 201.
The method for aligning the detector array with the ray source in the present embodiment can be applied to the system for aligning the detector array with the ray source in embodiment 1 or 2.
Example 4
Based on the same concept of the utility model as that of the embodiment 3, the present embodiment is different from the embodiment 3 in that:
the method also comprises the following steps between the step (1) and the step (2):
the collimator is used for collimating ray signals emitted by the ray source, so that the alignment accuracy between the detector array unit and the ray bundle can be improved.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A system for aligning a detector array with a source of radiation, comprising:
a radiation source;
the adjusting piece is connected with the ray source and used for adjusting the position of the ray source;
a column;
the array detector unit comprises a plurality of groups of detector arrays, each group of detector arrays is arranged on the outer wall of the stand column close to the ray source, and each group of detector arrays comprises a plurality of detectors;
the radiation intensity detection unit comprises a plurality of radiation intensity detectors, and each radiation intensity detector is arranged beside the corresponding detector and is used for detecting the radiation intensity obtained on each detector;
and the input end of the signal acquisition unit is respectively connected with the output end of each ray intensity detector, and is used for receiving and displaying the ray intensity signals output by each ray intensity detector.
2. A system for aligning a detector array with a source of radiation according to claim 1, wherein: the collimator is arranged between the ray source and the upright column and is used for collimating the light emitted by the ray source.
3. A system for aligning a detector array with a source of radiation according to claim 1, wherein: the detectors in each group of detector arrays are sequentially arranged along the horizontal direction to form a linear array; and all groups of detector arrays are sequentially arranged on the outer wall of the upright column close to the ray source from top to bottom.
4. A system for aligning a detector array with a source of radiation according to claim 3, wherein: in the ray intensity detection unit, the gap between two adjacent ray intensity detectors in the horizontal direction is less than or equal to 2mm, and the gap between two adjacent ray intensity detectors in the vertical direction is less than or equal to 0.5 m.
5. A system for aligning a detector array with a source of radiation according to claim 1, wherein: the ray source is an X-ray source.
6. A system for aligning a detector array with a source of radiation according to claim 1, wherein: the adjusting piece comprises a first flat plate, a second flat plate and a third flat plate which are sequentially arranged from top to bottom and are parallel to each other;
the first flat plate is used for being connected with the ray source, a sliding block is arranged at the bottom of the first flat plate, and the first flat plate is rotatably connected with the sliding block;
the top surface of the second flat plate is provided with a sliding groove matched with the sliding block;
and a connecting plate is arranged between the third flat plate and the second flat plate, and an adjusting bolt is further arranged on the third flat plate and used for adjusting the pitching angle of the third flat plate.
7. A system for aligning a detector array with a source of radiation according to claim 1, wherein: the detector is a photomultiplier tube assembly.
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| CN201920519302.8U CN210166328U (en) | 2019-04-17 | 2019-04-17 | System for aligning detector array and ray source |
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| CN201920519302.8U CN210166328U (en) | 2019-04-17 | 2019-04-17 | System for aligning detector array and ray source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057848A (en) * | 2019-04-17 | 2019-07-26 | 苏州曼德克光电有限公司 | A kind of system and method being aligned for detector array with radiographic source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057848A (en) * | 2019-04-17 | 2019-07-26 | 苏州曼德克光电有限公司 | A kind of system and method being aligned for detector array with radiographic source |
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