CN209674014U - CT system and detection device for CT system - Google Patents
CT system and detection device for CT system Download PDFInfo
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- CN209674014U CN209674014U CN201822120264.7U CN201822120264U CN209674014U CN 209674014 U CN209674014 U CN 209674014U CN 201822120264 U CN201822120264 U CN 201822120264U CN 209674014 U CN209674014 U CN 209674014U
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Abstract
The utility model discloses a kind of CT system and for the detection device of CT system.The device includes: high energy detector component, and high energy detector component includes multiple rows of high energy detector along desired trajectory arrangement；Low energy detector assembly is stacked with high energy detector component, and low energy detector assembly includes the multiple rows of low energy detector being intervally arranged along desired trajectory；Wherein, the number of rows of low energy detector is less than the number of rows of high energy detector；Every row's low energy detector covers row's high energy detector.According to CT system provided by the embodiment of the utility model and for the detection device of CT system, the resolution capability to material is improved.
Description
Technical field
The utility model relates to radiation detection arts more particularly to a kind of CT system and for the detection device of CT system.
Background technique
Currently, the computed tomography based on ray radiation imaging is widely used in safety inspection, especially use
Suspicious object in inspection luggage and articles.In the CT technology being imaged based on ray radiation, it can be obtained by CT data reconstruction
The feature distribution data of scanned object in tomography, by being analyzed characteristic, it can be achieved that common in luggage
Suspicion substance identified.
Common double-energy CT system uses double decker detector structure at present, dual intensity data for projection is obtained, to object to be detected
It is differentiated.But the double decker detector structure in current CT system can only at most provide dual intensity data for projection, limit pair
The resolution capability of material.
Utility model content
A kind of CT system of the utility model embodiment and the detection device for CT system, by projecting number using multipotency
According to improving the resolution capability to material.
According to the one side of the utility model embodiment, a kind of detection device for CT system is provided, which includes:
High energy detector component, high energy detector component include multiple rows of high energy detector along desired trajectory arrangement；
Low energy detector assembly is stacked with high energy detector component, and low energy detector assembly includes along desired trajectory
The multiple rows of low energy detector being intervally arranged；
Wherein, the number of rows of low energy detector is less than the number of rows of high energy detector；
Every row's low energy detector covers row's high energy detector.
In one embodiment, arbitrary neighborhood two rows high energy detector is closely arranged.
In one embodiment, multiple rows of high energy detector is intervally arranged along desired trajectory.
In one embodiment, the first default spacing is all had between arbitrary neighborhood two rows high energy detector.
In one embodiment, between the arbitrary neighborhood two rows high energy detector covered by low energy detector, be provided with to
The high energy detector that a few row is not covered by low energy detector.
In one embodiment, the high energy detector covered by low energy detector, with the height not covered by low energy detector
Energy detector is arranged alternately by desired trajectory.
In one embodiment, the second default spacing is all had between arbitrary neighborhood two rows low energy detector.
In one embodiment, the second default spacing is 5 to 80 millimeters；Or,
Second default spacing is 30 to 50 millimeters.
In one embodiment, desired trajectory is circular arc.
According to the another aspect of the utility model embodiment, a kind of detection device for CT system is provided, the device packet
It includes:
The first layer detector assembly that is stacked, second layer detector assembly ..., n-th layer detector assembly, N is
Integer greater than 2；
Wherein, first layer detector assembly includes multiple rows of first detector along desired trajectory arrangement, second layer detector
Component includes multiple rows of second detector ... ... being intervally arranged along desired trajectory, and n-th layer detector assembly includes along desired trajectory
The multiple rows of N detector being intervally arranged；
The corresponding energy of energy response peak value of the corresponding energy of energy response peak value of first detector, the second detector
Amount ..., the corresponding energy of energy response peak value of N detector is sequentially reduced；
The number of rows of detector is less than the number of rows of detector in kth Layer Detection device assembly, k=in+1 Layer Detection device assembly of kth
1,2 ... ... N-1；
Every row's detector in+1 Layer Detection device assembly of kth covers row's detector in kth Layer Detection device assembly.
According to the utility model embodiment in another aspect, providing a kind of CT system, which includes:
Scanning channel passes in and out CT system for inspected object；
Slip ring, for being rotated around scanning channel；
The radiographic source being connect with slip ring；And
The detection device on slip ring is oppositely arranged and is connected to radiographic source, and detection device is such as the utility model embodiment
The device of offer.
In one embodiment, CT system further include: data processing module, the data letter for being exported based on detection device
Number rebuild inspected object CT image.
According to the CT system in the utility model embodiment and for the detection device of CT system, detection device includes high energy
Detector assembly and the low energy detector assembly being stacked with high energy detector component, high energy detector component include along pre-
Multiple rows of high energy detector of fixed track arrangement, low energy detector assembly includes the multiple rows of low energy being intervally arranged along the desired trajectory
Detector, since the number of rows of low energy detector is less than the number of rows of high energy detector, and every row's low energy detector covers a row
High energy detector, therefore the ray that radiographic source issues can have three kinds of modes for penetrating detection device, so as to obtain three
Energy projected image, improves the resolution ratio to material.
Detailed description of the invention
It, below will be in the utility model embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Required attached drawing is briefly described, for those of ordinary skill in the art, what is do not made the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 shows the structural schematic diagram for the CT system that some embodiments of the utility model provide；
Fig. 2 shows the exemplary structure signals for the detection device for CT system that an embodiment of the present invention provides
Figure；
Fig. 3 shows the structural schematic diagram for the single row detector that some embodiments of the utility model provide；
Fig. 4 shows the side view of detection device in Fig. 2；
Fig. 5 shows the energy response curve of low energy detector and high energy detector in detection device in Fig. 2；
Fig. 6 shows the side view for the detection device that another embodiment of the utility model provides；
Fig. 7 shows the side view of the detection device of the utility model another embodiment offer.
Specific embodiment
The feature and exemplary embodiment of the various aspects of the utility model is described more fully below, in order to keep this practical new
The objects, technical solutions and advantages of type are more clearly understood, and with reference to the accompanying drawings and embodiments, carry out the utility model into one
Step detailed description.It should be understood that specific embodiment described herein is only configured to explain the utility model, it is not configured as
Limit the utility model.To those skilled in the art, the utility model can be in not needing these details
Implement in the case where some details.Below the description of embodiment is used for the purpose of mentioning by showing the example of the utility model
For being better understood to the utility model.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence " including ... ", it is not excluded that including
There is also other identical elements in the process, method, article or equipment of the element.
In order to better understand the utility model, below in conjunction with attached drawing, it is described in detail according to the utility model embodiment
CT system and detection device for CT system, it should be noted that these embodiments are not to disclose for limiting the utility model
Range.
Fig. 1 shows the structural schematic diagram of CT system provided by the embodiment of the utility model.As shown in Figure 1, CT system includes:
Scanning channel 1, radiographic source 2, detection device 3, slip ring 4, control device 5 and data processing equipment 6.
In the embodiments of the present invention, inspected object passes in and out CT system by scanning channel 1 along direction of transfer V.
Radiographic source 2 is connect with slip ring, for issuing beam.Radiographic source 2 can be common various models X-ray machine,
Accelerator, X-ray or gamma-ray device can be issued by being also possible to radioactive isotope, synchrotron radiation light source etc..
Detection device 3 is oppositely arranged with radiographic source 2, and detection device 3 is connected on slip ring 4.The reception of detection device 3 is penetrated
The beam across inspected object that line source 2 issues.
Slip ring 4 is rotated around scanning channel 1.Wherein, the rotation axis of slip ring 4 and scanning channel 1 transmit inspected object
Direction of transfer V it is substantially parallel.Slip ring 4 is rotated according to preset sweep parameter, to drive radiographic source 2 and detection device 3 to surround
Inspected object rotation, to complete the rotary scanning to inspected object.
Control device 5 controls the radiation-emitting of radiographic source 2, and controls adopting for the data-signal exported to detection device 3
Collection.Also, control device 5 is also used to control the movement of scanning channel 1 and slip ring 4.
Data processing equipment 6 is carried out based on the data-signal that detection device 3 generates during scanning inspected object
Processing, to rebuild the CT image for being examined article.
Fig. 2 shows the structural schematic diagrams for the detection device 3 that an embodiment of the present invention provides.With reference to Fig. 2, detection device
3 include:
High energy detector component 31, high energy detector component 31 include multiple rows of high energy detector along desired trajectory arrangement
311。
Low energy detector assembly 32 is stacked with high energy detector component 31, and low energy detector assembly 32 includes along pre-
Multiple rows of low energy detector 321 that fixed track is intervally arranged.
Wherein, low energy detector assembly 32 is disposed in proximity to the side of radiographic source 2, and high energy detector component 31 is set to far
Side from radiographic source 2.That is, the ray that radiographic source 2 issues initially enters low energy detector 321.
With continued reference to Fig. 2, high energy detector component 31 includes the row of arc track N shown in dotted line with the arrow along Fig. 2
The face array high energy detector 311 of column.Wherein, the high energy detector of face array includes multiple rows of high energy detector 311, and any
The high energy detector 311 of adjacent two rows is closely arranged.In other words, between the high energy detector 311 of arbitrary neighborhood two rows
Away from being substantially equal to 0.Optionally, the center of each high energy probe unit of face array can be distributed in the focus of radiographic source 2
For on the circular arc in the center of circle.
Optionally, the desired trajectory of multiple rows of high energy detector arrangement is the straight line parallel with direction of transfer V.
Fig. 3 shows the structural schematic diagram of single row detector provided by the embodiment of the utility model.Single row detector herein
It can be single low energy detector or single high energy detector.As shown in figure 3, single row detector is by multiple probe units
It arranges according to desired trajectory and to be formed.Wherein, each probe unit independently exports a data.Optionally, multiple probe units
Between continuously can arrange or be intervally arranged.
In the embodiments of the present invention, every row's high energy detector includes that multiple high energy by desired trajectory arrangement detect
Unit.With reference to Fig. 2, arching trajectory M arrangement of multiple high energy probe units in Fig. 2.Optionally, in every row's high energy detector
Multiple high energy probe units can arrange along straight line.
In the embodiments of the present invention, the arrangement track of the high energy probe unit in high energy detector can be and sweep
Retouch the substantially parallel straight line of the direction of transfer V in channel.That is, sender of multiple high energy probe units according to scanning channel
To arrangement.The arrangement track of high energy probe unit in high energy detector may be using the focus of radiographic source as the circle in the center of circle
Arc.
In the embodiments of the present invention, low energy detector assembly 32 includes multiple rows of interval arc track N by Fig. 2
The low energy detector 321 of arrangement.Optionally, the spacing between two neighboring low energy detector 321 can be equal, can not also phase
Deng.
Optionally, equal per the spacing between adjacent two rows of low energy detectors.Spacing between low energy detector 31 can be with
It is 5 to 80 millimeters, 10 to 70 millimeters, 20 to 60 millimeters, 30 to 50 millimeters, 35 to 45 millimeters, 36 to 40 millimeters or 38 millis
Rice.Specifically, it can be set according to the demand of inspected object.
Wherein, every row's low energy detector includes multiple low energy probe units arranged by desired trajectory.With reference to Fig. 2, often
Arrange multiple low energy probe units also arching trajectory arrangement in Fig. 2 in low energy detector.Optionally, every row's low energy detector
In multiple low probe units can also arrange according to the straight line parallel with direction of transfer V.
In the embodiments of the present invention, the number of rows of low energy detector 321 is less than the number of rows of high energy detector 311, and
And every row's low energy detector 321 covers row's high energy detector 321.Since the number of rows of low energy detector 321 is visited less than high energy
The number of rows of device 321 is surveyed, therefore includes the high energy detector covered by low energy detector and not by low energy in high energy detector component
The high energy detector of detector covering.
Fig. 4 shows the side view of detection device in Fig. 2.Fig. 5 shows the energy of low energy detector and high energy detector in Fig. 2
Response curve.As shown in figure 4, passing through what is issued using the detection device in Fig. 2, radiographic source 1 during using CT system
There are three types of the modes for penetrating detection device for X-ray: X-ray is directly entered low energy detector 321 and deposits, and penetrates low energy detector
321 X-ray enters back into the high energy detector deposition covered by low energy detector, and X-ray is directly entered not by low energy detector
The high energy detector and deposition of covering.
Wherein, since the number of rows of low energy detector 321 is less than the number of rows of high energy detector 311, high energy detector group
It just include the high energy detector not covered by low energy detector in part, therefore X-ray can just be deposited directly to and not visited by low energy
Survey the high energy detector of device covering.
Since every row's low energy detector 321 covers row's high energy detector 321, the ray of low energy detector is penetrated
The high energy detector covered by low energy detector can be deposited on.
As shown in figure 5, solid line represent be that the first energy response curve of low energy detector, dotted line represent is by low energy
What the second energy response curve, the chain-dotted line of the high energy detector of detector covering represented is the height not covered by low energy detector
The third energy response curve of energy detector.
With reference to Fig. 4 and Fig. 5, after X-ray is deposited on low energy detector, the first energy response of low energy detector 321 exists
Low energy region is than more significant.
When X-ray is deposited directly to the high energy detector not covered by low energy detector, do not covered by low energy detector
High energy detector third energy response it is more significant in high-energy section.
After X-ray, which penetrates low energy detector, is deposited on the high energy detector covered by low energy detector, detected by low energy
The high energy detector of device covering has second energy response different with the first energy response, and the second energy response is the first energy
The product of response and third energy response.Referring to Fig. 5, intermediate energy section ratio of second energy response between low energy region and high-energy section
It is more significant.
With continued reference to Fig. 5, for low energy detector, do not visited by high energy detector that low energy detector covers and by low energy
It surveys for the high energy detector these three types detector of device covering, the energy of the maximum photon of deposition fraction is not in every class detector
Together.
That is, the corresponding energy of peak value of the first energy response of low energy detector, being covered by low energy detector
The third of the corresponding energy of peak value of second energy response of high energy detector, the high energy detector not covered by low energy detector
The corresponding energy of the peak value of energy response successively increases.
Therefore, using the available inspected object of CT system of detector assembly provided by the embodiment of the utility model
Three can data for projection.Compared to dual intensity projected image, three energy projected images can more accurately describe the decaying system of scanned material
Number function, to have stronger material discrimination ability.
In the embodiments of the present invention, other not set devices between low energy detector assembly and high energy detector component
Part, be in order to realize radiographic source project ray can directly do not covered by low energy detector high energy detector deposition, and
Realization deposits on the high energy detector covered by low energy detector, can throw to realize and obtain three using two layers of detector assembly
Shadow data, to improve the resolution capability to material.
As an example, for two different materials As and material B, wherein there are K- for the attenuation coefficient function of materials A
Edge jump, and there is no K-edge jumps for the attenuation coefficient function of material B, but on the whole with the attenuation coefficient function of materials A
It is close.Wherein, K-edge is the combination energy of atom K electron.When photon energy is more than K-edge, atom K electron and light
Photoelectric effect will occur for son effect, and the attenuation coefficient function of atom will generate jump.
Since X-ray energy spectrum is there are obvious Energy Broadening, the decaying system of the materials A reconstructed from dual intensity data for projection
Number is that the one kind of the attenuation coefficient function of materials A on X-ray energy spectrum is average, i.e. equivalent attenuation coefficient, it and the material reconstructed
Expect the equivalent attenuation coefficient of B very close to that is, can not be from dual intensity data for projection resolved materials A and material B.
Detection device provided by the embodiment of the utility model can provide three energy data for projection, and three energy data for projection can be given
Equivalent attenuation coefficient under three different power spectrums out has more one-dimensional data and is used to embody K- compared to dual intensity equivalent attenuation coefficient
Edge jump whether there is, and so as to distinguish materials A and material B, that is, improve the resolution capability to material.
In the embodiments of the present invention, low energy detector assembly 32 is disposed in proximity to the side of radiographic source 2, and not
High energy detector component 31 is disposed in proximity to the side of radiographic source 2, is in order to which the ray for realizing that radiographic source issues can penetrate
Low energy detector assembly hence into the high energy detector covered by low energy detector, and then obtains having the second energy response
Data for projection.
If high energy detector component 31 to be disposed in proximity to the side of radiographic source 2, and low energy detector assembly 32 is arranged
In the side far from radiographic source 2, then can not obtain three can data for projection.Generally, the thickness of high energy detector is larger, therefore penetrates
Whole photons in line will all deposit in high energy detector.If high energy detector component 31 is disposed in proximity to radiographic source 2
Side, then will lead to by high energy detector cover low energy detector in be there is no photon injection, thus can only obtain dual intensity throwing
Shadow data.
Crystal detection in high energy detector is generally thicker, therefore is set to the high energy detector far from 2 side of radiographic source
Component can fully absorb the x-ray photon of radiographic source transmitting, therefore the detection of the detection device in the utility model embodiment
It is high-efficient, picture noise is smaller and penetration power is strong.
In the embodiments of the present invention, the high energy detector covered by low energy detector has the second energy response,
And the high energy detector not covered by low energy detector has third energy response.In order to further increase the figure of inspected object
Image quality amount, and the uniformity and accuracy of the data for projection in high energy detector component with third energy response are improved, it can
High energy probe unit in high energy detector component is demarcated or calibrated.
As an example, when obtaining first not by the covering of low energy detector, multiple high energy detections are single in high energy detector
The first data that member exports respectively；Then low energy detector is covered on high energy detector, is covered with obtaining by low energy detector
Gai Shi, the second data that multiple high energy probe units in high energy detector export respectively, and with it is multiple in low energy detector
The third data that low energy probe unit exports respectively.Then, according to multiple first data, multiple second data and multiple third numbers
According to establishing the relationship of the first data Yu the second data and third data.
As a specific example, using the first data as independent variable, the second data and third data are built as dependent variable
Relationship between vertical first data and the second data, third data utilizes the second data and third data weighting to seek working as
When summation the first data of estimation, weight corresponding to weight corresponding to the second data and third data.
For each high energy probe unit in the high energy detector that in detection device, is covered by low energy detector, according to
The weight for the second data demarcated in advance and the weight of third data will cover the of the low energy probe unit of high energy probe unit
Three data and the second data of the high energy probe unit are weighted summation, estimate the high energy detection covered by low energy detector
Each high energy probe unit in device, the estimated projection data when not covered by low energy detector.
Then, by estimated projection corresponding to high energy probe unit each in the high energy detector covered by low energy detector
Data are not tied mutually by the data for projection that the high energy probe unit in high energy detector that low energy detector covers exports with other
It closes, to constitute the data for projection of the only high energy detector with third energy response, and then provides single energy of inspected object
Three-dimensional reconstruction result.
By improving the consistency of high energy detector output data in high energy detector component, available inspected object
More data, the uniformity and picture quality of data are improved, to further increase the resolution ratio to material.
Fig. 6 shows the side view for the detection device that another embodiment of the utility model provides.Detection device shown in Fig. 6
With detection device shown in Fig. 2 the difference is that:
Multiple rows of high energy detector in high energy detector component is intervally arranged along desired trajectory.
Wherein, can be equal for the spacing between any two rows of high energy detectors, it can not also wait.Optionally, in order to
The uniformity and picture quality of the data of high energy detector output spatially are kept, arbitrary neighborhood two rows high energy detector can be made
Between have equal spacing.
In the embodiments of the present invention, if it is equal per the spacing between adjacent two rows of low energy detectors, and per adjacent
Spacing between two rows of high energy detectors is also equal, in order to guarantee to include not covered by low energy detector in high energy detector component
High energy detector, then row's spacing of low energy detector be greater than high energy detector row's spacing.
In the embodiments of the present invention, in order to keep the uniformity and picture quality of data, arbitrary neighborhood two rows quilt
Between the high energy detector of low energy detector covering, it is provided with the high energy detector that at least a row is not covered by low energy detector.
Specifically, the high energy detector covered by low energy detector, with the high energy detector not covered by low energy detector
It is arranged alternately by desired trajectory, to guarantee data for projection with the second energy response and with the projection number of third energy response
According to being uniformly distributed, so that the picture quality of object to be detected is improved, to further increase the resolution capability to material.
The utility model embodiment also provides a kind of detection device, which includes:
The first layer detector assembly that is stacked, second layer detector assembly ..., n-th layer detector assembly, N is
Integer greater than 2.
Wherein, first layer detector assembly includes multiple rows of first detector along desired trajectory arrangement, second layer detector
Component includes multiple rows of second detector ... ... being intervally arranged along desired trajectory, and n-th layer detector assembly includes along desired trajectory
The multiple rows of N detector being intervally arranged.
The corresponding energy of energy response peak value of the corresponding energy of energy response peak value of first detector, the second detector
Amount ..., the corresponding energy of energy response peak value of N detector is sequentially reduced；
The number of rows of detector is less than the number of rows of detector in kth Layer Detection device assembly, k=in+1 Layer Detection device assembly of kth
1,2 ... ... N-1.
Every row's detector in+1 Layer Detection device assembly of kth covers row's detector in kth Layer Detection device assembly.
As an example, Fig. 7 shows the side view of the detection device as N=3.By the way that multi-layer detector component is arranged,
Multipotency data for projection more than four energy of available inspected object and four energy, to further improve the resolution to material
Rate.
According to it is provided by the embodiment of the utility model include three layers and three layers or more detector assembly detection device with
The detection device including two layers of detector assembly in conjunction with Fig. 2 to Fig. 6 is similar, will not be described in great detail herein.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can be readily occurred in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.
Claims (12)
1. a kind of detection device for CT system, which is characterized in that described device includes:
High energy detector component, the high energy detector component include multiple rows of high energy detector along desired trajectory arrangement；
Low energy detector assembly is stacked with the high energy detector component, and the low energy detector assembly includes along described
Multiple rows of low energy detector that desired trajectory is intervally arranged；
Wherein, the number of rows of the low energy detector is less than the number of rows of the high energy detector；
Low energy detector described in every row covers high energy detector described in a row.
2. device according to claim 1, which is characterized in that the two rows of high energy detectors of arbitrary neighborhood are closely arranged.
3. device according to claim 1, which is characterized in that multiple rows of high energy detector is arranged along the desired trajectory interval
Cloth.
4. the apparatus according to claim 1, which is characterized in that all had between the two rows of high energy detectors of arbitrary neighborhood
First default spacing.
5. the apparatus according to claim 1, which is characterized in that the arbitrary neighborhood two rows institute covered by the low energy detector
It states between high energy detector, is provided with the high energy detector that an at least row is not covered by the low energy detector.
6. the apparatus according to claim 1, which is characterized in that the high energy covered by the low energy detector detects
Device is arranged alternately with the high energy detector not by low energy detector covering by the desired trajectory.
7. the apparatus according to claim 1, which is characterized in that all had between the two rows of low energy detectors of arbitrary neighborhood
Second default spacing.
8. device according to claim 7, which is characterized in that the second default spacing is 5 to 80 millimeters；Or,
The second default spacing is 30 to 50 millimeters.
9. the apparatus according to claim 1, which is characterized in that the desired trajectory is circular arc.
10. a kind of detection device for CT system, which is characterized in that described device includes:
The first layer detector assembly that is stacked, second layer detector assembly ..., n-th layer detector assembly, the N is
Integer greater than 2；
Wherein, the first layer detector assembly includes multiple rows of first detector along desired trajectory arrangement, and the second layer is visited
Surveying device assembly includes multiple rows of second detector ... ... being intervally arranged along the desired trajectory, the n-th layer detector assembly packet
Include the multiple rows of N detector being intervally arranged along the desired trajectory；
The corresponding energy of energy response peak value, the energy response peak value of second detector of first detector are corresponding
Energy ..., the corresponding energy of energy response peak value of the N detector is sequentially reduced；
Number of rows of the number of rows of detector less than detector in kth Layer Detection device assembly in+1 Layer Detection device assembly of kth, k=1,
2 ... ... N-1；
Every row's detector in+1 Layer Detection device assembly of kth covers the detection of the row in the kth Layer Detection device assembly
Device.
11. a kind of CT system, which is characterized in that the system comprises:
Scanning channel passes in and out the CT system for inspected object；
Slip ring, for being rotated around the scanning channel；
The radiographic source being connect with the slip ring；And
The detection device for being oppositely arranged and being connected on the slip ring with the radiographic source, the detection device are such as claim
Device described in 1-10 any one.
12. system according to claim 11, which is characterized in that the system also includes:
Data processing module, the data-signal for being exported based on the detection device rebuild the CT figure of the inspected object
Picture.
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| CN109471185A (en) * | 2018-12-17 | 2019-03-15 | 同方威视技术股份有限公司 | CT system and detection device for CT system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109471185A (en) * | 2018-12-17 | 2019-03-15 | 同方威视技术股份有限公司 | CT system and detection device for CT system |
| CN109471185B (en) * | 2018-12-17 | 2024-09-27 | 同方威视技术股份有限公司 | CT system and detection device for CT system |
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