CN2811991Y - Mechanical structure of an apparatus for CT safety detection of liquid by using ray source - Google Patents
Mechanical structure of an apparatus for CT safety detection of liquid by using ray source Download PDFInfo
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- CN2811991Y CN2811991Y CN 200420009912 CN200420009912U CN2811991Y CN 2811991 Y CN2811991 Y CN 2811991Y CN 200420009912 CN200420009912 CN 200420009912 CN 200420009912 U CN200420009912 U CN 200420009912U CN 2811991 Y CN2811991 Y CN 2811991Y
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- detector
- liquid
- radiographic source
- acquisition unit
- platform mechanism
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Abstract
A mechanical structure of an apparatus for CT safety detection for the liquid by using the radiation source relates to the radiation imaging detection technical field. The utility model comprises a radiation source, a detector, a data sampler, and a computer data processor. And the structural characteristic is that the radiation source is arranged at one side of the rotating platform mechanism for placing the liquid commodity inspected, and the detector and data sampler are arranged at the other side of the rotating platform mechanism opposite to the X, Y ray beam emitted from the radiation source. The data output cable of the detector and data sampler are all connected with the computer data processor. Compared with the prior art, the utility model is provided with small volume, strong anti-interference ability, high accuracy of detection, easy screen, and the using is safe and reliable.
Description
Technical field
The utility model relates to radiant image detection technique field, particularly with radiographic source liquid is carried out the physical construction of the device of CT safety detection.
Background technology
In the safety check system of civil aviaton, need under situation about not breaking a seal, check the liquid article that the passenger carries.The inspection method of using in the prior art mainly contains: chemical method, electromagnetic method and neutron detection method.Be divided into smell method of identification and ion scan explosive detection method etc. in the chemical detection method again, these methods often are subjected to having a strong impact on of detected material package encapsulation situation in actual applications, and the chemical detection method has the shortcoming that susceptibility is strong, false drop rate is high.Electromechanical detection method is subjected to electromagnetic interference (EMI) easily owing to weak output signal, and can not detect the liquid article with mental package.The use meeting of neutron detection method causes radiation residual because of " neutron activation " to tested liquid, and radiation shield complexity, poor stability, occupation area of equipment are big, investment is high, are not suitable for using on a large scale in the safety check system of civil aviaton.Existing X-ray scanning detection system is will see through the X ray of inspected object through in the detector, according to its Strength Changes, and the Density Distribution in the reflection inspected object, and transmitted intensity is transformed into gradation of image, thus obtain the fluoroscopy images of inspected object.Thisly carry out the X-ray scanning detection method of imaging and can't realize the imaging of the uniform liquid article of Density Distribution is detected by differentiating the inspected object density variation.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the purpose of this utility model provides a kind of physical construction of liquid being carried out the device of CT safety detection with radiographic source.It can utilize radiographic source that the liquid article of encapsulation is carried out the CT detection, thereby obtains the density of liquid information of surveying.The utlity model has that volume is little, accuracy is high, strong interference immunity, safe and reliable, the advantage that is easy to protect.Be applicable to the safety check system in civil aviaton and other important place.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes as follows:
A kind ofly with radiographic source liquid is carried out the physical construction of the device of CT safety detection, it comprises radiographic source, detector and data acquisition unit, computer data processor.Its design feature is, described radiographic source places rotatable platform mechanism one side that can place tested liquid article, and described detector and data acquisition unit place the opposite side of rotatable platform mechanism and X, the gamma-rays light beam that penetrates over against radiographic source.The data output cable of detector and data acquisition unit is connected with computer data processor.
In above-mentioned device, described radiographic source adopts X-ray machine or isotope.
In above-mentioned device, described detector adopts solid probe or gas detector.
The utility model is owing to adopted above-mentioned structure, utilize radiographic source that but the liquid article of its rotation of Be Controlled of encapsulation is carried out tomography CT detection, form the density information of the liquid article of surveying, again the dangerous liquid density value of storing in the survey density of liquid information and date storehouse is compared, thus judge the liquid of surveying whether be dangerous material.Compare with prior art, the utility model volume is little, the accuracy height of strong interference immunity, detection, be easy to shielding, safe and reliable.
Below in conjunction with accompanying drawing and concrete embodiment the utility model is described further.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, the utility model comprises the detector that adopts X-ray machine or isotopic radiographic source 1, integral module structure and data acquisition unit 4, computer data processor 6.Detector adopts solid probe or gas detector, comprises in the data acquisition unit that data amplification wave-shaping circuit can work in current integration mode or counting mode.The database that comprises the dangerous material material density in the computer data processor 6.Radiographic source 1 places rotatable platform mechanism 3 one sides that can place tested liquid article, and detector and data acquisition unit 4 place the opposite side of rotatable platform mechanism 3 and X, the gamma-rays light beam that penetrates over against radiographic source 1.The data output cable of detector and data acquisition unit 4 is connected with computer data processor 6.The co-ordination of radiographic source 1, detector and data acquisition unit 4, computer data processor 6 and rotatable platform mechanism 3 is by set scanning monitor 5 synchro control.
Step during the utility model device is used is:
1) connects power supply, tested liquid article is placed in the rotatable rotatable platform mechanism 3 by radiographic source 1, detector and data acquisition unit 4, computer data processor 6 and the rotatable platform mechanism 3 of scanning monitor 5 controls.
2) sending ray by radiographic source 1 passes liquid article and receives and form the projection data for projection by detector and data acquisition unit 4 over against ray beam.Scanning monitor 5 control rotatable platform mechanisms 3 drive liquid article with certain speed rotation, simultaneously detector and data acquisition unit 4 also under the control of scanning monitor 5 with certain speed sampling, obtain a plurality of projection data for projection of liquid article in this tomography.
3) data for projection is transferred to computer data processor 6 and proofreaies and correct, rebuilds, and calculates the fluid density of the liquid article of being surveyed, and the density of dangerous material in result and the existing database is made comparisons again, the detection information that shows tested liquid article directly perceived then.
Claims (3)
1, a kind of physical construction of liquid being carried out the device of CT safety detection with radiographic source, it comprises radiographic source (1), detector and data acquisition unit (4), computer data processor (6), it is characterized in that, described radiographic source (1) places rotatable platform mechanism (3) one sides that can place tested liquid article (2), described detector and data acquisition unit (4) place the opposite side of rotatable platform mechanism (3) and X, the gamma-rays light beam that penetrates over against radiographic source (1), and the data output cable of detector and data acquisition unit (4) is connected with computer data processor (6).
According to the physical construction of the described device of claim 1, it is characterized in that 2, described radiographic source (1) adopts X-ray machine or isotope source.
According to the physical construction of claim 1 or 2 described devices, it is characterized in that 3, described detector adopts solid probe or gas detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009912 CN2811991Y (en) | 2004-11-26 | 2004-11-26 | Mechanical structure of an apparatus for CT safety detection of liquid by using ray source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009912 CN2811991Y (en) | 2004-11-26 | 2004-11-26 | Mechanical structure of an apparatus for CT safety detection of liquid by using ray source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811991Y true CN2811991Y (en) | 2006-08-30 |
Family
ID=36938381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420009912 Expired - Fee Related CN2811991Y (en) | 2004-11-26 | 2004-11-26 | Mechanical structure of an apparatus for CT safety detection of liquid by using ray source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811991Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539461A (en) * | 2007-09-06 | 2012-07-04 | 清华大学 | Multi-bottle detection container |
-
2004
- 2004-11-26 CN CN 200420009912 patent/CN2811991Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539461A (en) * | 2007-09-06 | 2012-07-04 | 清华大学 | Multi-bottle detection container |
| CN102539461B (en) * | 2007-09-06 | 2013-10-09 | 清华大学 | Multi-bottle detection container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee after: Nuctech Company Limited Patentee after: Tsinghua University Address before: 100083 A, block 2907, Tongfang science and Technology Plaza, Beijing Co-patentee before: Qinghua Tongfang Weishi Tech Co.,Ltd. Patentee before: Tsinghua University |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060830 Termination date: 20131126 |