CN1178058C - Multi-source multi-direction ray source of single body - Google Patents
Multi-source multi-direction ray source of single body Download PDFInfo
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- CN1178058C CN1178058C CNB011237457A CN01123745A CN1178058C CN 1178058 C CN1178058 C CN 1178058C CN B011237457 A CNB011237457 A CN B011237457A CN 01123745 A CN01123745 A CN 01123745A CN 1178058 C CN1178058 C CN 1178058C
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- radiographic source
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Abstract
The present invention relates to an isotopic element radiation source used for a lossless dislocation imaging detection system of a major industrial object. The present invention aims to overcome the problem that when one radiation source is adopted, only a bundle of unidirectional rays is generated, and a formed transmission image is only a view (two-dimensional image) with one angle. The present invention realizes the purpose that one kind or two kinds of radioactive isotopic elements with different energy are used to form multi-direction rays by designing monomer multisource multi-direction radiation sources. Rays of different directions or angles and different energy can be simultaneously or respectively obtained. One or more than two detectors are used for receiving the rays, and two or more than two transmission and scattering images of different angles can be obtained, namely that a satisfied three-dimensional image can be obtained.
Description
Technical field
The present invention relates to the used radiographic source of a kind of large object nondestructive tomographic imaging detection system.
Background technology
Large object noninvasive imaging detection system generally is to utilize the transmission of radiation imaging at present.As patent No. CN1142609A, US5903623A promptly be.Because the material layer that ray sees through is very thick, have only the main matter on the raypath just imaging to be played a leading role, testing result can only obtain unidirectional transmission image, it is unknown adding the shape of tested object inner material and arranging, density also is unknown, therefore only relying on inner case and the kind that unidirectional transmission image is judged testee, obviously is very difficult.Utilize the Kang Pudun scattering, can be to the object fault imaging, as patent US5917880A, US4884289A, imaging is more clear, but all only gets specific fixed bed surface imaging, and it is relatively poor to detect dirigibility.
Summary of the invention
The objective of the invention is to propose a kind of beam of both can monomer list source obtaining one or two direction, also can the monomer double source obtain the beam equipment of the different-energy of two above directions.Receive by two or more detectors, thereby the transmission and the dispersion image of acquisition different angles promptly can obtain satisfied detection effect.
A kind of radiographic source that can be used for large object nondestructive tomographic imaging detection system, by the ray source core, plug formula source(-)holder, multi-angle combined type source switch, variable-frequency motor, radiographic source body and form near switch, it is characterized in that: the ray source core that is made of one or both radioactive isotopes is fixedly mounted on the plug formula source(-)holder, multi-angle combined type source switch and radiographic source body all have collimating slit, the radiographic source body is as the support substrate of multi-angle combined type source switch, when adopting a kind of radioactive isotope to make the ray source core, described multi-angle combined type source switch and radiographic source body all have two corresponding collimating slits, by the rotation of multi-angle combined type source switch in the radiographic source body, be equipped with that variable-frequency motor drives and near the control of switch, can obtain the ray of one or two different directions, radiographic source also can conductively-closed; When adopting two kinds of radioactive isotopes to make the ray source core, described multi-angle combined type source switch and radiographic source body all have four corresponding collimating slits, by the rotation of multi-angle combined type source switch in the radiographic source body, be equipped with that variable-frequency motor drives and near the control of switch, can obtain the ray of two or four different directions, radiographic source also can conductively-closed.
The used plug formula source(-)holder of the present invention is to utilize steel to make overcoat, inner does the ladder cylindrical body of shielding by plumbous, tungsten and depleted uranium, and its shape resembles bottle stopper, can make it fix as required, also can be driven by variable-frequency motor, makes its rotation.
The multi-angle combined type source switch that the present invention is used, it exposes shell is steel, inside is formed by lead, tungsten and depleted uranium shielding's combination of materials.
The used radiographic source body of the present invention is to be composited by shielding material steel, lead, tungsten and depleted uranium.
The present invention utilizes isotopic isotropy, by the rotation of multi-angle combined type source switch in the radiographic source body, is equipped with that variable-frequency motor drives and near the control of switch, reaches the purpose at the same time or separately connected of beam at different directions.
Description of drawings
The drawing of accompanying drawing is described as follows:
Fig. 1 is a monomer list source radiographic source front view;
Fig. 2-the 5th, monomer list source radiographic source vertical view;
Fig. 6 is a monomer double source radiographic source front view;
Fig. 7-the 10th, monomer double source radiographic source vertical view.
Embodiment
The present invention is described further below in conjunction with accompanying drawing.
Fig. 1 is a monomer list source radiographic source front view.1. variable-frequency motor; 2. radiographic source body; 3. ray source core; 4. collimating slit; 5. fill in the formula source(-)holder; 9. multi-angle combined type source switch.Plug formula source(-)holder 5 among Fig. 1 is fixed.Ray source core 3 is by the rotation of multi-angle combined type source switch 9 in radiographic source body 2, and is equipped with variable-frequency motor 1 and near the control of switch, can obtains the ray of one or two different directions respectively, also can conductively-closed, and shown in Fig. 2-5.Fig. 2 is a monomer list source radiographic source vertical view, and the angle of two beams is A (scope of A is 0 ~ 180 °), in tungsten piece or the depleted uranium (circle among the figure) that increases shielding action arranged, can be that cylindricality also can be other shape, but guarantee to have enough shielding actions.Fig. 3 is a monomer list source radiographic source vertical view, and multi-angle combined type source switch is at Fig. 2 position, be rotated counterclockwise angle A after, obtain one to the beam of front-right to emission.Fig. 4 is a monomer list source radiographic source vertical view, and multi-angle combined type source switch is at Fig. 2 position, and after the angle A that turns clockwise, obtaining one is the beam of the direction of A to angle with front-right.Fig. 5 is a monomer list source radiographic source vertical view, and multi-angle combined type source switch, makes and penetrates the source security mask behind the 180 °-0.5A that turns clockwise at Fig. 2 position, is off working state.
Fig. 6 is a monomer double source radiographic source front view.1. variable-frequency motor; 2. radiographic source body; 3. high-energy isotope ray source core; 4. collimating slit; 5. fill in the formula source(-)holder; 6. fill in formula source(-)holder electroplax support; 7. fill in formula source(-)holder variable-frequency motor; 8. low-yield isotope ray source core; 9. multi-angle combined type source switch; 10. shield depleted uranium (size is enough thick).Plug formula source(-)holder 5 among Fig. 6 is rotary.High-energy penetrates isotope line source core 3 and low-yield isotope ray source core 8 passes through the rotation of multi-angle combined type source switch 9 in radiographic source body 2, and be equipped with that variable-frequency motor 1 drives and near the control of switch, can obtain the ray of two or four different directions respectively, also can conductively-closed, shown in Fig. 7-10.Fig. 7 is the radiographic source off-position, and the tungsten piece and the depleted uranium (circle in the figure) that increase shielding action are arranged in multi-angle combined type source switch and the radiographic source body, can be that cylindricality also can be other shape, but guarantee that shielding action is enough.Fig. 8 be multi-angle combined type source switch at Fig. 7 position half-twist, can obtain the beam of four direction as shown in the figure.Wherein: both direction is a high energy beam left, and both direction is a low energy beams to the right.When rotary plug formula source(-)holder rotates 180 ° again, obtain the low energy beams of both direction left, the high energy beam of both direction to the right, stack up is equivalent to 8 beams.Fig. 9 for multi-angle combined type source switch at Fig. 7 position A angle that turns clockwise, can obtain two complete rightabout beams, when plug formula source(-)holder again behind the Rotate 180 °, the height energy position of two kinds of beams is just in time opposite, is equivalent to obtain 4 beams.Figure 10 is rotated counterclockwise the A angle for multi-angle combined type source switch at Fig. 7 position, is equivalent to the situation of Fig. 9, also can obtain 4 beams.
Claims (4)
1. radiographic source that can be used for large object nondestructive tomographic imaging detection system, by the ray source core, plug formula source(-)holder, multi-angle combined type source switch, variable-frequency motor, radiographic source body and form near switch, it is characterized in that: the ray source core that is made of one or both radioactive isotopes is fixedly mounted on the plug formula source(-)holder, multi-angle combined type source switch and radiographic source body all have collimating slit, the radiographic source body is as the support substrate of multi-angle combined type source switch, when adopting a kind of radioactive isotope to make the ray source core, described multi-angle combined type source switch and radiographic source body all have two corresponding collimating slits, by the rotation of multi-angle combined type source switch in the radiographic source body, be equipped with that variable-frequency motor drives and near the control of switch, can obtain the ray of one or two different directions, radiographic source also can conductively-closed; When adopting two kinds of radioactive isotopes to make the ray source core, described multi-angle combined type source switch and radiographic source body all have four corresponding collimating slits, by the rotation of multi-angle combined type source switch in the radiographic source body, be equipped with that variable-frequency motor drives and near the control of switch, can obtain the ray of two or four different directions, radiographic source also can conductively-closed.
2. a kind of radiographic source that can be used for large object nondestructive tomographic imaging detection system according to claim 1, it is characterized in that: described plug formula source(-)holder is to utilize steel to make overcoat, the inner ladder cylindrical body of doing shielding by lead, tungsten and depleted uranium, shape resembles bottle stopper, can make it fix as required, also can drive, make its rotation by variable-frequency motor.
3. a kind of radiographic source that can be used for large object nondestructive tomographic imaging detection system according to claim 1 is characterized in that: the exposure sheathing material of described multi-angle combined type source switch is a steel, and inside is formed by lead, tungsten and depleted uranium shielding's combination of materials.
4. a kind of radiographic source that can be used for large object nondestructive tomographic imaging detection system according to claim 1 is characterized in that: described radiographic source body is to be composited by shielding material steel, lead, tungsten and depleted uranium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011237457A CN1178058C (en) | 2001-07-31 | 2001-07-31 | Multi-source multi-direction ray source of single body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011237457A CN1178058C (en) | 2001-07-31 | 2001-07-31 | Multi-source multi-direction ray source of single body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1334459A CN1334459A (en) | 2002-02-06 |
| CN1178058C true CN1178058C (en) | 2004-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011237457A Expired - Fee Related CN1178058C (en) | 2001-07-31 | 2001-07-31 | Multi-source multi-direction ray source of single body |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101231254B (en) * | 2007-01-24 | 2010-08-11 | 清华大学 | Double source three-dimensional image forming method and system |
| KR101378757B1 (en) * | 2012-08-30 | 2014-03-27 | 한국원자력연구원 | Radiation imaging equipment and method available to obtain element date of material and select dimensions of image |
| CN106153407A (en) * | 2015-04-02 | 2016-11-23 | 赵正芳 | A kind of gas sample detection equipment |
| CN111982936B (en) * | 2020-08-25 | 2023-10-10 | 绍兴市特种设备检测院 | X-ray automatic detection device for heat exchanger tube-tube plate welding seam |
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2001
- 2001-07-31 CN CNB011237457A patent/CN1178058C/en not_active Expired - Fee Related
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| CN1334459A (en) | 2002-02-06 |
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Granted publication date: 20041201 Termination date: 20170731 |