CN108287359A - radioactive source positioning system and method - Google Patents
radioactive source positioning system and method Download PDFInfo
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- CN108287359A CN108287359A CN201711422850.0A CN201711422850A CN108287359A CN 108287359 A CN108287359 A CN 108287359A CN 201711422850 A CN201711422850 A CN 201711422850A CN 108287359 A CN108287359 A CN 108287359A
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- 230000002285 radioactive effect Effects 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000013078 crystal Substances 0.000 claims abstract description 46
- 230000004044 response Effects 0.000 claims abstract description 19
- 230000004807 localization Effects 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000001959 radiotherapy Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/003—Scintillation (flow) cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/1603—Measuring radiation intensity with a combination of at least two different types of detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/18—Measuring radiation intensity with counting-tube arrangements, e.g. with Geiger counters
Abstract
The invention discloses a kind of radioactive source positioning system and methods, wherein system includes：Detector, detector include thin slice scintillation crystal, sheet blocks piece and photodetector, and sheet blocks piece is bonded with any surface in the maximum two sides of the area of thin slice scintillation crystal, and photodetector is coupled with any surface outside the maximum two sides of the area of thin slice scintillation crystal；Rotary head is rotated for controlling detector according to pre-set velocity；The angle counting rate response curve of acquisition and processing center when detector carries out 360 degree rotation by rotary head for obtaining detector, and the normal on area maximum two sides when counting rate maximum is obtained, the normal direction to be directed toward thin slice scintillation crystal according to sheet blocks piece obtains radioactive source direction.The normal direction that the system can be directed toward thin slice scintillation crystal according to sheet blocks piece obtains radioactive source direction, finds emission source, effectively improves detectivity, expands the positioning visual field, avoids blind search, improves the efficiency of radioactive source search.
Description
Technical field
The present invention relates to nuclear radiation detection technical field, more particularly to a kind of radioactive source positioning system and method.
Background technology
With the development of science and technology, radioactive source is widely used in the various aspects such as industry, agricultural, medicine, military affairs, such as eat
Object sterilizing, nondestructive inspection, radiotherapy etc..However, since radioactive source energy is high, ionising radiation can be caused, cell is caused
Lesion destroys cell tissue, or even is damaged to human body, has prodigious danger.Therefore, it is necessary to be carried out to radioactive source
Strict control and monitoring need quickly to find radioactive source when loss, leakage or stolen event occur for radioactive source, with
Reduce its harm.
Gamma dosemeters or spectrometer is used to carry out radioactive source searching in the related technology, still, these detectors not side of having
To stationkeeping ability, needs the methods of artificial, vehicle-mounted or airborne carrying nuclear radiation detector to carry out inch-by-inch search, cause to detect
More blindly, process takes longer, the efficiency of reduction radioactive source search to method, and sources personnel and be easy closely to be radiated
Source radiation causes extra dose to irradiate.Although there is the detector such as encoding board imaging detector of imaging capability, put for gamma
The collimator and Compton camera for penetrating source position indicator are also exploited, but these detector detectivities are relatively low, cost
It is high.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of radioactive source positioning system, which can improve detection spirit
Sensitivity expands the positioning visual field, avoids blind search, improves the efficiency of radioactive source search.
It is another object of the present invention to propose a kind of radioactive source localization method.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of radioactive source positioning system, including：Detection
Device, the detector include thin slice scintillation crystal, sheet blocks piece and photodetector, the sheet blocks piece and the thin slice
Any surface is bonded in the maximum two sides of area of scintillation crystal, and the area of the photodetector and the thin slice scintillation crystal is most
Any surface couples outside big two sides；Rotary head is rotated for controlling the detector according to pre-set velocity；In acquisition and processing
The heart, when the detector carries out 360 degree rotation by the rotary head, angle-counting for obtaining the detector
Rate response curve, and the normal on area maximum two sides when counting rate maximum is obtained, to be referred to according to the sheet blocks piece
Radioactive source direction is obtained to the normal direction of the thin slice scintillation crystal.
The radioactive source positioning system of the embodiment of the present invention can pass through angle-count rate response curve of acquisition detector
The normal on area maximum two sides when counting rate maximum is obtained, to be directed toward the normal of thin slice scintillation crystal according to sheet blocks piece
Direction obtains radioactive source direction, and 360 degree of searching radioactive sources effectively improve detectivity, and position fixing process is simple, and it is fixed to expand
The position visual field, avoids blind search, further increases the efficiency of radioactive source search, reduces cost of manufacture.
Further, in one embodiment of the invention, the thickness of the thin slice scintillation crystal is less than predetermined threshold value, institute
Predetermined threshold value is stated to be obtained according to long and width.
Further, in one embodiment of the invention, the material of the thin slice scintillation crystal includes organic scintillator
And inorganic scintillator.
Further, in one embodiment of the invention, the sheet blocks piece is that single density is greater than or equal to 1g/
cm3Material.
Further, in one embodiment of the invention, the thin slice scintillation crystal and the sheet blocks piece are single
It is a.
Further, in one embodiment of the invention, the angle of the detector-count rate response curve negotiating is more
A angle acquisition data fit approach obtains counting rate maximum point, and rotation angle is made to be less than 360 degree.
In order to achieve the above objectives, another aspect of the present invention embodiment proposes a kind of radioactive source localization method, including following
Step：Detector 360 degree rotation is controlled according to pre-set velocity；Obtain angle-count rate response curve of the detector；It is counting
When digit rate maximum, the normal on the maximum two sides of area of thin slice scintillation crystal is obtained；It is directed toward the thin slice according to sheet blocks piece
The normal direction of scintillation crystal obtains radioactive source direction.
The radioactive source localization method of the embodiment of the present invention can pass through angle-count rate response curve of acquisition detector
The normal on area maximum two sides when counting rate maximum is obtained, to be directed toward the normal of thin slice scintillation crystal according to sheet blocks piece
Direction obtains radioactive source direction, and 360 degree of searching radioactive sources effectively improve detectivity, and position fixing process is simple, and it is fixed to expand
The position visual field, avoids blind search, further increases the efficiency of radioactive source search, reduces cost of manufacture.
Further, in one embodiment of the invention, the thickness of the thin slice scintillation crystal is less than predetermined threshold value, institute
Predetermined threshold value is stated to be obtained according to long and width.
Further, in one embodiment of the invention, the material of the thin slice scintillation crystal includes organic scintillator
And inorganic scintillator.
Further, in one embodiment of the invention, the sheet blocks piece is that single density is greater than or equal to 1g/
cm3Material.
Further, in one embodiment of the invention, the thin slice scintillation crystal and the sheet blocks piece are single
It is a.
Further, in one embodiment of the invention, the angle of the detector-count rate response curve negotiating is more
A angle acquisition data fit approach obtains counting rate maximum point, and rotation angle is made to be less than 360 degree.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obviously, or practice through the invention is recognized.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram according to the radioactive source positioning system of the embodiment of the present invention；
Fig. 2 is angle-count rate response curve synoptic diagram according to one embodiment of the invention；
Fig. 3 is to send out flow chart according to the radioactive source localization method of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, the example of embodiment is shown in the accompanying drawings, wherein identical from beginning to end
Or similar label indicates same or similar element or element with the same or similar functions.It is retouched below with reference to attached drawing
The embodiment stated is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
The radioactive source positioning system proposed according to embodiments of the present invention and method are described with reference to the accompanying drawings, first by reference
Attached drawing describes the radioactive source positioning system proposed according to embodiments of the present invention.
Fig. 1 is the structural schematic diagram of the radioactive source positioning system of the embodiment of the present invention.
As shown in Figure 1, the radioactive source positioning system 10 includes：In detector 100, rotary head 200 and acquisition and processing
The heart.
Wherein, detector 100 includes thin slice scintillation crystal 101, sheet blocks piece 102 and photodetector 103, thin slice resistance
Catch 102 is bonded with any surface in the maximum two sides of the area of thin slice scintillation crystal 101, and photodetector 103 is flickered with thin slice
Any surface couples outside the maximum two sides of area of crystal 101；Rotary head 200 is for controlling detector 100 according to pre-set velocity
Rotation.Acquisition and processing center, when detector 100 carries out 360 degree rotation by rotary head 200, for obtaining detector
100 angle-count rate response curve, and the normal on area maximum two sides when counting rate maximum is obtained, to be hindered according to thin slice
The normal direction that catch 102 is directed toward thin slice scintillation crystal 101 obtains radioactive source direction.The system 10 of the embodiment of the present invention can root
The normal direction that thin slice scintillation crystal 101 is directed toward according to sheet blocks piece 102 obtains radioactive source direction, sensitive to improve detection
Degree expands the positioning visual field, avoids blind search, improves the efficiency of radioactive source search.
Wherein, in one embodiment of the invention, the angle of detector-multiple angles of count rate response curve negotiating are adopted
Collect data fit approach and obtain counting rate maximum point, rotation angle is made to be less than 360 degree.
It is understood that the radioactive source positioning system 10 of the embodiment of the present invention is by detector 100,200 and of rotary head
Acquisition and processing center composition.Wherein, detector 100 is by thin slice scintillation crystal 101, sheet blocks piece 102 and photodetector
103 are constituted.The positioning system 10 of the embodiment of the present invention can carry out 360 degree rotation by rotary head 200, to acquisition and place
According to the angle-count rate response curve for obtaining detector 100, angle-count rate response curve of detector can be at reason center
By multiple angle acquisition data fit approach, to obtain counting rate maximum point, wherein rotation angle is less than 360 degree, angle-
Count rate response curve as shown in Fig. 2, when to obtain counting rate maximum the maximum two sides of area normal, to be hindered according to thin slice
The normal direction that catch 102 is directed toward thin slice scintillation crystal 101 obtains radioactive source direction.The system 10 of the embodiment of the present invention makes letter
It is single and of low cost；Position fixing process is simple and quick, effectively avoids blind search；Higher sensitivity not only may be implemented, but also
It can be with 360 degree of searching emission sources.
Further, in one embodiment of the invention, the thickness of thin slice scintillation crystal 101 is less than predetermined threshold value, in advance
If threshold value is obtained according to long and width.
It is understood that the thickness of thin slice scintillation crystal 101 can be obtained according to its length and width, and thickness is much smaller than
It is long and wide.
Further, in one embodiment of the invention, the material of thin slice scintillation crystal 101 include organic scintillator and
Inorganic scintillator.
Further, in one embodiment of the invention, sheet blocks piece 102 is that single density is greater than or equal to 1g/
cm3Material.
Further, in one embodiment of the invention, thin slice scintillation crystal 101 and sheet blocks piece 102 are single.
It is understood that it is single that thin slice scintillation crystal 101 and sheet blocks piece 102, which are, system has effectively been saved
Make cost.
In addition, the radioactive source positioning system 10 of the embodiment of the present invention can also be positioned over automobile, unmanned plane, helicopter etc.
In other mobile devices, moved to radioactive source so as to measure the direction controlling mobile device obtained by detector 100, and
And can also be used in combination with the radioactive source positioning system of other high position precisions, low detection efficient, further increase detection
Accuracy, improve the efficiency of detection.
The radioactive source positioning system proposed according to embodiments of the present invention can pass through angle-counting rate of acquisition detector
Response curve obtains the normal on area maximum two sides when counting rate maximum, brilliant to be directed toward thin slice flicker according to sheet blocks piece
The normal direction of body obtains radioactive source direction, and 360 degree of searching radioactive sources effectively improve detectivity, and position fixing process letter
It is single, expand the positioning visual field, avoid blind search, further increase the efficiency of radioactive source search, reduces cost of manufacture.
The radioactive source localization method for describing to propose according to embodiments of the present invention referring next to attached drawing.
Fig. 3 is the flow chart of the radioactive source localization method of the embodiment of the present invention.
As shown in figure 3, the radioactive source localization method includes the following steps：
In step S301, detector 360 degree rotation is controlled according to pre-set velocity.
In step s 302, angle-count rate response curve of detector is obtained.
In step S303, in counting rate maximum, the normal on the maximum two sides of area of thin slice scintillation crystal is obtained.
In step s 304, the normal direction for thin slice scintillation crystal being directed toward according to sheet blocks piece obtains radioactive source direction.
Further, in one embodiment of the invention, the thickness of thin slice scintillation crystal is less than predetermined threshold value, presets threshold
Value is obtained according to long and width.
Further, in one embodiment of the invention, the material of thin slice scintillation crystal includes organic scintillator and nothing
Machine scintillator.
Further, in one embodiment of the invention, sheet blocks piece is that single density is greater than or equal to 1g/cm3
Material.
Further, in one embodiment of the invention, thin slice scintillation crystal and sheet blocks piece are single.
Further, in one embodiment of the invention, the angle of detector-count rate response curve can be by several
Angle acquisition data fit approach obtains counting rate maximum point, and rotation angle is made to be less than 360 degree.
It should be noted that the aforementioned explanation to radioactive source positioning system embodiment is also applied for putting for the embodiment
Source localization method is penetrated, details are not described herein again.
The radioactive source localization method proposed according to embodiments of the present invention can pass through angle-counting rate of acquisition detector
Response curve obtains the normal on area maximum two sides when counting rate maximum, brilliant to be directed toward thin slice flicker according to sheet blocks piece
The normal direction of body obtains radioactive source direction, and 360 degree of searching radioactive sources effectively improve detectivity, and position fixing process letter
It is single, expand the positioning visual field, avoid blind search, further increase the efficiency of radioactive source search, reduces cost of manufacture.
In the description of the present invention, it is to be understood that, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of radioactive source positioning system, which is characterized in that including：
Detector, the detector include thin slice scintillation crystal, sheet blocks piece and photodetector, the sheet blocks piece with
Any surface is bonded in the maximum two sides of area of the thin slice scintillation crystal, the photodetector and the thin slice scintillation crystal
The maximum two sides of area outside any surface coupling；
Rotary head is rotated for controlling the detector according to pre-set velocity；And
Acquisition and processing center, when the detector carries out 360 degree rotation by the rotary head, for obtaining the spy
Angle-count rate response curve of device is surveyed, and obtains the normal on area maximum two sides when counting rate maximum, with according to institute
It states sheet blocks piece and is directed toward the normal direction of the thin slice scintillation crystal and obtain radioactive source direction.
2. radioactive source positioning system according to claim 1, which is characterized in that the thickness of the thin slice scintillation crystal is less than
Predetermined threshold value, the predetermined threshold value are obtained according to long and width.
3. radioactive source positioning system according to claim 1, which is characterized in that the material of the thin slice scintillation crystal includes
Organic scintillator and inorganic scintillator.
4. radioactive source positioning system according to claim 1, which is characterized in that the sheet blocks piece is that single density is big
In or equal to 1g/cm3Material.
5. radioactive source positioning system according to claim 1, which is characterized in that the angle of the detector-counting rate is rung
It answers the multiple angle acquisition data fit approach of curve negotiating to obtain counting rate maximum point, rotation angle is made to be less than 360 degree.
6. a kind of radioactive source localization method, which is characterized in that include the following steps：
Detector 360 degree rotation is controlled according to pre-set velocity；
Obtain angle-count rate response curve of the detector；
In counting rate maximum, the normal on the maximum two sides of area of thin slice scintillation crystal is obtained；And
The normal direction that the thin slice scintillation crystal is directed toward according to sheet blocks piece obtains radioactive source direction.
7. radioactive source localization method according to claim 6, which is characterized in that the thickness of the thin slice scintillation crystal is less than
Predetermined threshold value, the predetermined threshold value are obtained according to long and width.
8. radioactive source localization method according to claim 6, which is characterized in that the material of the thin slice scintillation crystal includes
Organic scintillator and inorganic scintillator.
9. radioactive source localization method according to claim 6, which is characterized in that the sheet blocks piece is that single density is big
In or equal to 1g/cm3Material.
10. radioactive source localization method according to claim 6, which is characterized in that the angle of the detector-counting rate is rung
It answers the multiple angle acquisition data fit approach of curve negotiating to obtain counting rate maximum point, rotation angle is made to be less than 360 degree.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711422850.0A CN108287359B (en) | 2017-12-25 | 2017-12-25 | Radioactive source positioning system and method |
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|---|---|---|---|
| CN201711422850.0A CN108287359B (en) | 2017-12-25 | 2017-12-25 | Radioactive source positioning system and method |
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| CN108287359B CN108287359B (en) | 2019-11-05 |
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ID=62832212
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109633730A (en) * | 2018-12-18 | 2019-04-16 | 北京永新医疗设备有限公司 | The positioning system and localization method of radioactive source |
| CN109828299A (en) * | 2019-03-19 | 2019-05-31 | 山东大学 | A kind of gamma-rays dosage rate angle positioning device and method |
| CN113406686A (en) * | 2021-06-16 | 2021-09-17 | 中国科学院近代物理研究所 | Ion beam three-dimensional dose distribution detection device and method |
| CN113759413A (en) * | 2021-09-28 | 2021-12-07 | 北京科技大学 | Double-coding-plate combined radioactive source positioning system and positioning method |
| CN113874758A (en) * | 2019-04-12 | 2021-12-31 | 阿尔克蒂斯辐射探测器有限公司 | Panel radiation detector |
| CN117130032A (en) * | 2023-10-26 | 2023-11-28 | 北京中科核安科技有限公司 | Method, device and storage medium for orienting omnidirectional radioactive source |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109633730A (en) * | 2018-12-18 | 2019-04-16 | 北京永新医疗设备有限公司 | The positioning system and localization method of radioactive source |
| CN109828299A (en) * | 2019-03-19 | 2019-05-31 | 山东大学 | A kind of gamma-rays dosage rate angle positioning device and method |
| CN109828299B (en) * | 2019-03-19 | 2023-11-24 | 山东大学 | Gamma ray dosage rate angle positioning device and method |
| CN113874758A (en) * | 2019-04-12 | 2021-12-31 | 阿尔克蒂斯辐射探测器有限公司 | Panel radiation detector |
| CN113406686A (en) * | 2021-06-16 | 2021-09-17 | 中国科学院近代物理研究所 | Ion beam three-dimensional dose distribution detection device and method |
| CN113759413A (en) * | 2021-09-28 | 2021-12-07 | 北京科技大学 | Double-coding-plate combined radioactive source positioning system and positioning method |
| CN113759413B (en) * | 2021-09-28 | 2024-04-16 | 北京科技大学 | Radioactive source positioning system and method combining double coding plates |
| CN117130032A (en) * | 2023-10-26 | 2023-11-28 | 北京中科核安科技有限公司 | Method, device and storage medium for orienting omnidirectional radioactive source |
| CN117130032B (en) * | 2023-10-26 | 2024-02-13 | 北京中科核安科技有限公司 | Method, device and storage medium for orienting omnidirectional radioactive source |
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