CN209055663U - A kind of pipeline radiation measurement assembly - Google Patents
A kind of pipeline radiation measurement assembly Download PDFInfo
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- CN209055663U CN209055663U CN201821457037.7U CN201821457037U CN209055663U CN 209055663 U CN209055663 U CN 209055663U CN 201821457037 U CN201821457037 U CN 201821457037U CN 209055663 U CN209055663 U CN 209055663U
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- scintillator
- pipeline
- radiation
- photomultiplier tube
- measurement assembly
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Abstract
The utility model discloses a kind of pipeline radiation measurement assemblies, for improving the accuracy of detection radiation results.The pipeline radiation measurement assembly includes the detector and main controller being electrically connected with each other, wherein: the detector includes scintillator and photomultiplier tube, the scintillator is set to the outside of the photomultiplier tube, for receiving the ray of Radiation emitting sources radiation and being converted into electric signal, by the electric signal transmission to the main controller；The scintillator is tubular structure；The main controller is handled to obtain radiation data the electric signal for receiving the electric signal.
Description
Technical field
The utility model relates to actinometry field more particularly to a kind of pipeline radiation measurement assemblies.
Background technique
Usually there are some tools, such as scaffold in nuclear power station, as the quantity of scaffold is accumulated over a long period, the foot of accumulation
Hand cradle completely outstripped nuclear island and allow area.But nuclear island radiation bad environments, used scaffold may be deposited
It is polluted in biggish Beta-ray nuclear element, if be directly taken, nuclear island is over-the-counter, and it will cause the nuclear radiation pollutions to periphery.
Therefore it needs to carry out nuclear radiation detection to scaffold before transporting scaffold.Since scaffold is tubular structure,
The nuclear radiation situation in scaffold part region can only be detected, the accuracy of testing result is lower for entire scaffold, this
Sample results in the scaffold that can also be continued to use to be transported to over-the-counter processing resulting in waste of resources, alternatively, heavier foot via radiation
Hand cradle continues to use, and safety is lower, causes security risk.
Utility model content
The utility model embodiment provides a kind of pipeline radiation measurement assembly, for improving the accurate of detection radiation results
Degree.
The utility model embodiment provides a kind of pipeline radiation measurement assembly, which includes mutually electric
Property connection detector and main controller, in which:
The detector includes scintillator and photomultiplier tube, and the scintillator is set to the outer of the photomultiplier tube
Side, for receiving the ray of Radiation emitting sources radiation and being converted into electric signal, by the electric signal transmission to the main controller；Institute
Stating scintillator is tubular structure；
The main controller is handled to obtain radiation data the electric signal for receiving the electric signal.
In the utility model embodiment, scintillator is tubular structure, so scintillator connects when detector is goed deep into pipeline
The ray for receiving each face radiation inside pipeline, can measure each face inside pipeline, i.e., carry out to pipeline inside comprehensive
Measurement, to improve the accuracy of pipeline radiation measurement.
Optionally, the scintillator is cyclic annular scintillator, and the ring-type scintillator is sheathed on the outer of the photomultiplier tube
Side, the photomultiplier tube are side window type photomultiplier tube.
Optionally, the scintillator is cup-shaped scintillator, wherein cup-shaped scintillator described in the photomultiplier tube face
Window is offered at bottom of a cup, and offers window at the side window of scintillator described in the photomultiplier tube face.
Above two optional mode provides two kinds of realization structures of scintillator, and one of which is cyclic structure, a kind of
It is cup-like structure, the polyhedral structure of scintillator may be implemented.
Optionally, the length of the scintillator is greater than or equal to the length of the photomultiplier tube.
In the utility model embodiment, the length of scintillator is greater than or equal to the length of photomultiplier tube, so that flashing
Photomultiplier tube is completely covered in body, so that photomultiplier tube receives the ray of more pipeline radiation, improves pipeline actinometry
As a result accuracy.
Optionally, the inner wall of the scintillator has diffusing characteristic diffuser.
Optionally, the inner wall of the scintillator is made of diffuse-reflective material.
Optionally, diffusing reflection coating is coated on the inner wall of the scintillator.
Above-mentioned three kinds optional modes make scintillator have diffusing characteristic diffuser, so that photomultiplier tube receives
The ray of more pipeline radiation, further increases the accuracy of pipeline radiation measurement.
Optionally, further includes:
Scalable component, the fixed detector in one end of the scalable component；Wherein, the scalable component includes
At least two telescopic rods, for adjusting the detection range of the detector.
In the embodiment of the present invention, scalable component can extend, and can also shrink, so as to realize that detector protrudes into pipe
Stroke inside road changes, and realizes the measurement to measurement point each inside longer pipe road.
Optionally, further includes:
Display unit, the display unit are fixed on the other end of the scalable component, electrically connect with the main controller
It connects, for receiving the radiation data from the main controller, and shows the radiation data.
Optionally, described to be electrically connected as wireless communication connection.
In the utility model embodiment, it is single that radiation data can be transferred to display through wireless communication by main controller
Radiation data is being locally displayed to realize in member.
In the utility model embodiment, scintillator is tubular structure, so scintillator connects when detector is goed deep into pipeline
The ray for receiving each face radiation inside pipeline, can measure each face inside pipeline, i.e., carry out to pipeline inside comprehensive
Measurement, to improve the accuracy of pipeline radiation measurement.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the present invention, it for those of ordinary skill in the art, without creative efforts, can be with root
Other attached drawings are obtained according to the attached drawing of offer.
Fig. 1 is a kind of structure chart of the pipeline radiation measurement assembly in the utility model embodiment；
Fig. 2 is a kind of structure chart of the scintillator in the utility model embodiment；
Fig. 3 is a kind of structure chart of the scintillator in the utility model embodiment；
Fig. 4 is a kind of structure chart of the pipeline radiation measurement assembly in the utility model embodiment；
Fig. 5 is the diffusing reflection schematic illustration in the utility model embodiment；
Fig. 6 is a kind of schematic diagram of the pipeline radiation measurement assembly in the utility model embodiment.
Specific embodiment
Technical solution provided by the embodiment of the utility model in order to better understand, below in conjunction with Figure of description and
Specific embodiment is described in detail.
Radiation measurement assembly can only realize the detection of plane at present, and β ray penetration capacity is weaker, and range is shorter, therefore
For tubular structure, the nuclear radiation situation of the partial region of tubular structure can only be detected, the accuracy of testing result is lower.
In consideration of it, the scintillator in radiation measurement assembly provided by the embodiment of the utility model is tubular structure, so visiting
When survey device is goed deep into pipeline, scintillator receives the ray of each face radiation inside pipeline, can measure each inside pipeline
A face measures pipeline inside comprehensively, to improve the accuracy of pipeline radiation measurement.
Technical solution provided by the embodiment of the utility model is introduced with reference to the accompanying drawings of the specification.
Referring to Figure 1, the utility model embodiment provides a kind of pipeline radiation measurement assembly, pipeline actinometry dress
Set detector 10 and main controller 20 including being electrically connected with each other, in which: detector 10 includes scintillator 101 and photomultiplier tube
102, scintillator 101 is set to the outside of photomultiplier tube 102, for receive radiation source for example pipeline radiation such as Fig. 1 arrow
Direction signal ray is simultaneously converted into electric signal, by electric signal transmission to main controller 20；Scintillator 101 is tubular structure；Main controller
20 for receiving electric signal, and is handled electric signal to obtain amount of radiation.In the utility model embodiment, photomultiplier tube
102 outside refers to the side close to 102 outer surface of side or photomultiplier tube of optical receiving end.Due to photomultiplier tube 102
The part being placed in inside scintillator 101 is actually sightless, therefore is illustrated in Fig. 1 with dotted line.
Specifically, the specific tubular structure of scintillator 101 is unlimited, for example, dodging if the cross section of pipeline is circle
The cross section of bright body 101 is also circle, if the cross section of pipeline is rectangle, the cross section of scintillator 101 can be square
Shape, is also possible to circle, and the shape of specific scintillator 101 is adapted with the shape of pipeline to be tested.Just it is with pipeline below
For cylindrical body pipeline, the realization structure of two kinds of scintillators 101 is provided.
In a kind of possible embodiment, Fig. 2 is referred to, scintillator 101 is cyclic annular scintillator, and photomultiplier tube 102 is
Side window type photomultiplier tube 102.When detector 10 is placed in pipeline, swash after the ray radiation to scintillator 101 of pipeline radiation
The ionization excitation of scintillator 101 is sent out to discharge scintillation photons.Scintillation photons inject photomultiplier transit by the side window of photomultiplier tube 102
The scintillation photons that scintillator 101 discharges are converted to electronics and doubled into current signal by pipe 102, photomultiplier tube 102, thus real
Now measure the purpose of pipeline amount of radiation.Since scintillator 101 is cyclic structure, it is possible to receive multiple directions it is irradiated come
Ray, so as to realize that, to the complete detection inside pipeline, 360 ° of ranges as much as possible are realized to the detection inside pipeline.
In alternatively possible embodiment, Fig. 3 is referred to, scintillator 101 is cup-shaped scintillator, wherein photomultiplier transit
Window is offered at the bottom of a cup of 102 face scintillator 101 of pipe and the side window of scintillator 101.Similarly, when detector 10 is placed in pipe
When in road, the ionization excitation of excitation scintillator 101 is after the ray radiation to scintillator 101 of pipeline radiation to discharge scintillation photons.It dodges
Bright photon injects photomultiplier tube 102 by the window that photomultiplier tube 102 opens up, and photomultiplier tube 102 releases scintillator 101
The scintillation photons put are converted to electronics and double into current signal, to realize the purpose of measurement pipeline amount of radiation.Due to flashing
Body 101 is cyclic structure, other than it can receive the irradiated next ray of multiple directions, has the tubulose of blind hole for one end
Structure, that is, one end of tubular structure is closed structure, substrate can receive the ray of tubular structure enclosure portion radiation,
So as to realize that, to the complete detection inside pipeline, 360 ° of ranges as much as possible are realized to the detection inside pipeline, meanwhile, make
It is wider with range.
In the utility model embodiment, the length of scintillator 101 is greater than or equal to the length of photomultiplier tube 102, so that
Obtaining scintillator 101 can all cover photomultiplier tube 102, so that photomultiplier tube 102 can receive more pipeline spokes
The ray penetrated further increases the accuracy of pipeline radiation measurement.As shown in figure 4, scintillator 101 surrounds completely in Fig. 4
Photomultiplier tube 102, since photomultiplier tube 102 is placed in inside scintillator 101, thus it is actually sightless, therefore with
Dotted line is illustrated.Fig. 4 is by taking scintillator 101 is cup-shaped scintillator as an example.
In the utility model embodiment, the inner wall of scintillator 101 is with diffusing characteristic diffuser, the radiation ray that will be received,
Such as β ray carries out diffusing reflection, so that photomultiplier tube 102 receives the ray of more pipeline radiation, further increases
The accuracy of pipeline radiation measurement.
101 top of cup-shaped scintillator and some distance of 102 detecting window of photomultiplier tube, therefore scintillator 101 receives
The photon for being stimulated and generating after to β radiation cannot be received by photomultiplier tube 102 completely.It, may in order to increase detection range
Embodiment in, the inner wall of scintillator 101 can be made of diffuse-reflective material, alternatively, being coated on the inner wall of scintillator 101
Diffusing reflection coating can make scintillator 101 have diffusing characteristic diffuser, so that cup-shaped scintillator 101 is stimulated and produces
Raw photon is received by photomultiplier tube 102 to greatest extent by irreflexive mode, improves Beta-ray detection efficient.Such as
Irreflexive principle shown in Fig. 5 (the right) is reflected compared to other mirror surfaces (such as left side Fig. 5), and diffusing reflection can significantly improve
The receiving efficiency of light simultaneously increases receiving area.In addition, pipeline radiation detector assembly provided by the embodiment of the utility model may be used also
To improve detection efficiency, for example, the cup-shaped scintillator 101 that length is about 40 centimetres, so that it may pipeline of the measurement more than 40 centimetres
Surface area pass through pipeline radiation detector assembly provided by the embodiment of the utility model for example, length is about 1.5 meters of steel pipe
Protrude into steel duct, it is only necessary to about extend into the different depth of steel pipe three times, so that it may complete the measurement of entire steel pipe.
Refer to Fig. 6, in the utility model embodiment, pipeline radiation detector assembly further includes scalable component 30, this can
One end fixed detector 10 of telescopic component 30, the scalable component 30 include at least two telescopic rods, and any two mutually interconnect
A telescopic rod in the telescopic rod connect can be placed in another telescopic rod, and it is flexible to protrude into another for one telescopic rod of adjusting in this way
Length in bar can realize the detection range for adjusting detector 10.When user holds scalable component 30, by scalable component 30
It protrudes into inside pipeline to be measured, adjusts the length of scalable component 30, so that it may realize measurement different inside measurement pipeline
Point, without realizing the measurement of entire pipeline for pipe cutting.Since the setting of multiple telescopic rods is convenient for surveying according to demand
Amount tubular structure also may be implemented tubular structure and more accurately measure even if the length of tubular structure is longer.
In the utility model embodiment, pipeline radiation detector assembly further includes display unit 40, and the display unit 40 is fixed
In the other end of scalable component 30, it is electrically connected with main controller 20, for receiving the radiation data for carrying out master 20, and shows
Show radiation data, radiation data is being locally displayed to realize, is understanding the radiation event of tubular structure in time convenient for operating personnel.
In possible embodiment, it is electrically connected as the connection of the wireless communications such as bluetooth.Further, main controller 20 can also be by wireless
The mode of communication is connect with remote client end, and measurement result is transferred to remote client end, is convenient for background work personnel
The radiation event of tubular structure is understood in time.Detector 10 and main controller 20 is illustrated to be packaged together in Fig. 6.
To sum up, the scintillator 101 in radiation measurement assembly provided by the embodiment of the utility model is tubular structure, so visiting
When survey device 10 is goed deep into pipeline, scintillator 101 receives the ray of each face radiation inside pipeline, can measure in pipeline
Each face in portion, i.e., measure pipeline inside comprehensively, to improve the accuracy of pipeline radiation measurement.
Although the preferred embodiment of the utility model has been described, once a person skilled in the art knows basic
Creative concept, then additional changes and modifications can be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as
It includes preferred embodiment and falls into all change and modification of the scope of the utility model.
Obviously, those skilled in the art the utility model embodiment can be carried out various modification and variations without departing from
The spirit and scope of the utility model embodiment.In this way, if these modifications and variations of the utility model embodiment belong to this
Within the scope of utility model claims and its equivalent technologies, then the utility model is also intended to encompass these modification and variations and exists
It is interior.
Claims (10)
1. a kind of pipeline radiation measurement assembly, which is characterized in that including the detector and main controller being electrically connected with each other, in which:
The detector includes scintillator and photomultiplier tube, and the scintillator is set to the outside of the photomultiplier tube, is used
In the ray for receiving Radiation emitting sources radiation and it is converted into electric signal, by the electric signal transmission to the main controller；The sudden strain of a muscle
Bright body is tubular structure；
The main controller is handled to obtain radiation data the electric signal for receiving the electric signal.
2. pipeline radiation measurement assembly as described in claim 1, which is characterized in that the scintillator is cyclic annular scintillator, institute
The outside that cyclic annular scintillator is sheathed on the photomultiplier tube is stated, the photomultiplier tube is side window type photomultiplier tube.
3. pipeline radiation measurement assembly as described in claim 1, which is characterized in that the scintillator is cup-shaped scintillator,
In, window, and the photomultiplier tube face institute are offered at the bottom of a cup of cup-shaped scintillator described in the photomultiplier tube face
It states and offers window at the side window of scintillator.
4. pipeline radiation measurement assembly as claimed in claim 2 or claim 3, which is characterized in that the length of the scintillator be greater than or
Equal to the length of the photomultiplier tube.
5. pipeline radiation measurement assembly as claimed in claim 4, which is characterized in that the inner wall of the scintillator has diffusing reflection
Characteristic.
6. pipeline radiation measurement assembly as claimed in claim 5, which is characterized in that the inner wall of the scintillator is by diffusing reflection material
Material is made.
7. pipeline radiation measurement assembly as claimed in claim 5, which is characterized in that coated with unrestrained on the inner wall of the scintillator
Reflective coating.
8. pipeline radiation measurement assembly as described in claim 1, which is characterized in that further include:
Scalable component, the fixed detector in one end of the scalable component；Wherein, the scalable component includes at least
Two telescopic rods, for adjusting the detection range of the detector.
9. pipeline radiation measurement assembly as claimed in claim 8, which is characterized in that further include:
Display unit, the display unit are fixed on the other end of the scalable component, are electrically connected with the main controller, use
In radiation data of the reception from the main controller, and show the radiation data.
10. pipeline radiation measurement assembly as claimed in claim 9, which is characterized in that described be electrically connected connects for wireless communication
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457037.7U CN209055663U (en) | 2018-09-06 | 2018-09-06 | A kind of pipeline radiation measurement assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821457037.7U CN209055663U (en) | 2018-09-06 | 2018-09-06 | A kind of pipeline radiation measurement assembly |
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| CN209055663U true CN209055663U (en) | 2019-07-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612049A (en) * | 2020-12-04 | 2021-04-06 | 中广核久源（成都）科技有限公司 | Distance-adjustable vacuum radioactivity detection device and detection method |
| CN113093264A (en) * | 2021-04-08 | 2021-07-09 | 北京大学 | Ion beam detector |
-
2018
- 2018-09-06 CN CN201821457037.7U patent/CN209055663U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112612049A (en) * | 2020-12-04 | 2021-04-06 | 中广核久源（成都）科技有限公司 | Distance-adjustable vacuum radioactivity detection device and detection method |
| CN113093264A (en) * | 2021-04-08 | 2021-07-09 | 北京大学 | Ion beam detector |
| CN113093264B (en) * | 2021-04-08 | 2024-04-30 | 北京大学 | Ion beam detector |
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