CN208044077U - It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector - Google Patents
It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector Download PDFInfo
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- CN208044077U CN208044077U CN201820468284.0U CN201820468284U CN208044077U CN 208044077 U CN208044077 U CN 208044077U CN 201820468284 U CN201820468284 U CN 201820468284U CN 208044077 U CN208044077 U CN 208044077U
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- light guide
- modeling
- probe body
- photomultiplier
- signal processing
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Abstract
It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector, belong to nuclear radiation detector field.Solution plastic scintillant is low to α, β surface contamination efficiency, measures the small problem of area.Including detector head cover, aviation plug, probe body, light guide and mould sudden strain of a muscle, photomultiplier, photomultiplier transit tube socket etc.；The light guide dodges the center for being fixed on probe body cavity with modeling；The photomultiplier transit tube socket is welded on multicore signal wire on signal processing circuit board；The bottom end of the photomultiplier is inserted on photomultiplier transit tube socket, and the top of photomultiplier is adhesive in the side that light guide is dodged with modeling by optics；The signal processing circuit board is located in the inner bottom surface of probe body；The positioning column is screwed on probe body, and feet is fixed on the top of positioning column；The film frame is provided on the plane of incidence at the top of probe body；Detector head cover is located on film frame.The utility model has many advantages, such as that surface contamination is efficient, and it is big to measure area.
Description
Technical field
The utility model belongs to nuclear radiation detector field, and in particular to a kind of to use Plastic scintillation bulk measurement α, β ray
Detector.
Background technology
Now with greatly developing for China's core industry, radiation protection embodies increasingly consequence.Plastic scintillation
Body is the solid solution of organic scitillating material in the plastic, belongs to organic scintillator.It can be used for α, β, γ, etc. rays detection.
It can be easily made the variously-shaped transparent body, have do not deliquesce, performance stabilization, radiation hardness, scintillation decay time it is short low with price
The advantages that honest and clean is current using a kind of very wide scintillator.
Utility model content
The purpose of this utility model is low to α, β surface contamination efficiency to solve plastic scintillant, measures that area is small asks
Topic provides a kind of using Plastic scintillation bulk measurement α, Beta-ray detector.
To achieve the above object, technical solution adopted in the utility model is：It is a kind of to use Plastic scintillation bulk measurement α, β
The detector of ray, wherein：By detector head cover, fixed screw, aviation plug, multicore signal wire, probe body, light guide with
Mould sudden strain of a muscle, photomultiplier, photomultiplier transit tube socket, signal processing circuit board, film frame, feet, positioning column composition；Outside detector
The positioning foam that two same thickness are posted in the inner bottom surface of shell is equipped with one layer of aluminium in the light guide and the outer surface that modeling is dodged
Foil, and the measuring surface on its top is reserved, the light guide dodges the center for being fixed on probe body cavity with modeling；The photoelectricity
Multiplication tube socket is welded on multicore signal wire on signal processing circuit board, and multicore signal wire passes through and is fixed on probe body
On aviation plug digital signal is sent to the signal processing circuit portion point of outside；The bottom end of the photomultiplier is inserted in photoelectricity
Double on tube socket, the top of photomultiplier is adhesive in the side that light guide is dodged with modeling by optics；The signal processing circuit
Plate is located in the inner bottom surface of probe body, and felt pad is lined with below signal processing circuit board；The positioning column
By being screwed on probe body from strap bolt, feet is screwed in the top of positioning column, and by adjusting positioning column
Length fix light guide with modeling dodge upper and lower directions；The film frame is provided on the plane of incidence at the top of probe body, makes it
It covers light guide to dodge with modeling, aluminium film is posted on film frame；The detector head cover is located on film frame and is fixed by fixed screw.
Further preferred scheme posts the foam of 1-2mm thickness at the back side of the head cover.
The utility model is transmitted and is collected photon using light guide, and it is few that photon transmits energy loss in light guide, therefore efficiency
It is very high.Since light has extraordinary efficiency of transmission in light guide, detector area is very big.Detector output is number letter
Number, facilitate follow-up signal to handle.The utility model can be applicable in the equipment of various surface contamination detections, using wide model, simultaneously
The area that detector can be suitably adjusted according to the equipment of application and requirement, achievees the purpose that measurement.Parameters reach simultaneously
IEC61098 international standards.
The utility model can make different shape and be set with adapting to different use conditions, can be applied to more surface contaminations
It is standby.Detector signal output is digital signal, can access master system, adapts to various equipment.
Description of the drawings
Fig. 1 is the internal structure schematic diagram of the utility model；
Fig. 2 is the exterior view of Fig. 1；
Fig. 3 is the side view of Fig. 1.
Specific implementation mode
It is as shown in Figure 1 to Figure 3, a kind of described in the present embodiment to use Plastic scintillation bulk measurement α, Beta-ray detector,
In：7, photoelectricity is dodged by detector head cover 1, fixed screw 2, aviation plug 3, multicore signal wire 4, probe body 5, light guide and modeling
Multiplier tube 8, photomultiplier transit tube socket 9, signal processing circuit board 10, film frame 11, feet 13, positioning column 14 form；In detector
The positioning foam 6 that two same thickness are posted in the inner bottom surface of shell 5 is equipped with one in the light guide and the outer surface of modeling sudden strain of a muscle 7
Layer aluminium foil, and the measuring surface on its top is reserved, the light guide dodges 7 centers for being fixed on 5 cavity of probe body with modeling；Institute
It states photomultiplier transit tube socket 9 to be welded on signal processing circuit board 10 with multicore signal wire 4, and multicore signal wire 4 is passed through and fixed
Aviation plug 3 on probe body 5 send digital signal to the signal processing circuit portion point of outside；The photomultiplier
8 bottom end is inserted on photomultiplier transit tube socket 9, and the top of photomultiplier 8 is adhesive in the side of light guide and modeling sudden strain of a muscle 7 by optics
Face；The signal processing circuit board 10 is located in the inner bottom surface of probe body 5, and under signal processing circuit board 10
Face is lined with felt pad 12, plays insulating effect；The positioning column 14 from strap bolt by being screwed on probe body 5, feet 13
It is screwed in the top of positioning column 14, and fixes the upper and lower of light guide and modeling sudden strain of a muscle 7 by adjusting the length of positioning column 14
To；The film frame 11 is provided on the plane of incidence at 5 top of probe body, so that it is covered light guide and is dodged 7 with modeling, on film frame 11
Post aluminium film；The detector head cover 1 is located on film frame 11 and is fixed by fixed screw 2, ensures that light guide dodges 7 sealing with modeling
Property.
The foam of 1-2mm thickness is posted in this implementation at the back side of the head cover 1.
The utility model can be applicable on fixed large scale equipment, also can be used alone, and can be made not according to use environment
Similar shape and size.α, β ray are injected into the detector plane of incidence, and detector can send out fluorescent photon.Fluorescent photon is passed by light guide
After defeated, collection, the photon being collected into is amplified by photomultiplier, is input in signal processing circuit, in signal processing electricity
In road after amplification, examination, monostable circuit, it is directly output as digital signal.
The operating process of the utility model：First modeling is dodged and is wrapped with aluminium foil with light guide 7, its face upward is exposed.Then
The positioning foam cushion 6 of included gum is pasted onto to the corresponding position of probe body 5, light guide is dodged 7 with modeling is fixed on detector
The center of 5 cavity of shell.Photomultiplier transit tube socket 9 is welded on multicore signal wire 4 on signal processing circuit board 10, photoelectricity
Multiplier tube 8 is inserted on photomultiplier transit tube socket 9, and multicore signal wire 4 passes through the aviation plug 3 being fixed on probe body 5 will
Digital signal is sent to the signal processing circuit portion point of outside.The lining of felt pad 12 is in signal processing circuit board 10 in the following, playing insulation
Effect.Photomultiplier 8 is adhesive in light guide by optics and is dodged on 7 with modeling.Positioning column 14 from strap bolt by being screwed in outside detector
On shell 5, feet 13 is screwed on positioning column 14.Light guide and modeling are dodged about 7 by adjusting the length of positioning column 14
Direction is fixed.It is attached to the back side of head cover 1 with the foam of 2mm thickness, foam is cut according to the shape of head cover 1 along side.Aluminium film is used
Solid gum is attached on film frame 11, is placed on the plane of incidence of probe body 5, and light guide is dodged 7 with modeling to be covered, then by detector
Head cover 1 is placed on film frame 11 to be fixed with fixed screw 2, ensures that light guide dodges 7 leakproofness with modeling.
Claims (2)
1. it is a kind of using Plastic scintillation bulk measurement α, Beta-ray detector, it is characterized in that：By detector head cover (1), fixed screw
(2), (7), photomultiplier (8), photoelectricity are dodged in aviation plug (3), multicore signal wire (4), probe body (5), light guide and modeling
Double tube socket (9), signal processing circuit board (10), film frame (11), feet (13), positioning column (14) composition；Outside detector
The positioning foam (6) that two same thickness are posted in the inner bottom surface of shell (5) is set in the light guide and the outer surface of modeling sudden strain of a muscle (7)
There is one layer of aluminium foil, and reserve the measuring surface on its top, the light guide dodges (7) with modeling and is fixed in probe body (5) cavity
Heart position；The photomultiplier transit tube socket (9) is welded on multicore signal wire (4) on signal processing circuit board (10), and multicore
Signal wire (4) passes through the aviation plug (3) being fixed on probe body (5) to send digital signal to the signal processing electricity of outside
Road part；The bottom end of the photomultiplier (8) is inserted on photomultiplier transit tube socket (9), and the top of photomultiplier (8) passes through
Optics is adhesive in the side that light guide dodges (7) with modeling；The signal processing circuit board (10) is located at the inner bottom of probe body (5)
On face, and it is lined with felt pad (12) below signal processing circuit board (10), plays insulating effect；The positioning column (14)
By being screwed on probe body (5) from strap bolt, feet (13) is screwed in the top of positioning column (14), and passes through
The length for adjusting positioning column (14) fixes the upper and lower directions that light guide dodges (7) with modeling；The film frame (11) is provided at outside detector
On the plane of incidence at the top of shell (5), so that it is covered light guide and dodge (7) with modeling, aluminium film is posted on film frame (11)；The detector head cover
(1) it is located on film frame (11) and is fixed by fixed screw (2), ensures that light guide dodges the leakproofness of (7) with modeling.
2. it is according to claim 1 a kind of using Plastic scintillation bulk measurement α, Beta-ray detector, it is characterized in that：Institute
Post the foam of 1-2mm thickness in the back side for stating head cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820468284.0U CN208044077U (en) | 2018-04-03 | 2018-04-03 | It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820468284.0U CN208044077U (en) | 2018-04-03 | 2018-04-03 | It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector |
Publications (1)
| Publication Number | Publication Date |
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| CN208044077U true CN208044077U (en) | 2018-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820468284.0U Active CN208044077U (en) | 2018-04-03 | 2018-04-03 | It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459341A (en) * | 2018-04-03 | 2018-08-28 | 山西中辐核仪器有限责任公司 | It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector |
-
2018
- 2018-04-03 CN CN201820468284.0U patent/CN208044077U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459341A (en) * | 2018-04-03 | 2018-08-28 | 山西中辐核仪器有限责任公司 | It is a kind of to use Plastic scintillation bulk measurement α, Beta-ray detector |
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