CN206133022U - Collect device of plastic scintillator fluorescence photon - Google Patents
Collect device of plastic scintillator fluorescence photon Download PDFInfo
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- CN206133022U CN206133022U CN201621133619.0U CN201621133619U CN206133022U CN 206133022 U CN206133022 U CN 206133022U CN 201621133619 U CN201621133619 U CN 201621133619U CN 206133022 U CN206133022 U CN 206133022U
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- cavity
- fixed
- bonnet
- cable interface
- handle
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Abstract
The utility model provides a collect device of plastic scintillator fluorescence photon, belongs to nuclear radiation detector technical field. Technical scheme comprises cavity, photomultiplier, plastic scintillator etc, the kneck at the cavity is fixed to the front end of handle, plastic scintillator, align in proper order and supremely fix on the cavity terminal surface under and around membrane frame, frame, guard net, outline, the photomultiplier top is connected with operational amplifier circuit through linking up the ring, cover after operational amplifier circuit is located and be fixed, photomultiplier, operational amplifier circuit and hou gai lie in the cavity of cavity handle, and the end at the handle is fixed to the back lid, the central point that cable interface is located the back lid puts to through cable interface and back lid fixed connection, cable interface's inner end and operational amplifier circuit's interface connection, the other end is connected with external host computer. The utility model has the advantages of area increase, light, the portable of quality, each item measured data is up to standard, the photon collection efficiency high.
Description
Technical field
This utility model belongs to nuclear radiation detector technical field, and in particular to a kind of to collect plastic scintillant fluorescent photon
Device.
Background technology
Current nuclear power is developed rapidly at home reaches advanced world standards, and this has promoted sending out for nuclear instrument field significantly
Exhibition.Nuclear radiation detector field is still leading with external instrument at this stage, but with the development need of nuclear power, domestic radioprotective
The market share that detector occupies will be increasing.
Currently used for the fluorescent photon that collection plastic scintillant in the nuclear radiation measurement instrument of α, β Measurement of surface contamination sends
Mostly use photoconduction transmission or adopt the photomultiplier tube direct-coupled method suitable with Plastic scintillation bulk area.
But, transmit the method high cost of fluorescent photon with photoconduction, made by nuclear radiation detector volume it is big, weight is big,
Very big inconvenience is caused in use；And method efficiency that plastic scintillant is coupled with photomultiplier tube is very high, but due to photoelectricity
Multiplier tube limited area, so the nuclear radiation detector area produced is all smaller, in actual measurement, purposes is limited.
Utility model content
The purpose of this utility model be to solve that the photoconduction transmission method volume that above-mentioned prior art is present is big, weight is big, into
This height and the little shortcoming of direct coupling method detector area, and a kind of device for collecting plastic scintillant fluorescent photon is provided.
For achieving the above object, the technical scheme adopted by this utility model is：It is a kind of to collect plastic scintillant fluorescence light
The device of son, wherein：By scribble the cavity of nanometer reflection layer, photomultiplier tube, plastic scintillant, around film frame, frame, protection
Net, outer rim, operational amplification circuit, hollow handle, cable interface, bonnet, connector loop, fixed screw composition；The handle
Front end is fixed on the seam of the cavity for scribbling nanometer reflection layer by fixed screw；The plastic scintillant, around film frame, side
Frame, catch net, outer rim are alignd successively and are fixed on the cavity end face that scribbles nanometer reflection layer from top to down by fixed screw
On；The photomultiplier tube top is connected with operational amplification circuit by connector loop；The operational amplification circuit is covered after being located at
And fixed by fixed screw；The photomultiplier tube, operational amplification circuit and bonnet are located in the cavity of hollow handle, and after
Lid is fixed on the end of handle by fixed screw；The cable interface is located at the center of bonnet, and is connect by cable
Mouth is carried screw and is fixedly connected with bonnet；The inner end of the cable interface is connected with the interface of operational amplification circuit, the other end with
External main frame connection, for reading the data of operational amplification circuit.
Compared with prior art, this utility model device has advantages below：First, area effectively increases, and quality is notable
Mitigate, while effectively reducing cost of manufacture, light weight (depending on concrete quality is according to detector area) is easy to carry, it is every to survey
Amount data can reach the requirement of IEC61098 international standards.Second, be coated with the cavity through calculating it is special unrestrained anti-
Material is penetrated, in the case of making photon reduce energy loss as far as possible, greatly improves photon collection efficiency.3rd, it is anti-using cavity
Structure is penetrated, detection area can effectively be increased to 100cm2And 170cm2。
Description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is appearance structure schematic diagram of the present utility model.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the side view of Fig. 3.
Specific embodiment
As shown in Figures 1 to 5, a kind of device for collecting plastic scintillant fluorescent photon described in the present embodiment, wherein：By applying
Have the cavity 1 of nanometer reflection layer, photomultiplier tube 2, plastic scintillant 3, around film frame 4, frame 5, catch net 6, outer rim 7, fortune
Calculate amplifying circuit 8, hollow handle 9, cable interface 10, bonnet 11, connector loop 12, fixed screw 13 to constitute；Before the handle 9
End is fixed on the seam of the cavity 1 for scribbling nanometer reflection layer by fixed screw 13；The plastic scintillant 3, around film frame 4,
Frame 5, catch net 6, outer rim 7 are alignd successively and are fixed on the chamber for scribbling nanometer reflection layer by fixed screw 13 from top to down
On 1 end face of body；2 top of the photomultiplier tube is connected with operational amplification circuit 8 by connector loop 12；The operational amplification circuit
8 are located on bonnet 11 and are fixed by fixed screw 13；During the photomultiplier tube 2, operational amplification circuit 8 and bonnet 11 are located at
In the cavity of empty-handed handle 9, and bonnet 11 is fixed on the end of handle 9 by fixed screw 13；After the cable interface 10 is located at
The center of lid 11, and screw is carried by cable interface 10 be fixedly connected with bonnet 11；In the cable interface 10
End is connected with the interface of operational amplification circuit 8, and the other end is connected with external main frame, for reading the number of operational amplification circuit 8
According to.
Operation principle of the present utility model：Fluorescent photon, fluorescence are sent after α or β rays are injected into plastic scintillant 3
Photon passes through diffuse-reflectance phenomenon in the cavity 1 for scribble nanometer reflection layer by photon collection in photomultiplier tube 2, by photoelectricity times
Increase pipe 2 and convert optical signals to the signal of telecommunication, be sent to operational amplification circuit 8 and after signal amplifies, processes, by cable interface
10 deliver to main frame reads corresponding counting；Around film frame 4 be by Aluminium film paste on aluminum frame, it is therefore an objective to prevent natural light or ambient light
The photon in source is entered in reflection cavity, while the effect in reflecting layer is also acted as, the fluorescent photon in reflection chamber.Paste on frame 5
Have foam its effect be compress around film frame 4 and plastic scintillant 3, it is ensured that in cavity be closing state.Protection grid 6 and outside
Frame 7 is to protect to prevent breakage around film frame 4, strengthens the practicality of detector.
Claims (1)
1. a kind of device for collecting plastic scintillant fluorescent photon, is characterized in that：By the cavity (1), the light that scribble nanometer reflection layer
Electric multiplier tube (2), plastic scintillant (3), around film frame (4), frame (5), catch net (6), outer rim (7), operational amplification circuit
(8), hollow handle (9), cable interface (10), bonnet (11), connector loop (12), fixed screw (13) composition；The handle (9)
Front end the seam of the cavity (1) for scribbling nanometer reflection layer is fixed on by fixed screw (13)；The plastic scintillant
(3), alignd around film frame (4), frame (5), catch net (6), outer rim (7) successively and solid by fixed screw (13) from top to down
It is scheduled on cavity (1) end face for scribbling nanometer reflection layer；Put with computing by connector loop (12) on photomultiplier tube (2) top
Big circuit (8) connection；The operational amplification circuit (8) is on bonnet (11) and fixed by fixed screw (13)；The light
Electric multiplier tube (2), operational amplification circuit (8) and bonnet (11) are in the cavity of hollow handle (9), and bonnet (11) is by solid
Determine the end that screw (13) is fixed on handle (9)；The cable interface (10) is positioned at the center of bonnet (11), and passes through
Cable interface (10) is carried screw and is fixedly connected with bonnet (11)；The inner end of the cable interface (10) and operational amplification circuit
(8) interface connection, the other end is connected with external main frame, for reading the data of operational amplification circuit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133619.0U CN206133022U (en) | 2016-10-18 | 2016-10-18 | Collect device of plastic scintillator fluorescence photon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133619.0U CN206133022U (en) | 2016-10-18 | 2016-10-18 | Collect device of plastic scintillator fluorescence photon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206133022U true CN206133022U (en) | 2017-04-26 |
Family
ID=58573943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621133619.0U Active CN206133022U (en) | 2016-10-18 | 2016-10-18 | Collect device of plastic scintillator fluorescence photon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206133022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249272A (en) * | 2016-10-18 | 2016-12-21 | 山西中辐核仪器有限责任公司 | A kind of device collecting plastic scintillant fluorescent photon |
-
2016
- 2016-10-18 CN CN201621133619.0U patent/CN206133022U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249272A (en) * | 2016-10-18 | 2016-12-21 | 山西中辐核仪器有限责任公司 | A kind of device collecting plastic scintillant fluorescent photon |
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