CN205749921U - Gamma spectrometer - Google Patents
Gamma spectrometer Download PDFInfo
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- CN205749921U CN205749921U CN201620416440.XU CN201620416440U CN205749921U CN 205749921 U CN205749921 U CN 205749921U CN 201620416440 U CN201620416440 U CN 201620416440U CN 205749921 U CN205749921 U CN 205749921U
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- additional mask
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- support beam
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Abstract
nullThis utility model provides a kind of gamma spectrometer，It includes probe body、Shielding body and analyzer，Probe body includes the photomultiplier tube array protected shell and be sequentially placed along the incident direction of gamma ray in protection shell、Optical fiber array、Scintillation crystal array，The outfan of scintillation crystal array is connected with analyzer，Shielding body includes basic shield and multiple additional mask body，Basic shield and multiple additional mask body are constituted by arched girder and the support beam connecting arched girder both sides，The bottom of support beam relative to two inside be provided with prominent auxiliary assembly parts，The end of auxiliary assembly parts is provided with upwardly extending stop part，Auxiliary assembly parts and stop part constitute assembly cavity，The size of multiple additional mask bodies is compared basic shield and is diminished successively，The thickness of multiple additional mask bodies is compared basic shield and is become big successively，And be installed in assembly cavity bottom the support beam of each additional mask body.Can be readily transported and move.
Description
Technical field
This utility model relates to gamma detection technique field, particularly relates to a kind of gamma spectrometer.
Background technology
Carrying out relatively low level of activity's gamma-ray spectrometry analysis, energy disperse spectroscopy and analysans are required to be placed in gal
In agate ray shielding device, to reduce the impact of surrounding gamma ray, screening arrangement is generally adopted
Using vitriol chamber shield, vitriol chamber shield weight and volume is the biggest, when Environmental emergency monitoring, and fortune
Defeated, mobile the most very inconvenient.
Utility model content
This utility model is mainly solving the technical problems that provide a kind of gamma spectrometer, it is possible to be easy to
Transport and mobile, the demand of emergency monitoring or field monitoring can be met.
For solving above-mentioned technical problem, the technical scheme that this utility model uses is: provide one
Planting gamma spectrometer, including probe body, shielding body and analyzer, described probe body includes
Protection shell and the light being sequentially placed along the incident direction of gamma ray in described protection shell
Electricity multiplier tube array, optical fiber array, scintillation crystal array, the outfan of described scintillation crystal array
Being connected with analyzer, described shielding body is close to described photomultiplier tube array and arranges, described shielding
Mechanism includes basic shield and multiple additional mask body, described basic shield and the plurality of attached
Add the shield support beam composition by arched girder and the described arched girder both sides of connection, in described support
The bottom of beam relative to two inside be provided with prominent auxiliary assembly parts, the end of described auxiliary assembly parts sets
Upwardly extending stop part, described auxiliary assembly parts and described stop part is had to constitute assembly cavity, described
The size of multiple additional mask bodies is compared described basic shield and is diminished successively, the plurality of additional screen
Cover the thickness of body to compare described basic shield and become big successively, and each described additional mask body
It is installed in described assembly cavity bottom support beam.
Preferably, the area of the exit end of described photomultiplier tube array is less than the face of incidence end
Long-pending.
Being different from the situation of prior art, the beneficial effects of the utility model are: additional by using
Shield and basic shield are combined into a shield, can measure the core that thickness is different, energy
Enough it is readily transported and moves, the demand of emergency monitoring or field monitoring can be met.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment gamma spectrometer.
Fig. 2 is the structural representation of the shielding body of this utility model embodiment gamma spectrometer.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, in this utility model embodiment
Technical scheme is clearly and completely described, it is clear that described embodiment is only that this practicality is new
A part of embodiment of type rather than whole embodiments.Based on the embodiment in this utility model,
It is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of this utility model protection.
See Fig. 1, be the structural representation of this utility model embodiment gamma spectrometer.This enforcement
The gamma spectrometer of example includes probe body 1, shielding body 2 and analyzer 3, probe body 1
It is sequentially placed including protection shell 11 and in protection shell 11 along the incident direction of gamma ray
Photomultiplier tube array 12, optical fiber array 13, scintillation crystal array 14, scintillation crystal array
The outfan of 14 is connected with analyzer 3, and shielding body 2 is close to photomultiplier tube array 12 and arranges,
Shielding body 2 includes basic shield 21 and multiple additional mask body 22, basic shield 21 He
Multiple additional mask bodies 22 are by arched girder 201 and the support beam 202 of connection arched girder 201 both sides
Constitute, the bottom of support beam 202 relative to two inside be provided with prominent auxiliary assembly parts 203, auxiliary
The end helping assembly parts 203 is provided with upwardly extending stop part 204, assists assembly parts 203 and stops
Block piece 204 constitutes assembly cavity, and the size of multiple additional mask bodies 22 is compared basic shield 21 and depended on
Secondary diminishing, the thickness of multiple additional mask bodies 22 is compared basic shield 21 and is become successively greatly, and often
It is installed in assembly cavity bottom the support beam 202 of one additional mask body 22.
When measuring gamma ray, gamma ray is converted into visible ray by photomultiplier tube array 12,
Optical fiber array 13 plays the effect of direct light, and visible ray is converted into the signal of telecommunication by scintillation crystal array 14,
Analyzer 3 signal of telecommunication received is processed after output spectrum information.
Before carrying out core gamma scan detection, determine the diameter of surveyed core, according to core
Diameter determines the quantity installing additional mask layer 22 additional.After quantification, by additional mask layer
The size of 22 sizes is sequentially arranged in assembly cavity from big to small, owing to shielding body 2 uses combination
The shield of formula, thus weight and volume can be controlled.Further, diameter is the least
Core is more easily subject to the interference of the gamma ray in external environment, and multiple additional mask layer 22
Width become big successively, the core that diameter is the least can be played the biggest shielding action.
By the way, the gamma spectrometer of this utility model embodiment is by using additional mask
Body and basic shield are combined into a shield, can measure the core that thickness is different, it is possible to just
In transporting and mobile, the demand of emergency monitoring or field monitoring can be met.
The foregoing is only embodiment of the present utility model, not thereby limit of the present utility model specially
Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence
Flow process converts, or is directly or indirectly used in other relevant technical fields, is the most in like manner included in this
In the scope of patent protection of utility model.
Claims (2)
1. a gamma spectrometer, it is characterised in that include probe body, shielding body and analysis
Device, described probe body include protect shell and in described protection shell entering along gamma ray
Penetrate photomultiplier tube array that direction is sequentially placed, optical fiber array, scintillation crystal array, described sudden strain of a muscle
The outfan of bright crystal array is connected with analyzer, and described shielding body is close to described photomultiplier tube
Array is arranged, and described shielding body includes basic shield and multiple additional mask body, described substantially
Shield and the plurality of additional mask body by arched girder and connect propping up of described arched girder both sides
Support beam constitute, the bottom of described support beam relative to two inside be provided with prominent auxiliary assembly parts, institute
The end stating auxiliary assembly parts is provided with upwardly extending stop part, described auxiliary assembly parts and described only
Block piece constitutes assembly cavity, and the size of the plurality of additional mask body compares described basic shield successively
Diminishing, the thickness of the plurality of additional mask body is compared described basic shield and is become big successively, and often
It is installed in described assembly cavity bottom the support beam of additional mask body described in.
Gamma spectrometer the most according to claim 1, it is characterised in that described photomultiplier transit
The area of the exit end of pipe array is less than the area of incidence end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416440.XU CN205749921U (en) | 2016-05-10 | 2016-05-10 | Gamma spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620416440.XU CN205749921U (en) | 2016-05-10 | 2016-05-10 | Gamma spectrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205749921U true CN205749921U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620416440.XU Active CN205749921U (en) | 2016-05-10 | 2016-05-10 | Gamma spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205749921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728193A (en) * | 2017-10-10 | 2018-02-23 | 成都理工大学 | A kind of gamma spectrometer |
-
2016
- 2016-05-10 CN CN201620416440.XU patent/CN205749921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107728193A (en) * | 2017-10-10 | 2018-02-23 | 成都理工大学 | A kind of gamma spectrometer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |