CN205719859U - Nuclear density meter NaI crystal and photomultiplier tube fixed guide set - Google Patents
Nuclear density meter NaI crystal and photomultiplier tube fixed guide set Download PDFInfo
- Publication number
- CN205719859U CN205719859U CN201620609986.7U CN201620609986U CN205719859U CN 205719859 U CN205719859 U CN 205719859U CN 201620609986 U CN201620609986 U CN 201620609986U CN 205719859 U CN205719859 U CN 205719859U
- Authority
- CN
- China
- Prior art keywords
- annular
- photomultiplier tube
- nai crystal
- annular sleeve
- fixed guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
This utility model relates to Nuclear Instrument technical field, is specifically related to a kind of nuclear density meter NaI crystal and photomultiplier tube fixed guide set.It includes first annular set and the second annular sleeve, and the inner diameter of described first annular set is suitable with the diameter of NaI crystal, and described first annular set is set in the described NaI crystal outside near the end of photomultiplier tube；The inner diameter of described second annular sleeve is suitable with the diameter of photomultiplier tube, and described second annular sleeve is set in the described photomultiplier tube outside near the end of NaI crystal；Described first annular set is structure as a whole with described second annular sleeve, and the axis of described first annular set and described second annular sleeve coincides.The design of this utility model structure is simple, and simple installation is quick, and be beneficial to increase NaI crystal and photomultiplier tube couples stability.
Description
Technical field
This utility model relates to Nuclear Instrument technical field, is specifically related to a kind of nuclear density meter NaI crystal and photomultiplier tube
Fixed guide set.
Background technology
More crucial any is transmitted for signal in nuclear density meter, it is simply that the coupling between receiving device and amplifying device
Close.If the coupling between this is the best, it is fatal for the accuracy measured.But during coupling, if do not entered
Fixing of both positions of row, then be unable to reach required coupling demand.So in order to preferably couple, needing before coupling
Both couplings are positioned.
It would therefore be desirable to a kind of locating guide device of design, to reach required coupling demand.
Utility model content
Technical problem to be solved in the utility model is to provide that the design of a kind of structure is simple, simple installation is quick, is beneficial to
Increase nuclear density meter NaI crystal and the photomultiplier tube fixed guide set of coupling stability.
For realizing above-mentioned technical purpose, the technical scheme that this utility model employing is following:
Nuclear density meter NaI crystal and photomultiplier tube fixed guide set, including:
First annular set, the inner diameter of described first annular set is suitable with the diameter of NaI crystal, described first annular
It is set in the described NaI crystal outside near the end of photomultiplier tube；
Second annular sleeve, the inner diameter of described second annular sleeve is suitable with the diameter of photomultiplier tube, and described second
Annular sleeve is set in the described photomultiplier tube outside near the end of NaI crystal；
Described first annular set is structure as a whole with described second annular sleeve, and described first annular set and described second ring
The axis of shape set coincides.
As one of them preferred technical scheme, described first annular set and described second annular sleeve are in the axial direction
Length is identical, it is simple to processing and fabricating.
As another preferred technical scheme, described first annular set length in the axial direction is more than described second annular
Set length in the axial direction, is beneficial to increase coupling stability.
As preferably, described first annular set is politef set, and described second annular sleeve is also politef set,
Having good electrical insulating property, can resist 1500 volts of impacting with high pressure, high-low temperature resistant, service life is long.
This utility model compared with prior art has the following beneficial effect:
In installation process, between NaI crystal and photomultiplier tube, increase by one be used for limiting consolidating of both degree of freedom
Determining fairlead, the two ends up and down that NaI crystal and photomultiplier tube are separately mounted to fixed guide set realize positioning and guiding effect,
So can be greatly increased the stability of its coupling；Fairlead selects material to be politef, have good electrical insulating property,
Mechanical performance and high and low temperature resistance, the design of its structure is simple, and simple installation is quick.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating this utility model and explaining, not limit model of the present utility model
Enclose.Wherein:
Fig. 1 is the main TV structure schematic diagram of this utility model embodiment；
Fig. 2 is the plan structure schematic diagram of this utility model embodiment；
Fig. 3 be this utility model embodiment assembling structural representation.
In figure: the first annular set of 1-；2-the second annular sleeve；3-NaI crystal；4-photomultiplier tube.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, this utility model is expanded on further.In the following detailed description, only by saying
Bright mode describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art is permissible
Recognize, in the case of without departing from spirit and scope of the present utility model, can be by various different modes to described
Embodiment is modified.Therefore, accompanying drawing and description are inherently protection that is the most illustrative rather than that be used for limiting claim
Scope.
As shown in Figure 1 to Figure 3, nuclear density meter NaI crystal and photomultiplier tube fixed guide set, including:
First annular set 1, the inner diameter of described first annular set 1 is suitable with the diameter of NaI crystal 3, and described first
Annular sleeve 1 is set in the described NaI crystal 3 outside near the end of photomultiplier tube 4；
Second annular sleeve 2, the inner diameter of described second annular sleeve 2 is suitable with the diameter of photomultiplier tube 4, and described
Second ring set 2 is set in the described photomultiplier tube 4 outside near the end of NaI crystal 3；
Described first annular set 1 is structure as a whole with described second annular sleeve 2, and described first annular set 1 and described the
The axis of second ring set 2 coincides, and is coaxial sleeve.
Convenient for processing and fabricating, described first annular set 1 is identical with described second annular sleeve 2 length in the axial direction.
Certainly, reliable in order to connect guiding, increase the stability of coupling, described first annular set 1 length in the axial direction is the biggest
In described second annular sleeve 2 length in the axial direction.
Wherein, described first annular set and the second annular sleeve are politef set, can be integrally machined molding, machinery
Good toughness, has good electrical insulating property, can resist 1500 volts of impacting with high pressure, and high-low temperature resistant, and service life is long.
During installation, the two ends up and down that NaI crystal 3 and photomultiplier tube 4 are separately mounted to fixed guide set realize location
Guide effect, so can be greatly increased the stability of its coupling, and structure design is simple, and simple installation is quick.
The foregoing is only the schematic detailed description of the invention of this utility model, be not limited to model of the present utility model
Enclose.Any those skilled in the art, equivalent done on the premise of without departing from design of the present utility model and principle
Change and amendment, all should belong to the scope of this utility model protection.
Claims (5)
1. nuclear density meter NaI crystal and photomultiplier tube fixed guide set, it is characterised in that including:
First annular set (1), the inner diameter of described first annular set (1) is suitable with the diameter of NaI crystal (3), and described
One annular sleeve (1) is set in the described NaI crystal (3) outside near the end of photomultiplier tube (4)；
Second annular sleeve (2), the inner diameter of described second annular sleeve (2) is suitable with the diameter of photomultiplier tube (4), described
Second annular sleeve (2) is set in the described photomultiplier tube (4) outside near the end of NaI crystal (3)；
Described first annular set (1) is structure as a whole with described second annular sleeve (2), and described first annular set (1) is with described
The axis of the second annular sleeve (2) coincides.
2. nuclear density meter NaI crystal as claimed in claim 1 and photomultiplier tube fixed guide set, it is characterised in that: described
First annular set (1) is identical with described second annular sleeve (2) length in the axial direction.
3. nuclear density meter NaI crystal as claimed in claim 1 and photomultiplier tube fixed guide set, it is characterised in that: described
First annular set (1) length in the axial direction is more than described second annular sleeve (2) length in the axial direction.
4. the nuclear density meter NaI crystal as described in any one of claims 1 to 3 and photomultiplier tube fixed guide set, its feature
It is: described first annular set (1) is politef set.
5. nuclear density meter NaI crystal as claimed in claim 4 and photomultiplier tube fixed guide set, it is characterised in that: described
Second annular sleeve (2) is also politef set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609986.7U CN205719859U (en) | 2016-06-20 | 2016-06-20 | Nuclear density meter NaI crystal and photomultiplier tube fixed guide set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609986.7U CN205719859U (en) | 2016-06-20 | 2016-06-20 | Nuclear density meter NaI crystal and photomultiplier tube fixed guide set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205719859U true CN205719859U (en) | 2016-11-23 |
Family
ID=57316802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609986.7U Expired - Fee Related CN205719859U (en) | 2016-06-20 | 2016-06-20 | Nuclear density meter NaI crystal and photomultiplier tube fixed guide set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205719859U (en) |
-
2016
- 2016-06-20 CN CN201620609986.7U patent/CN205719859U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 211100, No. 391 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Patentee after: Nanjing Yugong Intelligent Technology Co., Ltd Address before: Dong Qi Road in Jiangning District of Nanjing City, Jiangsu Province, No. 33 B block 211100 Patentee before: Nnajing Zhongniu Technology Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20210620 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |