CN108303725A - A kind of sealing clamp of scintillation detector - Google Patents
A kind of sealing clamp of scintillation detector Download PDFInfo
- Publication number
- CN108303725A CN108303725A CN201711226273.8A CN201711226273A CN108303725A CN 108303725 A CN108303725 A CN 108303725A CN 201711226273 A CN201711226273 A CN 201711226273A CN 108303725 A CN108303725 A CN 108303725A
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- China
- Prior art keywords
- external member
- scintillator
- extension
- arm
- scintillation detector
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The present invention proposes a kind of sealing clamp of scintillation detector, including external member, spring, flexible adjustment piece and expanding mechanism, it is internally provided with spring and flexible adjustment piece in external member, flexible adjustment piece is L-shaped, including the first arm and the second arm, first arm is fixedly connected with one end of spring, second arm covers the first end face of external member, and the length of the second arm is more than the height of end face, and expanding mechanism is used to adjust the relative distance between two the first opposite arms, the both ends of expanding mechanism are fixedly connected with the second arm respectively, and adjusting expanding mechanism can drive flexible adjustment piece movable.The present invention also proposes a kind of scintillation detector.
Description
Technical field
The present invention relates to scintillation detector fields, in particular to a kind of sealing clamp of scintillation detector.
Background technology
Scintillation detector is the relatively conventional a kind of detector in radiation detection field, scintillation detector mainly by scintillator and
Photomultiplier forms.The use of more scintillator is at present sodium iodide and cesium iodide, they are that glass of the density more than 4 is brilliant
Body, photomultiplier is using optical glass shell.Typical scintillator has rectangular shape, and is connected to photomultiplier transit
Pipe, typical scintillation detector use circular photomultiplier.Scintillator and photomultiplier are generally adhered to photoconductive tube
Inner surface.
In normal use, scintillation detector often bears various degrees of impact or vibration.Due to shock and vibration, temperature
Reasons, scintillator and the photomultipliers such as degree variation often detach, and even result in the scintillator and photomultiplier of glass material
It is broken.Accordingly, it is desirable to provide fixture keeps being relatively fixed for scintillator and photomultiplier.
The existing fixture of scintillation detector generally comprises the resilient protection cover that can be stretched on scintillation detector, or only
It is simply to be inserted into metal sleeve with reflecting material cladding scintillator, and grown using bolt punching fixation or both ends
Bar tenses.
Fig. 1 shows the structure chart of the scintillation detector according to the prior art.As shown in Figure 1, the scintillation detector includes
Scintillator 1, scintillator shell 2, external member 3,4 (not shown) of optical conductor, photomultiplier transit tube shell 5 and photomultiplier 6.Optical conductor
4 are located inside external member 3, and 3 one end of external member offers rectangular aperture identical with the cross sectional shape of scintillator 1, and scintillator 1 passes through
Rectangular aperture is inserted into external member 3, and two end faces of external member 3 are provided with screw hole, using bolt by photomultiplier transit tube shell 5 and external member
3 fix.Scintillator 1 is located inside scintillator shell 2, and photomultiplier 6 is located inside photomultiplier transit tube shell 5, the end of the two
Face is contacted with the end face of optical conductor 4, and is bonded by light gel.Several through-holes are offered in the side wall of external member 3, are inserted into tightening
Bolt adjusts tight fixed bolt and fixes scintillator 1.
But the fixed effect of existing fixture is bad, and the less sealing for considering fixture, it is miscellaneous in actual mechanical process
Matter is easily accessible in metal sleeve, and punches the integrality that can lead to tamper detection device, influences the light signal collection of detector,
Bolt fixes tension and also results in scintillator damage, and it is inconvenient and heavier that both ends are assembled with the mode that stock tenses.Therefore,
It needs to design a good sealing clamp for scintillator and photomultiplier.
Invention content
The shortcomings that in order to overcome above-mentioned background technology, a kind of sealing clamp of scintillation detector provided by the invention can be with
It prevents impurity from entering metal sleeve, is conducive to the acquisition of optical signal, there is good fixed effect, and simple in structure, operation
Simplicity, reliability are high.
Goal of the invention to realize the present invention, technical scheme is as follows：
On the one hand, the present invention proposes a kind of sealing clamp of scintillation detector, including external member, spring, flexible adjustment piece and
Expanding mechanism is internally provided with spring and flexible adjustment piece in external member, and flexible adjustment piece is L-shaped, including the first arm and second
Arm, the first arm are fixedly connected with one end of spring, and the second arm covers the first end face of external member, and the length of the second arm is more than end face
Height, expanding mechanism is used to adjust relative distance between two the first opposite arms, and the both ends of expanding mechanism are respectively with the
Two arms are fixedly connected, and adjusting expanding mechanism can drive flexible adjustment piece movable.
On the other hand, the present invention proposes a kind of scintillation detector, including scintillator, scintillator shell, optical conductor, photoelectricity times
Increase tube shell, photomultiplier further includes sealing clamp proposed by the present invention, and optical conductor is located inside external member, and external member one end is opened
Equipped with rectangular aperture identical with the cross sectional shape of scintillator, scintillator is inserted into external member by rectangular aperture.Scintillator, which is located at, to be dodged
Bright body enclosure interior, photomultiplier are located at photomultiplier enclosure interior, and the end face of the two is contacted with the end face of optical conductor, and
It is bonded by light gel.
Wherein, expanding mechanism is arranged in the outside of scintillator shell.
Wherein, the second end face of external member is provided with internal thread trepanning, and one end of photomultiplier transit tube shell is provided with external screw thread,
External member and photomultiplier transit tube shell are connected through a screw thread.
Wherein, there is the first end face of external member 3 extension extension, the second arm of flexible adjustment piece to have chamfering with groove
Portion, after external member and fixed scintillator shell completion, the groove of chamfered section is suitable for accommodating extension extension.
Wherein, the first end face of external member has the first extension extension, has the second extension outer in one end of scintillator shell
Prolong, opens up through-hole in the first extension extension and the second extension extension, opened up in the corresponding position of the second arm of flexible adjustment piece
Extended pattern through-hole is bolted external member and scintillator shell.
Wherein, the material of flexible adjustment piece is silica gel.
The present invention need not fix scintillator and photomultiplier with bolt, and leakproofness is improved using flexible adjustment piece,
The collecting efficiency of optical signal can be effectively improved, there is good fixed effect, and simple in structure, easy to operate, reliability is high,
It can be very good to be applied in scintillation detector.
The detailed description of specific implementation mode by referring to the following drawings and to the present invention, feature and advantage of the invention
It will become apparent.
Description of the drawings
Fig. 1 shows the structure chart of the scintillation detector according to the prior art；
Fig. 2 shows the sectional view of scintillation detector according to the invention；
Fig. 3 shows the details of the sealing clamp of preferred embodiment according to the invention；
Fig. 4 shows the details of the sealing clamp of another preferred embodiment according to the invention.
Specific implementation mode
Embodiments of the present invention provide a kind of sealing clamp of scintillation detector, below in conjunction with the accompanying drawings to the present invention's
Technical solution is described in detail.
Fig. 2 shows the detail of the scintillation detector of the present invention.As shown in Fig. 2, the scintillation detector packet of the present invention
Include scintillator 1, scintillator shell 2, U-shaped external member 3, optical conductor 4, photomultiplier transit tube shell 5 and photomultiplier 6.Optical conductor 4
Inside external member 3,3 one end of external member offers rectangular aperture identical with the cross sectional shape of scintillator 1, and scintillator 1 passes through rectangle
Opening is inserted into external member 3.Scintillator 1 is located inside scintillator shell 2, and photomultiplier 6 is located inside photomultiplier transit tube shell 5,
The end face of the two is contacted with the end face of optical conductor 4, and is bonded by light gel.Above-mentioned setting is same as the prior art.
The sealing clamp of the scintillation detector of the present invention includes external member 3, spring 7, flexible adjustment piece 8 and expanding mechanism 9.
It is internally provided with spring 7 and flexible adjustment piece 8 in external member 3, flexible adjustment piece 8 is L-shaped, including the first arm 81
With the second arm 82, the first arm 81 is fixedly connected with one end of spring 7, and the second arm 82 covers the first end face 31 of external member 3, and second
The length of arm 82 is more than the height of end face 31.
The scintillation detector of the present invention is additionally provided with expanding mechanism 9, and expanding mechanism 9 is for adjusting two the first opposite arms
Relative distance between 81.Specifically, expanding mechanism 9 is arranged at the outside of scintillator shell 2, the both ends point of expanding mechanism 9
It is not fixedly connected with the second arm 82, adjusting expanding mechanism 9 can drive flexible adjustment piece 8 movable.
The second end face 32 of external member 3 is provided with internal thread trepanning, and one end of photomultiplier transit tube shell 5 is provided with external screw thread,
External member 3 and photomultiplier transit tube shell 5 are connected through a screw thread.
Fig. 3 shows a preferred embodiment of the present invention, in the preferred embodiment, the first end face of external member 3
31 there is extension extension 311, the second arm 82 of flexible adjustment piece 8 to have chamfered section 821 with groove.When external member 3 and scintillator
Shell 2 is completed after fixing, and the groove of chamfered section 821 is suitable for accommodating extension extension 311.
Fig. 4 shows another preferred embodiment of the present invention, in another preferred embodiment, the first of external member 3
End face 31 has the first extension extension 311, has the second extension extension 21 in one end of scintillator shell 2, outer in the first extension
Prolong 311 and second extension extension 21 on open up through-hole, open up extended pattern in the corresponding position of the second arm 82 of flexible adjustment piece 8
Through-hole is bolted external member 3 and scintillator shell 2, realizes the sealing of external member 3 and scintillator 1.
The operation principle of the present invention is as follows.Adjusting expanding mechanism 9 can drive flexible adjustment piece 8 movable so that elasticity
Adjustment sheet 8 is formed by enlarged open, or under the elastic force effect of spring 7 so that flexible adjustment piece 8 is formed by opening contracting
It is small, convenient for scintillator 1 to be inserted into external member 3 when enlarged open, make flexible adjustment piece 8 using the elastic force of spring 7 when opening reduces
The first arm 81 push against scintillator 1, realize external member 3 and scintillator 1 fixation.On the other hand, the second arm 82 of flexible adjustment piece 8
Scintillator shell 2 is pushed against the second arm 82, realizes the sealing of external member 3 and scintillator 1 by the first end face 31 for covering external member 3.So
After be connected through a screw thread external member 3 and photomultiplier transit tube shell 5.
The material of flexible adjustment piece is silica gel, and due to the elasticity of silica gel itself, spring will not damage scintillator, and
Sealing can be realized well.
There is the flexible adjustment piece and spring of the present invention damping effect can have when scintillation detector receives external impacts
Effect absorbs external force, keeps the connection of scintillator and photomultiplier more firm.The flexible adjustment piece of the present invention can also be realized simultaneously
Sealing between external member and scintillator shell.
The present invention is connected through a screw thread external member and photomultiplier transit tube shell, can be to avoid the trepanning in external member, to ensure
The integrality of scintillation detector, improves the collecting efficiency of optical signal.
Described above be only it is illustrative, and it is to be understood that it is described herein arrangement and details modification and
Variation will be apparent to those skilled in the art, any under the premise of no inventive concept for being detached from the present invention
It is obvious to replace within the scope of the present invention.It is therefore intended that only by scope of the appended claims rather than by
The specific detail that is presented by way of above description and explanation limits.
Claims (7)
1. a kind of sealing clamp of scintillation detector, which is characterized in that including external member 3, spring 7, flexible adjustment piece 8 and dilator
Structure 9,
It is internally provided with spring 7 and flexible adjustment piece 8 in external member 3,
Flexible adjustment piece 8 is L-shaped, including the first arm 81 and the second arm 82, the first arm 81 are fixedly connected with one end of spring 7, the
Two arms 82 cover the first end face 31 of external member 3, and the length of the second arm 82 is more than the height of end face 31,
Expanding mechanism 9 is used to adjust relative distance between two the first opposite arms 81, and the both ends of expanding mechanism 9 are respectively with the
Two arms 82 are fixedly connected, and adjusting expanding mechanism 9 can drive flexible adjustment piece 8 movable.
2. a kind of scintillation detector, including scintillator 1, scintillator shell 2, optical conductor 4, photomultiplier transit tube shell 5, photomultiplier transit
Pipe 6, which is characterized in that further include sealing clamp described in claim 1, optical conductor 4 is located inside external member 3, and 3 one end of external member is opened
Equipped with rectangular aperture identical with the cross sectional shape of scintillator 1, scintillator 1 is inserted into external member 3 by rectangular aperture.Scintillator 1
Inside scintillator shell 2, photomultiplier 6 is located inside photomultiplier transit tube shell 5, the end of the end face and optical conductor 4 of the two
Face contacts, and is bonded by light gel.
3. scintillation detector as claimed in claim 2, wherein expanding mechanism 9 is arranged in the outside of scintillator shell 2.
4. scintillation detector as claimed in claim 2, wherein the second end face 32 of external member 3 is provided with internal thread trepanning, photoelectricity
One end of multiplication tube shell 5 is provided with external screw thread, and external member 3 and photomultiplier transit tube shell 5 are connected through a screw thread.
5. scintillation detector as claimed in claim 2, wherein the first end face 31 of external member 3 has extension extension 311, elasticity
Second arm 82 of adjustment sheet 8 has chamfered section 821 with groove, after external member 3 and the fixed completion of scintillator shell 2, chamfered section
821 groove is suitable for accommodating extension extension 311.
6. scintillation detector as claimed in claim 2, wherein the first end face 31 of external member 3 has the first extension extension 311,
There is the second extension extension 21 in one end of scintillator shell 2, extend in the first extension extension 311 and second and opened up in extension 21
Through-hole opens up extended pattern through-hole in the corresponding position of the second arm 82 of flexible adjustment piece 8, is bolted external member 3 and flicker
Body shell body 2.
7. scintillation detector as claimed in claim 2, wherein the material of flexible adjustment piece 8 is silica gel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711226273.8A CN108303725B (en) | 2017-11-29 | 2017-11-29 | A kind of scintillation detector and its sealing clamp |
| PCT/CN2018/079008 WO2019104902A1 (en) | 2017-11-29 | 2018-03-14 | Sealing clamp for scintillation detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711226273.8A CN108303725B (en) | 2017-11-29 | 2017-11-29 | A kind of scintillation detector and its sealing clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108303725A true CN108303725A (en) | 2018-07-20 |
| CN108303725B CN108303725B (en) | 2019-08-30 |
Family
ID=62869772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711226273.8A Active CN108303725B (en) | 2017-11-29 | 2017-11-29 | A kind of scintillation detector and its sealing clamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108303725B (en) |
| WO (1) | WO2019104902A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019104903A1 (en) * | 2017-11-29 | 2019-06-06 | 苏州绿磁精密仪器有限公司 | Assembly method for scintillation detector |
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| CN1657973A (en) * | 2004-02-19 | 2005-08-24 | 通用电气公司 | Ruggedized scintillation detector for portal monitors and light pipe incorporated therein |
| CN102495422A (en) * | 2011-12-05 | 2012-06-13 | 北京大学 | Connection and protection device for photo-multiplier tube detector |
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| US20140084162A1 (en) * | 2009-12-31 | 2014-03-27 | Saint-Gobain Ceramics & Plastics, Inc. | Detector assembly for a scintillation article |
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| JPH04363700A (en) * | 1990-08-01 | 1992-12-16 | Canon Inc | X-ray transmitting window and fixing method thereof |
| US7820974B2 (en) * | 2008-04-18 | 2010-10-26 | Saint-Gobain Ceramics & Plastics, Inc. | Scintillation detector and method of making |
| CN201754188U (en) * | 2010-02-03 | 2011-03-02 | 中国原子能科学研究院 | Fixing device for photomultiplier tube of plastic scintillator detector |
| CN102110575B (en) * | 2011-02-23 | 2012-07-04 | 公安部第三研究所 | Photomultiplier installation protection structure |
| CN105353403A (en) * | 2015-11-26 | 2016-02-24 | 天华化工机械及自动化研究设计院有限公司 | Fixing device for scintillator and multiplier tube of isotope gauge |
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2017
- 2017-11-29 CN CN201711226273.8A patent/CN108303725B/en active Active
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2018
- 2018-03-14 WO PCT/CN2018/079008 patent/WO2019104902A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1657973A (en) * | 2004-02-19 | 2005-08-24 | 通用电气公司 | Ruggedized scintillation detector for portal monitors and light pipe incorporated therein |
| US20140084162A1 (en) * | 2009-12-31 | 2014-03-27 | Saint-Gobain Ceramics & Plastics, Inc. | Detector assembly for a scintillation article |
| CN102495422A (en) * | 2011-12-05 | 2012-06-13 | 北京大学 | Connection and protection device for photo-multiplier tube detector |
| CN203084242U (en) * | 2013-02-01 | 2013-07-24 | 奥立通讯设备（深圳）有限公司 | Waterproof optical fiber connector |
| CN204436964U (en) * | 2014-11-25 | 2015-07-01 | 南京金创有色金属科技发展有限公司 | A kind of Simple fixing device of acoustic emission testing instrument probe |
| CN205958759U (en) * | 2016-06-17 | 2017-02-15 | 北京玻璃研究院 | Shock -resistant scintillating crystals detector of preventing moisture absorption |
| CN206546148U (en) * | 2017-03-21 | 2017-10-10 | 福建浩蓝光电有限公司 | A kind of device vision lenses interferometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019104903A1 (en) * | 2017-11-29 | 2019-06-06 | 苏州绿磁精密仪器有限公司 | Assembly method for scintillation detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108303725B (en) | 2019-08-30 |
| WO2019104902A1 (en) | 2019-06-06 |
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