CN206364014U - Radiation detector package - Google Patents
Radiation detector package Download PDFInfo
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- CN206364014U CN206364014U CN201621467397.6U CN201621467397U CN206364014U CN 206364014 U CN206364014 U CN 206364014U CN 201621467397 U CN201621467397 U CN 201621467397U CN 206364014 U CN206364014 U CN 206364014U
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Abstract
The utility model proposes a kind of radiation detector package, it includes a matrix and outer package layer, and wherein described matrix includes scintillator, light-sensitive device and interior encapsulated layer：Scintillator two ends have the plane of incidence and exiting surface respectively, and the outer peripheral face of the plane of incidence and scintillator is provided with reflecting layer；Light-sensitive device includes photosurface and package casing, and the photosurface is coupled with the exiting surface by optical cement；Interior encapsulated layer is bonded in the outer surface in the reflecting layer and the coupling part of scintillator and optics described in sealed envelope, and outer package layer chemical deposition is in outer surface of matrix.The utility model radiation detector package, extend the path length needed for water diffusion to the coupling part of light-sensitive device and exiting surface, the problem of preventing optical cement and the device isolation that hydrone is caused, improves reliability and service life of the radiation detector package under the conditions of hot and humid environment.
Description
Technical field
The utility model is related to a kind of radiation detector package with scintillator.
Background technology
In current various types of radiation detector, scintillator solid probe is to be widely used and type that demand is big, tool
There are volume compact, the features such as detection efficient is high.In scintillator solid probe, by scintillator (cesium iodide, cadmium tungstate etc.) and
The detector assembly of light-sensitive device (photodiode, photomultiplier etc.) composition is its core component, is also influence detector
The topmost part of performance indications；In general, the detection principle of scintillator detector is to absorb incident penetrate by scintillator
Heat input, and the energy is converted into the passage of scintillation light of equal proportion (spectral region is typically in near-infrared between near ultraviolet band)；Flicker
Light is absorbed by light-sensitive device and is converted to electric signal, and the reading circuit that the signal is transmitted to detector is further processed.
Typical detector assembly is to be formed by scintillator and light-sensitive device by optical cement coupling at present, the position of coupling
Between the exiting surface of scintillator and the photosurface of light-sensitive device；Optical cement have higher light refractive index, can reduce from
Scintillator between light-sensitive device in light path refractive index change, and then improve passage of scintillation light efficiency of transmission；In addition, optical cement is also
With certain adhesion strength and hardness, can fix scintillator and light-sensitive device makes both relative positions not change.
(- 25 DEG C to 40 DEG C of temperature, humidity 0% to 60%), detector assembly in the working environment of most of detector
Performance it is stable；But in hot and humid working environment (more than temperature 70 C, humidity more than 80%), it can be observed to visit
Surveying the sensitivity (topmost performance indications) of device assembly can over time increase and gradually reduce, and its reason is hot and humid
Under environment, the hydrone density in air is big and has compared with kinetic energy, the optics colloid between infiltration scintillator and light-sensitive device
Adhesive surface is reached, reduces the adhesion strength between colloid and device, and then make colloid and device isolation；Colloid after separation and
The larger light path of variations in refractive index is formed between device, causing the efficiency of transmission of passage of scintillation light reduces.
Above- mentioned information is only used for strengthening the understanding to background of the present utility model disclosed in the background section, because
This it can include not constituting the information to prior art known to persons of ordinary skill in the art.
Utility model content
One of the present utility model aims to overcome that above-mentioned the deficiencies in the prior art can be hot and humid there is provided one kind
The radiation detector package worked in environment.
Another purpose of the present utility model is the manufacture method for providing radiation detector package.
Additional aspect and advantage of the present utility model will be set forth in part in the description, and partly will be from retouching
It is apparent from stating, or can the acquistion by practice of the present utility model.
According to one side of the present utility model, a kind of radiation detector package, including a matrix and chemical deposition in
The outer package layer of described matrix outer surface, wherein described matrix include flicker, light-sensitive device and interior encapsulated layer：Scintillator two ends point
Not Ju You the plane of incidence and exiting surface, the outer peripheral face of the plane of incidence and scintillator is provided with reflecting layer；Light-sensitive device includes light
Quick face and package casing, the photosurface are coupled with the exiting surface by optical cement；Interior encapsulated layer is bonded in the reflection
The outer surface of layer and the coupling part of scintillator and optics described in sealed envelope.
According to an embodiment of the present utility model, the interior encapsulated layer includes at least a metallic diaphragm and/or organic matter
Film layer.
According to an embodiment of the present utility model, the thickness of the interior encapsulated layer is less than 0.1 millimeter, and/or described outer
The thickness of encapsulated layer is not less than 10 microns.
According to an embodiment of the present utility model, the outer package layer is the organic film of low pressure chemical deposition.
According to an embodiment of the present utility model, the scintillator is the rectangular cuboid in cross section.
According to an embodiment of the present utility model, the interior encapsulated layer encloses one on the scintillator and protruded from
The cofferdam of the exiting surface, optical cement is located in the cofferdam, and the light-sensitive device is located in optical cement, and the light-sensitive device
Photosurface fitted with exiting surface, the package casing of the horizontal plane of optical cement covering light-sensitive device and with cofferdam top horizontal
Together.
According to other side of the present utility model, a kind of manufacture method of radiation detector package comprises the following steps：
A matrix is formed, wherein the matrix includes scintillator, light-sensitive device and interior encapsulated layer；Scintillator two ends have respectively
The plane of incidence and exiting surface, the outer peripheral face of the plane of incidence and scintillator are provided with reflecting layer；The light-sensitive device dodges with described
The exiting surface of bright body is coupled by optical cement；Interior encapsulated layer, which is bonded in described in the outer surface in the reflecting layer and sealed envelope, to be dodged
The coupling part of bright body and light-sensitive device；
Method one outer package layer of formation for passing through chemical deposition in the outer surface of described matrix.
According to an embodiment of the present utility model, according to an embodiment of the present utility model, the interior encapsulated layer bag
Include at least a metallic diaphragm and/or organic film.
According to an embodiment of the present utility model, when forming described matrix, interior encapsulated layer described first is in the flicker
A cofferdam for protruding from the exiting surface is enclosed on body, it is in upright state then to make the scintillator, so that exiting surface position
In the top of the plane of incidence, optical cement is added in the cofferdam, and the light-sensitive device is inserted in optical cement, makes light-sensitive device
Photosurface fitted with exiting surface, the package casing of the horizontal plane of optical cement covering light-sensitive device and with cofferdam top horizontal
Together.
According to an embodiment of the present utility model, when forming the outer package layer, low pressure is passed through in outer surface of matrix
Be deposited as into organic film.
As shown from the above technical solution, advantage of the present utility model and good effect are：
The utility model radiation detector package, its position being coupled using interior encapsulated layer to light-sensitive device and scintillator
Sealed for the first time, the micro gap of all parts is then further sealed and crammed using outer package layer, moisture can be suppressed
Son extends the path length needed for water diffusion to the coupling part of light-sensitive device and exiting surface in the infiltration of flicker body side surface
Degree, prevents hydrone under high temperature action due to infiltrating into the viscous of scintillator, light-sensitive device and optical cement compared with kinetic energy
The problem of optical cement and device isolation that junction is caused, improve radiation detector package it is hot and humid (it is more than temperature 70 C,
Humidity more than 80%) reliability and service life under environmental condition, it is ensured that radiation detector package can be hot and humid
Environment in long-term reliable and stable work.The thickness of interior encapsulated layer and outer package layer of the present utility model is smaller, hardly increases
Plus the weight of radiation detector package, do not interfere with result of detection yet.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature and advantage of the present utility model will
Become readily apparent from.
Fig. 1 is the structural representation of the detector assembly of the embodiment of the utility model one；
Fig. 2 is the schematic diagram of Fig. 1 scintillator；
Fig. 3 is Fig. 2 right view；
Fig. 4 is schematic diagram when scintillator in Fig. 1 is combined with interior encapsulated layer；
Fig. 5 is the schematic diagram of the matrix in Fig. 1.
In figure：1st, scintillator；2nd, reflecting layer；3rd, the plane of incidence；4th, exiting surface；5th, interior encapsulated layer；6th, optical cement；7th, photosensor
Part；8th, outer package layer；10th, matrix.
Embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that this practicality is new
The design of example embodiment fully and completely, and will comprehensively be conveyed to those skilled in the art by type.Identical in figure
Reference represents same or similar structure, thus will omit their detailed description.
Embodiment one
As shown in Figures 1 to 5, the utility model embodiment discloses a kind of radiation detector package, and the component includes
One matrix 10 and chemical deposition are in the outer package layer 8 on the outer surface of matrix 10.
As shown in Figures 1 to 4, the matrix 10 of present embodiment includes scintillator 1, light-sensitive device 7 and interior encapsulated layer 5.
The scintillator 1 can be the rectangular cuboid in cross section.It is respectively the plane of incidence 3 and exiting surface 4 at the two ends of scintillator 1.Dodging
The plane of incidence of bright body 1 and the outer peripheral face of scintillator 1 are provided with reflecting layer 2.In detection, ray is entered by the plane of incidence 3 to be flashed
In body 1, the light that scintillator 1 is sent by actinism is projected from exiting surface 4.
The exiting surface 4 of light-sensitive device 7 and the scintillator 1 is coupled by optical cement 6.The interior encapsulated layer 5 is bonded in reflection
On the outer surface of layer 2, and it is capable of the coupling part of the sealed envelope scintillator 1 and light-sensitive device 7.The interior encapsulated layer 5 is optional
With the low material of water vapor transmittance to reduce the probability of hydrone infiltration, it includes at least a metallic diaphragm and/or organic matter film
Layer, can select one layer, two layers or even more layers as needed.During from metallic diaphragm, tin film, aluminium film or copper film can be selected
Deng, but be not limited.The thickness of the interior encapsulated layer may be typically less than 0.1 millimeter.
When the interior encapsulated layer 5 is bonded in the outer surface in reflecting layer, can only it be bonded in close to the subregion of exiting surface
On, on the outer surface that whole reflecting layer can also be bonded in.Interior encapsulated layer 5 slightly protrudes above exiting surface 4 and forms an annular
Cofferdam, appropriate optical cement 6 can be instilled after scintillator 1 is erected, in the cofferdam.Light-sensitive device 7 inserts optical cement 6
In, the photosurface of the light-sensitive device 7 is fitted with exiting surface, and the horizontal plane of optical cement 6 covers the package casing of the light-sensitive device simultaneously
It is concordant with the top of cofferdam.Optical cement 6 can fix light-sensitive device 7 and scintillator 1 after solidifying.It should be pointed out that interior encapsulation
Layer 5 is not intended to limit with light-sensitive device 7 with the sequencing that scintillator 1 is connected, and also light-sensitive device 7 first can be coupled in into scintillator 1,
Encapsulated layer 5 in bonding again.
Outer package layer 8 can be the fine and close organic film of low pressure chemical deposition (LPCVD).The thickness of the outer package layer 8
Degree is not less than 10 microns.
Radiation detector package of the present utility model, it is coupled using interior encapsulated layer 5 to light-sensitive device 7 and scintillator 1
Position sealed for the first time, the micro gap of all parts is then further sealed and crammed using outer package layer, can be pressed down
Hydrone processed is in the infiltration of flicker body side surface, needed for extending water diffusion to the coupling part of light-sensitive device and exiting surface
Path length, prevents hydrone under high temperature action due to infiltrating into scintillator, light-sensitive device and optics compared with kinetic energy
The problem of optical cement and device isolation that the bonding plane of glue is caused, radiation detector package is improved in hot and humid (temperature 70
More than DEG C, humidity more than 80%) reliability and service life under environmental condition, it is ensured that radiation detector package can be in height
Long-term reliable and stable work in the environment of warm high humidity.Furthermore, formed and enclosed at exiting surface by using interior encapsulated layer 5
Weir, and using the shell of optical cement covering light-sensitive device, hydrone is also further avoid from the infiltration at light-sensitive device shell,
Further increase reliability.The thickness of interior encapsulated layer and outer package layer of the present utility model is smaller, and interior encapsulated layer thickness is less than
0.1 millimeter, outer package layer thickness is not less than 10 microns, hardly increases the weight of radiation detector package, does not also interfere with spy
Survey result.
Embodiment two
Incorporated by reference to Fig. 1 to Fig. 5, present embodiment discloses the manufacture of the radiation detector package disclosed in embodiment one
Method.The manufacture method comprises the following steps.
A matrix 10 is formed, the matrix 10 includes scintillator 1, light-sensitive device 7 and interior encapsulated layer 5；Distinguish at the two ends of scintillator 1
With the plane of incidence 3 and exiting surface 4, the outer peripheral face of the plane of incidence 3 and scintillator 1 is provided with reflecting layer 2；Light-sensitive device 7 and flicker
The exiting surface 4 of body 1 is coupled by optical cement 6；Interior encapsulated layer 5 is bonded in the outer surface in reflecting layer 2 and sealed envelope scintillator 1
With the coupling part of light-sensitive device 7.
Wherein, interior encapsulated layer 5 can include an at least metallic diaphragm and/organic film.In the present embodiment, formed
During the matrix 10, first as shown in Figures 4 and 5, the interior encapsulated layer 5 encloses one on scintillator 1 and protrudes from exiting surface 4
Cofferdam, it is in upright state then to make the scintillator, so that exiting surface 4 is located at the top of the plane of incidence 3, is added in the cofferdam
Optical cement 6, and light-sensitive device 7 is inserted in optical cement 6, the photosurface of light-sensitive device 7 is fitted with exiting surface 4, optical cement 6
The package casing of horizontal plane covering light-sensitive device 7 is simultaneously concordant with the top of cofferdam.
Pass through method one outer package layer 8 of formation of chemical deposition again in the outer surface of matrix 10.Forming the outer package layer 8
When, it is to be not less than 10 microns of organic film for one layer of fine and close thickness by low pressure chemical deposition in the outer surface of matrix.
During chemical deposition, the signaling interface of the light-sensitive device 7 can implement appropriate safeguard measure, it is to avoid organic film is blocked
Signaling interface.
Illustrative embodiments of the present utility model are particularly shown and described above.It should be understood that the utility model
Disclosed embodiment is not limited to, on the contrary, the utility model is intended to cover included in spirit and scope of the appended claims
Interior various modifications and equivalent arrangements.
Claims (6)
1. a kind of radiation detector package, it is characterised in that including a matrix and outer package layer, described matrix includes：
Scintillator, two ends have the plane of incidence and exiting surface respectively, and the outer peripheral face of the plane of incidence and scintillator is provided with reflection
Layer；
Light-sensitive device, including photosurface and package casing, the photosurface are coupled with the exiting surface by optical cement；
Interior encapsulated layer, is bonded in the outer surface in the reflecting layer and the coupling part of scintillator and light-sensitive device described in sealed envelope
Position；
The outer package layer chemical deposition is in described matrix outer surface.
2. radiation detector package according to claim 1, it is characterised in that the interior encapsulated layer includes an at least metal
Film layer and/or organic film.
3. radiation detector package according to claim 1, it is characterised in that the thickness of the interior encapsulated layer is less than 0.1
Millimeter, and/or the thickness of the outer package layer are not less than 10 microns.
4. radiation detector package according to claim 1, it is characterised in that the outer package layer is low pressure chemical deposition
Organic film.
5. radiation detector package according to claim 1, it is characterised in that the scintillator is that cross section is rectangular
Cuboid.
6. according to any described radiation detector package in claim 1 to 5, it is characterised in that the interior encapsulated layer is in institute
State and a cofferdam for protruding from the exiting surface is enclosed on scintillator, optical cement is located in the cofferdam, the light-sensitive device
In optical cement, and the photosurface of the light-sensitive device is fitted with exiting surface, the horizontal plane covering photosensor of the optical cement
The package casing of part is simultaneously concordant with the top of cofferdam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467397.6U CN206364014U (en) | 2016-12-29 | 2016-12-29 | Radiation detector package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621467397.6U CN206364014U (en) | 2016-12-29 | 2016-12-29 | Radiation detector package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206364014U true CN206364014U (en) | 2017-07-28 |
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ID=59377110
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621467397.6U Active CN206364014U (en) | 2016-12-29 | 2016-12-29 | Radiation detector package |
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| CN (1) | CN206364014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653778A (en) * | 2016-12-29 | 2017-05-10 | 同方威视技术股份有限公司 | Radiation detector assembly and manufacturing method thereof |
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2016
- 2016-12-29 CN CN201621467397.6U patent/CN206364014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653778A (en) * | 2016-12-29 | 2017-05-10 | 同方威视技术股份有限公司 | Radiation detector assembly and manufacturing method thereof |
| CN106653778B (en) * | 2016-12-29 | 2024-03-01 | 同方威视技术股份有限公司 | Radiation detector assembly and method of manufacturing the same |
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