CN220357823U - Cesium iodide scintillation screen - Google Patents
Cesium iodide scintillation screen Download PDFInfo
- Publication number
- CN220357823U CN220357823U CN202322100263.7U CN202322100263U CN220357823U CN 220357823 U CN220357823 U CN 220357823U CN 202322100263 U CN202322100263 U CN 202322100263U CN 220357823 U CN220357823 U CN 220357823U
- Authority
- CN
- China
- Prior art keywords
- cesium iodide
- layer
- modified polyolefin
- glass substrate
- electromagnetic shielding
- 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.)
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- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 title claims abstract description 61
- 239000010410 layer Substances 0.000 claims abstract description 61
- 229920000098 polyolefin Polymers 0.000 claims abstract description 30
- 238000005538 encapsulation Methods 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 16
- 239000012790 adhesive layer Substances 0.000 claims abstract description 11
- 239000011241 protective layer Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 239000002390 adhesive tape Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000000565 sealant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000505673 Scintilla Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009206 nuclear medicine Methods 0.000 description 1
- 230000005658 nuclear physics Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
Abstract
The utility model discloses a cesium iodide scintillation screen, which belongs to the technical field of radiation detection flat plates and comprises a transparent glass substrate, wherein a cesium iodide scintillator layer is arranged on the surface of the transparent glass substrate, a cesium iodide encapsulation modified polyolefin layer is covered on the surface of the cesium iodide scintillator layer, the edge of the cesium iodide encapsulation modified polyolefin layer is tightly attached to the peripheral plate surface part of the cesium iodide scintillator layer on the transparent glass substrate, an electromagnetic shielding and shading moisture-proof layer is covered on the surface of the cesium iodide encapsulation modified polyolefin layer, a PET protective layer is covered on the surface of the electromagnetic shielding and shading moisture-proof layer, and the PET protective layer is connected with the electromagnetic shielding and shading moisture-proof layer through an adhesive layer. The cesium iodide encapsulation modified polyolefin layer can be tightly attached to the transparent glass substrate during encapsulation, so that the process of sealing the periphery of the cesium iodide scintillator layer by using a butyl adhesive tape is omitted, the working efficiency of production and manufacture is improved, and the manufacturing cost is reduced.
Description
Technical Field
The utility model relates to the technical field of radiation detection flat plates, in particular to a cesium iodide scintillation screen.
Background
Inorganic scintillators (inorganic scintilla tor) play a very important role in radiation detection and are widely applied to the fields of imaging nuclear medicine, nuclear physics, high-energy physics, industrial CT, oil well exploration, safety inspection and the like. The most studied and used are inorganic scintillators, and among them cesium iodide scintillators with high brightness and high resolution are most widely used. However, cesium iodide is a hygroscopic material, and when it absorbs moisture in the air and deliquesces, the characteristics of the scintillator, particularly the resolution of the image, are greatly reduced, so how to effectively encapsulate the scintillator is more important. And the packaging process of different substrates is different.
Patent application publication number CN103646683 a discloses a cesium iodide scintillation screen structure comprising: the waterproof film adhesive tape comprises a transparent substrate, a cesium iodide scintillator layer deposited on the transparent substrate, a waterproof film adhesive tape pressed on the upper surface of the cesium iodide scintillator layer and a protective cover plate fixed above the waterproof film adhesive tape, wherein sealant is arranged at the peripheral edge of the cesium iodide scintillator layer, the lower surface of the sealant is attached to the transparent substrate, and the upper surface of the sealant is attached to the waterproof film adhesive tape.
According to the technical scheme, the sealant is arranged at the peripheral edge of the cesium iodide scintillator layer, so that the problem of poor water-proof effect of cesium iodide materials is solved, however, in actual production and processing, a sealant arranging process is added, the production efficiency is affected, and the cost of sealant arrangement is increased.
Disclosure of Invention
The utility model aims to provide a cesium iodide scintillation screen, which has the advantages of simplifying production procedures, reducing manufacturing cost and improving sealing performance of a cesium iodide scintillator layer.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a cesium iodide scintillation screen, includes transparent glass substrate, is equipped with cesium iodide scintillator layer on the surface of transparent glass substrate, covers on cesium iodide scintillator layer's surface has cesium iodide encapsulation modified polyolefin layer, cesium iodide encapsulation modified polyolefin layer's edge is closely laminated with the peripheral face part of cesium iodide scintillator layer on the transparent glass substrate, covers on cesium iodide encapsulation modified polyolefin layer's surface has electromagnetic shield shading dampproof course, electromagnetic shield shading dampproof course's surface cover has the PET inoxidizing coating, connect through the adhesive layer between PET inoxidizing coating and the electromagnetic shield shading dampproof course.
Further, the cesium iodide encapsulation modified polyolefin layer adopts a modified polyolefin material between transparent and semitransparent.
Further, the cesium iodide encapsulation modified polyolefin layer has a thickness of 25 to 300 μm.
Further, the thickness of the electromagnetic shielding shading moisture-proof layer is 6-100 mu m, and the used material is aluminum foil.
Further, the thickness of the PET protective layer is 25-125 mu m.
Further, the thickness of the adhesive layer is 3-6 μm.
Further, the adhesive layer is made of composite adhesive.
The utility model has the beneficial effects that:
according to the utility model, the cesium iodide encapsulation modified polyolefin layer is made of modified Polyolefin (POE) material, the POE has good function of blocking water vapor and oxygen, and can be integrally and tightly attached to the transparent glass substrate during encapsulation, so that the sealing effect is particularly good, the process of resealing the periphery of the cesium iodide scintillator layer by using a butyl tape can be completely omitted, the simplified production process not only improves the production and manufacturing working efficiency, but also reduces the manufacturing cost.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one skilled in the art without inventive effort from the following figures:
fig. 1 is a schematic structural view of the present utility model.
In the figure: 1. a transparent glass substrate; 2. a cesium iodide scintillator layer; 3. cesium iodide encapsulation modified polyolefin layers; 4. an electromagnetic shielding shading moisture-proof layer; 5. an adhesive layer; 6. PET protective layer.
Detailed Description
In order to better understand the technical solutions of the present utility model, the following description will be made in detail with reference to the accompanying drawings and specific embodiments, and it should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper surface", "lower surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "forward rotation", "reverse", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
As shown in fig. 1, the cesium iodide scintillation screen comprises a transparent glass substrate 1, wherein a cesium iodide scintillator layer 2 is arranged on the surface of the transparent glass substrate 1, a cesium iodide encapsulation modified polyolefin layer 3 is covered on the surface of the cesium iodide scintillator layer 2, the edge of the cesium iodide encapsulation modified polyolefin layer 3 is tightly attached to the peripheral plate surface part of the cesium iodide scintillator layer 2 on the transparent glass substrate 1, an electromagnetic shielding light-shielding moisture-proof layer 4 is covered on the surface of the cesium iodide encapsulation modified polyolefin layer 3, a PET protective layer 6 is covered on the surface of the electromagnetic shielding light-proof layer 4, and the PET protective layer 6 is connected with the electromagnetic shielding light-proof moisture-proof layer 4 through an adhesive layer 5. The cesium iodide encapsulation modified polyolefin layer 3 is made of transparent to semitransparent modified Polyolefin (POE) materials, the POE has good function of blocking water vapor and oxygen, and can be integrally and tightly attached to a transparent glass substrate during encapsulation, the sealing effect is particularly good, the process of resealing the periphery of the cesium iodide scintillator layer by using a butyl tape can be completely omitted, and the simplified production process not only improves the production and manufacturing working efficiency, but also reduces the manufacturing cost.
The thickness of the cesium iodide encapsulation modified polyolefin layer is 25-300 mu m. Too thin a thickness of cesium iodide encapsulation modified polyolefin layer may result in insufficient tackiness, while too thick a thickness may result in higher overall stiffness.
The thickness of the electromagnetic shielding shading moisture-proof layer is 6-100 mu m, and the used material is aluminum foil. If the thickness of the electromagnetic shielding shading moisture-proof layer is smaller than 6 mu m, the electromagnetic shielding shading moisture-proof function and shading moisture-proof function are affected, and the service life of the electromagnetic shielding shading moisture-proof layer is reduced; if the thickness of the electromagnetic shielding shading moisture-proof layer is more than 100 mu m, the overall hardness of the film can be increased, and the flexibility of the film is reduced, so that the film is easy to damage in use.
The thickness of the PET protective layer is 25-125 mu m. The protective cover is used for protecting the electromagnetic shielding shading moisture-proof layer and plays a role in protecting the electromagnetic shielding shading moisture-proof layer from being scratched.
The thickness of the adhesive layer is 3-6 mu m, and the adhesive layer is made of composite adhesive.
Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction. While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (7)
1. The cesium iodide scintillation screen comprises a transparent glass substrate and is characterized in that: the surface of the transparent glass substrate is provided with a cesium iodide scintillator layer, the surface of the cesium iodide scintillator layer is covered with a cesium iodide encapsulation modified polyolefin layer, the edge of the cesium iodide encapsulation modified polyolefin layer is tightly attached to the peripheral plate surface part of the cesium iodide scintillator layer on the transparent glass substrate, the surface of the cesium iodide encapsulation modified polyolefin layer is covered with an electromagnetic shielding shading moisture-proof layer, the surface of the electromagnetic shielding shading moisture-proof layer is covered with a PET protective layer, and the PET protective layer is connected with the electromagnetic shielding shading moisture-proof layer through an adhesive layer.
2. The cesium iodide scintillation screen of claim 1, wherein: the cesium iodide encapsulation modified polyolefin layer adopts a modified polyolefin material between transparent and semitransparent.
3. The cesium iodide scintillation screen of claim 1, wherein: the thickness of the cesium iodide encapsulation modified polyolefin layer is 25-300 mu m.
4. The cesium iodide scintillation screen of claim 1, wherein: the thickness of the electromagnetic shielding shading moisture-proof layer is 6-100 mu m, and the used material is aluminum foil.
5. The cesium iodide scintillation screen of claim 1, wherein: the thickness of the PET protective layer is 25-125 mu m.
6. The cesium iodide scintillation screen of claim 1, wherein: the thickness of the adhesive layer is 3-6 mu m.
7. The cesium iodide scintillation screen of claim 1, wherein: the adhesive layer is made of composite adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100263.7U CN220357823U (en) | 2023-08-07 | 2023-08-07 | Cesium iodide scintillation screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322100263.7U CN220357823U (en) | 2023-08-07 | 2023-08-07 | Cesium iodide scintillation screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220357823U true CN220357823U (en) | 2024-01-16 |
Family
ID=89479374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322100263.7U Active CN220357823U (en) | 2023-08-07 | 2023-08-07 | Cesium iodide scintillation screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220357823U (en) |
-
2023
- 2023-08-07 CN CN202322100263.7U patent/CN220357823U/en active Active
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