CN2578841Y - Radial imaging solid detector - Google Patents
Radial imaging solid detector Download PDFInfo
- Publication number
- CN2578841Y CN2578841Y CN 02286053 CN02286053U CN2578841Y CN 2578841 Y CN2578841 Y CN 2578841Y CN 02286053 CN02286053 CN 02286053 CN 02286053 U CN02286053 U CN 02286053U CN 2578841 Y CN2578841 Y CN 2578841Y
- Authority
- CN
- China
- Prior art keywords
- shell
- lower cover
- photodiode
- housing
- scintillation crystal
- 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 - Lifetime
Links
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 238000003384 imaging method Methods 0.000 title abstract description 6
- 239000013078 crystal Substances 0.000 claims abstract description 19
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052793 cadmium Inorganic materials 0.000 claims description 4
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 claims description 4
- PBYZMCDFOULPGH-UHFFFAOYSA-N tungstate Chemical compound [O-][W]([O-])(=O)=O PBYZMCDFOULPGH-UHFFFAOYSA-N 0.000 claims description 4
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000005855 radiation Effects 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005251 gamma ray Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
一种辐射成像的固体探测器，属于辐射检测技术领域。它包括闪烁晶体和与之耦合的光电二极管。其结构特点是闪烁晶体和光电二极管由壳体包容。壳体由外壳和下盖组成，下盖镶接于外壳的下底边并在封口处涂有可避光、防潮的涂料层。壳体内设有胶垫使闪烁晶体紧固在壳体中。壳体的下盖上置有胶垫，所设绝缘子固定在胶垫上并穿过下盖将光电二极管的两极引出。本实用新型与现有技术相比，具有避光、防潮、结构简单、易拆换、维修方便的特点。在使用中由多个固体探测器组成探测器阵列，能彻底排除闪烁光的串扰，增强电磁抗干扰能力，提高成像清晰度。
The invention relates to a radiation imaging solid detector, which belongs to the technical field of radiation detection. It consists of a scintillation crystal and a photodiode coupled to it. Its structural feature is that the scintillation crystal and the photodiode are contained by the casing. The shell is composed of a shell and a lower cover, the lower cover is inlaid on the lower bottom edge of the shell and coated with a light-proof and moisture-proof paint layer on the seal. A rubber pad is provided in the casing to fasten the scintillation crystal in the casing. A rubber pad is arranged on the lower cover of the housing, and the provided insulator is fixed on the rubber pad and passes through the lower cover to lead out the two poles of the photodiode. Compared with the prior art, the utility model has the characteristics of light-proof, moisture-proof, simple structure, easy disassembly and replacement, and convenient maintenance. In use, the detector array is composed of multiple solid detectors, which can completely eliminate the crosstalk of scintillation light, enhance the electromagnetic anti-interference ability, and improve the imaging clarity.
Description
Technical field
The utility model relates to a kind of X, gamma-radiation imaging array solid sniffer, belongs to radiation detection
Technical field.
Background technology
In the prior art, Chinese patent 95219469.4 discloses a kind of spread pen formula radiant image gas detection apparatus, though this patented technology has possessed detection efficiency, sensitivity is better, the advantage of anti-irradiation, autocollimation long working life, but it is big that its shortcoming is a volume, detector is installed needs big space, and detection efficiency is still not ideal enough.For this reason, in order to reduce the volume of detector, improve Effect on Detecting.Chinese patent 01259228.5 discloses a kind of cobalt 60 gamma ray source-cesium iodides or cadmium tungstate detector container check system, and wherein employed detector is the solid probe of crystal and photodiode coupling.Adopt the reflection white glues to isolate in the mode of solidifying crystal and photodiode, and this isolation method exist this detector can not solve lucifuge and protection against the tide fully and crosstalk, and the relatively poor shortcoming of vibration-isolating effect.And the solid detector array that German Heyman company, Finland DT company etc. make, be to adopt to form a fundamental measurement unit by a plurality of scintillation crystals, the shortcoming that this measuring unit exists is that passage of scintillation light is crosstalked greatly, the maintenance cost height promptly bad one the tunnel will be changed whole detector array.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the purpose of this utility model provides a kind of radiant image solid probe, be arranged in detector array with it, not only volume is little, and can solve lucifuge, protection against the tide, vibrationproof, the problem easily of installation and maintenance is thoroughly got rid of crosstalking of passage of scintillation light, improves the sharpness of imaging.
In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes as follows:
A kind of solid probe of radiant image, it comprises scintillation crystal that is formed by cesium iodide or cadmium tungstate and the photodiode that is coupled with it.Its design feature is: described scintillation crystal and photodiode are contained by housing.Described housing is made up of shell and lower cover, but lower cover is spliced in the bottom of shell and scribble lucifuge, moistureproof dope layer at sealing part.Be provided with rubber cushion in the housing scintillation crystal is fastened in the housing, following the covering of housing is equipped with rubber cushion, and set insulator is fixed on the rubber cushion and passes lower cover the two poles of the earth of photodiode are drawn.
According to above-mentioned technical scheme, the shell of described housing and the form of splicing of lower cover are that the inwall of shell is the plane, and the lower cover punching press has protuberance, and the bottom nozzle of protuberance and shell coincide and embeds, and leave around the protuberance to hide the baseplane sealing of limit with shell.
According to above-mentioned technical scheme, be provided with photoconduction between described scintillation crystal and the photodiode.Described outer casing inner wall is pasted with lead flake.Described housing adopts the brass material of nickel plating to make.The utility model owing to adopt is contained scintillation crystal and the photodiode that is coupled with it by shell, and scribbles dope layer at the sealing part of shell, and is provided with rubber cushion in housing.Therefore, the utlity model has lucifuge, protection against the tide, vibrationproof, characteristics that volume is little.In use, form detector array by a plurality of detectors and can thoroughly get rid of crosstalking of passage of scintillation light, strengthen the electromagnetism antijamming capability, improve the sharpness of imaging.During maintenance, can be changed, need not be destroyed a fundamental measurement unit single detector.Make and check that fault is very convenient, greatly reduce maintenance cost.
Description of drawings
Fig. 1 is a structural profile synoptic diagram of the present utility model;
Fig. 2 is the side cutaway view on the figure;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 is user mode figure of the present utility model.
Below in conjunction with the drawings and the specific embodiments the utility model is described further.
Embodiment
Referring to Fig. 1～Fig. 3, the utility model solid probe comprises scintillation crystal 5 that is formed by cesium iodide or cadmium tungstate and the photodiode 4 that is coupled with it.When the size of scintillation crystal 5 and photodiode 4 misfitted, between can be provided with photoconduction 9.Described scintillation crystal 5, photodiode 4 or comprise that the housing that photoconduction 9 is made by the brass material of nickel plating contains.Housing is made up of shell 1 and lower cover 7.The inwall of shell 1 is the plane, and lower cover 7 punching presses have protuberance 10, and the bottom nozzle of protuberance 10 and shell 1 coincide and embeds, and leaves around the protuberance 10 and hides the baseplane sealing of limit 11 with shell 1, but and scribble lucifuge, moistureproof dope layer at sealing part.Being provided with rubber cushion 6 and lead flake 8 in the housing makes scintillation crystal 5 comprise that photoconduction 9 is fastened in the housing.Be equipped with rubber cushion 3 on the lower cover 7 of housing, set insulator 2 is fixed on the rubber cushion 3 and passes lower cover 7 the two poles of the earth of photodiode 4 are drawn.
Referring to Fig. 4, when using the utility model, a plurality of solid probes are arranged in parallel or fan-shaped array is installed on the printing board PCB, pcb board is provided with the connection and the bias voltage of detector, certainly also biasing not, the angle that makes incident ray and fixed detector can reduce like this and crosstalk near 0 degree.
According to the solid probe that technique scheme is implemented, experimental results show that in the variation of environment temperature 40%～95% relative humidity of 0-40 ℃ of process, find no light leak, deliquescence phenomenon.
Claims (4)
1. the solid probe of a radiant image, it comprises the scintillation crystal (5) that formed by cesium iodide or cadmium tungstate and the photodiode (4) of coupling with it, it is characterized in that: described scintillation crystal (5) and photodiode (4) are contained by housing; Described housing is made up of shell (1) and lower cover (7), lower cover (7) splice in shell (1) but the bottom and scribble lucifuge, moistureproof dope layer at sealing part, being provided with rubber cushion (6) in the housing is fastened in the housing scintillation crystal (5), be equipped with rubber cushion (3) on the lower cover of housing (7), set insulator (2) is fixed on rubber cushion (3) and goes up and pass lower cover (7) the two poles of the earth of photodiode (4) are drawn.
2. according to the described solid probe of claim 1, it is characterized in that be provided with photoconduction (9) between described scintillation crystal (5) and the photodiode (4), shell (1) inwall is pasted with lead flake (8).
3. according to claim 1 or 2 described solid probes, it is characterized in that: the form of splicing of shell of described housing (1) and lower cover (7) is that the inwall of shell (1) is the plane, lower cover (7) punching press has protuberance (10), protuberance (10) embeds with the bottom nozzle of shell (1) is identical, and protuberance (10) leaves on every side and hides the baseplane sealing of limit (11) with shell (1).
4. according to the described solid probe of claim 3, it is characterized in that: described housing adopts the brass material of nickel plating to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286053 CN2578841Y (en) | 2002-11-15 | 2002-11-15 | Radial imaging solid detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02286053 CN2578841Y (en) | 2002-11-15 | 2002-11-15 | Radial imaging solid detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578841Y true CN2578841Y (en) | 2003-10-08 |
Family
ID=33746878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02286053 Expired - Lifetime CN2578841Y (en) | 2002-11-15 | 2002-11-15 | Radial imaging solid detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578841Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328596C (en) * | 2003-11-18 | 2007-07-25 | 中国科学院紫金山天文台 | Method and apparatus for testing flash detector probe |
| CN100445734C (en) * | 2004-09-14 | 2008-12-24 | 清华大学 | A Radiation Imaging Array Solid Detector |
| CN1959388B (en) * | 2005-11-03 | 2010-05-05 | 清华大学 | Solid detector array architecture in use for radiation imaging system |
| CN102073058A (en) * | 2009-11-19 | 2011-05-25 | 株式会社东芝 | Gamma ray detection module with variable light guide thickness |
| CN103344983A (en) * | 2013-06-19 | 2013-10-09 | 田志恒 | System and method for monitoring leakage of nuclear reactor steam generator |
-
2002
- 2002-11-15 CN CN 02286053 patent/CN2578841Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328596C (en) * | 2003-11-18 | 2007-07-25 | 中国科学院紫金山天文台 | Method and apparatus for testing flash detector probe |
| CN100445734C (en) * | 2004-09-14 | 2008-12-24 | 清华大学 | A Radiation Imaging Array Solid Detector |
| CN1959388B (en) * | 2005-11-03 | 2010-05-05 | 清华大学 | Solid detector array architecture in use for radiation imaging system |
| CN102073058A (en) * | 2009-11-19 | 2011-05-25 | 株式会社东芝 | Gamma ray detection module with variable light guide thickness |
| CN102073058B (en) * | 2009-11-19 | 2013-12-18 | 株式会社东芝 | Gamma ray detection module with variable light guide thickness |
| CN103344983A (en) * | 2013-06-19 | 2013-10-09 | 田志恒 | System and method for monitoring leakage of nuclear reactor steam generator |
| CN103344983B (en) * | 2013-06-19 | 2015-11-25 | 田志恒 | nuclear reactor steam generator leakage monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: 2907, TOWER A, QINGHUATONGFANGKEJI PLAZA, BEIJING Free format text: FORMER NAME OR ADDRESS: 2670 MAILBOX, BEIJING CITY 100084 |
|
| CP03 | Change of name, title or address |
Patentee address after: 100083 Beijing Tsinghua Tongfang science and Technology Square A block 2907 Patentee address before: 100084 mailbox 2670, Beijing City |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20051019 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20051019 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |