CN106950587A - A kind of scintillation crystal detectors with effective light guide - Google Patents
A kind of scintillation crystal detectors with effective light guide Download PDFInfo
- Publication number
- CN106950587A CN106950587A CN201710346671.7A CN201710346671A CN106950587A CN 106950587 A CN106950587 A CN 106950587A CN 201710346671 A CN201710346671 A CN 201710346671A CN 106950587 A CN106950587 A CN 106950587A
- Authority
- CN
- China
- Prior art keywords
- scintillation crystal
- light guide
- array
- crystal array
- upper strata
- 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.)
- Pending
Links
Classifications
-
- 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
- G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- 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)
- Nuclear Medicine (AREA)
Abstract
The invention discloses a kind of scintillation crystal detectors with effective light guide, including circuit board, it is characterized in that, the top of circuit board is provided with photodetector array, the top of photodetector array is provided with light guide, the top of light guide is provided with lower floor's scintillation crystal array, and the top of lower floor's scintillation crystal array is provided with upper strata scintillation crystal array.Which solves the spatial resolution of existing scintillation crystal detectors system determined by the size of single scintillation crystal unit.The scintillation crystal unit of this small size limits the design of scintillation crystal unit one spot detector of adhesion.Because the size of photodetector can not be processed into too small, other system also needs to substantial amounts of reading passage, the useful detection area of photodetector array is less than whole detector virtual package size simultaneously, and this has resulted in many detection blind areas, the problem of causing using trouble.
Description
Technical field
The present invention relates to a kind of scintillation crystal detectors, and in particular to a kind of scintillation crystal detection with effective light guide
Device, belongs to nucleus medical image detector field.
Background technology
In nucleus medical image imaging device, scintillation crystal detectors are a kind of relatively common detectors.Visited this
Survey in device, gammaphoton or other ionising radiations are absorbed by highdensity scintillation crystal.Common scintillator crystal materials
There are lutetium oxyorthosilicate, the positive silicic acid lutetium yttrium crystal of oxygen, sodium iodide crystal, cesium iodide crystal etc..The energy quilt of gammaphoton
Scintillation crystal, which absorbs, is then converted into visible ray.The photodetector that visible ray is subsequently bonded on scintillation crystal is detected.
Being commonly used in the photodetector of nucleus medical image has photomultiplier, avalanche mode photodiodes, the snowslide of Geiger mode angular position digitizer
Photodiode, also referred to as silicon crystal photoelectric multiplier or many pixel photon counters.The sky of the detector of nucleus medical image
Between resolution ratio refer to the accuracy of active position of the gammaphoton in detector.A kind of detector for making high spatial resolution
Method is the detector cells for scintillation crystal being divided into very little.But the spatial resolution of existing scintillation crystal detectors system is
Determined by the size of single scintillation crystal unit.The scintillation crystal unit of this small size limits a scintillation crystal
The design of one spot detector of unit adhesion.Because the size of photodetector can not be processed into too small, system is also in addition
Substantial amounts of reading passage is needed, while the useful detection area of photodetector array is less than whole detector virtual package chi
Very little, this has resulted in many detection blind areas, the problem of causing using trouble.
The content of the invention
The technical problem to be solved in the present invention is that the spatial resolution of the existing scintillation crystal detectors system overcome is by list
The size of individual scintillation crystal unit is come the rule that determines.The method that spatial resolution is improved by reducing crystalline size is infeasible
's.Because the size of photodetector can not be processed into too small, system also needs to substantial amounts of reading passage in addition, while photoelectricity
The useful detection area of detector array is less than whole detector virtual package size, and it is blind that this has resulted in many detections
Area, there is provided a kind of scintillation crystal detectors with effective light guide for the problem of causing using trouble.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme：
The invention provides a kind of scintillation crystal detectors with effective light guide, including circuit board, the top of the circuit board
It is provided with the top of photodetector array, the photodetector array and is provided with light guide, is provided with the top of the light guide
Upper strata scintillation crystal array is provided with the top of lower floor's scintillation crystal array, lower floor's scintillation crystal array.
As a preferred technical solution of the present invention, lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 are adopted
Constituted with by numerous scintillation crystal elements, scintillation crystal is element but is not limited to lutetium oxyorthosilicate, light guide 3 is using continuous Jie
Texture is into photodetector array 2 is used and is made up of numerous photodetectors.
As a preferred technical solution of the present invention, lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 are mutual
Dislocation is placed.
As a preferred technical solution of the present invention, the thickness of light guide 3 be lower floor's scintillation crystal array 4 half or
Less, the thickness of light guide 3 is the half or less of upper strata scintillation crystal array 5.
As a preferred technical solution of the present invention, scintillation crystal array 4 and upper strata scintillation crystal array 5 use certain
A kind of dopant, effective light guide 3 needs to use another dopant.
As a preferred technical solution of the present invention, scintillation crystal array 4 and upper strata scintillation crystal array 5 can be used
But it is not limited to lutetium oxyorthosilicate or the positive silicic acid lutetium yttrium crystal of oxygen is constituted, light guide 3 can uses the positive silicic acid lutetium gadolinium crystal of oxygen
Constitute.Be conducive to scintillation crystal array 4 and upper strata scintillation crystal array 5 and the stable material quality of light guide 3.
The beneficial effect that is reached of the present invention is：The device is a kind of scintillation crystal detectors with effective light guide, is led to
Cross and light guide is added between scintillation crystal array and photodetector array, the optical signal that gammaphoton can be made to be produced after acting on
Can be evenly be disseminated on photodetector array, improves the discrimination of different scintillation crystal array units, improves
The spatial resolution of system, while the depth information acted on there is provided photon in scintillation crystal, reduces the parallel mistake of system
There is provided a kind of scintillation crystal detectors with effective light guide for difference.The present invention is reasonable in design, simple in construction, safe and reliable, make
With convenient, easy to maintain, have good value for applications.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural plan figure of the present invention；
In figure：1st, circuit board；2nd, photodetector array；3rd, light guide；4th, lower floor's scintillation crystal array；5th, upper strata scintillation crystal battle array
Row.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As shown in Figure 1-2, the present invention provides a kind of scintillation crystal detectors with effective light guide, including circuit board 1, its feature
It is that the top of circuit board 1 is provided with photodetector array 2, and the top of photodetector array 2 is provided with light guide 3, light guide
3 top is provided with lower floor's scintillation crystal array 4, and the top of lower floor's scintillation crystal array 4 is provided with upper strata scintillation crystal array
5。
Lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 using being made up of numerous scintillation crystal elements, flash
Crystal is element but is not limited to lutetium oxyorthosilicate, and light guide 3 is constituted using continuous media, photodetector array 2 using by
Numerous photodetector compositions.Link lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 and photodetector array 4
To have reached more preferable photoelectricity conducting effect
Lower floor's scintillation crystal array 4 and the mutual dislocation of upper strata scintillation crystal array 5 are placed.Be conducive to the raising of efficiency.
The thickness of light guide 3 is the half or less of lower floor's scintillation crystal array 4, and the thickness of light guide 3 is that upper strata flicker is brilliant
The half of volume array 5 is less.Be conducive to improving the degree of accuracy of collection information.
Scintillation crystal array 4 and upper strata scintillation crystal array 5 are using a certain dopant, and effective light guide 3 needs to use
Another dopant.Be conducive to photodetector array 2 and the conducting effect of light guide 3 good.
Scintillation crystal array 4 and upper strata scintillation crystal array 5 can use but be not limited to lutetium oxyorthosilicate or oxygen
Positive silicic acid lutetium yttrium crystal is constituted, and light guide 3 can be constituted using the positive silicic acid lutetium gadolinium crystal of oxygen.Be conducive to scintillation crystal array 4 and upper
Layer scintillation crystal array 5 and the stable material quality of light guide 3.
The device is a kind of scintillation crystal detectors with effective light guide, and scintillation crystal array is at least constituted by two layers,
When needing with the device, by lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 and photodetector array 2
Between add light guide 3, can enable gammaphoton act on after the optical signal that produces evenly be disseminated to photodetector battle array
On row 2, the discrimination of lower floor's scintillation crystal array 4 and the unit of upper strata scintillation crystal array 5 is improved, the space of system is improved
Resolution ratio.For the gammaphoton acted in effective light guide 3, the optical signal produced by it has half and upwardly propagated, then
The reflectorized material for being painted on lower floor's scintillation crystal array 4 and the cell surface of upper strata scintillation crystal array 5 is reflected.According to optics
Law, if the position exactly gammaphoton that reflected light is polymerize is in lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5
The mirror-reflection position of active position, the optical signal and gammaphoton that gammaphoton is produced in effective light guide 3 flashes in lower floor
Crystal array 4 is similar with distribution of the optical signal of generation on photodetector is acted in upper strata scintillation crystal array 5, thus
It can be good at generation position of the accurate determination event in light guide 3.If lower floor's scintillation crystal array 4 and upper strata scintillation crystal
Array 5 and effective light guide 3 use the scintillator crystal materials of different photon emission characteristics, by the difference for measuring scintillator crystal materials
Emission characteristic, it is possible to which it is the active position in which layer to determine gammaphoton, and this makes it possible to determine gammaphoton in detector
The depth information of middle effect, so as to reduce the Parallel errors of system.For there is the detector of multilayer scintillation crystal array, pass through light
Signal shares decoding and lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5 and effective light guide 3 uses different emission characteristics
Material, extra gammaphoton can be equally provided and acted in lower floor's scintillation crystal array 4 and upper strata scintillation crystal array 5
Depth information, so as to improve the spatial resolution of system.
The beneficial effect that is reached of the present invention is：The device is a kind of scintillation crystal detectors with effective light guide, is led to
Cross and light guide is added between scintillation crystal array and photodetector array, the optical signal that gammaphoton can be made to be produced after acting on
Can be evenly be disseminated on photodetector array, improves the discrimination of different scintillation crystal array units, improves
The spatial resolution of system, while the depth information acted on there is provided photon in scintillation crystal, reduces the parallel mistake of system
Difference provides a kind of scintillation crystal detectors with effective light guide.The present invention is reasonable in design, simple in construction, safe and reliable, make
With convenient, easy to maintain, have good value for applications.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for a person skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or to which part technical characteristic progress equivalent.
Within the spirit and principles of the invention, any modifications, equivalent substitutions and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of scintillation crystal detectors with effective light guide, including circuit board（1）, it is characterised in that the circuit board（1）
Top be provided with photodetector array（2）, the photodetector array（2）Top be provided with light guide（3）, the light
Lead（3）Top be provided with lower floor's scintillation crystal array（4）, lower floor's scintillation crystal array（4）Top be provided with upper strata
Scintillation crystal array（5）.
2. a kind of scintillation crystal detectors with effective light guide according to claim 1, it is characterised in that the lower floor
Scintillation crystal array（4）With the upper strata scintillation crystal array（5）Use and be made up of numerous scintillation crystal elements, the flicker
Crystal is element but is not limited to lutetium oxyorthosilicate, the light guide（3）Constituted using continuous media, the photodetector battle array
Row（2）Constituted using by numerous photodetectors.
3. a kind of scintillation crystal detectors with effective light guide according to claim 1, it is characterised in that the lower floor
Scintillation crystal array（4）With the upper strata scintillation crystal array（5）Mutual dislocation is placed.
4. a kind of scintillation crystal detectors with effective light guide according to claim 1, it is characterised in that the light guide
（3）Thickness be lower floor's scintillation crystal array（4）Half or less, the light guide（3）Thickness be the upper strata
Scintillation crystal array（5）Half or less.
5. a kind of scintillation crystal detectors with effective light guide according to claim 1, it is characterised in that the flicker
Crystal array（4）With the upper strata scintillation crystal array（5）Using a certain dopant, effective light guide（3）Need to adopt
Use another dopant.
6. a kind of scintillation crystal detectors with effective light guide according to claim 1, it is characterised in that the flicker
Crystal array（4）With the upper strata scintillation crystal array（5）Using but be not limited to lutetium oxyorthosilicate or the positive silicic acid lutetium of oxygen
Yttrium crystal is constituted, the light guide（3）It can be constituted using the positive silicic acid lutetium gadolinium crystal of oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346671.7A CN106950587A (en) | 2017-05-17 | 2017-05-17 | A kind of scintillation crystal detectors with effective light guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346671.7A CN106950587A (en) | 2017-05-17 | 2017-05-17 | A kind of scintillation crystal detectors with effective light guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950587A true CN106950587A (en) | 2017-07-14 |
Family
ID=59479115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710346671.7A Pending CN106950587A (en) | 2017-05-17 | 2017-05-17 | A kind of scintillation crystal detectors with effective light guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106950587A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489752A (en) * | 2018-12-29 | 2019-03-19 | 无锡洋湃科技有限公司 | A kind of multiphase flow rates mass metrology device based on ray coincidence measurement |
| CN109507715A (en) * | 2018-12-29 | 2019-03-22 | 无锡洋湃科技有限公司 | Multiphase flow total cross-section phase fraction measurement device and method based on ray coincidence measurement |
| CN109846504A (en) * | 2018-05-07 | 2019-06-07 | 山东麦德盈华科技有限公司 | A kind of full angle meets pet detector |
| CN109864752A (en) * | 2018-07-17 | 2019-06-11 | 山东麦德盈华科技有限公司 | It is a kind of entirety full angle meet brain pet detector and integral device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110062340A1 (en) * | 2009-09-11 | 2011-03-17 | Kabushiki Kaisha Toshiba | Positron emission tomography detector elements using different sizes of photomultiplier tubes |
| CN102707310A (en) * | 2012-06-21 | 2012-10-03 | 苏州瑞派宁科技有限公司 | Positron emission tomography detector for multilayer scintillation crystal |
| CN104730565A (en) * | 2015-03-10 | 2015-06-24 | 中国科学院上海光学精密机械研究所 | Ultrafast gamma ray energy disperse spectroscopy |
| CN104793231A (en) * | 2015-05-13 | 2015-07-22 | 北京永新医疗设备有限公司 | Gamma ray imaging detector and gamma ray imaging detector system having same |
| CN105769230A (en) * | 2016-02-03 | 2016-07-20 | 上海联影医疗科技有限公司 | Detector module and medical imaging device |
-
2017
- 2017-05-17 CN CN201710346671.7A patent/CN106950587A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110062340A1 (en) * | 2009-09-11 | 2011-03-17 | Kabushiki Kaisha Toshiba | Positron emission tomography detector elements using different sizes of photomultiplier tubes |
| CN102707310A (en) * | 2012-06-21 | 2012-10-03 | 苏州瑞派宁科技有限公司 | Positron emission tomography detector for multilayer scintillation crystal |
| CN104730565A (en) * | 2015-03-10 | 2015-06-24 | 中国科学院上海光学精密机械研究所 | Ultrafast gamma ray energy disperse spectroscopy |
| CN104793231A (en) * | 2015-05-13 | 2015-07-22 | 北京永新医疗设备有限公司 | Gamma ray imaging detector and gamma ray imaging detector system having same |
| CN105769230A (en) * | 2016-02-03 | 2016-07-20 | 上海联影医疗科技有限公司 | Detector module and medical imaging device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846504A (en) * | 2018-05-07 | 2019-06-07 | 山东麦德盈华科技有限公司 | A kind of full angle meets pet detector |
| CN109864752A (en) * | 2018-07-17 | 2019-06-11 | 山东麦德盈华科技有限公司 | It is a kind of entirety full angle meet brain pet detector and integral device |
| US11324467B2 (en) | 2018-07-17 | 2022-05-10 | Shandong Madic Technology Co., Ltd. | Overall full-angle coincidence brain PET detector and overall apparatus |
| CN109489752A (en) * | 2018-12-29 | 2019-03-19 | 无锡洋湃科技有限公司 | A kind of multiphase flow rates mass metrology device based on ray coincidence measurement |
| CN109507715A (en) * | 2018-12-29 | 2019-03-22 | 无锡洋湃科技有限公司 | Multiphase flow total cross-section phase fraction measurement device and method based on ray coincidence measurement |
| WO2020133768A1 (en) * | 2018-12-29 | 2020-07-02 | 无锡洋湃科技有限公司 | Multiphase flow mass metering device based on ray coincidence measurement |
| US20210325220A1 (en) * | 2018-12-29 | 2021-10-21 | Sea Pioneers Technologies Co., Ltd. | Device for measuring mass flow rate of multiphase flow based on ray coincidence measurement |
| CN109507715B (en) * | 2018-12-29 | 2023-11-24 | 无锡洋湃科技有限公司 | Multiphase flow full-section phase fraction measuring device and method based on ray coincidence measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8399843B2 (en) | Scintillation array method and apparatus | |
| US8324583B2 (en) | Scintillation pixel design and method of operation | |
| JP5909027B2 (en) | Multilayer scintillation crystal and PET detector | |
| JP5930973B2 (en) | Radiation detector | |
| CN106950587A (en) | A kind of scintillation crystal detectors with effective light guide | |
| CN101839991B (en) | Oblique arrangement type high-energy ray detector of composite photosensor | |
| CN103069302B (en) | The detector device of pixelation | |
| CN101806912A (en) | High-energy ray laminated type crystal module detector | |
| CN107678053A (en) | The manufacture method of radiation detector | |
| CN104793231B (en) | Gamma ray imaging detector and there is its gamma ray imaging detector system | |
| US9304211B2 (en) | Scintillation detector with active light guide | |
| WO2012034220A1 (en) | Depth-of-interaction scintillation detectors | |
| CN101752391B (en) | Snow slide drifting detector with MOS fully-depleted drifting channel and detecting method thereof | |
| JP2014519025A (en) | Gamma-ray detector based on Geiger mode avalanche photodiode | |
| US20120049073A1 (en) | Three-dimensional radiation position detector | |
| CN101839992B (en) | Photosensitive device inclined arrangement type high energy ray detector | |
| CN114699099A (en) | PET detector | |
| US20160259063A1 (en) | Integrated solid state scintillator dosimeter | |
| US20140203178A1 (en) | Position-sensitive detector for detecting photon or particle distributions | |
| CN113040800B (en) | PET detector, PET imaging system and gamma ray positioning method | |
| Martínez et al. | Innovative PET detector concept based on SiPMs and continuous crystals | |
| CN107942367A (en) | A kind of new γ photon high spatial resolution detection devices | |
| PT104328A (en) | HIGH RESOLUTION RANGE CAMERA | |
| KR101226901B1 (en) | Detector with inserted light guide and PET constructed using it | |
| JP3950964B2 (en) | Actuated radiation position detector in strong magnetic field |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170714 |