CN103777225B - Contrast imaging detector scintillation crystal array and manufacture method thereof - Google Patents
Contrast imaging detector scintillation crystal array and manufacture method thereof Download PDFInfo
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- CN103777225B CN103777225B CN201410000501.XA CN201410000501A CN103777225B CN 103777225 B CN103777225 B CN 103777225B CN 201410000501 A CN201410000501 A CN 201410000501A CN 103777225 B CN103777225 B CN 103777225B
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- 239000013078 crystal Substances 0.000 title claims abstract description 110
- 238000003384 imaging method Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 19
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims abstract description 180
- 239000011248 coating agent Substances 0.000 claims abstract description 65
- 238000000576 coating method Methods 0.000 claims abstract description 65
- 239000002390 adhesive tape Substances 0.000 claims abstract description 22
- 239000005030 aluminium foil Substances 0.000 claims abstract description 22
- 239000003292 glue Substances 0.000 claims description 27
- 238000004064 recycling Methods 0.000 claims description 6
- 238000005538 encapsulation Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 11
- 238000002955 isolation Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract description 5
- 238000002600 positron emission tomography Methods 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000004060 metabolic process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012113 quantitative test Methods 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a kind of contrast imaging detector scintillation crystal array, comprise scintillation crystal crystal bar, first barium sulphate coating, the second barium sulphate coating and aluminium-foil paper adhesive tape, be assembled into scintillation crystal array by the first barium sulphate coating between multiple described scintillation crystal crystal bar, the second described barium sulphate coating and aluminium-foil paper adhesive tape are coated on the outside surface of scintillation crystal array respectively successively.Contrast imaging detector scintillation crystal array provided by the invention and manufacture method thereof, manufactured scintillation crystal array can obtain higher light output and lower optical crosstalk, and obtain preferably position resolution, and obtain good light isolation effect, contrast imaging detector scintillation crystal array and manufacture method thereof are had and assembles repeatable, with low cost and there is good receipts light and imaging effect.
Description
Technical field
The present invention relates to the field of section bar, particularly relate to a kind of contrast imaging detector scintillation crystal array and manufacture method thereof.
Background technology
PET (positron emission tomography) scanner (PET) is a kind of non-invasive imaging technique, the video picture of molecule metabolism can be reflected, when disease is in molecular level changes phase in early days, the kenel structure in disease district not yet presents exception, PET (positron emission tomography) scanner can find focus place, and 3-dimensional image can be obtained carry out quantitative test, reach the effect of early diagnosis early treatment.
The design of contrast imaging detector is then an epochmaking link in PET system development, and its module of contrast imaging detector mainly comprises two parts, i.e. electrooptical device and scintillation crystal array.But reflectivity and the light collection rate performance of scintillation crystal array of the prior art are not good, image space is easily caused to be difficult to differentiate.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of contrast imaging detector scintillation crystal array and manufacture method thereof, the first barium sulphate coating and the second barium sulphate coating is used to obtain preferably reflectivity and light collection rate, scintillation crystal array manufactured by it can obtain higher light output and lower optical crosstalk, and obtain preferably position resolution, simultaneously the first barium sulphate coating and the second barium sulphate coating also have a detachability; The outermost layer that aluminium-foil paper adhesive tape is scintillation crystal array is used to encapsulate; then can reach protection second barium sulphate coating and obtain good light isolation effect, the scintillation crystal array made being had and assembles repeatable, with low cost and there is good receipts light and imaging effect.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of contrast imaging detector scintillation crystal array and manufacture method thereof, comprise scintillation crystal crystal bar, first barium sulphate coating, the second barium sulphate coating and aluminium-foil paper adhesive tape, be assembled into scintillation crystal array by the first barium sulphate coating between multiple described scintillation crystal crystal bar, the second described barium sulphate coating and aluminium-foil paper adhesive tape are coated on the outside surface of scintillation crystal array respectively successively.
In a preferred embodiment of the present invention, on four sides that the second described barium sulphate coating and aluminium-foil paper adhesive tape are coated on scintillation crystal array respectively successively and a bottom surface.
In a preferred embodiment of the present invention, the first described barium sulphate coating and the thickness of the second barium sulphate coating are 0.05mm-1.0mm.
In a preferred embodiment of the present invention, the first described barium sulphate coating and the second barium sulphate coating include blanc fixe and glue, and the grain fineness of wherein said blanc fixe is 100-300 order.
In a preferred embodiment of the present invention, the thickness of described aluminium-foil paper adhesive tape is 0.02mm-0.1mm.
In a preferred embodiment of the present invention, described scintillation crystal array is rectangular parallelepiped or cube structure.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the manufacture method providing a kind of contrast imaging detector scintillation crystal array, comprises the following steps:
Step one: blanc fixe is sieved, obtaining grain fineness is 100-300 object blanc fixe;
Step 2: the electronic scales utilizing precision 0.1 gram, takes blanc fixe, adds glue and carries out mixing and stirring, namely obtain the barium sulphate glue of the first barium sulphate coating and the first barium sulphate coating;
Step 3: by multiple scintillation crystal crystal bar composition scintillation crystal array, first be coated with in the side for one of assembling scintillation crystal crystal bar and spread the barium sulphate glue prepared, utilize fixture to carry out 2 of 1+1=2 and spell assembling, remove barium sulphate glue unnecessary on limit, put into baking oven, after oven dry completes, again the surface that 2 spell the scintillation crystal crystal bar of assembling is coated barium sulphate glue, recycling fixture carries out 4 of 2+2=4 and spells assembling, carry out 4+4=8 by that analogy again 8 spell assembling, 16 of 8+8=16 spells assembling, to obtain the scintillation crystal array of the first barium sulphate coating bonding;
Step 4: all coat barium sulphate glue in four sides of the scintillation crystal array organized and the surface of a bottom surface, put oven for drying into, to obtain the second barium sulphate coating, recycling fine sandpaper is ground to the specification of required scintillation crystal array;
Step 5: the second barium sulphate coating is sticked aluminium-foil paper adhesive tape with the surface of four of the scintillation crystal array of complete system sides and a bottom surface, namely completes the manufacturing and encapsulation of scintillation crystal array.
In a preferred embodiment of the present invention, described glue and the mass ratio of blanc fixe are 1:3-5.
The invention has the beneficial effects as follows: contrast imaging detector scintillation crystal array of the present invention and manufacture method thereof, the first barium sulphate coating and the second barium sulphate coating is used to obtain preferably reflectivity and light collection rate, scintillation crystal array manufactured by it can obtain higher light output and lower optical crosstalk, and obtain preferably position resolution, simultaneously the first barium sulphate coating and the second barium sulphate coating also have a detachability; The outermost layer that aluminium-foil paper adhesive tape is scintillation crystal array is used to encapsulate; then can reach protection second barium sulphate coating and obtain good light isolation effect, the scintillation crystal array made being had and assembles repeatable, with low cost and there is good receipts light and imaging effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of contrast imaging detector scintillation crystal array method one of the present invention preferred embodiment;
Fig. 2 is the inner structure schematic diagram of contrast imaging detector scintillation crystal array in Fig. 1;
Fig. 3 is the process flow diagram of manufacture method one preferred embodiment of the contrast imaging detector scintillation crystal array of Fig. 1 and Fig. 2;
Being labeled as in accompanying drawing: 1, scintillation crystal array, the 2, first barium sulphate coating, the 3, second barium sulphate coating 4, aluminium-foil paper adhesive tape, 11, scintillation crystal crystal bar.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the embodiment of the present invention comprises:
A kind of contrast imaging detector scintillation crystal array and manufacture method thereof, comprise scintillation crystal crystal bar 11, first barium sulphate coating 2, second barium sulphate coating 3 and aluminium-foil paper adhesive tape 4, be assembled into scintillation crystal array 1 by the first barium sulphate coating 2 between multiple described scintillation crystal crystal bar 11, the second described barium sulphate coating 3 and aluminium-foil paper adhesive tape 4 are coated on the outside surface of scintillation crystal array 1 respectively successively.
In above-mentioned, on four sides that the second described barium sulphate coating 2 and aluminium-foil paper adhesive tape 4 are coated on scintillation crystal array 1 respectively successively and a bottom surface.Use aluminium-foil paper adhesive tape 4 is the outermost layer encapsulation of scintillation crystal array 1, then can reach protection second barium sulphate coating 3 and obtain good light isolation effect.Wherein, described scintillation crystal array 1 is rectangular parallelepiped or cube structure.
Further, the first described barium sulphate coating 2 and the second barium sulphate coating 3 include blanc fixe and glue, and the mass ratio of glue and blanc fixe is 1:3-5.Blanc fixe is white powder, do not have toxicity, hard to tolerate in water, there is non-deliquescent characteristic, use the coating that blanc fixe mixing glue is scintillation crystal array 1, can obtain preferably reflectivity and light collection rate, its scintillation crystal array 1 can obtain higher light output and lower optical crosstalk, and obtains preferably position resolution.Wherein, the grain fineness of described blanc fixe is 100-300 order.
As shown in Figure 3, present invention also offers the manufacture method of contrast imaging detector scintillation crystal array, comprise the following steps:
Step one: blanc fixe is sieved, obtaining grain fineness is 100-300 object blanc fixe;
Step 2: the electronic scales utilizing precision 0.1 gram, takes blanc fixe, adds glue and carries out mixing and stirring, and the mass ratio of glue and blanc fixe is 1:3-5, namely obtains the barium sulphate glue of barium sulphate coating;
Step 3: by multiple scintillation crystal crystal bar composition scintillation crystal array, first be coated with in the side for one of assembling scintillation crystal crystal bar and spread the barium sulphate glue prepared, utilize fixture to carry out 2 of 1+1=2 and spell assembling, remove barium sulphate glue unnecessary on limit, put into baking oven, after oven dry completes, again the surface that 2 spell the scintillation crystal crystal bar of assembling is coated barium sulphate glue, recycling fixture carries out 4 of 2+2=4 and spells assembling, carry out 4+4=8 by that analogy again 8 spell assembling, 16 of 8+8=16 spells assembling, to obtain the scintillation crystal array of the first barium sulphate coating bonding;
Step 4: all coat barium sulphate glue in four sides of the scintillation crystal array organized and the surface of a bottom surface, put oven for drying into, to obtain the second barium sulphate coating, recycling fine sandpaper is ground to the specification of required scintillation crystal array;
Step 5: the aluminium-foil paper adhesive tape the second barium sulphate coating being sticked 0.02mm-0.1mm with the scintillation crystal array of complete system surface, namely completes the manufacturing and encapsulation of scintillation crystal array.
In the present invention, the first described barium sulphate coating 2 and the thickness of the second barium sulphate coating 3 are 0.05mm-1.0mm; The thickness of described aluminium-foil paper adhesive tape 4 is 0.02mm-0.1mm.
Its principle of work is: utilize accelerator-produced ultrashort half life period isotope, as
11c,
13n,
15o,
18f etc. inject human body as tracer agent, participate in the physiological metabolism process in human body, the negatron of the positron utilizing them to launch in body is combined to be buried in oblivion, thus a pair energy producing direction contrary (180 degree) is the gamma rays of 511KeV, photon is formed after entering scintillation crystal array 1, electric signal is converted to again by photomultiplier (PMT), the correction of scattering and random information is carried out by computing machine, and carry out analyzing and processing, the 3-D view of situation can be assembled in vivo.
In order to correctly effectively catch the gamma photons produced by positron annihilation, five of scintillation crystal array 1 faces are coated the second barium sulphate coating 3 with good reflection rate, only stay an output face as the receiving surface of electrooptical device, with this output as light signal and RX path.Have through contrast imaging detector scintillation crystal array of the present invention and assemble repeatable, with low cost and there is good receipts light and imaging effect.
The contrast imaging detector scintillation crystal array that the present invention discloses and manufacture method thereof, the first barium sulphate coating 2 and the second barium sulphate coating 3 is used to obtain preferably reflectivity and light collection rate, its scintillation crystal array manufactured can obtain higher light output and lower optical crosstalk, and obtain preferably position resolution, simultaneously the first barium sulphate coating 2 and the second barium sulphate coating 3 also have a detachability; Use aluminium-foil paper adhesive tape 4 is the outermost layer encapsulation of scintillation crystal array; then can reach protection second barium sulphate coating 3 and obtain good light isolation effect, scintillation crystal array and manufacture method thereof being had and assembles repeatable, with low cost and there is good receipts light and imaging effect.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a contrast imaging detector scintillation crystal array, it is characterized in that, comprise scintillation crystal crystal bar, first barium sulphate coating, second barium sulphate coating and aluminium-foil paper adhesive tape, scintillation crystal array is assembled into by the first barium sulphate coating between multiple described scintillation crystal crystal bar, the second described barium sulphate coating and aluminium-foil paper adhesive tape are coated on the outside surface of scintillation crystal array respectively successively, the first described barium sulphate coating and the second barium sulphate coating include blanc fixe and glue, the mass ratio of glue and blanc fixe is 1:3-5, wherein, the grain fineness of described blanc fixe is 100-300 order.
2. contrast imaging detector scintillation crystal array according to claim 1, is characterized in that, on four sides that the second described barium sulphate coating and aluminium-foil paper adhesive tape are coated on scintillation crystal array respectively successively and a bottom surface.
3. contrast imaging detector scintillation crystal array according to claim 1, is characterized in that, the first described barium sulphate coating and the thickness of the second barium sulphate coating are 0.05mm-1.0mm.
4. contrast imaging detector scintillation crystal array according to claim 1, is characterized in that, the thickness of described aluminium-foil paper adhesive tape is 0.02mm-0.1mm.
5. contrast imaging detector scintillation crystal array according to claim 1, is characterized in that, described scintillation crystal array is rectangular parallelepiped or cube structure.
6., according to the manufacture method of the contrast imaging detector scintillation crystal array one of claim 1-5 Suo Shu, it is characterized in that, comprise the following steps:
Step one: blanc fixe is sieved, obtaining grain fineness is 100-300 object blanc fixe;
Step 2: the electronic scales utilizing precision 0.1 gram, takes blanc fixe, adds glue and carries out mixing and stirring, namely obtain the barium sulphate glue of the first barium sulphate coating and the first barium sulphate coating;
Step 3: by multiple scintillation crystal crystal bar composition scintillation crystal array, first be coated with in the side for one of assembling scintillation crystal crystal bar and spread the barium sulphate glue prepared, utilize fixture to carry out 2 of 1+1=2 and spell assembling, remove barium sulphate glue unnecessary on limit, put into baking oven, after oven dry completes, again the surface that 2 spell the scintillation crystal crystal bar of assembling is coated barium sulphate glue, recycling fixture carries out 4 of 2+2=4 and spells assembling, carry out 4+4=8 by that analogy again 8 spell assembling, 16 of 8+8=16 spells assembling, to obtain the scintillation crystal array of the first barium sulphate coating bonding;
Step 4: all coat barium sulphate glue in four sides of the scintillation crystal array organized and the surface of a bottom surface, put oven for drying into, to obtain the second barium sulphate coating, recycling fine sandpaper is ground to the specification of required scintillation crystal array;
Step 5: aluminium-foil paper adhesive tape is sticked on the surface of four sides and a bottom surface that scribble the scintillation crystal array of the second barium sulphate coating, namely completes the manufacturing and encapsulation of scintillation crystal array.
7. the manufacture method of contrast imaging detector scintillation crystal array according to claim 6, is characterized in that, described glue and the mass ratio of blanc fixe are 1:3-5.
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| CN104237924B (en) * | 2014-08-20 | 2017-07-28 | 许剑锋 | Grid mould includes the detector and transmitting imaging device of the grid mould |
| CN104597475B (en) * | 2015-01-24 | 2017-11-14 | 东莞南方医大松山湖科技园有限公司 | Detector and preparation method thereof and the transmitting imaging device with the detector |
| CN109254310A (en) * | 2018-10-17 | 2019-01-22 | 苏州瑞派宁科技有限公司 | Detection device, the imaging system including the detection device and its detection method |
| CN110576356B (en) * | 2019-09-25 | 2021-02-19 | 中国电子科技集团公司第二十六研究所 | Method for processing scintillator crystal strips in batches |
| CN113176604A (en) * | 2021-04-30 | 2021-07-27 | 中国电子科技集团公司第二十六研究所 | Scintillation crystal array anti-irradiation reinforcing structure and anti-irradiation reinforcing method |
Citations (4)
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| CN101644780A (en) * | 2008-08-04 | 2010-02-10 | 北京大学 | Scintillation crystal array detecting device |
| CN102176335A (en) * | 2011-01-29 | 2011-09-07 | 江苏中惠医疗科技股份有限公司 | Method for manufacturing crystal array of gamma-ray detector |
| CN102565841A (en) * | 2012-02-06 | 2012-07-11 | 清华大学 | Scintillation crystal array and scintillation detector possessing the same |
| CN203825204U (en) * | 2014-01-02 | 2014-09-10 | 苏州晶特晶体科技有限公司 | Contrast imaging detector scintillation crystal array |
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| US7019297B2 (en) * | 2003-05-20 | 2006-03-28 | Cti Pet Systems, Inc. | Detector array using internalized light sharing and air coupling |
| JP2011106981A (en) * | 2009-11-18 | 2011-06-02 | Furukawa Co Ltd | Scintillator array |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644780A (en) * | 2008-08-04 | 2010-02-10 | 北京大学 | Scintillation crystal array detecting device |
| CN102176335A (en) * | 2011-01-29 | 2011-09-07 | 江苏中惠医疗科技股份有限公司 | Method for manufacturing crystal array of gamma-ray detector |
| CN102565841A (en) * | 2012-02-06 | 2012-07-11 | 清华大学 | Scintillation crystal array and scintillation detector possessing the same |
| CN203825204U (en) * | 2014-01-02 | 2014-09-10 | 苏州晶特晶体科技有限公司 | Contrast imaging detector scintillation crystal array |
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Effective date of registration: 20230605 Address after: 225300 7-5-b-109, No. 8, Xingguo Road, Gaogang high tech Zone, Taizhou City, Jiangsu Province Patentee after: Jiangsu Jingte Crystal Technology Co.,Ltd. Address before: 215400 hengsi Road, Chengxiang Town, Taicang City, Suzhou City, Jiangsu Province Patentee before: SUZHOU JTCRYSTAL Co.,Ltd. |
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Denomination of invention: Contrast imaging detector scintillation crystal array and its manufacturing method Granted publication date: 20160330 Pledgee: Bank of China Limited by Share Ltd. Taizhou Gaogang sub branch Pledgor: Jiangsu Jingte Crystal Technology Co.,Ltd. Registration number: Y2024980012639 |
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