JP2020528137A - 核検出器 - Google Patents
核検出器 Download PDFInfo
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- JP2020528137A JP2020528137A JP2019568355A JP2019568355A JP2020528137A JP 2020528137 A JP2020528137 A JP 2020528137A JP 2019568355 A JP2019568355 A JP 2019568355A JP 2019568355 A JP2019568355 A JP 2019568355A JP 2020528137 A JP2020528137 A JP 2020528137A
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- light guide
- slit
- scintillation crystal
- nuclear detector
- array
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- 239000013078 crystal Substances 0.000 claims abstract description 97
- 239000000126 substance Substances 0.000 claims description 10
- 230000001186 cumulative effect Effects 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical group [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 2
- 238000010586 diagram Methods 0.000 abstract description 9
- 238000001228 spectrum Methods 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008878 coupling Effects 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000010354 integration Effects 0.000 description 5
- 241001465754 Metazoa Species 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 229910052765 Lutetium Inorganic materials 0.000 description 2
- ANDNPYOOQLLLIU-UHFFFAOYSA-N [Y].[Lu] Chemical compound [Y].[Lu] ANDNPYOOQLLLIU-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- CWCCJSTUDNHIKB-UHFFFAOYSA-N $l^{2}-bismuthanylidenegermanium Chemical compound [Bi]=[Ge] CWCCJSTUDNHIKB-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 description 1
- 229910001632 barium fluoride Inorganic materials 0.000 description 1
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
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
-
- 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
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
- G01T1/164—Scintigraphy
- G01T1/1641—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras
- G01T1/1642—Static instruments for imaging the distribution of radioactivity in one or two dimensions using one or several scintillating elements; Radio-isotope cameras using a scintillation crystal and position sensing photodetector arrays, e.g. ANGER cameras
-
- 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
- G01T1/2018—Scintillation-photodiode combinations
- G01T1/20185—Coupling means between the photodiode and the scintillator, e.g. optical couplings using adhesives with wavelength-shifting fibres
-
- 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
- G01T1/2023—Selection of materials
-
- 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
- G01T1/2026—Well-type detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/29—Measurement performed on radiation beams, e.g. position or section of the beam; Measurement of spatial distribution of radiation
- G01T1/2914—Measurement of spatial distribution of radiation
- G01T1/2985—In depth localisation, e.g. using positron emitters; Tomographic imaging (longitudinal and transverse section imaging; apparatus for radiation diagnosis sequentially in different planes, steroscopic radiation diagnosis)
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Measurement Of Radiation (AREA)
- Nuclear Medicine (AREA)
Abstract
Description
Claims (12)
- シンチレーション結晶アレイと、ライトガイドと、光検出器アレイとを備え、前記シンチレーション結晶アレイは、順次に密接に配置されており同じサイズを有する複数のシンチレーション結晶ストリップを含み、前記光検出器アレイは、順次に配置される複数の光検出器を含み、前記光検出器の断面積は、前記シンチレーション結晶ストリップの断面積よりも大きく、前記ライトガイドは、互いに対向する上面及び底面と、側面とを含み、前記ライトガイドの上面は、前記シンチレーション結晶アレイとカップリングされ、前記ライトガイドの底面は、前記光検出器アレイとカップリングされる核検出器において、
前記ライトガイドの厚さは、0.1mm〜40mmであり、
前記ライトガイドは、前記ライトガイドの縁に近い箇所に設けられているスリットをさらに有し、前記スリットは、前記ライトガイドの上面から前記ライトガイドの底面へ向かって延在し、前記スリットの深さは、前記ライトガイドの厚さの0.1〜0.5倍であることを特徴とする、核検出器。 - 前記ライトガイドは、直方体形状を有し、前記スリットの延在方向は、前記ライトガイドの前記上面及び前記底面と直交することを特徴とする、請求項1に記載の核検出器。
- 前記ライトガイドの前記側面から前記スリットまでの距離は、前記シンチレーション結晶ストリップの幅の1.1〜1.9倍であることを特徴とする、請求項2に記載の核検出器。
- 前記ライトガイドは、錐台の形状を有し、前記ライトガイドの上面の面積は、前記ライトガイドの底面の面積よりも大きく、前記スリットの延在方向は、前記錐台の側面と平行であることを特徴とする、請求項1に記載の核検出器。
- 前記スリットは、第1スリットと第2スリットとを有し、前記ライトガイドの前記側面から前記第1スリットまでの距離は、前記シンチレーション結晶ストリップの幅と等しく、前記ライトガイドの前記側面から前記第2スリットまでの距離は、前記シンチレーション結晶ストリップの幅の2倍と等しく、前記第1スリットの深さは、前記第2スリットの深さよりも大きくなっていることを特徴とする、請求項2又は請求項4に記載の核検出器。
- 前記スリットの数が1〜40であり、前記スリットは、前記ライトガイドの側面から前記ライトガイドの中心に向かって順次に配置され、前記スリットの深さが、前記ライトガイドの側面から前記ライトガイドの中心に向かって順次に小さくなっていることを特徴とする、請求項1に記載の核検出器。
- 前記シンチレーション結晶ストリップの幅は、0.5mm〜4mmであることを特徴とする、請求項1に記載の核検出器。
- 前記シンチレーション結晶ストリップの側面には、不透光性物質が塗布されていることを特徴とする、請求項1に記載の核検出器。
- 前記不透光性物質は、硫酸バリウム粉末又は鏡面反射フィルムであることを特徴とする、請求項8に記載の核検出器。
- 前記スリットの中及び前記ライトガイドの側面には、不透光性物質が塗布されていることを特徴とする、請求項1に記載の核検出器。
- 前記不透光性物質は黒色ペンキであることを特徴とする、請求項10に記載の核検出器。
- 前記ライトガイドの層数が1〜4層であり、各層の前記ライトガイドの累積厚さが0.1mm〜40mmであることを特徴とする、請求項1に記載の核検出器。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710631228.4 | 2017-07-28 | ||
CN201710631228.4A CN107167832A (zh) | 2017-07-28 | 2017-07-28 | 一种核探测器 |
PCT/CN2017/108097 WO2019019449A1 (zh) | 2017-07-28 | 2017-10-27 | 一种核探测器 |
Publications (2)
Publication Number | Publication Date |
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JP2020528137A true JP2020528137A (ja) | 2020-09-17 |
JP7224649B2 JP7224649B2 (ja) | 2023-02-20 |
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JP2019568355A Active JP7224649B2 (ja) | 2017-07-28 | 2017-10-27 | 核検出器 |
Country Status (5)
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US (1) | US11194062B2 (ja) |
EP (1) | EP3637148A4 (ja) |
JP (1) | JP7224649B2 (ja) |
CN (1) | CN107167832A (ja) |
WO (1) | WO2019019449A1 (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107167832A (zh) * | 2017-07-28 | 2017-09-15 | 苏州瑞派宁科技有限公司 | 一种核探测器 |
CN107728188B (zh) * | 2017-10-09 | 2019-08-16 | 山东麦德盈华科技有限公司 | 一种用于射线位置和能量测量的探测器和信号读出方法 |
CN109765603A (zh) * | 2017-11-09 | 2019-05-17 | 苏州瑞派宁科技有限公司 | 一种光导及核探测器 |
CN109856665B (zh) | 2018-12-04 | 2020-12-01 | 山东麦德盈华科技有限公司 | 一种减少硅光电倍增管用量的pet探测器及探测方法 |
CN109856664B (zh) * | 2018-12-04 | 2020-12-01 | 山东麦德盈华科技有限公司 | 一种部分光导不切割的pet探测器 |
CN109765599B (zh) * | 2018-12-11 | 2022-11-01 | 东软医疗系统股份有限公司 | 基于硅光电倍增管的探测器、机架和pet设备 |
CN112641455A (zh) * | 2019-10-09 | 2021-04-13 | 山东麦德盈华科技有限公司 | 一种头部渐窄型全身pet装置 |
CN110764182B (zh) * | 2019-11-08 | 2021-03-02 | 江苏赛诺格兰医疗科技有限公司 | 一种用于闪烁体探测器的光导制作方法 |
CN114486950A (zh) * | 2022-01-14 | 2022-05-13 | 中国原子能科学研究院 | 射线成像方法和装置 |
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JPH02155157A (ja) * | 1988-12-05 | 1990-06-14 | Matsushita Electric Ind Co Ltd | シンチレータ及びその光遮蔽膜の製造方法 |
JP2004354343A (ja) * | 2003-05-30 | 2004-12-16 | Shimadzu Corp | 放射線検出器 |
US20050167605A1 (en) * | 2003-11-20 | 2005-08-04 | Juni Jack E. | Edge effects treatment for crystals |
US20080063138A1 (en) * | 2004-10-29 | 2008-03-13 | Koninklijke Philips Electronics N.V. | Gos Ceramic Scintillating Fiber Optics X-Ray Imaging Plate for Use In Medical Df and Rf Imaging and in Ct |
CN104237924A (zh) * | 2014-08-20 | 2014-12-24 | 许剑锋 | 网格模具、包括该网格模具的检测器和发射成像设备 |
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2017
- 2017-07-28 CN CN201710631228.4A patent/CN107167832A/zh active Pending
- 2017-10-27 EP EP17919078.0A patent/EP3637148A4/en active Pending
- 2017-10-27 WO PCT/CN2017/108097 patent/WO2019019449A1/zh unknown
- 2017-10-27 US US16/623,038 patent/US11194062B2/en active Active
- 2017-10-27 JP JP2019568355A patent/JP7224649B2/ja active Active
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JP2004354343A (ja) * | 2003-05-30 | 2004-12-16 | Shimadzu Corp | 放射線検出器 |
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Also Published As
Publication number | Publication date |
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CN107167832A (zh) | 2017-09-15 |
EP3637148A1 (en) | 2020-04-15 |
JP7224649B2 (ja) | 2023-02-20 |
US11194062B2 (en) | 2021-12-07 |
US20200309969A1 (en) | 2020-10-01 |
EP3637148A4 (en) | 2021-03-17 |
WO2019019449A1 (zh) | 2019-01-31 |
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