JP2016538366A - ガーネットシンチレータ組成物 - Google Patents
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- JP2016538366A JP2016538366A JP2016522011A JP2016522011A JP2016538366A JP 2016538366 A JP2016538366 A JP 2016538366A JP 2016522011 A JP2016522011 A JP 2016522011A JP 2016522011 A JP2016522011 A JP 2016522011A JP 2016538366 A JP2016538366 A JP 2016538366A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7774—Aluminates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K51/00—Preparations containing radioactive substances for use in therapy or testing in vivo
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/50—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare-earth compounds
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/62—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing gallium, indium or thallium
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B28/00—Production of homogeneous polycrystalline material with defined structure
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/10—Inorganic compounds or compositions
- C30B29/16—Oxides
- C30B29/22—Complex oxides
- C30B29/28—Complex oxides with formula A3Me5O12 wherein A is a rare earth metal and Me is Fe, Ga, Sc, Cr, Co or Al, e.g. garnets
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- 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
-
- 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
- G01T1/29—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)
Abstract
Description
Claims (18)
- 式(LuyGd3−y)(GaxAl5−x)O12:Ceによって表現され、y=1±0.5であり、x=3±0.25であり、Ceが0.01モル%乃至0.7モル%のレンジにある、セラミック又は多結晶のシンチレータ組成物。
- Ceが、0.05モル%乃至0.7モル%のレンジにある、請求項1に記載のシンチレータ組成物。
- Ceが、0.1モル%乃至0.7モル%のレンジにある、請求項1に記載のシンチレータ組成物。
- Ceが、0.05モル%乃至0.2モル%のレンジにある、請求項1に記載のシンチレータ組成物。
- Ceが、0.1モル%乃至0.2モル%のレンジにある、請求項1に記載のシンチレータ組成物。
- 55ns以下の一次崩壊定数を有する、請求項1乃至5のいずれか1項に記載のシンチレータ組成物。
- 30000光子/MeVを越える光収率を有する、請求項1乃至6のいずれか1項に記載のシンチレータ組成物。
- 光学検出器と光学的に通信する請求項1乃至7のいずれか1項に記載のシンチレータ組成物を有するガンマ光子検出器。
- イオン化放射線を検出する検出器であって、光学検出器と光学的に通信する請求項1乃至7のいずれか1項に記載のシンチレータ組成物を有する検出器。
- イメージング領域を有し、請求項8に記載のガンマ光子検出器の複数を有するPETイメージングシステムであって、前記複数のガンマ光子検出器が、前記イメージング領域の軸の周囲に半径方向に配され、前記イメージング領域からガンマ光子を受け取るように構成される、PETイメージングシステム。
- 請求項10に記載のPETイメージングシステムを有するTOF PETイメージングシステムであって、崩壊事象によって生成された及びガンマ光子検出器によって実質的に同時に受け取られたガンマ光子の対の間の時間差を計算することによって、イメージング領域内の崩壊事象の起点位置を特定するタイミング回路を更に有する、TOF PETイメージングシステム。
- 750ns未満の同時分解時間を有する、請求項10に記載のPETイメージングシステム又は請求項11に記載のTOF PETイメージングシステム。
- 請求項10乃至12のいずれか1項に記載のPETイメージングシステム及び第2のイメージングシステムを有する統合イメージングシステムであって、
前記第2のイメージングシステムが、前記PETイメージングシステムのイメージング領域の軸から軸方向に隔てられたイメージング領域、又は前記PETイメージングシステムのイメージング領域と一致するイメージング領域を有する、統合イメージングシステム。 - 前記第2のイメージングシステムが、コンピュータトモグラフィ、MR又は超音波イメージングシステムである、請求項13に記載の統合イメージングシステム。
- ガンマ光子を検出する方法であって、
請求項1乃至7のいずれか1項に記載のシンチレータ組成物でガンマ光子を受け取るステップと、
前記シンチレータ組成物と光学的に通信する光学検出器を使用して前記シンチレータ組成物によって生成されるシンチレーション光を検出するステップと、
受け取ったガンマ光子に応じた電気出力を前記光学検出器から生成するステップと、
を含む方法。 - 請求項1乃至7のいずれか1項に記載のシンチレータ組成物の製造方法であって、
所望のシンチレータ組成物を得るために適した割合で物質Lu2O3、Gd2O3、Al2O3、Ga2O3及びCeO2を提供するステップと、
スラリを得るために、前記物質を分散剤の存在下でミリングするステップと、
粒状化された混合物を形成するために前記スラリを乾燥するステップと、
ペレットを形成するために前記粒状化された混合物をドライプレスするステップと、
前記ペレットを加熱するステップと、
真空炉で1650℃乃至1750℃のレンジの温度で前記ペレットを焼結するステップと、
1000℃乃至1600℃のレンジの温度で前記ペレットをアニールするステップと、
を含む製造方法。 - ガンマ光子検出器又はPETイメージングシステムにおける、請求項1乃至7のいずれか1項に記載のシンチレータ組成物の使用。
- イメージング領域内の放射性トレーサの分布を示すPET画像を生成する方法であって、
被検体に放射性トレーサを投与するステップと、
前記放射性トレーサの投与後、予め規定された摂取期間待機するステップと、
請求項10に記載のPETイメージングシステム、請求項11に記載のTOF PETイメージングシステム、又は請求項12に記載のPETイメージングシステム若しくはTOF PETイメージングシステムにより被検体の一部をイメージングするステップと、
を含む方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US201361916963P | 2013-12-17 | 2013-12-17 | |
US61/916,963 | 2013-12-17 | ||
EP14157017 | 2014-02-27 | ||
EP14157017.6 | 2014-02-27 | ||
PCT/EP2014/077856 WO2015106904A1 (en) | 2013-12-17 | 2014-12-16 | Garnet scintillator composition |
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JP2016538366A true JP2016538366A (ja) | 2016-12-08 |
JP6174797B2 JP6174797B2 (ja) | 2017-08-02 |
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US (1) | US9777214B2 (ja) |
EP (1) | EP3041912B1 (ja) |
JP (1) | JP6174797B2 (ja) |
CN (1) | CN105555915B (ja) |
ES (1) | ES2627561T3 (ja) |
PL (1) | PL3041912T3 (ja) |
RU (1) | RU2664114C2 (ja) |
WO (1) | WO2015106904A1 (ja) |
Cited By (1)
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JP2019515856A (ja) * | 2016-03-08 | 2019-06-13 | ローレンス リバモア ナショナル セキュリティー, エルエルシー | 陽電子放出断層撮影のための透明セラミックガーネットシンチレーター検出器 |
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WO2017091697A1 (en) * | 2015-11-23 | 2017-06-01 | Berr Stuart S | Positron emission tomography systems and methods |
US10150914B2 (en) | 2015-11-25 | 2018-12-11 | Siemens Medical Solutions Usa, Inc. | Ceramic phoswich with fused optical elements, method of manufacture thereof and articles comprising the same |
CN108329029B (zh) * | 2018-04-16 | 2020-12-15 | 厦门迈通光电有限公司 | 一种低温烧结闪烁体材料及其制备方法 |
US11031210B2 (en) * | 2019-03-06 | 2021-06-08 | El-Mul Technologies Ltd. | Charged particle detection system |
CN112281215B (zh) * | 2020-09-30 | 2021-06-15 | 中国电子科技集团公司第二十六研究所 | Ce掺杂钆铝镓石榴石结构闪烁晶体提高发光均匀性、降低余晖的方法及晶体材料和探测器 |
CN115991601B (zh) * | 2022-11-18 | 2024-04-12 | 上海御光新材料科技股份有限公司 | 一种复相透明闪烁陶瓷的制备方法 |
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2014
- 2014-12-16 EP EP14812503.2A patent/EP3041912B1/en active Active
- 2014-12-16 CN CN201480051687.XA patent/CN105555915B/zh active Active
- 2014-12-16 WO PCT/EP2014/077856 patent/WO2015106904A1/en active Application Filing
- 2014-12-16 PL PL14812503T patent/PL3041912T3/pl unknown
- 2014-12-16 ES ES14812503.2T patent/ES2627561T3/es active Active
- 2014-12-16 US US14/915,282 patent/US9777214B2/en active Active
- 2014-12-16 RU RU2016113691A patent/RU2664114C2/ru active
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2019515856A (ja) * | 2016-03-08 | 2019-06-13 | ローレンス リバモア ナショナル セキュリティー, エルエルシー | 陽電子放出断層撮影のための透明セラミックガーネットシンチレーター検出器 |
JP2021176962A (ja) * | 2016-03-08 | 2021-11-11 | ローレンス・リバモア・ナショナル・セキュリティー・エルエルシー | 陽電子放出断層撮影のための透明セラミックガーネットシンチレーター検出器 |
JP7269994B2 (ja) | 2016-03-08 | 2023-05-09 | ローレンス・リバモア・ナショナル・セキュリティー・エルエルシー | 陽電子放出断層撮影のための透明セラミックガーネットシンチレーター検出器 |
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RU2016113691A3 (ja) | 2018-06-13 |
ES2627561T3 (es) | 2017-07-28 |
WO2015106904A1 (en) | 2015-07-23 |
JP6174797B2 (ja) | 2017-08-02 |
EP3041912A1 (en) | 2016-07-13 |
RU2016113691A (ru) | 2017-10-13 |
US9777214B2 (en) | 2017-10-03 |
CN105555915B (zh) | 2019-12-10 |
PL3041912T3 (pl) | 2017-09-29 |
US20160312117A1 (en) | 2016-10-27 |
EP3041912B1 (en) | 2017-03-29 |
RU2664114C2 (ru) | 2018-08-15 |
CN105555915A (zh) | 2016-05-04 |
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