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公开(公告)号:US07105835B2
公开(公告)日:2006-09-12
申请号:US10451761
申请日:2002-07-16
申请人: Kengo Shibuya , Masanori Koshimizu , Yuko Takeoka , Keisuki Asai
发明人: Kengo Shibuya , Masanori Koshimizu , Yuko Takeoka , Keisuki Asai
CPC分类号: C09K11/664 , C09K11/06 , C09K2211/188
摘要: This invention provides a radiation detector using a scintillator having both a strong luminescence intensity and a short time constant. The radiation detector comprises as a scintillator an organic/inorganic perovskite hybrid compound represented by the general formula AMX3, wherein A is R—NH3 or R′—NH2, or a mixture thereof, R is a hydrogen atom or a methyl group which may be substituted by an amino group or a halogen atom, R′ is a methylene group which may be substituted by an amino group or a halogen atom, each X is a halogen atom that may be identical to or different from the other X groups, and M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd.
摘要翻译: 本发明提供一种使用具有强发光强度和短时间常数的闪烁体的放射线检测器。 辐射检测器包括作为闪烁体的由通式AMX 3 N表示的有机/无机钙钛矿杂化化合物,其中A是R-NH 3或R'-NH 2个或它们的混合物,R是氢原子或可以被氨基或卤素原子取代的甲基,R'是可以被氨基取代的亚甲基或 卤素原子,每个X是可以与其它X基团相同或不同的卤素原子,M是Ⅳa族金属,Eu,Cd,Cu,Fe,Mn或Pd。
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公开(公告)号:US06787250B2
公开(公告)日:2004-09-07
申请号:US10182924
申请日:2002-07-29
申请人: Kengo Shibuya , Masanori Koshimizu , Yuko Takeoka , Keisuke Asai
发明人: Kengo Shibuya , Masanori Koshimizu , Yuko Takeoka , Keisuke Asai
IPC分类号: G01T120
CPC分类号: G01T1/2018
摘要: This invention relates to a radiation detection device for detecting ionizing beam discharges such as gamma rays, x-rays, electron beams, charged particle beams and neutral particle beams. Specifically, it relates to a radiation detection device which can measure radiations which exist for a very short time (of the order of subnanoseconds or less) from the appearance of photoemission to extinction. It is an object of this invention to provide a radiation detection device using a perovskite organic-inorganic hybrid compound as a scintillator, the formula of this compound being (R1—NR113)2MX4 or (R2═NR122)2MX4, or alternatively, (NR133—R3—NR133)MX4 or (NR142═R4═NR142)MX4 (in the formula, R1 is a monovalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R2 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, and may be cyclic, R3 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R4 is a tetravalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R11-R14 may be identical or different, and may be hydrogen atoms or alkyl groups having two or more atoms, M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd, and X is a halogen atom). This radiation detection device can quantify the radiation amount of the detected radiation.
摘要翻译: 本发明涉及一种用于检测诸如γ射线,X射线,电子束,带电粒子束和中性粒子束的电离束放电的放射线检测装置。 具体地说,本发明涉及一种放射线检测装置,该放射线检测装置可以测量从光照发射到消光的非常短的时间(亚纳秒级以下)存在的辐射。本发明的目的是提供一种辐射检测装置 使用钙钛矿有机 - 无机杂化化合物作为闪烁体,该化合物的化学式为(R 1 -NR 11)2 M 2或(R 2 = NR 12)2 X 2,或者, NR 13 R 3或-NR 14 R 3 =(NR 14)= NR 4 = NR 14)MX 4(式中,R 1为单价 可以含有杂环并且可以被卤素原子取代的烃基,R 2是可以含有杂环并且可以被卤素原子取代的二价烃基,并且可以是环状,R 3是 可以含有杂环并且可以被卤素原子取代的二价烃基,R 4是可以含有杂环的四价烃基,并且可被ha取代 碱原子,R 11 -R 14可以相同或不同,可以是氢原子或具有两个或多个原子的烷基,M是Ⅳa族金属,Eu,Cd,Cu,Fe,Mn或Pd ,X为卤素原子)。 该放射线检测装置能够量化检测出的放射线的辐射量。
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公开(公告)号:US07087904B2
公开(公告)日:2006-08-08
申请号:US10451755
申请日:2002-07-29
申请人: Kengo Shibuya , Masanori Koshimizu , Keisuke Asai
发明人: Kengo Shibuya , Masanori Koshimizu , Keisuke Asai
CPC分类号: C09K11/664
摘要: This invention is a positron emission tomography (PET) device comprising as a scintillator a perovskite organic/inorganic hybrid compound selected from the group represented by the general formulae: (R1—NR113)2MX4 or (R2—NR12)2MX4, (NR133—R3—NR133)MX4, or (NR142═R4═NR142)MX4, or AMX3. When used as a scintillator, the perovskite organic/inorganic hybrid compound emits visible light with a very fast (subnanosecond order) response, allowing for improved resolution and time-of-flight PET methods.
摘要翻译: 本发明是一种正电子发射断层摄影(PET)装置,其包括选自以下通式表示的钙钛矿有机/无机杂化化合物作为闪烁体:<?in-line-formula description =“In-line Formulas”end =“ (“1”)11“3”3“(”1“)。 或(R 12)-NR 12,(NR 12)12,或(R 12) 3个或3个或更多个(NR(R 3)3) 2 u> 4 u> u> u> u> SUB>或AMX 3 u> <?in-line-formula description =“In-line Formulas”end =“tail”?>当用作闪烁体时,钙钛矿有机/无机杂化物 复合物以非常快的(亚纳秒级)响应发出可见光,允许改进分辨率和飞行时间PET方法。
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公开(公告)号:US20090121188A1
公开(公告)日:2009-05-14
申请号:US11883563
申请日:2006-01-27
申请人: Masanori Koshimizu , Kengo Shibuya , Haruo Saito , Keisuke Asai , Tsuneo Honda
发明人: Masanori Koshimizu , Kengo Shibuya , Haruo Saito , Keisuke Asai , Tsuneo Honda
IPC分类号: G01T1/20
CPC分类号: G01T1/2023 , C09K11/7733 , C30B11/00 , C30B29/12 , G21K4/00
摘要: [PROBLEMS] To provide a scintillator responding to high counting rate sustaining high-speed and high detection efficiency of BaF2 and to provide a radiation detection device with high time resolution by using the scintillator.[MEANS FOR SOLVING PROBLEMS] A specified amount of rare earth element (Eu) is doped into BaF2 to reduce long decay lifetime component (600 to 620 nm), leaving fast decaying component (0.6 to 0.8 ns) of BaF2 luminescence unchanged. The present invention is a high counting rate scintillator for detecting radiation comprising BaF2 doped with rare earth elements (Eu), wherein the doping amount is in the range of 0.02 to 1.0 mol %.
摘要翻译: [问题]提供响应于高计数率的闪烁体,其保持BaF2的高速和高检测效率,并通过使用闪烁体提供具有高时间分辨率的放射线检测装置。 [解决问题的手段]将BaF2中规定量的稀土元素(Eu)掺杂到BaF2中以减少长衰减寿命成分(600〜620nm),使BaF2发光的快速衰减成分(0.6〜0.8ns)不变。 本发明是用于检测包含掺杂有稀土元素(Eu)的BaF 2的辐射的高计数速率闪烁体,其中掺杂量在0.02至1.0mol%的范围内。
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