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公开(公告)号：US08809797B2
公开(公告)日：2014-08-19
申请号：US13885026
申请日：2011-12-15
申请人： Hisanori Yamane , Tetsuya Kawano , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto , Kentaro Fukuda , Noriaki Kawaguchi
发明人： Hisanori Yamane , Tetsuya Kawano , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto , Kentaro Fukuda , Noriaki Kawaguchi
CPC分类号： C09K11/57 , C04B35/01 , C04B2235/3203 , C04B2235/3206 , C04B2235/3241 , C04B2235/3262 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3409 , C04B2235/658 , C04B2235/76 , C04B2235/77 , C09K11/63 , G01T3/06 , G21K4/00
摘要： Provided is a scintillator for neutrons that allows the detection of neutrons with superb sensitivity and that is little affected by background noise derived from γ-rays, and a neutron detector that uses the neutron scintillator.The scintillator for neutrons comprises borate that contains at least Mg and a divalent transition element.
摘要翻译： 提供了一种用于中子的闪烁体，其允许以极高的灵敏度检测中子，并且几乎不受来自γ射线的背景噪声的影响，以及使用中子闪烁体的中子检测器。 用于中子的闪烁体包括含有至少Mg和二价过渡元素的硼酸盐。
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公开(公告)号：US20140021355A1
公开(公告)日：2014-01-23
申请号：US14009047
申请日：2012-04-02
CPC分类号： C09K11/7733 , C09K11/772 , C09K11/7732 , G01T1/2023 , G01T3/06 , G21K4/00
摘要： The present invention aims at providing a scintillator for high temperature environments which has satisfactory light emission characteristics under high temperature environments; and a method for measuring radiation under high temperature environments. The scintillator for high temperature environments comprises a colquiriite-type crystal represented by the chemical formula LiM1M2X6 (where M1 is at least one alkaline earth metal element selected from Mg, Ca, Sr and Ba, M2 is at least one metal element selected from Al, Ga and Sc, and X is at least one halogen element selected from F, Cl, Br and I), for example, typified by LiCaAlF6, and the crystal optionally containing a lanthanoid element such as Ce or Eu. The method for measuring radiation under high temperature environments uses the scintillator.
摘要翻译： 本发明旨在提供一种在高温环境下具有令人满意的发光特性的高温环境的闪烁体; 以及在高温环境下测量辐射的方法。 用于高温环境的闪烁体包括由化学式LiM1M2X6（其中M1是选自Mg，Ca，Sr和Ba中的至少一种碱土金属元素）表示的立次菱形晶体，M2是选自Al， Ga和Sc，X是选自F，Cl，Br和I中的至少一种卤素元素），例如以LiCaAlF 6为代表的晶体，以及任选地含有镧系元素如Ce或Eu的晶体。 在高温环境下测量辐射的方法使用闪烁体。
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3.发明授权公开(公告)号：US09068114B2
公开(公告)日：2015-06-30
申请号：US13822744
申请日：2011-11-01
申请人： Kentaro Fukuda , Noriaki Kawaguchi , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
发明人： Kentaro Fukuda , Noriaki Kawaguchi , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
CPC分类号： C09K11/616 , C09K11/772 , C30B21/00 , C30B29/12 , G01T3/06 , G21K4/00 , G21K2004/06
摘要： [Problems to be Solved] A neutron scintillator excellent in detection efficiency for neutrons, an S/N ratio, and n/γ discrimination ability, and a eutectic preferred for the neutron scintillator are provided.[Means to Solve the Problems] A metal fluoride eutectic, in which a lithium fluoride crystal phase and a crystal phase represented by the chemical formula Ca1-xSrxF2 (where x denotes a number greater than 0, but not larger than 1), such as SrF2 or Ca0.5Sr0.5F2, are present in a phase-separated state; a neutron scintillator comprising the eutectic; and a neutron imaging device comprising a combination of the neutron scintillator and a position-sensitive photomultiplier tube.
摘要翻译： [待解决的问题]提供了对中子的检测效率优异的中子闪烁体，S / N比和n /γ判别能力以及中子闪烁体优选的共晶体。 [解决问题的手段]以化学式Ca1-xSrxF2（其中x表示大于0但不大于1的数）表示的氟化锂结晶相和结晶相的金属氟化物共晶，例如 SrF2或Ca0.5Sr0.5F2以相分离状态存在; 包含共晶的中子闪烁体; 以及包括中子闪烁体和位置敏感光电倍增管的组合的中子成像装置。
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公开(公告)号：US08642972B2
公开(公告)日：2014-02-04
申请号：US13695088
申请日：2011-04-26
申请人： Kentaro Fukuda , Sumito Ishizu , Noriaki Kawaguchi , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota
发明人： Kentaro Fukuda , Sumito Ishizu , Noriaki Kawaguchi , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota
IPC分类号： G01T3/06
CPC分类号： G01T3/06 , C09K11/7733 , G21K4/00
摘要： [Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/γ discrimination ability, and a neutron detector using the neutron scintillator are provided.[Means to Solve the Problems] A neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the thickness of the lithium fluoride crystal layers in the eutectic body being 0.1 to 5 μm; or a neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the calcium fluoride crystal layers in the eutectic body being linearly continuous in at least one direction; and a neutron detector basically constructed from any of the neutron scintillators and a photodetector.
摘要翻译： [待解决的问题]提供了中子检测效率和n /γ辨别能力优异的中子闪烁体和使用中子闪烁体的中子检测器。 [解决问题的手段]包含由层状氟化锂晶体和层状氟化钙晶体构成的共晶体的中子闪烁体，层状交替排列，共晶体中的氟化锂晶体层的厚度为0.1〜5μm; 或包含交替排列成层状氟化锂晶体和层状氟化钙晶体的共晶体的中子闪烁体，所述共晶体中的氟化钙晶体层在至少一个方向上呈线性连续; 以及基本由中子闪烁体和光电检测器构成的中子探测器。
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公开(公告)号：US20130327946A1
公开(公告)日：2013-12-12
申请号：US14001181
申请日：2012-02-24
申请人： Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
发明人： Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
IPC分类号： G01T3/06
CPC分类号： G01T3/06 , C09K11/613 , C09K11/7732 , C30B15/00 , C30B29/12 , G21K4/00
摘要： A novel scintillator for neutron detection is capable of increasing the probability of inducing a nuclear reaction using epithermal neutrons having higher energy than thermal neutrons as a result of increasing thickness in the direction of incidence of neutron radiation. A scintillator for neutron detection includes a colquiriite-type fluoride single crystal containing europium, containing 0.0025 mol % or more and less than 0.05 mol % europium, containing 0.80 atom/nm3 or more 6Li, and being shaped such that the thickness in the thickest part exceeds 1 mm.
摘要翻译： 用于中子检测的新颖的闪烁体能够增加使用具有比热中子更高的能量的超热中子引起核反应的可能性，这是由于中子辐射入射方向上的厚度增加的结果。 用于中子检测的闪烁体包括含有0.0025摩尔％以上且小于0.05摩尔％的含有0.80原子/ nm 3以上6Li的铕的含有铕的扁桃体型氟化物单晶，并且成形为使得最厚部分 超过1毫米。
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6.发明申请公开(公告)号：US20130168561A1
公开(公告)日：2013-07-04
申请号：US13822744
申请日：2011-11-01
申请人： Kentaro Fukuda , Noriaki Kawaguchi , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
发明人： Kentaro Fukuda , Noriaki Kawaguchi , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
CPC分类号： C09K11/616 , C09K11/772 , C30B21/00 , C30B29/12 , G01T3/06 , G21K4/00 , G21K2004/06
摘要： [Problems to be Solved] A neutron scintillator excellent in detection efficiency for neutrons, an S/N ratio, and n/γ discrimination ability, and a eutectic preferred for the neutron scintillator are provided.[Means to Solve the Problems] A metal fluoride eutectic, in which a lithium fluoride crystal phase and a crystal phase represented by the chemical formula Ca1-xSrxF2 (where x denotes a number greater than 0, but not larger than 1), such as SrF2 or Ca0.5Sr0.5F2, are present in a phase-separated state; a neutron scintillator comprising the eutectic; and a neutron imaging device comprising a combination of the neutron scintillator and a position-sensitive photomultiplier tube.
摘要翻译： [待解决的问题]提供了对于中子的检测效率优异的中子闪烁体，S / N比和n /γ辨别能力以及中子闪烁体优选的共晶体。 [解决问题的方法]一种金属氟化物共晶体，其中氟化锂结晶相和由化学式Ca1-xSrxF2表示的结晶相（其中x表示大于0但不大于1的数），例如 SrF2或Ca0.5Sr0.5F2以相分离状态存在; 包含共晶的中子闪烁体; 以及包括中子闪烁体和位置敏感光电倍增管的组合的中子成像装置。
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公开(公告)号：US20130112885A1
公开(公告)日：2013-05-09
申请号：US13809493
申请日：2011-07-20
申请人： Hiromitsu Takahashi , Mitsuo Yonetani , Masayuki Matsuoka , Yasushi Fukazawa , Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
发明人： Hiromitsu Takahashi , Mitsuo Yonetani , Masayuki Matsuoka , Yasushi Fukazawa , Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
IPC分类号： G01T3/06
CPC分类号： C09K11/7734 , C30B15/00 , C30B29/12 , G01T1/2008 , G01T3/06 , G21K4/00
摘要： [Problems to be Solved] A phoswich radiation detector, which can easily discriminate between detection signals on gamma rays and thermal neutrons, and which can selectively acquire signals on thermal neutrons, is provided.[Means to Solve the Problems] In a phoswich radiation detector having two scintillators and discriminating between thermal neutrons and gamma rays, the detector comprises a scintillator for detecting thermal neutrons, such as LiCaAlF6:Eu, which has a light yield of more than 1500 photons/neutron, and a scintillator for detecting gamma rays, which has a permeable end on a shorter wavelength than the light emission wavelength of the thermal neutron scintillator. The scintillator for detecting gamma rays is characterized by being either an organic solid scintillator, such as a plastic scintillator, which does not contain a total amount of 10 mol % or more of elements selected from 6Li, 10B and Gd, or an inorganic single crystal scintillator, such as lithium glass (containing 6Li and Ce) or BGO, which has an effective atomic number Zeff of 30 or larger and which does not contain a total amount of 10 mol % or more of elements selected from 6Li, 10B and Gd.
摘要翻译： [待解决的问题]提供了一种可以容易地区分伽马射线和热中子上的检测信号并且可以选择性地获取热中子信号的棱镜辐射探测器。 [解决问题的手段]在具有两个闪烁体并且区分热中子和γ射线的双射线辐射检测器中，检测器包括用于检测热中子的闪烁体，例如LiCaAlF 6：Eu，其具有大于1500个光子的光产量 /中子，以及用于检测伽马射线的闪烁体，其具有比热中子闪烁体的发光波长更短波长的可渗透端。 用于检测γ射线的闪烁体的特征在于：不含总量为10mol％以上的选自6Li，10B和Gd的元素的有机固体闪烁体，例如塑料闪烁体，或无机单晶 诸如具有30或更大的有效原子数Zeff的锂玻璃（含6Li和Ce）或BGO的闪烁体，其不含有选自6Li，10B和Gd的元素的总量的10mol％以上。
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公开(公告)号：US20130043402A1
公开(公告)日：2013-02-21
申请号：US13695088
申请日：2011-04-26
申请人： Kentaro Fukuda , Sumito Ishizu , Noriaki Kawaguchi , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota
发明人： Kentaro Fukuda , Sumito Ishizu , Noriaki Kawaguchi , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota
IPC分类号： G01T3/06
CPC分类号： G01T3/06 , C09K11/7733 , G21K4/00
摘要： [Problems to be Solved] A neutron scintillator excellent in neutron detection efficiency and n/γ discrimination ability, and a neutron detector using the neutron scintillator are provided.[Means to Solve the Problems] A neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the thickness of the lithium fluoride crystal layers in the eutectic body being 0.1 to 5 μm; or a neutron scintillator comprising a eutectic body composed of laminar lithium fluoride crystals and laminar calcium fluoride crystals alternately arranged in layers, the calcium fluoride crystal layers in the eutectic body being linearly continuous in at least one direction; and a neutron detector basically constructed from any of the neutron scintillators and a photodetector.[Selected Drawing] None
摘要翻译： [待解决的问题]提供了中子检测效率和n /γ辨别能力优异的中子闪烁体和使用中子闪烁体的中子检测器。 [解决问题的手段]包含由层状氟化锂晶体和层状氟化钙晶体构成的共晶体的中子闪烁体，层状交替排列，共晶体中的氟化锂晶体层的厚度为0.1〜5μm; 或包含交替排列成层状氟化锂晶体和层状氟化钙晶体的共晶体的中子闪烁体，所述共晶体中的氟化钙晶体层在至少一个方向上呈线性连续; 以及基本由中子闪烁体和光电检测器构成的中子探测器。 [已选图]无
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公开(公告)号：US09920243B2
公开(公告)日：2018-03-20
申请号：US14009047
申请日：2012-04-02
CPC分类号： C09K11/7733 , C09K11/772 , C09K11/7732 , G01T1/2023 , G01T3/06 , G21K4/00
摘要： The present invention aims at providing a scintillator for high temperature environments which has satisfactory light emission characteristics under high temperature environments; and a method for measuring radiation under high temperature environments. The scintillator for high temperature environments comprises a colquiriite-type crystal represented by the chemical formula LiM1M2X6 (where M1 is at least one alkaline earth metal element selected from Mg, Ca, Sr and Ba, M2 is at least one metal element selected from Al, Ga and Sc, and X is at least one halogen element selected from F, Cl, Br and I), for example, typified by LiCaAlF6, and the crystal optionally containing a lanthanoid element such as Ce or Eu. The method for measuring radiation under high temperature environments uses the scintillator.
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公开(公告)号：US20130320217A1
公开(公告)日：2013-12-05
申请号：US13985963
申请日：2012-03-08
申请人： Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
发明人： Noriaki Kawaguchi , Kentaro Fukuda , Toshihisa Suyama , Akira Yoshikawa , Takayuki Yanagida , Yui Yokota , Yutaka Fujimoto
IPC分类号： G01T3/06
CPC分类号： G01T3/06 , C09K11/7733 , C09K11/7734 , C30B15/00 , C30B29/12 , G21K4/00
摘要： The present invention is a neutron detection device comprising a neutron detection scintillator composed of a colquiriite-type fluoride single crystal, and a silicon photodiode, characterized in that the single crystal contains only Eu as a lanthanoid and contains 0.80 atom/nm3 or more of 6Li, the content of Eu is 0.0025 to 0.05 mol %, and the thickness of the scintillator exceeds 1 mm. The present invention provides a neutron detection device which has a sufficiently high neutron detection efficiency, is equipped with a neutron detection unit minimally affected by gamma rays, and is compact as a whole and lightweight.
摘要翻译： 本发明是一种中子检测装置，其特征在于，包括由阴离子型氟化物单晶构成的中子检测用闪烁体和硅光电二极管，其特征在于，所述单晶仅含有作为镧系元素的Eu，并含有0.30原子/ nm 3以上的6Li ，Eu的含量为0.0025〜0.05摩尔％，闪烁体的厚度超过1mm。 本发明提供了具有足够高的中子检测效率的中子检测装置，其具有最少受伽马射线影响的中子检测单元，并且整体紧凑且重量轻。
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