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1. 发明授权

EP2565682B1 SCINTILLATOR FOR NEUTRONS AND NEUTRON DETECTOR 有权
公开(公告)号：EP2565682B1
公开(公告)日：2018-05-23
申请号：EP11775005.9
申请日：2011-04-26
申请人： Tokuyama Corporation , Tohoku University
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui
IPC分类号： G01T3/06 , C09K11/00 , C09K11/61
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/³ 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.

2. 发明公开

EP2653517A1 SCINTILLATOR FOR NEUTRONS, AND NEUTRON DETECTOR 有权
标题翻译：新疆维吾尔自治区中东地区
公开(公告)号：EP2653517A1
公开(公告)日：2013-10-23
申请号：EP11848688.5
申请日：2011-12-15
申请人： Tokuyama Corporation , Tohoku University
发明人： YAMANE, Hisanori , KAWANO, Tetsuya , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka , FUKUDA, Kentaro , KAWAGUCHI, Noriaki
IPC分类号： C09K11/00 , C09K11/63 , C09K11/68 , G01T3/06
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，并且几乎不受来自三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含含有至少Mg和二价过渡元素的硼酸盐。

3. 发明公开

EP2636646A1 METAL FLUORIDE EUTECTIC, SCINTILLATOR FOR NEUTRONS, AND NEUTRON IMAGING DEVICE 有权
标题翻译： EUTEKTISCHERMETALLFLUORIDKÖRPER，NEUTRONENSZINTILLATOR UND NEUTRONENABBILDUNGSVORRICHTUNG
公开(公告)号：EP2636646A1
公开(公告)日：2013-09-11
申请号：EP11838045.0
申请日：2011-11-01
申请人： Tokuyama Corporation , Tohoku University
发明人： FUKUDA, Kentaro , KAWAGUCHI, Noriaki , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
IPC分类号： C01F11/22 , C09K11/00 , C09K11/61 , G01T1/202 , G01T3/06
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 Ca 1-x Sr x F 2 (where x denotes a number greater than 0, but not larger than 1), such as SrF 2 or Ca 0.5 Sr 0.5 F 2 , 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，S / N比和n /³辨别能力优异的中子闪烁体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，其中氟化锂结晶相和由化学式Ca 1-x Sr x F 2表示的结晶相（其中x表示大于0，但不大于 1）如SrF 2或Ca 0.5 Sr 0.5 F 2以相分离的状态存在; 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。

4. 发明公开

EP2597490A1 PHOSWICH THERMAL NEUTRON DETECTOR 审中-公开
标题翻译： PHOSWICH-WÄRMENEUTRONENDETEKTOR
公开(公告)号：EP2597490A1
公开(公告)日：2013-05-29
申请号：EP11809676.7
申请日：2011-07-20
申请人： Hiroshima University , Tokuyama Corporation , Tohoku University
发明人： TAKAHASHI, Hiromitsu , YONETANI, Mitsuo , MATSUOKA, Masayuki , FUKAZAWA, Yasushi , KAWAGUCHI, Noriaki , FUKUDA, Kentaro , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
IPC分类号： G01T3/06 , C09K11/00 , C09K11/64 , G01T1/202
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 LiCaAlF 6 :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 6 Li, 10 B and Gd, or an inorganic single crystal scintillator, such as lithium glass (containing 6 Li and Ce) or BGO, which has an effective atomic number Z eff of 30 or larger and which does not contain a total amount of 10 mol% or more of elements selected from 6 Li, 10 B and Gd.
摘要翻译： [待解决的问题]提供了一种能够容易地区分伽马射线和热中子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检测器。 [解决问题的手段]在具有两个闪烁体并且识别热中子和伽马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，其光产量大于1500 光子/中子和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的波长的可渗透端。用于检测γ射线的闪烁体的特征在于是有机固体闪烁体，例如塑料闪烁体，其不含总量为10mol％或更多的选自6Li，10B和Gd的元素，或无机物单晶闪烁体，如具有30或更大的有效原子数Z eff的锂玻璃（含6 Li和Ce）或BGO，不含总量为10mol％以上的元素，选自6Li ，10 B和Gd。

5. 发明公开

EP2416176A1 RADIOGRAPHIC IMAGE DETECTOR 审中-公开
标题翻译： RÖNTGENBILDDETEKTOR
公开(公告)号：EP2416176A1
公开(公告)日：2012-02-08
申请号：EP10758456.7
申请日：2010-03-19
申请人： Tokuyama Corporation , Tohoku University , Kyoto University , The University of Tokyo
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , KUBO, Hidetoshi , TANIMORI, Toru , SEKIYA, Hiroyuki
IPC分类号： G01T1/18 , G01T1/20 , H01J31/50
CPC分类号： G01T1/28 , H01J31/49 , H01J47/02
摘要： [Problems to be Solved] It is an object of the present invention to provide a novel radiographic image detector which can detect radiation, such as hard X-rays or γ-rays, with high sensitivity and which is excellent in position resolution and count rate characteristic.
[Means to Solve the Problems] A radiographic image detector comprises a combination of a scintillator, such as a lanthanum fluoride crystal containing neodymium, for converting incident radiation into ultraviolet rays; and a gas multiplication ultraviolet image detector for converting ultraviolet rays into electrons, amplifying such electrons by use of a gas electron avalanche phenomenon, and detecting the electrons. The radiographic image detector is characterized in that the gas multiplication ultraviolet image detector is basically constituted by a photoelectric conversion substance, such as cesium iodide or cesium telluride, for converting ultraviolet rays into electrons; a gas electron multiplier for amplifying electrons by use of the gas electron avalanche phenomenon; and a pixel electrode having an amplification function and a detection function.
摘要翻译： [待解决的问题]本发明的目的是提供一种能够以高灵敏度检测诸如硬X射线或³射线等辐射的新型放射线图像检测器，其位置分辨率和计数率优异特性。解决问题的手段放射线图像检测器包括闪烁体，例如含有钕的氟化镧晶体，用于将入射辐射转换为紫外线的组合; 以及用于将紫外线转换成电子的气体倍增紫外线图像检测器，利用气体电子雪崩现象来放大这些电子，并检测电子。射线照相图像检测器的特征在于，气相色谱紫外图像检测器基本上由诸如碘化铯或碲化铯的光电转换物质构成，用于将紫外线转换成电子; 用于通过使用气体电子雪崩现象来放大电子的气体电子倍增器; 以及具有放大功能和检测功能的像素电极。

6. 发明公开

EP2112529A1 RADIATION DETECTOR AND METHOD FOR DETECTING RADIATION 审中-公开
标题翻译： STRAHLUNGSDETEKTOR UND STRAHLUNGSDETEKTIONSVERFAHREN
公开(公告)号：EP2112529A1
公开(公告)日：2009-10-28
申请号：EP08720793.2
申请日：2008-02-15
申请人： Tokuyama Corporation , The University of Tokyo , Tohoku University
发明人： TAKAHASHI, Hiroyuki , YOSHIKAWA, Akira , SIMURA, Rayko , FUKUDA, Kentaro , SUYAMA, Toshihisa
IPC分类号： G01T1/185 , G01T1/20 , G01T1/202
CPC分类号： G01T1/2935
摘要： A radiation detection apparatus comprising a scintillator composed of a lanthanum fluoride crystal containing neodymium or a lithium barium fluoride crystal containing neodymium, for converting incident radiation into ultraviolet ray and a micro-strip gas chamber for converting the incident ultraviolet ray into an electric signal and capable of extracting the radiation as an electric signal.
The radiation detection apparatus which has excellent spatial resolution and can detect even a high-energy photon at high sensitivity is provided at low cost.
摘要翻译：一种辐射检测装置，包括由含有钕的氟化镧晶体或含有钕的氟化锂的晶体组成的闪烁体，用于将入射的辐射转换为紫外线;以及微带气体室，用于将入射的紫外线转换为电信号，提取辐射作为电信号。具有优异的空间分辨率并且甚至可以以高灵敏度检测高能量光子的辐射检测装置以低成本提供。

7. 发明公开

EP2679652A1 SCINTILLATOR FOR NEUTRON DETECTION, AND NEUTRON RADIATION DETECTOR 审中-公开
标题翻译：新疆维吾尔自治区人民解放军
公开(公告)号：EP2679652A1
公开(公告)日：2014-01-01
申请号：EP12749292.4
申请日：2012-02-24
申请人： Tokuyama Corporation , Tohoku University
发明人： KAWAGUCHI, Noriaki , FUKUDA, Kentaro , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
IPC分类号： C09K11/00 , C09K11/64 , C30B29/12 , G01T1/20 , G01T1/202 , G01T3/06
CPC分类号： G01T3/06 , C09K11/613 , C09K11/7732 , C30B15/00 , C30B29/12 , G21K4/00
摘要： To develop a novel scintillator for neutron detection that 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 comprising 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/nm 3 or more 6 Li, and being shaped such that the thickness in the thickest part exceeds 1 mm.
摘要翻译：为了开发中子探测的新型闪烁体，其能够增加使用具有比热中子更高的能量的超热中子诱导核反应的可能性，这是由于中子辐射入射方向上的厚度增加而导致的。一种用于中子检测的闪烁体，其包含含有0.0025摩尔％以上且小于0.05摩尔％的含有0.80原子/ nm 3以上6 Li以上的铕的含有铕的阴离子型氟化物单晶，并且成形为使得最厚部分超过1毫米。

8. 发明公开

EP2597489A1 RADIATION DETECTOR 审中-公开
标题翻译：辐射探测器
公开(公告)号：EP2597489A1
公开(公告)日：2013-05-29
申请号：EP11809675.9
申请日：2011-07-20
申请人： Hiroshima University , Tokuyama Corporation , Tohoku University
发明人： TAKAHASHI, Hiromitsu , YONETANI, Mitsuo , MATSUOKA, Masayuki , FUKAZAWA, Yasushi , KAWAGUCHI, Noriaki , FUKUDA, Kentaro , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
IPC分类号： G01T1/20 , C09K11/00 , G01T1/202 , C09K11/06 , C09K11/80
CPC分类号： H01L31/02322 , C09K11/06 , C09K11/7734 , C30B15/00 , C30B15/08 , C30B29/12 , G01T1/2018
摘要： [Problems to be Solved] A radiation detector, which is improved in the detection efficiency of a photodetector for light emitted by a scintillator, which has excellent long-term operational stability, and which is excellent in time resolution and count rate characteristics, is provided with the use of the scintillator with a short fluorescence lifetime.
[Means to Solve the Problems] A radiation detector is constructed by installing an optical wavelength conversion layer, which is composed of, for example, an organic fluorescent substance using polyvinyl toluene as a base material, between a scintillator composed of a fluoride single crystal, such as a Ce-containing LiCaAlF 6 crystal, and a photodetector having a light entrance window material composed of a transparent glass material such as borosilicate glass. In the radiation detector, the peak wavelength of light emitted by the scintillator is 360 nm or less, and the peak wavelength of light after conversion by the optical conversion layer is 400 nm or more. Preferably, the refractive indexes of the scintillator and the optical wavelength conversion layer are both 1.35 to 1.65.
摘要翻译： [待解决的问题]提供一种辐射探测器，其具有改进的用于由闪烁体发射的光的探测效率，其具有优异的长期操作稳定性，并且具有时间分辨率和计数率特性优异的辐射探测器使用荧光寿命短的闪烁体。解决问题的手段辐射检测器通过在由氟化物单晶构成的闪烁体之间安装光波长转换层而构成，所述光波长转换层例如由聚乙烯甲苯作为基材的有机荧光物质构成，如含Ce的LiCaAlF 6晶体，以及具有由硼硅酸盐玻璃等透明玻璃材料构成的光入射窗材料的光检测器。在放射线检测器中，由闪烁体发出的光的峰值波长为360nm或更小，并且由光学转换层转换后的光的峰值波长为400nm或更大。优选地，闪烁体和光学波长转换层的折射率均为1.35至1.65。

9. 发明公开

EP2439252A1 SCINTILLATOR 审中-公开
标题翻译： SZINTILLATOR
公开(公告)号：EP2439252A1
公开(公告)日：2012-04-11
申请号：EP10783368.3
申请日：2010-06-01
申请人： Tokuyama Corporation , Tohoku University
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui
IPC分类号： C09K11/85 , C09K11/00 , G01T1/20
CPC分类号： G21K4/00 , C09K11/7773 , C30B15/08 , C30B29/12 , G21K2004/06
摘要： [Problems to be Solved] The present invention aims to provide a scintillator which can detect photons of high energy, such as hard X-rays or γ-rays, with high sensitivity.
[Means to Solve the Problems] A scintillator comprises lithium lutetium fluoride containing neodymiumas a luminescence center, the lithium lutetium fluoride being represented by the chemical formula LiLu 1-x Nd x F 4 where x is in the range of 0.00001 to 0.2, preferably, 0.0001 to 0.05. Preferably, the scintillator comprises a single crystal of the lithium lutetium fluoride containing neodymium.
摘要翻译： [待解决的问题]本发明的目的在于提供一种可以高灵敏度地检测诸如硬X射线或³射线的高能量的光子的闪烁体。 [解决问题的方法]闪烁体包含含有发光中心的钕的氟化锂镥，氟化锂锂由化学式LiLu 1-x Nd x F 4表示，其中x在0.00001至0.2的范围内， 0.0001〜0.05。优选地，闪烁体包括含有钕的氟化锂镥的单晶。

10. 发明授权

EP2636646B1 METAL FLUORIDE EUTECTIC, SCINTILLATOR FOR NEUTRONS, AND NEUTRON IMAGING DEVICE 有权
标题翻译：共晶金属氟化物BODY NEUTRONENSZINTILLATOR和中子成像装置
公开(公告)号：EP2636646B1
公开(公告)日：2017-04-12
申请号：EP11838045.0
申请日：2011-11-01
申请人： Tokuyama Corporation , Tohoku University
发明人： FUKUDA, Kentaro , KAWAGUCHI, Noriaki , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
IPC分类号： C01F17/00 , C01D3/02 , C01F11/22 , C09K11/00 , C09K11/61 , G01T3/06 , G21K4/00 , C30B29/12 , C01D15/04 , C30B21/00 , C09K11/77
CPC分类号： C09K11/616 , C09K11/772 , C30B21/00 , C30B29/12 , G01T3/06 , G21K4/00 , G21K2004/06

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