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1.发明公开PRETREATED METAL FLUORIDES AND PROCESS FOR PRODUCTION OF FLUORIDE CRYSTALS 审中-公开VORBEHANDELTE METALLFLUORIDE UND VERFAHREN ZUR HERSTELLUNG VON FLUORIDKRISTALLEN
公开(公告)号：EP2292555A1
公开(公告)日：2011-03-09
申请号：EP09746679.1
申请日：2009-05-15
CPC分类号： C01B9/08 , C01F17/0031 , C01G1/06 , C01P2002/84 , C01P2002/85 , C01P2004/04 , C01P2006/80 , C30B15/00 , C30B15/08 , C30B29/12 , C30B35/007
摘要： [Problem] To provide a method of producing a pretreated metal fluoride containing impurities such as oxygen in decreased amounts and a fluoride crystal containing impurities such as oxygen in decreased amounts and having excellent optical properties such as transparency.
[Means for Solution] A metal fluoride is heated in a temperature range of not lower than 300° K but not higher than 1780° K in the co-presence of a carbonyl fluoride of an amount of not less than 1/100 mol per mol of the metal fluoride to thereby obtain a pretreated metal fluoride while removing oxygen and water from the starting metal fluoride and from the interior of the production furnace. Further, the pretreated metal fluoride as a starting material is heated and melted, and a fluoride crystal of a high quality is obtained from the obtained melt by a crystal growing method such as a melt pull-up method or a melt pull-down method.摘要翻译： 本发明提供以减少的量生产含有氧等杂质的预处理金属氟化物的方法和含有少量杂质的氟化物结晶，并具有良好的透光性等光学性能。 [解决方案]金属氟化物在不低于300°K但不高于1780°K的温度范围内，在不少于1/100摩尔/摩尔量的碳酰氟的共存下加热 的金属氟化物，从而从起始金属氟化物和生产炉内部除去氧和水，从而获得预处理的金属氟化物。 此外，将作为起始原料的预处理金属氟化物加热熔融，通过熔融拉拔法或熔融拉拔法等晶体生长法从得到的熔液中得到高品质的氟化物结晶。
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公开(公告)号：EP2565682A1
公开(公告)日：2013-03-06
申请号：EP11775005.9
申请日：2011-04-26
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui
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]提供了优异的中子检测效率和n /³辨别能力的中子闪烁体以及使用中子闪烁体的中子检测器。 解决问题的手段一种中子闪烁体，其包含由层状氟化锂晶体和层状氟化钙晶体构成的共晶体，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检测器。
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公开(公告)号：EP2685286A1
公开(公告)日：2014-01-15
申请号：EP12754361.9
申请日：2012-03-08
发明人： KAWAGUCHI, Noriaki , FUKUDA, Kentaro , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , FUJIMOTO, Yutaka
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/nm 3 or more of 6 Li, 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，包含由铬绿石型氟化物单晶构成的中子检测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，且含有0.80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。 本发明提供一种中子检测装置，该中子检测装置具有足够高的中子检测效率，装备有受γ射线影响最小的中子检测单元，并且整体上紧凑并且重量轻。
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4.发明公开DEVICE FOR EMITTING VACUUM ULTRAVIOLET LIGHT 审中-公开VORRICHTUNG ZUR EMISSION VON VAKUUM-ULTRAVIOLETT-LICHT
公开(公告)号：EP2477210A1
公开(公告)日：2012-07-18
申请号：EP10813827.2
申请日：2010-09-06
申请人： National University Corporation Nagoya Institute of Technology , Tokuyama Corporation , Tohoku University
发明人： ONO, Shingo , SUYAMA, Toshihisa , FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , NAGAMI, Tomohito , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui
CPC分类号： H05B33/14 , C09K11/7773 , H01J29/20 , H01J63/06 , H05B33/145
摘要： [Problems to be Solved] The present invention aims to provide a novel light emitting device for ultraviolet light, in particular for vacuum ultraviolet light, which has rectified the drawbacks of the ultraviolet light emitting apparatus in current use, namely, the problems that the apparatus is large in size, consumes high power, is short in life, and has unstable strength.
[Means to Solve the Problems] A vacuum ultraviolet light emitting device comprising: a luminescence substrate which is composed of a transparent substrate of lithium fluoride, magnesium fluoride, calcium fluoride, barium fluoride or the like, and a metal fluoride thin-film layer formed on the transparent substrate and being a thin-film layer of a metal fluoride such as LuLiF 4 , LaF 3 , BaF 2 or CaF 2 , the metal fluoride being doped with atoms of neodymium (Nd), thulium (Tm), erbium (Er) or the like; and an electron beam source such as a thermionic emission gun or a field emission gun, wherein the luminescence substrate and the electron beam source are disposed in a vacuum atmosphere, and the metal fluoride thin-film layer is irradiated with electron beams from the electron beam source to emit light including wavelength components of vacuum ultraviolet light.摘要翻译： [待解决的问题]本发明的目的在于提供一种用于紫外光的新颖的发光装置，特别是用于真空紫外光的发光装置，其已经整流了目前使用的紫外线发射装置的缺点，即装置 体积大，功耗大，寿命短，强度不稳定。 解决问题的手段一种真空紫外线发光装置，其特征在于，包括：由氟化锂，氟化镁，氟化钙，氟化钡等的透明基板和形成的金属氟化物薄膜层构成的发光基板 在透明基板上，并且是诸如LuLiF 4，LaF 3，BaF 2或CaF 2的金属氟化物的薄膜层，金属氟化物掺杂有钕（Nd），ium（Tm），铒（Er ）等; 以及诸如热电子发射枪或场发射枪的电子束源，其中发光基板和电子束源设置在真空气氛中，并且金属氟化物薄膜层被来自电子束的电子束照射 源发射包括真空紫外光的波长分量的光。
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公开(公告)号：EP2256177B1
公开(公告)日：2016-01-13
申请号：EP09725054.2
申请日：2009-03-17
发明人： YOSHIKAWA, Akira , YANAGIDA, Takayuki , FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa
CPC分类号： G01T3/06 , C09K11/645 , G21K4/00
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6.发明公开NEUTRON BEAM DETECTOR, NEUTRON BEAM DETECTION SCINTILLATOR, AND METHOD FOR DISCRIMINATION BETWEEN NEUTRON BEAM AND BEAM 审中-公开中子束检测器，用于中子之间的射线和γ射线的区别闪烁体中子束检测和方法
公开(公告)号：EP2573590A1
公开(公告)日：2013-03-27
申请号：EP11783585.0
申请日：2011-05-18
发明人： WATANABE, Kenichi , YAMAZAKI, Atsushi , URITANI, Akira , KONDO, Yoshiyuki , KAWAGUCHI, Noriaki , FUKUDA, Kentaro , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , IGUCHI, Tetsuo
CPC分类号： G01T3/06 , C09K11/7734 , C30B15/00 , C30B29/12
摘要： Disclosed are: a neutron beam detector which comprises a material having low deliquescent properties and can discriminate between a neutron beam and a γ beam; a neutron beam detection scintillator; and a method for discriminating between a neutron beam and a γ beam. Specifically disclosed are: a neutron beam detection scintillator for use in the discrimination between a neutron beam and a γ beam based on the difference in waveforms of light detection signals, and which comprises Ce-containing LiCaAlF6 single crystals; a neutron beam detector which has a function of discriminating between a neutron beam and a γ beam based on the difference in waveforms of light detection signals from a neutron beam detection scintillator, and which is characterized by using a neutron beam detection scintillator comprising Ce-containing LiCaAlF6 single crystals as a neutron beam detection scintillator; and a method for discriminating between a neutron beam and a γ beam.
摘要翻译： 公开的是：中子束检测器，其包括具有低潮解性质并且可以中子束和光束³区分的材料; 中子束检测闪烁体; 和中子束和光束³区分的方法。 具体地说游离缺失盘是：用于在中子束和基于在光检测信号的波形的差的光束³之间的区分使用中子束检测闪烁体，并且其包含含Ce的LiCaAlF6单晶; 它是通过使用中子束检测闪烁体包括为特征的中子束检测器，它具有一个中子束并且基于来自中子束检测闪烁体中的光检测信号的波形的差的³光束之间进行鉴别的功能，并且所有含Ce LiCaAlF6晶体作为单个中子束检测闪烁体; 和中子束和光束³区分的方法。
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公开(公告)号：EP2256177A1
公开(公告)日：2010-12-01
申请号：EP09725054.2
申请日：2009-03-17
发明人： YOSHIKAWA, Akira , YANAGIDA, Takayuki , FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa
CPC分类号： G01T3/06 , C09K11/645 , G21K4/00
摘要： [Abstract] To provide a scintillator for neutron detection which has high sensitivity to neutron rays, and is reduced in a background noise attributed to γ rays.
[Means to Solve the Problems] A scintillator for neutron detection, comprising a metal fluoride crystal containing, as constituent elements, a metal having a valence of 2 or higher, such as calcium, aluminum or yttrium; lithium; and fluorine, the metal fluoride crystal containing 1.1 to 20 atoms per unit volume (atoms/nm 3 ) of 6 Li, having an effective atomic number of 10 to 40, containing a lanthanoid such as cerium, praseodymium or europium, and being represented by LiCaAlF 6 , LiSrAlF 6 , LiYF 4 , etc.摘要翻译： [摘要]提供了对中子射线具有高灵敏度的中子检测用闪烁体，并且由于³射线引起的背景噪声降低。 解决问题的手段一种中子检测用闪烁体，其特征在于，含有金属氟化物晶体，作为构成元素，含有2价以上的金属如钙，铝或钇; 锂; 氟，氟原子结晶含有每单位体积（原子/ nm 3）为1〜20个原子的6Li，6L的有效原子序数为10〜40，含有铈，镨，铕等镧系元素，由 LiCaAlF 6，LiSrAlF 6，LiYF 4等
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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
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui
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.
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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
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
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。
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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
发明人： FUKUDA, Kentaro , ISHIZU, Sumito , KAWAGUCHI, Noriaki , SUYAMA, Toshihisa , YOSHIKAWA, Akira , YANAGIDA, Takayuki , YOKOTA, Yui , KUBO, Hidetoshi , TANIMORI, Toru , SEKIYA, Hiroyuki
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。
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