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。

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。

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。

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。

公开(公告)号：EP2312644A1

公开(公告)日：2011-04-20

申请号：EP09802990.3

申请日：2009-07-29

申请人： National University Corporation Nagoya Institute of Technology ,  Tokuyama Corporation

发明人： ONO, Shingo ,  KAWAGUCHI, Noriaki ,  FUKUDA, Kentaro ,  SUYAMA, Toshihisa

IPC分类号： H01L31/0264 ,  G01J1/02

CPC分类号： H01L31/09 ,  G01J1/429 ,  H01L31/032

摘要： [Problems to be Solved] To provide a novel ultraviolet light receiving element which is selectively sensitive to ultraviolet radiation, and a method for measuring the dose of ultraviolet radiation using the ultraviolet light receiving element. [Means to Solve the Problems] An ultraviolet detecting layer composed of a thin film of a metal fluoride, such as cerium fluoride, lithium fluoride, magnesium fluoride or calcium fluoride, is formed on a substrate of silica glass, sapphire or the like. Further, at least a pair of an anode and a cathode are formed on the ultraviolet detecting layer to prepare an ultraviolet light receiving element. This ultraviolet light receiving element changes in electric resistivity in accordance with the dose of incident ultraviolet radiation. Thus, the dose of ultraviolet radiation can be measured by taking out and measuring the change as an electric signal.

摘要翻译： 为了提供对紫外线有选择性地敏感的新型紫外线受光元件以及使用该紫外线受光元件来测定紫外线的照射量的方法。 解决问题的手段在石英玻璃，蓝宝石等的基板上形成由氟化铈，氟化锂，氟化镁或氟化钙等金属氟化物薄膜构成的紫外线检测层。 此外，在紫外检测层上形成至少一对阳极和阴极以制备紫外光接收元件。 该紫外光接收元件根据入射的紫外线辐射的剂量改变电阻率。 因此，可以通过取出并测量作为电信号的变化来测量紫外辐射剂量。