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    RADIOGRAPHIC IMAGE DETECTOR
    1.
    发明公开
    RADIOGRAPHIC IMAGE DETECTOR 审中-公开
    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。

    RADIATION DETECTOR AND METHOD FOR DETECTING RADIATION
    2.
    发明公开
    RADIATION DETECTOR AND METHOD FOR DETECTING RADIATION 审中-公开
    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。

    RADIATION DETECTOR
    4.
    发明公开
    RADIATION DETECTOR 审中-公开
    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。

    SCINTILLATOR
    5.
    发明公开
    SCINTILLATOR 审中-公开
    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。

    SCINTILLATOR FOR NEUTRONS AND NEUTRON DETECTOR
    8.
    发明公开
    SCINTILLATOR FOR NEUTRONS AND NEUTRON DETECTOR 有权
    新疆维吾尔自治区中东地区

    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

    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/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。