公开(公告)号：US08436312B2

公开(公告)日：2013-05-07

申请号：US12999041

申请日：2008-10-08

申请人： Naoko Inadama ,  Hideo Murayama ,  Kengo Shibuya ,  Fumihiko Nishikido ,  Taiga Yamaya ,  Eiji Yoshida

发明人： Naoko Inadama ,  Hideo Murayama ,  Kengo Shibuya ,  Fumihiko Nishikido ,  Taiga Yamaya ,  Eiji Yoshida

IPC分类号： G01T1/20

CPC分类号： G01T1/1644 ,  G01T1/2008

摘要： This aims to provide a DOI type radiation detector in which scintillation crystals arranged two-dimensionally on a light receiving surface to form rectangular section groups in extending directions of the light receiving surface of a light receiving element are stacked up to make a three-dimensional arrangement and responses of the crystals that have detected radiation are made possible to identify at response positions on the light receiving surface, so that a three-dimensional radiation detection position can be obtained. In the DOI type radiation detector, scintillation crystals are right triangle poles extending upwards from the light receiving surface and the response positions on the light receiving surface are characterized. With this structure, DOI identification of a plurality of layers can be carried out by simply performing an Anger calculation of a light receiving element signal.

摘要翻译： 其目的在于提供一种DOI型放射线检测器，其中，在光接收表面上二维布置的闪烁晶体在光接收元件的光接收表面的延伸方向上形成矩形截面组，以形成三维布置 并且能够检测到辐射的晶体的响应可以在光接收表面上的响应位置处识别，从而可以获得三维辐射检测位置。 在DOI型辐射检测器中，闪烁晶体是从光接收表面向上延伸的直角三角形磁极，并且在光接收表面上的响应位置被表征。 利用这种结构，可以通过简单地执行光接收元件信号的愤怒计算来执行多个层的DOI识别。

公开(公告)号：US07105835B2

公开(公告)日：2006-09-12

申请号：US10451761

申请日：2002-07-16

申请人： Kengo Shibuya ,  Masanori Koshimizu ,  Yuko Takeoka ,  Keisuki Asai

发明人： Kengo Shibuya ,  Masanori Koshimizu ,  Yuko Takeoka ,  Keisuki Asai

IPC分类号： C09K11/08 ,  C09K11/06 ,  G01T1/00

CPC分类号： C09K11/664 ,  C09K11/06 ,  C09K2211/188

摘要： This invention provides a radiation detector using a scintillator having both a strong luminescence intensity and a short time constant. The radiation detector comprises as a scintillator an organic/inorganic perovskite hybrid compound represented by the general formula AMX3, wherein A is R—NH3 or R′—NH2, or a mixture thereof, R is a hydrogen atom or a methyl group which may be substituted by an amino group or a halogen atom, R′ is a methylene group which may be substituted by an amino group or a halogen atom, each X is a halogen atom that may be identical to or different from the other X groups, and M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd.

摘要翻译： 本发明提供一种使用具有强发光强度和短时间常数的闪烁体的放射线检测器。 辐射检测器包括作为闪烁体的由通式AMX 3 N表示的有机/无机钙钛矿杂化化合物，其中A是R-NH 3或R'-NH _{2个或它们的混合物，R是氢原子或可以被氨基或卤素原子取代的甲基，R'是可以被氨基取代的亚甲基或 卤素原子，每个X是可以与其它X基团相同或不同的卤素原子，M是Ⅳa族金属，Eu，Cd，Cu，Fe，Mn或Pd。}

公开(公告)号：US20110121184A1

公开(公告)日：2011-05-26

申请号：US13054329

申请日：2008-07-16

申请人： Naoko Inadama ,  Hideo Murayama ,  Kengo Shibuya ,  Fumihiko Nishikido ,  Tomoaki Tsuda

发明人： Naoko Inadama ,  Hideo Murayama ,  Kengo Shibuya ,  Fumihiko Nishikido ,  Tomoaki Tsuda

IPC分类号： G01T1/20

CPC分类号： G01T1/1644

摘要： In a DOI radiation detector, scintillation crystals are arranged in three dimensions on a light receiving surface of a light receiving element, and a response of a crystal having detected a radiation ray can be identified on the light receiving surface. Thereby, a position at which the radiation ray is detected is determined in three dimensions. In this DOI radiation detector, regular triangular prism scintillation crystals are used, and response positions of the respective crystals are shifted for each set. This allows crystal identification without loss even with a structure such as a three-layer or six-layer structure hard to achieve by a quadrangular prism scintillation crystal.

摘要翻译： 在DOI辐射检测器中，闪烁晶体三维地排列在光接收元件的光接收表面上，并且可以在光接收表面上识别检测到辐射线的晶体的响应。 由此，三维地确定检测出放射线的位置。 在该DOI辐射检测器中，使用规则的三角棱镜闪烁晶体，并且各组晶体的响应位置相互偏移。 即使采用四棱镜闪烁晶体难以达到的三层或六层结构等结构，也可以进行晶体识别。

公开(公告)号：US20110001049A1

公开(公告)日：2011-01-06

申请号：US12919358

申请日：2008-04-09

申请人： Kengo Shibuya ,  Taiga Yamaya ,  Naoko Inadama ,  Fumihiko Nishikido ,  Eiji Yoshida ,  Hideo Murayama

发明人： Kengo Shibuya ,  Taiga Yamaya ,  Naoko Inadama ,  Fumihiko Nishikido ,  Eiji Yoshida ,  Hideo Murayama

IPC分类号： G01T1/20 ,  G01T1/161

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A light receiver for detecting incident time is installed on the side of a radiation source of a scintillator (including a Cherenkov radiation emitter), and information (energy, incident time, an incident position, etc.) on radiation made incident into the scintillator is obtained by the output of the light receiver. It is, thereby, possible to identify an incident position and others of radiation into the scintillator at high accuracy.

摘要翻译： 用于检测入射时间的光接收器安装在闪烁体（包括切伦科夫辐射发射器）的辐射源的一侧，并且入射到闪烁体中的辐射的信息（能量，入射时间，入射位置等）是 通过光接收器的输出获得。 因此，可以以高精度将入射位置和其他辐射识别到闪烁体中。

公开(公告)号：US20100032574A1

公开(公告)日：2010-02-11

申请号：US12450529

申请日：2007-08-30

申请人： Eiji Yoshida ,  Kengo Shibuya ,  Taiga Yamaya ,  Hideo Murayama ,  Keishi Kitamura

发明人： Eiji Yoshida ,  Kengo Shibuya ,  Taiga Yamaya ,  Hideo Murayama ,  Keishi Kitamura

IPC分类号： G01T1/20 ,  G01T1/164

CPC分类号： G01T1/2985 ,  A61B6/037 ,  G01T1/1647

摘要： Upon detection of radiation by using a (three-dimensional) detector capable of distinguishing a detection position in a depth direction and energy, an energy window for distinguishing between a signal and noise is changed depending on the detection position in the depth direction, thus making it possible to obtain scattering components inside the detector. Alternatively, a weight is given to a detection event depending on the detection position in the depth direction and energy information to obtain scattering components inside the detector. Thereby, scattering components inside the detector can be obtained to increase the sensitivity of the detector. In this case, different detecting elements can be used depending on the detection position in the depth direction.

摘要翻译： 通过使用能够区分深度方向的检测位置和能量的（三维）检测器来检测辐射，根据深度方向上的检测位置来改变用于区分信号和噪声的能量窗口，从而使 可能在检测器内部获得散射成分。 或者，根据深度方向上的检测位置和能量信息给予检测事件的权重，以获得检测器内部的散射成分。 因此，可以获得检测器内部的散射分量，以提高检测器的灵敏度。 在这种情况下，根据深度方向的检测位置，可以使用不同的检测元件。

公开(公告)号：US06787250B2

公开(公告)日：2004-09-07

申请号：US10182924

申请日：2002-07-29

申请人： Kengo Shibuya ,  Masanori Koshimizu ,  Yuko Takeoka ,  Keisuke Asai

发明人： Kengo Shibuya ,  Masanori Koshimizu ,  Yuko Takeoka ,  Keisuke Asai

IPC分类号： G01T120

CPC分类号： G01T1/2018

摘要： This invention relates to a radiation detection device for detecting ionizing beam discharges such as gamma rays, x-rays, electron beams, charged particle beams and neutral particle beams. Specifically, it relates to a radiation detection device which can measure radiations which exist for a very short time (of the order of subnanoseconds or less) from the appearance of photoemission to extinction. It is an object of this invention to provide a radiation detection device using a perovskite organic-inorganic hybrid compound as a scintillator, the formula of this compound being (R1—NR113)2MX4 or (R2═NR122)2MX4, or alternatively, (NR133—R3—NR133)MX4 or (NR142═R4═NR142)MX4 (in the formula, R1 is a monovalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R2 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, and may be cyclic, R3 is a divalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R4 is a tetravalent hydrocarbon group which may contain a heterocyclic ring and may be substituted by halogen atoms, R11-R14 may be identical or different, and may be hydrogen atoms or alkyl groups having two or more atoms, M is a Group IVa metal, Eu, Cd, Cu, Fe, Mn or Pd, and X is a halogen atom). This radiation detection device can quantify the radiation amount of the detected radiation.

摘要翻译： 本发明涉及一种用于检测诸如γ射线，X射线，电子束，带电粒子束和中性粒子束的电离束放电的放射线检测装置。 具体地说，本发明涉及一种放射线检测装置，该放射线检测装置可以测量从光照发射到消光的非常短的时间（亚纳秒级以下）存在的辐射。本发明的目的是提供一种辐射检测装置 使用钙钛矿有机 - 无机杂化化合物作为闪烁体，该化合物的化学式为（R 1 -NR 11）2 M 2或（R 2 = NR 12）2 X 2，或者， NR 13 R 3或-NR 14 R 3 =（NR 14）= NR 4 = NR 14）MX 4（式中，R 1为单价 可以含有杂环并且可以被卤素原子取代的烃基，R 2是可以含有杂环并且可以被卤素原子取代的二价烃基，并且可以是环状，R 3是 可以含有杂环并且可以被卤素原子取代的二价烃基，R 4是可以含有杂环的四价烃基，并且可被ha取代 碱原子，R 11 -R 14可以相同或不同，可以是氢原子或具有两个或多个原子的烷基，M是Ⅳa族金属，Eu，Cd，Cu，Fe，Mn或Pd ，X为卤素原子）。 该放射线检测装置能够量化检测出的放射线的辐射量。

公开(公告)号：US09029789B2

公开(公告)日：2015-05-12

申请号：US12919358

申请日：2008-04-09

申请人： Kengo Shibuya ,  Taiga Yamaya ,  Naoko Inadama ,  Fumihiko Nishikido ,  Eiji Yoshida ,  Hideo Murayama

发明人： Kengo Shibuya ,  Taiga Yamaya ,  Naoko Inadama ,  Fumihiko Nishikido ,  Eiji Yoshida ,  Hideo Murayama

IPC分类号： G01T1/202 ,  G01T1/29

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A light receiver for detecting incident time is installed on the side of a radiation source of a scintillator (including a Cherenkov radiation emitter), and information (energy, incident time, an incident position, etc.) on radiation made incident into the scintillator is obtained by the output of the light receiver. It is, thereby, possible to identify an incident position and others of radiation into the scintillator at high accuracy.

摘要翻译： 用于检测入射时间的光接收器安装在闪烁体（包括切伦科夫辐射发射器）的辐射源的一侧，并且入射到闪烁体中的辐射的信息（能量，入射时间，入射位置等）是 通过光接收器的输出获得。 因此，可以以高精度将入射位置和其他辐射识别到闪烁体中。

公开(公告)号：US07671339B2

公开(公告)日：2010-03-02

申请号：US11658699

申请日：2006-12-25

申请人： Kengo Shibuya ,  Tomoaki Tsuda ,  Fumihiko Nishikido ,  Naoko Inadama ,  Eiji Yoshida ,  Taiga Yamaya ,  Hideo Murayama

发明人： Kengo Shibuya ,  Tomoaki Tsuda ,  Fumihiko Nishikido ,  Naoko Inadama ,  Eiji Yoshida ,  Taiga Yamaya ,  Hideo Murayama

IPC分类号： G01T1/164 ,  G01T1/166

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A positron emission tomography (PET) scanner is provided which uses information on the time-of-flight difference (TOF) between annihilation radiations for image reconstruction. The scanner has detection time correction information (memory) corresponding to information on coordinates in a radiation detection element (e.g., scintillator crystal), in the depth and lateral directions, at which an interaction has occurred between an annihilation radiation and the crystal. Reference is made to the detection time correction information, thereby providing information on time-of-flight difference with improved accuracy. As such, an improved signal to noise ratio and spatial resolution are provided for image reconstruction using time-of-flight (TOF) difference.

摘要翻译： 提供了一种正电子发射断层扫描仪（PET）扫描仪，其使用关于图像重建的湮灭辐射之间的飞行时间差（TOF）的信息。 扫描仪具有与在湮灭辐射与晶体之间发生相互作用的深度和横向上的放射线检测元件（例如，闪烁体晶体）中的坐标信息相对应的检测时间校正信息（存储器）。 参考检测时间校正信息，从而提供关于飞行时间差异的信息，提高精度。 因此，为使用飞行时间（TOF）差异的图像重建提供了改善的信噪比和空间分辨率。

公开(公告)号：US20090159804A1

公开(公告)日：2009-06-25

申请号：US11658699

申请日：2006-12-25

申请人： Kengo Shibuya ,  Tomoaki Tsuda ,  Fumihiko Nishikido ,  Naoko Inadama ,  Eiji Yoshida ,  Taiga Yamaya ,  Hideo Murayama

发明人： Kengo Shibuya ,  Tomoaki Tsuda ,  Fumihiko Nishikido ,  Naoko Inadama ,  Eiji Yoshida ,  Taiga Yamaya ,  Hideo Murayama

IPC分类号： G01T1/164

CPC分类号： G01T1/2985 ,  A61B6/037

摘要： A positron emission tomography (PET) scanner is provided which uses information on the time-of-flight difference (TOF) between annihilation radiations for image reconstruction. The scanner has detection time correction information (memory) corresponding to information on coordinates in a radiation detection element (e.g., scintillator crystal), in the depth and lateral directions, at which an interaction has occurred between an annihilation radiation and the crystal. Reference is made to the detection time correction information, thereby providing information on time-of-flight difference with improved accuracy. As such, an improved signal to noise ratio and spatial resolution are provided for image reconstruction using time-of-flight (TOF) difference.

摘要翻译： 提供了一种正电子发射断层扫描仪（PET）扫描仪，其使用关于图像重建的湮灭辐射之间的飞行时间差（TOF）的信息。 扫描仪具有与在湮灭辐射与晶体之间发生相互作用的深度和横向上的放射线检测元件（例如，闪烁体晶体）中的坐标信息相对应的检测时间校正信息（存储器）。 参考检测时间校正信息，从而提供关于飞行时间差异的信息，提高精度。 因此，为使用飞行时间（TOF）差异的图像重建提供了改善的信噪比和空间分辨率。

公开(公告)号：US20080099684A1

公开(公告)日：2008-05-01

申请号：US10584985

申请日：2005-01-12

申请人： Hidetoshi Murakami ,  Kengo Shibuya ,  Haruo Saito ,  Keisuke Asai ,  Tsuneo Honda

发明人： Hidetoshi Murakami ,  Kengo Shibuya ,  Haruo Saito ,  Keisuke Asai ,  Tsuneo Honda

IPC分类号： G01T1/202

CPC分类号： G01T1/20 ,  G01T1/2023

摘要： To present a scintillation crystal containing a fluorescent component with excellent luminous efficiency and short decay time while the wavelength of the emitted light being in the visible light region or very near the visible light region and a radiation detection device using the scintillation crystal having an excellent timing resolution capability.Barium chloride (BaCl2) is used as the scintillation crystal. A radiation detection device comprising a barium chloride (BaCl2) crystal as a scintillator and a photomultiplier tube to receive the light from the scintillator wherein the wavelength of the light emitted from the scintillator is between 250 nm and 350 nm and the scintillator is located in a low humidity atmosphere.

摘要翻译： 为了呈现包含具有优异的发光效率和短的衰减时间的荧光成分的闪烁晶体，而发射的光的波长在可见光区域或非常接近可见光区域，并且使用闪烁晶体的放射线检测装置具有优异的定时 分辨能力。 氯化钡（BaCl 2 H 2）用作闪烁晶体。 一种辐射检测装置，包括作为闪烁体的氯化钡（BaCl 2 N 2）晶体和用于接收来自闪烁体的光的光电倍增管，其中从闪烁体发射的光的波长为250nm至350nm nm，闪烁体位于低湿度的气氛中。