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公开(公告)号：US07091490B2
公开(公告)日：2006-08-15
申请号：US10684413
申请日：2003-10-15
申请人： Keiji Sumiya , Hiroyuki Ishibashi , Hideo Murayama , Naoko Inadama , Takaji Yamashita , Tomohide Omura
发明人： Keiji Sumiya , Hiroyuki Ishibashi , Hideo Murayama , Naoko Inadama , Takaji Yamashita , Tomohide Omura
IPC分类号： G01T1/20
CPC分类号： G01T1/2928 , G01T1/2018
摘要： A depth of interaction detector with uniform pulse-height comprises a multi-layer scintillator obtained by coupling at least two scintillator cells on a plane and then stacking the planar coupled scintillator cells, in layers, up to at least two stages and a light-receiving element connected to the bottom face of each scintillator cell of this multi-layer scintillator, wherein the detector is provided with a means for discriminating the position of a scintillator cell, which receives radiant rays and emits light rays and a means for making, uniform, the quantity of the light emitted from each scintillator cell and received by the light-receiving element. The detector can provide precise detection information even when radiation is absorbed by and emitted from a scintillator layer positioned above the scintillator layer optically coupled to the light-receiving element, permits the production of a depth of interaction detector having a three-dimensional depth of interaction-detecting function and can provide the same total output signal, which is independent of the position or a specific scintillator cell practically emitting light if the radiation energy is identical.
摘要翻译： 具有均匀脉冲高度的相互作用检测器的深度包括通过在平面上耦合至少两个闪烁体单元然后层叠平面耦合的闪烁体单元达到至少两个阶段而获得的多层闪烁体，以及光接收 连接到该多层闪烁体的每个闪烁体单元的底面的元件，其中检测器设置有用于识别接收辐射线并发射光线的闪烁体单元的位置的装置，以及用于使均匀的， 从每个闪烁体单元发射并由光接收元件接收的光的量。 即使当辐射被位于与光接收元件光耦合的闪烁体层上方的闪烁器层吸收和发射时，检测器也可以提供精确的检测信息，允许产生具有三维相互作用深度的相互作用检测器的深度 - 检测功能并且可以提供与位置无关的相同的总输出信号，或者如果辐射能量相同则实际发射光的特定闪烁体单元。
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公开(公告)号：US20050087693A1
公开(公告)日：2005-04-28
申请号：US10684413
申请日：2003-10-15
申请人： Keiji Sumiya , Hiroyuki Ishibashi , Hideo Murayama , Naoko Inadama , Takaji Yamashita , Tomohide Omura
发明人： Keiji Sumiya , Hiroyuki Ishibashi , Hideo Murayama , Naoko Inadama , Takaji Yamashita , Tomohide Omura
CPC分类号： G01T1/2928 , G01T1/2018
摘要： A depth of interaction detector with uniform pulse-height comprises a multi-layer scintillator obtained by coupling at least two scintillator cells on a plane and then stacking the planar coupled scintillator cells, in layers, up to at least two stages and a light-receiving element connected to the bottom face of each scintillator cell of this multi-layer scintillator, wherein the detector is provided with a means for discriminating the position of a scintillator cell, which receives radiant rays and emits light rays and a means for making, uniform, the quantity of the light emitted from each scintillator cell and received by the light-receiving element. The detector can provide precise detection information even when radiation is absorbed by and emitted from a scintillator layer positioned above the scintillator layer optically coupled to the light-receiving element, permits the production of a depth of interaction detector having a three-dimensional depth of interaction-detecting function and can provide the same total output signal, which is independent of the position or a specific scintillator cell practically emitting light if the radiation energy is identical.
摘要翻译： 具有均匀脉冲高度的相互作用检测器的深度包括通过在平面上耦合至少两个闪烁体单元然后层叠平面耦合的闪烁体单元至多至少两个阶段而得到的多层闪烁器，以及光接收 连接到该多层闪烁器的每个闪烁体单元的底面的元件，其中检测器设置有用于识别接收辐射线并发射光线的闪烁体单元的位置的装置，以及用于使均匀的， 从每个闪烁体单元发射并由光接收元件接收的光的量。 即使当辐射被位于与光接收元件光耦合的闪烁体层上方的闪烁器层吸收和发射时，检测器也可以提供精确的检测信息，允许产生具有三维相互作用深度的相互作用检测器的深度 - 检测功能并且可以提供与位置无关的相同的总输出信号，或者如果辐射能量相同则实际发射光的特定闪烁体单元。
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3.发明申请Three-dimensional radiation position detector and method of identifying sensed positions therein 有权三维辐射位置检测器和识别其中感测位置的方法公开(公告)号：US20130056638A1
公开(公告)日：2013-03-07
申请号：US13636936
申请日：2010-03-29
申请人： Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
发明人： Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
IPC分类号： G01T1/164
CPC分类号： G01T1/1644
摘要： A three-dimensional position-sensitive radiation detector is provided which has a three-dimensional array of photodetectors disposed on the surface of a scintillator block and which is capable of three-dimensionally identifying the position of light emission at which radiation has been detected within the detector. The three-dimensional position-sensitive radiation detector includes: a scintillator block including a central portion which restricts the direction of diffusion of light so as to direct the light in three axial directions and which has an optically discontinuous region, and an outer portion which is disposed on the outside of the central portion and which does not restrict the direction of diffusion of light; and photodetectors disposed on at least two outer circumferential surfaces of the scintillator block. The detector identifies three-dimensionally the position of light emission, thereby preventing deterioration in position discrimination performance even when inner scintillator elements are smaller than the photodetectors.
摘要翻译： 提供了三维位置敏感的放射线检测器，其具有设置在闪烁体块的表面上的光电检测器的三维阵列，并且能够三维地识别已经在其内检测到辐射的发光的位置 探测器。 三维位置敏感型放射线检测器包括：闪烁体块，其包括限制光的扩散方向的中心部，以使光在三个轴向引导，并具有光学不连续区域;外部部分 设置在中心部分的外侧，并且不限制光的扩散方向; 以及设置在闪烁体块的至少两个外周表面上的光电检测器。 检测器三维地识别发光的位置，从而即使当内部闪烁体元件小于光电检测器时也防止位置判别性能的劣化。
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4.发明授权公开(公告)号：US08933410B2
公开(公告)日：2015-01-13
申请号：US13636936
申请日：2010-03-29
申请人： Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
发明人： Naoko Inadama , Hideo Murayama , Taiga Yamaya , Mitsuo Watanabe , Takahiro Moriya , Kenshi Fukumitsu , Tomohide Omura
CPC分类号： G01T1/1644
摘要： A three-dimensional position-sensitive radiation detector is provided which has a three-dimensional array of photodetectors disposed on the surface of a scintillator block and which is capable of three-dimensionally identifying the position of light emission at which radiation has been detected within the detector. The three-dimensional position-sensitive radiation detector includes: a scintillator block including a central portion which restricts the direction of diffusion of light so as to direct the light in three axial directions and which has an optically discontinuous region, and an outer portion which is disposed on the outside of the central portion and which does not restrict the direction of diffusion of light; and photodetectors disposed on at least two outer circumferential surfaces of the scintillator block. The detector identifies three-dimensionally the position of light emission, thereby preventing deterioration in position discrimination performance even when inner scintillator elements are smaller than the photodetectors.
摘要翻译： 提供了三维位置敏感的放射线检测器，其具有设置在闪烁体块的表面上的光电检测器的三维阵列，并且能够三维地识别已经在其内检测到辐射的发光的位置 探测器。 三维位置敏感型放射线检测器包括：闪烁体块，其包括限制光的扩散方向的中心部，以使光在三个轴向引导，并具有光学不连续区域;外部部分 设置在中心部分的外侧，并且不限制光的扩散方向; 以及设置在闪烁体块的至少两个外周表面上的光电检测器。 检测器三维地识别发光的位置，从而即使当内部闪烁体元件小于光电检测器时也防止位置判别性能的劣化。
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公开(公告)号：US07087905B2
公开(公告)日：2006-08-08
申请号：US10786366
申请日：2004-02-26
IPC分类号： G01T1/20
CPC分类号： G01T1/2008 , G01T1/1644
摘要： The radiation three-dimensional position detector of the present invention comprises a scintillator unit (10), a light receiving element (20) and an operation section (30). The scintillator unit is disposed on the light incident plane of the light receiving element, wherein the scintillator unit is comprised of four layers of scintillator arrays, each layer being composed of scintillator cells arrayed in 8 row −8 column matrix. The scintillator cell produces scintillation light corresponding to the radiation absorbed thereby. The optical characteristic of a partition material for separating neighboring scintillator cells, which faces at least one same side face is different between a scintillator cell Ck1,m,n included in one scintillator array layer (k1-th layer) and a scintillator cell Ck2,m,n included in the other scintillator array layer (k2-th layer).
摘要翻译： 本发明的辐射三维位置检测器包括闪烁体单元（10），光接收元件（20）和操作部分（30）。 闪烁体单元设置在光接收元件的光入射平面上，其中闪烁体单元由四层闪烁体阵列组成，每层由排列在8行-8列矩阵中的闪烁体单元组成。 闪烁体细胞产生对应于由此吸收的辐射的闪烁光。 用于分离面向至少一个相同侧面的相邻闪烁体单元的分隔材料的光学特性在一个闪烁体阵列层（k1-th）中包括的闪烁体单元C k1，m，n 层）和包含在另一个闪烁体阵列层（k2层）中的闪烁体单元C k2，m，n N。
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公开(公告)号：US20110101229A1
公开(公告)日：2011-05-05
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： G01T1/202
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。
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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。
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公开(公告)号：US20110121184A1
公开(公告)日：2011-05-26
申请号：US13054329
申请日：2008-07-16
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。
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公开(公告)号：US20110024637A1
公开(公告)日：2011-02-03
申请号：US12935016
申请日：2008-04-01
申请人： Taiga Yamaya , Hideo Murayama , Naoko Inadama
发明人： Taiga Yamaya , Hideo Murayama , Naoko Inadama
IPC分类号： G01T1/161
CPC分类号： G01T1/2985 , A61B6/037
摘要： In an open-type PET scanner, detector rings arranged in a multilayered manner in an axial direction are at least partially opened and the thus opened part of the detector rings is at least partially included in a main focus region. Then, at least some of the detecting elements constituting the detector ring are disposed obliquely in the axial direction so that the main sensitivity direction thereof is turned closer to the main focus region, increasing the resolution in the main focus region. Thereby, it is possible to retain resolution in the body axis direction without using a high-resolution DOI detector and to reduce the price of the open-type PET scanner.
摘要翻译： 在开放式PET扫描仪中，以轴向方向多层布置的检测器环至少部分地打开，并且检测器环的这样打开的部分至少部分地包括在主聚焦区域中。 然后，构成检测环的检测元件的至少一部分沿轴向倾斜地设置，使其主感光度方向靠近主聚焦区域，从而提高主聚焦区域中的分辨率。 因此，可以不使用高分辨率DOI检测器来保持体轴方向的分辨率，并且降低开放型PET扫描仪的价格。
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10.发明申请METHOD FOR DETECTING RADIATION, DEVICE THEREOF, AND POSITRON EMISSION TOMOGRAPHY SCANNER 有权用于检测辐射的方法，其装置和位置发射扫描仪公开(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
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。
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