公开(公告)号：US06859607B2

公开(公告)日：2005-02-22

申请号：US10663692

申请日：2003-09-17

Applicant: Hiroshi Sugihara

Inventor： Hiroshi Sugihara

IPC: G01T1/20 ,  G01T5/08 ,  G02B6/036 ,  G02B6/44 ,  G02B6/00

CPC classification number: G02B6/03694 ,  G01T1/20 ,  G01T1/201 ,  G02B6/02033 ,  G02B6/02395 ,  G02B6/4432

Abstract: The present invention provides an optical fiber, an optical fiber cable and a radiation detecting system at a low cost. Further, the radiation detecting system is provided which can adequately monitor the radiation leak without delay. The optical fiber cable comprises: an optical fiber including; a core 12 having lightwave guide property and extending along one direction; a clad layer 14 covering over a peripheral surface of the core 12; and a scintillator material dispersed in the clad layer 14 and emitting light when radiation is applied, a radiation-shielding layer 24 covering substantially over a periphery of the optical fiber10, and a gap 26 located in at least one part of the radiation-shielding layer 24. The radiation detecting system comprises an optical fiber cable 20 adapted to emit light at a region where radiation is applied and transmitting the emitted light, photoelectric conversion means 32 connected to at least one end of the optical fiber cable 20, and processing means 38 detecting when radiation is applied in accordance with an output signal of the photoelectric conversion means 32.

Abstract translation: 本发明以低成本提供光纤，光纤电缆和放射线检测系统。 此外，提供能够不延迟地适当地监视辐射泄漏的放射线检测系统。 光缆包括：光纤，包括： 具有光波导性并且沿一个方向延伸的芯12; 覆盖在芯12的外周表面上的覆层14; 以及分散在包覆层14中并在辐射被照射时发光的闪烁体材料，覆盖在光纤10的周边基本上覆盖的辐射屏蔽层24以及位于辐射屏蔽层的至少一部分中的间隙26 该放射线检测系统包括：光纤电缆20，其适于在施加辐射的区域发射光并透射发射的光;连接到光纤电缆20的至少一端的光电转换装置32;以及处理装置38 根据光电转换装置32的输出信号检测何时施加辐射。

公开(公告)号：US20040071433A1

公开(公告)日：2004-04-15

申请号：US10663692

申请日：2003-09-17

Applicant: WIRED JAPAN CO., LTD.

Inventor： Hiroshi Sugihara

IPC: G02B006/00

CPC classification number: G02B6/03694 ,  G01T1/20 ,  G01T1/201 ,  G02B6/02033 ,  G02B6/02395 ,  G02B6/4432

Abstract: The present invention provides an optical fiber, an optical fiber cable and a radiation detecting system at a low cost. Further, the radiation detecting system is provided which can adequately monitor the radiation leak without delay. The optical fiber cable comprises: an optical fiber including; a core 12 having lightwave guide property and extending along one direction; a clad layer 14 covering over a peripheral surface of the core 12; and a scintillator material dispersed in the clad layer 14 and emitting light when radiation is applied, a radiation-shielding layer 24 covering substantially over a periphery of the optical fiber 10, and a gap 26 located in at least one part of the radiation-shielding layer 24. The radiation detecting system comprises an optical fiber cable 20 adapted to emit light at a region where radiation is applied and transmitting the emitted light, photoelectric conversion means 32 connected to at least one end of the optical fiber cable 20, and processing means 38 detecting when radiation is applied in accordance with an output signal of the photoelectric conversion means 32.

Abstract translation: 本发明以低成本提供光纤，光纤电缆和放射线检测系统。 此外，提供能够不延迟地适当地监视辐射泄漏的放射线检测系统。 光缆包括：光纤，包括： 具有光波导性并且沿一个方向延伸的芯12; 覆盖在芯12的外周表面上的覆层14; 以及分散在包覆层14中并在辐射被照射时发出光的闪烁体材料，基本上覆盖在光纤10的周边上的辐射屏蔽层24和位于辐射屏蔽的至少一部分中的间隙26 辐射检测系统包括适于在施加辐射的区域发射光并透射发射的光的光纤电缆20，连接到光纤电缆20的至少一端的光电转换装置32以及处理装置 38根据光电转换装置32的输出信号检测辐射是否被施加。

公开(公告)号：US06703622B2

公开(公告)日：2004-03-09

申请号：US10279970

申请日：2002-10-25

Applicant: Henri Joubert

Inventor： Henri Joubert

IPC: G01T120

CPC classification number: G01T1/201

Abstract: A device (1) for collecting ionizing radiation comprises a scintillating optical fiber (4) received in an opaque sheath, having a first end (7) for receiving ionizing radiation and a second end (14), the fiber is arranged to convert the ionizing radiation received via its first end into light signals and to deliver the signals via its second end. The device further comprises filter elements (9) placed at the first end (10) of the sheath (3) to prevent external photons (&ngr;) and gamma type (&ggr;) ionizing radiation from gaining access to the first end (7) of the scintillating fiber (4), and at the second end (14) of the scintillating fiber (4), first connection elements (16) suitable for connection to light guide elements (2) for enabling the second end (14) of the fiber to be coupled to the end (17) of a light guide (18) of the light guide elements.

Abstract translation: 用于收集电离辐射的装置（1）包括容纳在不透明护套中的闪烁光纤（4），具有用于接收电离辐射的第一端（7）和第二端（14），所述光纤被布置成将电离 辐射经由其第一端接收到光信号中，并通过其第二端传送信号。 该装置还包括放置在护套（3）的第一端（10）处的滤光元件（9），以防止外部光子（nu）和γ型（γ）电离辐射进入到第一端（7） 闪烁光纤（4），并且在闪烁光纤（4）的第二端（14）处，适于连接到光导元件（2）的第一连接元件（16）用于使光纤的第二端（14） 耦合到光导元件的导光体（18）的端部（17）。

公开(公告)号：US06512231B1

公开(公告)日：2003-01-28

申请号：US09424222

申请日：1999-11-23

Applicant: Jean-Pierre Moy

Inventor： Jean-Pierre Moy

IPC: G01T120

CPC classification number: G01T1/201 ,  G01T1/2018 ,  H04N5/32

Abstract: A device for measuring the exposure of a solid-state image detector. The image detector includes a first face exposed to ionising radiation representative of the image. The device also lets unabsorbed ionising radiation exit through a second face opposite the first face. The measuring device is configured to be placed close to the second face and to be exposed to the unabsorbed ionising radiation. The device includes at least one optical fiber which emits visible or near visible radiation, obtained by conversion in the optical fiber, towards at least one detection device, the visible or near-visible radiation being representative of the unabsorbed ionising radiation. The detection device produces a signal representative of the exposure of the image detector. Such a device may find particular application to radiology image detectors.

Abstract translation: 一种用于测量固态图像检测器的曝光的装置。 图像检测器包括暴露于代表图像的电离辐射的第一面。 该装置还使未吸收的电离辐射通过与第一面相对的第二面离开。 测量装置被配置成放置在靠近第二面并暴露于未吸收的电离辐射。 该装置包括至少一个光纤，其发射通过光纤中的转换获得的可见光或接近可见光，朝向至少一个检测装置，可见光或近可见光辐射代表未吸收的电离辐射。 检测装置产生表示图像检测器的曝光的信号。 这种装置可以发现放射学图像检测器的特定应用。

公开(公告)号：US06271510B1

公开(公告)日：2001-08-07

申请号：US09372128

申请日：1999-08-11

Applicant: Izzie Boxen

Inventor： Izzie Boxen

IPC: H01L2700

CPC classification number: G01T1/201 ,  A61B6/4258 ,  G01T1/1644

Abstract: Apparatus for capturing two-dimensional images created by radioactive emanations, such as gamma rays, from a radioactive source, comprises a collimator, a two-dimensional array of scintillating fibers, and position encoding apparatus. The scintillating fibers are located at preselected x and y positions in an x-y plane. The position encoding apparatus comprises banks of photon detectors and a network of optical fibers which are connected to the photon detectors in a manner which encodes the x-y coordinates of the scintillating fibers, and a signal processor for generating position signals indicative of the encoded position of an active scintillating fiber.

Abstract translation: 用于捕获由放射源的放射性发射（例如γ射线）产生的二维图像的装置包括准直器，闪烁纤维的二维阵列和位置编码装置。 闪烁光纤位于x-y平面中预选的x和y位置。 位置编码装置包括光子检测器和光纤网络，其以编码闪烁光纤的xy坐标的方式连接到光子检测器，以及信号处理器，用于产生指示编码位置的位置信号 主动闪烁纤维。

公开(公告)号：US5880469A

公开(公告)日：1999-03-09

申请号：US803893

申请日：1997-02-21

Applicant: Thomas Gill Miller

Inventor： Thomas Gill Miller

IPC: G01N23/04 ,  G01N23/09 ,  G01T3/06 ,  G01T5/08 ,  G01V5/00 ,  G01N1/20

CPC classification number: G01V5/0016 ,  G01N23/04 ,  G01N23/09 ,  G01T1/201 ,  G01T3/06

Abstract: Apparatus and method for discriminating against neutrons coming from directions other than a preferred direction and discriminating against gamma rays. Two photomultiplier (PM) tubes 9,10 are parallel to each other and are attached to one end of a light pipe 12. A neutron scintillator 13 is attached to the other end of the light pipe. The scintillator 13 is comprised of optical fibers arranged contiguously along a first direction, which is perpendicular to a length dimension of the optical fibers, and which optical fibers alternate between optical fibers which emit photons only in the lower portion of the electromagnetic spectrum and optical fibers which emit photons only in the higher portion of the electromagnetic spectrum. Typically, the optical fibers are about 100-250 microns. Filters 7,8 are between the PM tubes and the light pipe. One filter 7 transmits only photons in the lower end of the electromagnetic spectrum and the other filter 8 transmits only photons in the higher portion of the electromagnetic spectrum. Neutrons proceeding from a source which is parallel to the first direction will tend to cause only one optical fiber to emit photons. If neutrons enter the scintillator perpendicular to such first direction, photons will most likely be emitted by more than one optical fiber. A signal processing unit 11 will register a detected neutron if a signal is received from only one PM tube and will register a background event if signals are received from both PM tubes. If a gamma ray enters the detector and is detected, the scattered Compton electron most likely will cross two or more optical fibers, causing signals in both PM tubes. A signal processing unit 11 will register the event as a background event.

Abstract translation: 用于区分来自除了优选方向以外的方向的中子并识别伽马射线的装置和方法。 两个光电倍增管（PM）管9,10彼此平行并且附接到光管12的一端。中子闪烁体13附接到光管的另一端。 闪烁体13包括沿着与光纤的长度尺寸垂直的第一方向连续布置的光纤，并且哪些光纤在仅在电磁光谱的下部发射光子的光纤和光纤之间交替 其仅在电磁光谱的较高部分中发射光子。 通常，光纤约为100-250微米。 过滤器7,8位于PM管和光管之间。 一个滤波器7仅在电磁频谱的下端传输光子，另一个滤波器8仅在电磁频谱的较高部分中传输光子。 从与第一方向平行的源进行的中子将倾向于仅使一根光纤发射光子。 如果中子进入垂直于这样的第一方向的闪烁体，则光子很可能被多于一根光纤发射。 如果从仅一个PM管接收信号，则信号处理单元11将注册检测到的中子，并且如果从两个PM管接收到信号，则将记录背景事件。 如果伽马射线进入检测器并被检测到，散射的康普顿电子很可能会穿过两根或多根光纤，从而在两个PM管中引起信号。 信号处理单元11将事件注册为背景事件。

公开(公告)号：US5675151A

公开(公告)日：1997-10-07

申请号：US528671

申请日：1995-09-15

Applicant: Toru Oka ,  Kazunori Ikegami

Inventor： Toru Oka ,  Kazunori Ikegami

IPC: G01T1/00 ,  G01T1/20 ,  G01T5/08 ,  G02B6/00 ,  G01T1/208

CPC classification number: G01T1/201

Abstract: A distribution type detector comprises scintillation fibers identical in length to each other, an optical delay fiber having a refractive index substantially identical to those of cores and claddings of the scintillation fibers, photosensitive elements, preamplifiers, constant fraction discriminators, a time-to-pulse height converter, an analog-to-digital converter, and a multichannel pulse-height analyzer. A position where a radiation falls on its corresponding scintillation fiber, is detected based on a difference between time intervals necessary for propagation of optical pulses produced in the corresponding scintillation fiber by the radiation. Thus, even if the length of each scintillation fiber is increased, position resolution can be kept high and a measuring circuit system can be simplified.

Abstract translation: 分布型检测器包括彼此长度相同的闪烁纤维，具有与闪烁纤维的核心和包层的折射率基本相同的光学延迟纤维，光敏元件，前置放大器，恒定分数鉴别器，时间脉冲 高度转换器，模数转换器和多通道脉冲高度分析仪。 基于在相应的闪烁光纤中由辐射产生的光脉冲的传播所需的时间间隔之间的差异来检测辐射落在其相应的闪烁光纤上的位置。 因此，即使每个闪烁光纤的长度增加，也可以将位置分辨率保持为高，并且可以简化测量电路系统。

公开(公告)号：US5583908A

公开(公告)日：1996-12-10

申请号：US411387

申请日：1995-03-28

Applicant: Peter P. Antich ,  Jon A. Anderson ,  Ervin J. Fenyves

Inventor： Peter P. Antich ,  Jon A. Anderson ,  Ervin J. Fenyves

IPC: G01T1/29 ,  G01T5/08 ,  G01N23/201

CPC classification number: G01T1/201 ,  A61B6/037 ,  G01T1/2985

Abstract: Apparatus for generating a high contrast image of a living subject includes an X-ray source capable of generating an X-ray beam having an energy between about 4 MeV and about 40 MeV, means for directing the X-ray beam generated by the X-ray source to a preselected area of the body of a living subject, and at least one scintillating detector capable of detecting photons which are generated as a result of the interaction of the X-ray beam with the body of the living subject.

Abstract translation: 用于产生活体的高对比度图像的装置包括能够产生具有约4MeV至约40MeV之间的能量的X射线束的X射线源，用于引导由X射线束产生的X射线束的装置， 射线源到活体的身体的预选区域，以及至少一个闪烁检测器，其能够检测由于X射线束与活体的身体的相互作用而产生的光子。

公开(公告)号：US5334839A

公开(公告)日：1994-08-02

申请号：US38677

申请日：1993-03-26

Applicant: Jon A. Anderson ,  Peter P. Antich

Inventor： Jon A. Anderson ,  Peter P. Antich

IPC: G01T1/00 ,  G01T1/161 ,  G01T1/164 ,  G01T1/20 ,  G01T1/29 ,  G01T5/08 ,  G02B6/00 ,  G02B6/26

CPC classification number: G01T1/201 ,  G01T1/1642 ,  G01T1/2914 ,  G01T1/2985 ,  A61B6/037 ,  A61B6/4258

Abstract: An apparatus and method are disclosed for detecting and locating the origin of a gamma ray in a medical diagnostic imaging system. At least one primary fiber, which is a scintillating optical fiber, is positioned to receive radiation from a gamma ray source. At least one secondary fiber intersects the primary fiber at a non-zero angle. Both fibers have a core surrounded by a cladding, with the claddings of the two fibers in optical contact at an intersection point. Both the primary and secondary fibers are provided with means for detecting light propagated in the fibers. The interaction of radiation such as a gamma ray with the primary fiber will result in the propagation of light in both the primary and secondary fibers, thereby permitting the determination of the site of impact of the gamma ray in the detector, and possibly also enabling the determination of the path of incidence of the gamma ray.

Abstract translation: 公开了用于检测和定位医学诊断成像系统中的伽马射线原点的装置和方法。 作为闪烁光纤的至少一个主要光纤被定位成接收来自伽马射线源的辐射。 至少一个次级光纤以非零角度与主光纤相交。 两个纤维都具有被包层包围的芯，两个光纤的包层在交点处是光学接触的。 主纤维和次纤维均具有用于检测在纤维中传播的光的装置。 诸如γ射线的辐射与主纤维的相互作用将导致光在主纤维和次纤维中的传播，从而允许确定检测器中γ射线的冲击位置，并且还可以使 确定伽马射线的入射路径。

公开(公告)号：US5281821A

公开(公告)日：1994-01-25

申请号：US784593

申请日：1991-10-29

Applicant: Peter P. Antich ,  Jon A. Anderson ,  Robert W. Parkey

Inventor： Peter P. Antich ,  Jon A. Anderson ,  Robert W. Parkey

IPC: G01T1/00 ,  G01T1/161 ,  G01T1/20 ,  G01T1/29 ,  G01T5/08

CPC classification number: G01T1/201 ,  G01T1/2914 ,  G01T1/2985

Abstract: An apparatus and method are disclosed for detecting and locating the origin of a gamma ray in a medical diagnostic imaging system. At least one primary fiber, which is a scintillating optical fiber, is positioned to receive radiation from a gamma ray source. At least one secondary fiber intersects the primary fiber at a non-zero angle and is in optical contact with the primary fiber. Both the primary and secondary fibers are provided with means for detecting light propagated in the fibers. The interaction of a gamma ray with the primary fiber will result in the propagation of light in both the primary and secondary fibers, thereby permitting the determination of the site of impact of the gamma ray in the detector, and possibly also enabling the determination of the path of incidence of the gamma ray.

Abstract translation: 公开了用于检测和定位医学诊断成像系统中的伽马射线原点的装置和方法。 作为闪烁光纤的至少一个主要光纤被定位成接收来自伽马射线源的辐射。 至少一个次级光纤以非零角度与主光纤相交，并与主光纤光学接触。 主纤维和次纤维均具有用于检测在纤维中传播的光的装置。 伽马射线与主纤维的相互作用将导致光在主纤维和次纤维中的传播，从而允许确定检测器中γ射线的冲击位置，并且还可以确定 伽马射线的入射路径。