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1. 发明授权

US07652258B2 Method, apparatus, and system of reducing polarization in radiation detectors 有权
标题翻译：降低辐射探测器偏振的方法，装置和系统
公开(公告)号：US07652258B2
公开(公告)日：2010-01-26
申请号：US11964059
申请日：2007-12-26
申请人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Peter Rusian , Zeev Gutman
发明人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Peter Rusian , Zeev Gutman
IPC分类号： G01T1/24
CPC分类号： G01T1/24
摘要： Method, apparatus and system for reducing or preventing polarization in semiconductor radiation detectors for medical imaging. For example, an apparatus includes a semiconductor with electrodes coupled thereto, configured to generate an electrical signal in the electrodes in response to absorption of ionizing radiation in the semiconductor, wherein the absorption of the ionizing radiation generates a space charge in the semiconductor; and an infra-red (IR) generator configured to generate IR radiation of a selectable wavelength, the selectable wavelength being chosen so as to at least partially reduce an effect of the space charge on the electrical signal.
摘要翻译：用于减少或防止用于医学成像的半导体辐射检测器中的偏振的方法，装置和系统。例如，一种装置包括具有与其耦合的电极的半导体，其被配置为响应于半导体中的电离辐射的吸收而在电极中产生电信号，其中电离辐射的吸收在半导体中产生空间电荷; 以及被配置为产生可选择波长的红外辐射的红外（IR）发生器，所述可选择波长被选择为至少部分地减小空间电荷对电信号的影响。

2. 发明申请

US20070295914A1 High resolution energy detector 失效
标题翻译：高分辨率能量探测器
公开(公告)号：US20070295914A1
公开(公告)日：2007-12-27
申请号：US11729141
申请日：2007-03-28
申请人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
发明人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
IPC分类号： G01T1/24
CPC分类号： G01T1/242 , G01T1/247
摘要： Apparatus for detecting radiation, including a semiconductor which is arranged to interact with photons of the radiation, and a plurality of electrodes which are configured to sense respective charge distributions in response to interactions of the photons with a region of the semiconductor. The apparatus includes circuitry having respective detector circuits coupled to the electrodes to detect the interactions. The circuitry is configured to receive the respective charge distributions from two or more of the electrodes so as to generate respective energy distributions of the photons for each of the two or more electrodes, to compensate for variations in detection characteristics of the respective detector circuits so as to align the respective energy distributions with each other to form aligned distributions, to sum the aligned distributions to generate an overall energy distribution of the photons, and to output a signal indicative of the overall energy distribution.
摘要翻译：用于检测辐射的装置，包括布置成与辐射光子相互作用的半导体，以及多个电极，其被配置为响应于光子与半导体区域的相互作用而感测各自的电荷分布。该装置包括具有耦合到电极的相应检测器电路以检测相互作用的电路。电路被配置为从两个或更多个电极接收相应的电荷分布，以便为两个或更多个电极中的每一个产生光子的相应能量分布，以补偿各个检测器电路的检测特性的变化，以便以使各自的能量分布彼此对准以形成对准的分布，以对准对准的分布以产生光子的总体能量分布，并输出指示总体能量分布的信号。

3. 发明申请

US20080277591A1 Directional radiation detector 审中-公开
标题翻译：定向辐射探测器
公开(公告)号：US20080277591A1
公开(公告)日：2008-11-13
申请号：US11801084
申请日：2007-05-08
申请人： Arie Shahar , Uri El-Hanany , Zeev Gutman
发明人： Arie Shahar , Uri El-Hanany , Zeev Gutman
IPC分类号： G01J1/42
CPC分类号： G01T1/1611 , A61B6/032 , A61B6/037 , A61B6/4014 , A61B6/463 , A61B6/469
摘要： A method for imaging a body, including scanning the body so as to generate a tomographic image thereof, and analyzing the tomographic image to determine a location of a region of interest (ROI) within the body. The method includes providing single photon counting detector modules, each of the modules being configured to receive photons from a respective direction and to generate a signal in response thereto. The method further includes coupling each of the modules to a respective adjustable mount, adjusting each of the adjustable mounts so that the direction of the module coupled thereto is aligned with respect to the location so as to receive radiation from the ROI, operating each of the modules to receive the photons from the ROI, and, in response to the signal generated by each of the modules, generating a single photon counting image of the ROI.
摘要翻译：一种用于对身体成像的方法，包括扫描身体以产生其断层图像，并且分析断层图像以确定身体内的感兴趣区域（ROI）的位置。该方法包括提供单个光子计数检测器模块，每个模块被配置为从各个方向接收光子并响应于此产生信号。该方法还包括将每个模块耦合到相应的可调节安装件，调整每个可调节安装件，使得耦合到其上的模块的方向相对于该位置对准，以便接收来自ROI的辐射，用于从ROI接收光子的模块，并且响应于由每个模块产生的信号，生成ROI的单个光子计数图像。

4. 发明授权

US07339176B2 Radiation detector head 失效
标题翻译：辐射探测头
公开(公告)号：US07339176B2
公开(公告)日：2008-03-04
申请号：US11180735
申请日：2005-07-14
申请人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
发明人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
IPC分类号： G01T1/24
CPC分类号： G01T1/243 , G01T1/2928
摘要： A radiation detection camera head having a focal-plane array of pixelated detectors having constant pitch between pixels over the whole of the camera head, while using detector modules having normal production tolerances, and which can nevertheless be readily removed and replaced in the detector array by means of predetermined gaps between adjacent detector modules. The pixels on the side walls of the detector modules have reduced size to maintain constant pitch over the array in spite of production variation between modules. The reduction in sensitivity due to this reduced size is compensated for by the addition of insulated conductive bands on the side walls. The head collimator is such that the septa fall between pixels and between modules, such that head sensitivity is maintained at its optimum value.
摘要翻译：一种放射线检测摄像头，具有像素化检测器的焦平面阵列，在整个摄像机头部的像素之间具有恒定的间距，同时使用具有正常生产公差的检测器模块，并且可以在检测器阵列中容易地在检测器阵列中移除和替换，相邻检测器模块之间的预定间隙的装置。尽管模块之间的生产变化，检测器模块的侧壁上的像素具有减小的尺寸以在阵列上保持恒定的间距。通过在侧壁上添加绝缘导电带来补偿由于该尺寸减小导致的灵敏度的降低。头准直器使得隔膜落在像素之间和模块之间，使得头灵敏度保持在其最佳值。

5. 发明申请

US20060011852A1 Radiation detector head 失效
标题翻译：辐射探测头
公开(公告)号：US20060011852A1
公开(公告)日：2006-01-19
申请号：US11180735
申请日：2005-07-14
申请人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
发明人： Uri El-Hanany , Arie Shahar , Alex Tsigelman
IPC分类号： G01T1/24
CPC分类号： G01T1/243 , G01T1/2928
摘要： A radiation detection camera head having a focal-plane array of pixelated detectors having constant pitch between pixels over the whole of the camera head, while using detector modules having normal production tolerances, and which can nevertheless be readily removed and replaced in the detector array by means of predetermined gaps between adjacent detector modules. The pixels on the side walls of the detector modules have reduced size to maintain constant pitch over the array in spite of production variation between modules. The reduction in sensitivity due to this reduced size is compensated for by the addition of insulated conductive bands on the side walls. The head collimator is such that the septa fall between pixels and between modules, such that head sensitivity is maintained at its optimum value.
摘要翻译：一种放射线检测摄像头，具有像素化检测器的焦平面阵列，在整个摄像机头部的像素之间具有恒定的间距，同时使用具有正常生产公差的检测器模块，并且可以在检测器阵列中容易地在检测器阵列中移除和替换，相邻检测器模块之间的预定间隙的装置。尽管模块之间的生产变化，检测器模块的侧壁上的像素具有减小的尺寸以在阵列上保持恒定的间距。通过在侧壁上添加绝缘导电带来补偿由于该尺寸减小导致的灵敏度的降低。头准直器使得隔膜落在像素之间和模块之间，使得头灵敏度保持在其最佳值。

6. 发明申请

US20050242292A1 Two-dimensional radiation detector 有权
公开(公告)号：US20050242292A1
公开(公告)日：2005-11-03
申请号：US11174842
申请日：2005-07-05
申请人： Uri El-Hanany , Arie Shahar
发明人： Uri El-Hanany , Arie Shahar
IPC分类号： G01T1/24 , G01J1/00
CPC分类号： G01T1/241 , G01T1/249
摘要： A two-dimensional, pixellated, monolithic semiconductor radiation detector, in which each detector pixel is essentially a perpendicular mode detector. This is achieved by an arrangement of anode spots, one for each pixel located on the flux-exposed front surface of the detector substrate, surrounding by a cathode array preferably in the form of a network of lines, such that the field between the anodes and cathodes on this front surface has a major component in the direction parallel to the surface, and hence perpendicular to the incident photon flux. The conductivity of the substrate is high near this front surface, since this is where the highest level of absorption of photons takes place, and a significant photoconductive current is thus generated between cathodes and anodes. The conductivity is proportional to the incoming photon flux, and decays exponentially with depth into the detector. Since all of the conduction paths are in parallel to each other, the resultant conductance between each anode and its surrounding cathode is the summation of all those conductances.

7. 发明授权

US07800071B2 Method, apparatus, and system of reducing polarization in radiation detectors 有权
公开(公告)号：US07800071B2
公开(公告)日：2010-09-21
申请号：US12632830
申请日：2009-12-08
申请人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Peter Rusian , Zeev Gutman
发明人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Peter Rusian , Zeev Gutman
IPC分类号： G01T1/24
CPC分类号： G01T1/24
摘要： Method, apparatus and system for reducing or preventing polarization in semiconductor radiation detectors for medical imaging. For example, an apparatus includes a semiconductor with electrodes coupled thereto, configured to generate an electrical signal in the electrodes in response to absorption of ionizing radiation in the semiconductor, wherein the absorption of the ionizing radiation generates a space charge in the semiconductor; and an infra-red (IR) generator configured to generate IR radiation of a selectable wavelength, the selectable wavelength being chosen so as to at least partially reduce an effect of the space charge on the electrical signal.

8. 发明申请

US20080237482A1 Variable collimation in radiation detection 失效
标题翻译：辐射检测中的可变准直
公开(公告)号：US20080237482A1
公开(公告)日：2008-10-02
申请号：US11729140
申请日：2007-03-28
申请人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Zeev Gutman , Alexander Cherlin
发明人： Arie Shahar , Uri El-Hanany , Eliezer Traub , Zeev Gutman , Alexander Cherlin
IPC分类号： G01J1/00 , G21K1/04
CPC分类号： G21K1/025 , A61B6/037 , A61B6/06 , A61B6/4258
摘要： Apparatus for detecting radiation emitted from a number of volume elements of a body. The apparatus includes a first plurality of detector elements, each detector element being configured to output signals indicative of an intensity of radiation that is incident thereon. The apparatus also includes a first plurality of adjustable collimator channels, each adjustable collimator channel being associated with and being positioned between a respective detector element and the body, each adjustable collimator channel having a second plurality of dimensional configurations defining respective different sets of the volume elements from which emitted radiation impinges on the respective detector element. A processor computes a radiation intensity from at least a portion of the volume elements in response to the signals output by the detector elements in at least two of the dimensional configurations of the adjustable collimator channels.
摘要翻译：用于检测从身体的许多体积元件发射的辐射的装置。该装置包括第一多个检测器元件，每个检测器元件被配置为输出指示入射在其上的辐射强度的信号。该装置还包括第一多个可调整的准直器通道，每个可调整的准直器通道与相应的检测器元件和主体相关联并且位于相应的检测器元件和主体之间，每个可调整的准直器通道具有限定各个不同组的体积元件的第二多个尺寸配置发射的辐射从该辐射照射到相应的检测器元件上。处理器响应于在可调节准直器通道的至少两个尺寸配置中由检测器元件输出的信号来计算来自至少一部分体积元件的辐射强度。

9. 发明申请

US20070278387A1 Digital readout system 有权
标题翻译：数字读出系统
公开(公告)号：US20070278387A1
公开(公告)日：2007-12-06
申请号：US11446772
申请日：2006-06-03
申请人： Daniel Shalom , Arie Shahar , Uri El-Hanany , Allon Shani , Alex Tsigelman
发明人： Daniel Shalom , Arie Shahar , Uri El-Hanany , Allon Shani , Alex Tsigelman
IPC分类号： H03K17/78
CPC分类号： G01T1/17 , H04N5/37452
摘要： A readout system, including a data channel for conveying data, and detector units. Each detector unit includes an input which receives a pulse having a magnitude, a storage buffer which stores an indication of the magnitude, and output circuitry which outputs a request-to-read signal in response to the storage unit receiving the pulse. The units output the indications to the data channel upon receiving a select signal in response to the request-to-read signal.The system includes a processor, which receives the request-to-read signal, and in response transmits the select signal and reads the indication from the data channel. The system also includes selectors, coupled as a tree of hierarchical rows having decreasing numbers of selectors, which convey the request-to-read signals from the detector units to the processor. The selectors also convey the select signals from the processor to the detector units, thereby causing the processor to read the indications.
摘要翻译：读出系统，包括用于传送数据的数据通道和检测器单元。每个检测器单元包括接收具有幅度的脉冲的输入，存储大小的指示的存储缓冲器以及响应于存储单元接收脉冲输出请求读取信号的输出电路。在响应于请求读取信号接收到选择信号时，这些单元将指示输出到数据信道。该系统包括接收请求读取信号的处理器，并且响应于发送选择信号并从数据信道读取指示。该系统还包括选择器，其被耦合为具有递减数量的选择器的分级行的树，其将请求读取信号从检测器单元传送到处理器。选择器还将选择信号从处理器传送到检测器单元，从而使处理器读取指示。

10. 发明申请

US20070040126A1 THREE DIMENSIONAL RADIATION DETECTOR 失效
标题翻译：三维辐射探测器
公开(公告)号：US20070040126A1
公开(公告)日：2007-02-22
申请号：US11430755
申请日：2006-05-09
申请人： Uri El-Hanany , Arie Shahar , Shimon Klier , Alex Tsigelman , Eldan Halberthal
发明人： Uri El-Hanany , Arie Shahar , Shimon Klier , Alex Tsigelman , Eldan Halberthal
IPC分类号： G01T1/24 , G01T1/29 , H01L27/146 , H01L25/00
CPC分类号： G01T1/202 , G01T1/2018
摘要： A pixelated detector assembly comprising a stack of thin detector crystals, each detector crystal having a pair of planar surfaces bound by edges substantially thinner than the dimensions of the surfaces. The stack is disposed such that the radiation to be detected is incident on one set of edges of the stack of detector crystals. The dimension of the planar surfaces in the general direction of incidence of the radiation incidence is sufficient to ensure that substantially all of the high energy photons to be detected are absorbed within the depth of the detector assembly. Each of the detector crystals has a two-dimensional pixelated anode array formed on one of its planar surfaces. A cathode is formed on its opposite planar surface, preferably covering substantially all of the surface. The position of interaction of a photon in the plane perpendicular to the direction of the incident radiation, is determined by which of the detector crystals in the stack detects the absorption, and by which of the rows of pixelated anodes in that crystal detects the absorption. The depth of interaction of a photon is determined by the location of the particular anode pixel in the above-mentioned row of pixelated anodes where the photon absorption is detected. The detector assembly is thus able to detect the point of interaction of a photon in all three dimensions.
摘要翻译：一种像素化检测器组件，包括薄的检测器晶体的堆叠，每个检测器晶体具有由比表面的尺寸更薄的边缘约束的一对平面。堆叠被布置成使得待检测的辐射入射在检测器晶体堆叠的一组边缘上。平面表面在辐射入射的大致入射方向上的尺寸足以确保被检测的基本上所有的高能量光子在检测器组件的深度内被吸收。每个检测器晶体具有形成在其一个平面表面上的二维像素化阳极阵列。阴极形成在其相对的平坦表面上，优选覆盖基本上所有的表面。垂直于入射辐射方向的平面中的光子相互作用的位置由叠层中的哪一个检测器晶体检测到吸收以及该晶体中哪一行的像素化阳极中的哪一行检测到吸收来确定。光子的相互作用深度由上述行检测到光子吸收的像素化阳极中的特定阳极像素的位置决定。因此，检测器组件能够检测所有三维中光子的相互作用点。

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