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21. 发明授权

US07166848B2 Three dimensional radiation detector 失效
公开(公告)号：US07166848B2
公开(公告)日：2007-01-23
申请号：US10179909
申请日：2002-06-25
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
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.

22. 发明授权

US07136557B2 All optical chopping for shaping and reshaping apparatus and method 有权
标题翻译：所有光学斩波用于成型和整形装置和方法
公开(公告)号：US07136557B2
公开(公告)日：2006-11-14
申请号：US10826363
申请日：2004-04-19
申请人： Arie Shahar , Eldan Halberthal
发明人： Arie Shahar , Eldan Halberthal
IPC分类号： G02B6/00 , H04B10/12
CPC分类号： H04J14/08 , G02B6/04 , G02B6/125 , G02B6/2804 , G02B6/2861 , G02B2006/12107 , G02B2006/12142 , G02B2006/12145 , G02B2006/12147 , G02B2006/12164 , H04J14/02
摘要： The present invention relates to all optical choppers for shaping and reshaping. A chopper according to some embodiments of the invention may include a threshold device having an input terminal for receiving an optical input signal and an output terminal for emitting an optical output signal in response to a part of the input signal having intensity above a threshold level of the chopping device, wherein the output signal is narrower than the input signal. In other embodiments the device may include a first splitting device having at least first, second and third terminals, and at least one nonlinear element, wherein the second and third terminals form an optical loop including at least one nonlinear element displaced from the center of the optical loop, wherein the splitting device is arranged to receive an input signal for producing a first output signal that is narrower than the input signal. In further embodiments the optical loop includes at least one more attenuator.
摘要翻译：本发明涉及用于整形和整形的所有光斩波器。根据本发明的一些实施例的斩波器可以包括阈值装置，其具有用于接收光输入信号的输入端子和用于响应于具有高于阈值电平的强度的输入信号的一部分来发射光输出信号的输出端子斩波装置，其中输出信号比输入信号窄。在其他实施例中，装置可以包括具有至少第一，第二和第三端子以及至少一个非线性元件的第一分离装置，其中第二和第三端子形成光环路，该光回路包括至少一个非线性元件，光环路，其中所述分离装置被布置为接收用于产生比所述输入信号窄的第一输出信号的输入信号。在另外的实施例中，光学环路包括至少一个衰减器。

23. 发明申请

US20050008289A1 All optical chopping using logic gates apparatus and method 失效
标题翻译：所有光斩波采用逻辑门装置和方法
公开(公告)号：US20050008289A1
公开(公告)日：2005-01-13
申请号：US10827314
申请日：2004-04-20
申请人： Arie Shahar , Eldan Halberthal
发明人： Arie Shahar , Eldan Halberthal
IPC分类号： G02B6/26
CPC分类号： G02B6/26
摘要： An all optical chopping device for shaping and reshaping comprising an all optical AND logic gate having a first input for receiving a first optical signal, a second input for receiving a second optical signal and at least one output. The AND gate may be arranged to produce at least at one output thereof an optical output signal corresponding to a portion of the AND product of the first optical signal and the second optical signals. The optical output signal may be narrower than at least one of the first optical signal and the second optical signal.
摘要翻译：一种用于成形和整形的全光斩波装置，包括具有用于接收第一光信号的第一输入的全光AND逻辑门，用于接收第二光信号的第二输入和至少一输出。与门可以被布置成至少在其一个输出处产生对应于第一光信号和第二光信号的AND乘积的一部分的光输出信号。光输出信号可以比第一光信号和第二光信号中的至少一个窄。

24. 发明授权

US06795626B2 Optical threshold devices and methods 失效
标题翻译：光阈值装置和方法
公开(公告)号：US06795626B2
公开(公告)日：2004-09-21
申请号：US10404140
申请日：2003-04-02
申请人： Arie Shahar , Eldan Halberthal
发明人： Arie Shahar , Eldan Halberthal
IPC分类号： G02B600
CPC分类号： G02F1/3519 , G02F1/3517 , G02F2001/212
摘要： An optical threshold device including an optical loop having first and second terminals aid including at least one non-linear optical element and at least one optical attenuator; and an optical coupler able to couple a first portion of an input signal to the first terminal and a second portion of the input signal to the second terminal, wherein the optical loop is able to produce a first return signal at the second terminal and a second return signal at the first terminal, and wherein the optical coupler is able to combine the first and second return signals into an output signal.
摘要翻译：包括具有第一和第二终端的光环路的光学阈值装置有助于包括至少一个非线性光学元件和至少一个光衰减器; 以及光耦合器，其能够将输入信号的第一部分耦合到所述第一端子，以及将所述输入信号的第二部分耦合到所述第二端子，其中所述光环路能够在所述第二端子处产生第一返回信号，在第一终端处返回信号，并且其中光耦合器能够将第一和第二返回信号组合成输出信号。

25. 发明授权

US06765213B2 Gamma-ray detector for coincidence detection 有权
标题翻译：伽马射线探测器用于重合检测
公开(公告)号：US06765213B2
公开(公告)日：2004-07-20
申请号：US09918371
申请日：2001-07-30
申请人： Arie Shahar , Uri El-Hanany , Alex Tsigelman , Shimon Klier , Eldan Halberthal
发明人： Arie Shahar , Uri El-Hanany , Alex Tsigelman , Shimon Klier , Eldan Halberthal
IPC分类号： G01T124
CPC分类号： G01T1/2928
摘要： A semiconductor coincidence detector device including at least a first and a second detector crystal array, each having a first and second surface, an array of pixellated anodes formed on each of the first surfaces, an array of segmented cathodes formed on each of the second surfaces, essentially each of the pixellated anodes being connected to an anode electronic channel for generating a first electrical signal corresponding to the energy of a photon impinging in the semiconductor, and essentially each of the segmented cathodes being connected to a cathode electronic channel for generating an electrical coincidence trigger signal on detection of a photon impinging in the semiconductor, the first electrical signal being read only from anodes located opposite the cathode segment generating the trigger signal.
摘要翻译：一种半导体符合检测器件，至少包括第一和第二检测器晶体阵列，每个具有第一和第二表面，形成在每个第一表面上的像素化阳极阵列，形成在每个第二表面上的分段阴极阵列，基本上每个像素化阳极连接到阳极电子通道，用于产生对应于入射在半导体中的光子的能量的第一电信号，并且基本上每个分段阴极连接到阴极电子通道，用于产生电检测入射在半导体中的光子时的重合触发信号，第一电信号仅从与产生触发信号的阴极段相对的阳极读取。

26. 发明授权

US5847398A Gamma-ray imaging with sub-pixel resolution 失效
标题翻译：伽玛射线成像与亚像素分辨率
公开(公告)号：US5847398A
公开(公告)日：1998-12-08
申请号：US896202
申请日：1997-07-17
申请人： Arie Shahar , Uri El-Hanany , Alex Tsigelman , Shimon Klier , Alexander Gorin , Eldan Halberthal
发明人： Arie Shahar , Uri El-Hanany , Alex Tsigelman , Shimon Klier , Alexander Gorin , Eldan Halberthal
IPC分类号： G01T1/164 , G01T1/24 , G01T1/29 , G01T1/161
CPC分类号： G01T1/1648 , G01T1/243 , G01T1/2928
摘要： A gamma ray imaging system for providing high resolution images includes a collimator plate with an array of multiple holes which image a gamma emitting object onto a semiconductor gamma detector pixel array coupled to a signal processor. The collimator holes are smaller than half the pixel pitch. The detector array is moved in steps, with a step-size equal to the pitch of the collimator holes, to successive imaging positions. The hole locations and imaging positions are such that gamma photons do not fall on the dead areas of the pixels. An electronic processing unit constructs from the pixel signals produced at each imaging position, a set of independent equations and solves them to derive the exact image signal of each irradiated area, and uses this data to compose and a display a high resolution gamma image of the object.
摘要翻译：用于提供高分辨率图像的伽马射线成像系统包括具有多个孔阵列的准直板，其将伽马发射物体成像到耦合到信号处理器的半导体伽马检测器像素阵列上。准直器孔小于像素间距的一半。检测器阵列以等于准直器孔的间距的步长逐步移动到连续的成像位置。孔位置和成像位置使得γ光子不会落在像素的死区上。电子处理单元从在每个成像位置产生的像素信号，一组独立方程构成，并解决它们以导出每个照射区域的精确图像信号，并且使用该数据来组合和显示高分辨率伽玛图像目的。

27. 发明授权

US06657200B2 Readout system for solid-state detector arrays 有权
标题翻译：固态探测器阵列读出系统
公开(公告)号：US06657200B2
公开(公告)日：2003-12-02
申请号：US09918372
申请日：2001-07-30
申请人： Einar Nygard , Eldan Halberthal
发明人： Einar Nygard , Eldan Halberthal
IPC分类号： G01T116
CPC分类号： G01T1/2928
摘要： A signal readout system for a solid state detector array comprising a plurality of detection channels, wherein the decision to output a signal detected by a channel is determined by the content of that channel.
摘要翻译：一种用于固态检测器阵列的信号读出系统，包括多个检测通道，其中输出由通道检测的信号的决定由该通道的内容确定。

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