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公开(公告)号：US09535171B2
公开(公告)日：2017-01-03
申请号：US13821570
申请日：2011-09-07
IPC分类号： G01T1/20 , G01T1/24 , H01L31/0352 , H01L31/0224 , G01T1/29
CPC分类号： G01T1/24 , G01T1/241 , G01T1/2928 , H01L31/022408 , H01L31/035272
摘要： The invention relates to a radiation detector (100) and an associated method for the detection of (e.g. X or γ-) radiation. The detector (100) comprises a converter element (110) in which incident photons (X) are converted into electrical signals, and an array of anodes (130) for generating an electrical field (E) in the converter element (110). At least two anodes are associated with two steering electrodes (140) to which different potentials can be applied by a control unit (150). Preferably, each single anode or small group of anodes is surrounded by one steering electrode. The potentials of the steering electrodes (140) may be set as a function of the potentials that are induced in these electrodes when an operating voltage is applied between the anodes and a cathode (120). Moreover, a grid electrode (160) may be provided that at least partially encircles anodes (130) and their steering electrodes (140).
摘要翻译： 本发明涉及一种用于检测（例如X或γ-）辐射的辐射检测器（100）和相关联的方法。 检测器（100）包括转换器元件（110），入射光子（X）转换成电信号，以及用于在转换器元件（110）中产生电场（E）的阳极阵列（130）。 至少两个阳极与两个转向电极（140）相关联，由控制单元（150）向其施加不同的电位。 优选地，每个单个阳极或小组阳极被一个转向电极包围。 当在阳极和阴极（120）之间施加工作电压时，可以将转向电极（140）的电位设置为在这些电极中感应的电位的函数。 此外，可以提供栅极（160），其至少部分地环绕阳极（130）及其转向电极（140）。
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公开(公告)号：US09363833B2
公开(公告)日：2016-06-07
申请号：US10258047
申请日：2002-03-15
申请人： Christoph Herrmann
发明人： Christoph Herrmann
CPC分类号： H04B7/2671 , H04W72/044 , H04W74/004 , H04W74/006 , H04W74/0841 , H04W74/0858 , H04W88/08
摘要： The invention relates to a wireless network with at least one base station and a plurality of associated terminals for the exchange of payload data and control data, and with at least one common transmission channel which is available for access to several terminals, wherein the base station is provided for controlling the access to the common transmission channel, wherein the terminals are provided for sending at least an access signal to the base station for the purpose of obtaining access to the common transmission channel, and wherein at least two different start moments can be assigned to the terminals for transmitting their respective access signals.
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公开(公告)号：US09063240B2
公开(公告)日：2015-06-23
申请号：US13511679
申请日：2010-12-07
CPC分类号： G01T1/243 , G01T1/247 , G01T7/005 , H01J49/0009 , H04N5/32 , H04N5/378 , H04N17/002
摘要： A radiation detector assembly (20) includes a detector array module (40) configured to convert radiation particles to electrical detection pulses, and an application specific integrated circuit (ASIC) (42) operatively connected with the detector array. The ASIC includes signal processing circuitry (60) configured to digitize an electrical detection pulse received from the detector array, and test circuitry (80) configured to inject a test electrical pulse into the signal processing circuitry. The test circuitry includes a current meter (84) configured to measure the test electrical pulse injected into the signal processing circuitry, and a charge pulse generator (82) configured to generate a test electrical pulse that is injected into the signal processing circuitry. The radiation detector assembly (20) is assembled by operatively connecting the ASIC (42) with the detector array module (40), and the signal processing circuitry (60) of the ASIC of the assembled radiation detector assembly is tested without the use of radiation.
摘要翻译： 辐射检测器组件（20）包括被配置为将辐射粒子转换成电检测脉冲的检测器阵列模块（40）以及与检测器阵列可操作地连接的专用集成电路（ASIC）（42）。 ASIC包括被配置为数字化从检测器阵列接收的电检测脉冲的信号处理电路（60），以及配置成将测试电脉冲注入到信号处理电路中的测试电路（80）。 测试电路包括配置成测量注入到信号处理电路中的测试电脉冲的电流计（84）和被配置为产生被注入到信号处理电路中的测试电脉冲的充电脉冲发生器（82）。 通过将ASIC（42）与检测器阵列模块（40）可操作地连接来组装放射线检测器组件（20），并且组装的辐射探测器组件的ASIC的信号处理电路（60）被测试而不使用辐射 。
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公开(公告)号：US09018589B2
公开(公告)日：2015-04-28
申请号：US13991462
申请日：2011-12-02
IPC分类号： G01T1/24 , H01L31/0224 , H01L31/18 , H01L27/146
CPC分类号： H01L31/0224 , G01T1/24 , G01T1/247 , H01L27/14676 , H01L31/18
摘要： The invention relates to a radiation detector (100) comprising a converter element (102) for converting incident high-energy radiation (X) into charge signals. A cathode (101) and an array (104) of anodes (103) are disposed on different sides of the converter element (102) for generating an electrical field (E0, Ed) within it. The strength of said electrical field (E0, Ed) is increased in a first region (Rd) near the anode array (104) with respect to a second region (R0) remote from it. Such an increase may be achieved by doping the first region (Rd) with an electron acceptor. The increased field strength in the first region (Rd) favorably affects the sharpness of charge pulses generated by incident radiation.
摘要翻译： 本发明涉及一种辐射检测器（100），其包括用于将入射的高能辐射（X）转换为电荷信号的转换器元件（102）。 阳极（103）的阴极（101）和阵列（104）设置在转换器元件（102）的不同侧上，用于在其内产生电场（E0，Ed）。 所述电场（E0，Ed）的强度相对于远离其的第二区域（R0）在阳极阵列（104）附近的第一区域（Rd）中增加。 可以通过用电子受体掺杂第一区域（Rd）来实现这种增加。 第一区域（Rd）中增加的场强有利地影响入射辐射产生的电荷脉冲的清晰度。
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公开(公告)号：US20130168557A1
公开(公告)日：2013-07-04
申请号：US13821570
申请日：2011-09-07
IPC分类号： G01T1/24
CPC分类号： G01T1/24 , G01T1/241 , G01T1/2928 , H01L31/022408 , H01L31/035272
摘要： The invention relates to a radiation detector (100) and an associated method for the detection of (e.g. X or γ-) radiation. The detector (100) comprises a converter element (110) in which incident photons (X) are converted into electrical signals, and an array of anodes (130) for generating an electrical field (E) in the converter element (110). At least two anodes are associated with two steering electrodes (140) to which different potentials can be applied by a control unit (150). Preferably, each single anode or small group of anodes is surrounded by one steering electrode. The potentials of the steering electrodes (140) may be set as a function of the potentials that are induced in these electrodes when an operating voltage is applied between the anodes and a cathode (120). Moreover, a grid electrode (160) may be provided that at least partially encircles anodes (130) and their steering electrodes (140).
摘要翻译： 本发明涉及一种用于检测（例如X或γ）辐射的辐射检测器（100）和相关联的方法。 检测器（100）包括转换器元件（110），入射光子（X）转换成电信号，以及用于在转换器元件（110）中产生电场（E）的阳极阵列（130）。 至少两个阳极与两个转向电极（140）相关联，由控制单元（150）向其施加不同的电位。 优选地，每个单个阳极或小组阳极被一个转向电极包围。 当在阳极和阴极（120）之间施加工作电压时，可以将转向电极（140）的电位设定为在这些电极中感应的电位的函数。 此外，可以提供栅极（160），其至少部分地环绕阳极（130）及其转向电极（140）。
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96.发明授权Radiation detector with a stack of scintillator elements and photodiode arrays 有权具有闪烁体元件和光电二极管阵列堆叠的辐射检测器公开(公告)号：US08373132B2
公开(公告)日：2013-02-12
申请号：US12698330
申请日：2010-02-02
IPC分类号： G01T1/20
CPC分类号： H01L27/1446 , H01L27/14603 , H01L27/1462 , H01L31/18
摘要： The invention relates to a radiation detector and a method for producing such a detector, wherein the detector comprises a stack of the scintillator elements and photodiode arrays. The PDAs extend with electrical leads into a rigid body filling a border volume lateral of the scintillator elements, wherein said leads end in a contact surface of the border volume. Moreover, a redistribution layer is disposed on the contact surface, wherein electrical lines of the redistribution layer contact the leads of the PDAs.
摘要翻译： 本发明涉及一种用于制造这种检测器的放射线检测器和方法，其中该检测器包括一组闪烁体元件和光电二极管阵列。 PDA随着电引线延伸进入填充闪烁体元件的边界体积横截面的刚体，其中所述引线端接在边界体积的接触表面中。 此外，再分配层设置在接触表面上，其中再分布层的电线接触PDA的引线。
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97.发明授权Apparatus and method for generating countable pulses from impinging X-ray photons; and corresponding imaging device 有权用于产生来自冲击X射线光子的可计数脉冲的装置和方法; 和相应的成像装置公开(公告)号：US08350221B2
公开(公告)日：2013-01-08
申请号：US12670876
申请日：2008-07-24
申请人： Roger Steadman Booker , Christian Baeumer , Christoph Herrmann , Guenter Zeitler , Hans Krüger , Walter Ruetten , Oliver Muelhens
发明人： Roger Steadman Booker , Christian Baeumer , Christoph Herrmann , Guenter Zeitler , Hans Krüger , Walter Ruetten , Oliver Muelhens
IPC分类号： G01N23/00
CPC分类号： G01T1/17
摘要： The present invention relates to an apparatus (10) for generating countable pulses (30) from impinging X-ray (12, 14) in an imaging device (16), in particular in a computer tomograph, the apparatus (10) comprising a pre-amplifying element (18) adapted to convert a charge pulse (20) generated by an impinging photon (12, 14) into an electrical signal (22) and a shaping element (26) having a feedback loop (28) and adapted to convert the electrical signal (22) into an electrical pulse (30), wherein a delay circuit (38) is connected to the feedback loop (28) such that a time during which the feedback loop (28) collects charges of the electrical signal (22) is extended in order to improve an amplitude of the electrical pulse (30) at an output (56) of the shaping element (26). The invention also relates to a corresponding imaging device (16) and a corresponding method.
摘要翻译： 本发明涉及一种用于在成像装置（16）中产生可冲击的脉冲（30）的设备（10），特别是在计算机断层摄影装置中，该装置（10）包括一个预先 适于将由入射光子（12,14）产生的电荷脉冲（20）转换成电信号（22）的放大元件（18）和具有反馈回路（28）并适于转换的成形元件（26） 电信号（22）转换成电脉冲（30），其中延迟电路（38）连接到反馈回路（28），使得反馈回路（28）收集电信号（22）的电荷 ）被扩展以便改善成形元件（26）的输出端（56）处的电脉冲（30）的振幅。 本发明还涉及相应的成像装置（16）和相应的方法。
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公开(公告)号：US20120032085A1
公开(公告)日：2012-02-09
申请号：US13263851
申请日：2010-03-15
IPC分类号： G01T1/20
CPC分类号： G01T1/1647 , G01T1/2985
摘要： An imaging system includes a scintillator array (202) and a digital photomultiplier array (204). A photon counting channel (212), an integrating channel (210), and a moment generating channel (214) process the output signal of the digital photomultiplier array (204). A reconstructor (122) spectrally resolves the first, the second and the third output signals. In one embodiment, a controller (232) activates the photon counting channel (212) to process the digital signal only if a radiation flux is below a predetermined threshold. An imaging system includes at least one direct conversion layer (302) and at least two scintillator layers (304) and corresponding photosensors (306). A photon counting channel (212) processes an output of the at least one direct conversion layer (302), and an integrating channel (210) and a moment generating channel (214) process respective outputs of the photosensors (306). A reconstructor (122) spectrally resolves the first, the second and the third output signals.
摘要翻译： 成像系统包括闪烁体阵列（202）和数字光电倍增管阵列（204）。 光子计数通道（212），积分通道（210）和力矩产生通道（214）处理数字光电倍增管阵列（204）的输出信号。 重建器（122）对第一，第二和第三输出信号进行光谱解析。 在一个实施例中，仅当辐射通量低于预定阈值时，控制器（232）激活光子计数通道（212）才能处理数字信号。 成像系统包括至少一个直接转换层（302）和至少两个闪烁体层（304）和对应的光电传感器（306）。 光子计数通道（212）处理至少一个直接转换层（302）的输出，并且积分通道（210）和力矩产生通道（214）处理光电传感器（306）的相应输出。 重建器（122）对第一，第二和第三输出信号进行光谱解析。
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公开(公告)号：US20110211669A1
公开(公告)日：2011-09-01
申请号：US13127791
申请日：2009-11-09
CPC分类号： G01T1/249 , G01T1/247 , G01T1/2928
摘要： The invention relates to a radiation detector (100) comprising a converter element (113) with an array (120) of first electrodes (121) for sampling electrical signals generated by incident radiation (X). With a connection circuit (130), at least two first electrodes (121) can selectively be coupled to a common readout unit (141) according to a given connection pattern (CP1). The effective pixel size along the path of incident radiation (X) can thus be adapted to the distribution of electrical signals, which is usually determined by the spectral composition of the incident radiation.
摘要翻译： 本发明涉及一种辐射检测器（100），包括具有第一电极阵列（120）的转换元件（113），用于对入射辐射（X）产生的电信号进行采样。 利用连接电路（130），至少两个第一电极（121）可以根据给定的连接模式（CP1）选择性地耦合到公共读出单元（141）。 沿着入射辐射（X）的路径的有效像素尺寸因此可以适应于电信号的分布，其通常由入射辐射的光谱组成确定。
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公开(公告)号：US20110211668A1
公开(公告)日：2011-09-01
申请号：US13127769
申请日：2009-11-09
申请人： Roger Steadman Booker , Matthias Simon , Christoph Herrmann , Bernd Menser , Jens Wiegert , Klaus Juergen Engel , Christian Baeumer , Oliver Muelhens
发明人： Roger Steadman Booker , Matthias Simon , Christoph Herrmann , Bernd Menser , Jens Wiegert , Klaus Juergen Engel , Christian Baeumer , Oliver Muelhens
CPC分类号： G01T1/249 , G01T1/24 , G01T1/2928
摘要： The invention relates to converter element (100) for a radiation detector, particularly for a Spectral CT scanner. The converter element (100) comprises at least two conversion cells (131) that are at least partially separated from each other by intermediate separation walls (135) which affect the spreading of electrical signals generated by incident radiation (X). The conversion cells (131) may particularly consist of a crystal of CdTe and/or CdZnTe. Said crystal is preferably grown by e.g. vapor deposition between preformed separation walls.
摘要翻译： 本发明涉及用于辐射检测器的转换器元件（100），特别是用于光谱CT扫描仪。 转换器元件（100）包括至少两个转换单元（131），所述至少两个转换单元（131）通过影响由入射辐射（X）产生的电信号的扩展的中间分隔壁（135）至少部分地彼此分离。 转换电池（131）可以特别地由CdTe和/或CdZnTe的晶体组成。 所述晶体优选通过例如 预成型分隔壁之间的气相沉积。
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