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11. 发明申请

US20110211669A1 RADIATION DETECTOR WITH AN ARRAY OF ELECTRODES 有权
标题翻译：具有电极阵列的辐射探测器
公开(公告)号：US20110211669A1
公开(公告)日：2011-09-01
申请号：US13127791
申请日：2009-11-09
申请人： Christoph Herrmann , Christian Baeumer , Roger Steadman Booker
发明人： Christoph Herrmann , Christian Baeumer , Roger Steadman Booker
IPC分类号： A61B6/03 , G01T1/16
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。

12. 发明申请

US20110211668A1 CONVERTER ELEMENT FOR A RADIATION DETECTOR 审中-公开
标题翻译：辐射探测器的转换器元件
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
IPC分类号： G01N23/04 , G01T1/16 , G01T1/24 , H01L31/18
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。

13. 发明申请

US20100172467A1 APPARATUS AND METHOD FOR GENERATING COUNTABLE PULSES FROM IMPINGING X-RAY PHOTONS; AND CORRESPONDING IMAGING DEVICE 有权
标题翻译：用于产生计数脉冲从装入X射线光子的装置和方法; 和相应的成像装置
公开(公告)号：US20100172467A1
公开(公告)日：2010-07-08
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： G01T1/17
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）的装置（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。

14. 发明授权

US08592773B2 Processing electronics and method for determining a count result, and detector for an X-ray imaging device 有权
标题翻译：用于确定计数结果的处理电子元件和方法以及用于X射线成像装置的检测器
公开(公告)号：US08592773B2
公开(公告)日：2013-11-26
申请号：US12679327
申请日：2008-09-23
申请人： Christian Baeumer , Guenter Zeitler , Klaus Juergen Engel , Christoph Herrmann , Roger Steadman Booker
发明人： Christian Baeumer , Guenter Zeitler , Klaus Juergen Engel , Christoph Herrmann , Roger Steadman Booker
IPC分类号： G01T1/24
CPC分类号： G01T1/17
摘要： The present invention relates to processing electronics (18) for a detector (12) of an X-ray imaging device (14), the processing electronics (18) with a pulse counter section (22) having at least one count output (30) and with an integrator section (24) having an intensity output (32), wherein the processing electronics (18) is adapted to be connected to a sensor (16) in such a manner that X-ray photons (58) arriving at the sensor (16) can be processed by the pulse counter section (22), by the integrator section (24), or both, and wherein the processing electronics (18) comprises a processor (34) adapted to be connected to the count output (30) and to the intensity output (32) and adapted to output a count result (K) that takes into account both count information (N) obtained at the count output (30) and intensity information (I) obtained at the intensity output (32), so that the count result (K) contains information (N) obtained from the pulse counter section (22) and information (M) obtained from the integrator section (24). The present invention further relates to a corresponding detector element (10) for a detector (12), an X-ray imaging device (14), a method for determining a count result (K) from a detector element (10), a computer program, a data carrier and a detector (12) for an X-ray imaging device (14).
摘要翻译：本发明涉及用于X射线成像设备（14）的检测器（12）的处理电子器件（18），具有至少一个计数输出（30）的脉冲计数器部分（22）的处理电子器件（18）以及具有强度输出（32）的积分器部分（24），其中处理电子器件（18）适于以使得X射线光子（58）到达传感器的方式连接到传感器（16）（16）可以由脉冲计数器部分（22），积分器部分（24）或两者处理，并且其中处理电子器件（18）包括适于连接到计数输出（30）的处理器（34））和强度输出（32）并且适于输出考虑在计数输出（30）处获得的计数信息（N）和在强度输出（32）处获得的强度信息（I）的计数结果（K）），使得计数结果（K）包含从脉冲计数器部分（22）获得的信息（N）和信息（M）从积分器部分（24）获得。本发明还涉及用于检测器（12）的相应的检测器元件（10），X射线成像装置（14），用于从检测器元件（10）确定计数结果（K）的方法，计算机程序，数据载体和用于X射线成像装置（14）的检测器（12）。

15. 发明授权

US08461542B2 Radiation detector with a stack of converter plates and interconnect layers 有权
标题翻译：辐射检测器，具有一组转换器板和互连层
公开(公告)号：US08461542B2
公开(公告)日：2013-06-11
申请号：US13062710
申请日：2009-09-01
申请人： Rob Van Asselt , Cornelis Slob , Nicolaas Johannes Anthonius Van Veen , Christian Baeumer , Roger Steadman Booker , Christoph Herrmann , Johannes Wilhelmus Weekamp , Klaus Jurgen Engel
发明人： Rob Van Asselt , Cornelis Slob , Nicolaas Johannes Anthonius Van Veen , Christian Baeumer , Roger Steadman Booker , Christoph Herrmann , Johannes Wilhelmus Weekamp , Klaus Jurgen Engel
IPC分类号： G01T1/24
CPC分类号： G01T1/2928
摘要： The invention relates to a radiation detector and a method for its production, wherein a series of converter plates (110) and interconnect layers (120), which extend into a border volume (BV) lateral of the converter plates (110), are stacked. By filling voids in the border volume (BV) with an underfill material and cutting through the border volume, a contact surface (CS) is generated in which electrical leads (123) of the interconnect layers (120) lie free. To allow a good contacting, said leads (123) are preferably provided with enlargements in the contact surface, for example by bonding wires (132) to them.
摘要翻译：本发明涉及一种辐射检测器及其制造方法，其中一系列转换板（110）和互连层（120），其延伸到转换器板（110）的侧边的边界体积（BV）中，。通过用底部填充材料填充边界体积（BV）中的空隙并切割通过边界体积，产生接触表面（CS），其中互连层（120）的电引线（123）不存在。为了允许良好的接触，所述引线（123）优选地设置在接触表面中的放大，例如通过将导线（132）接合到它们。

16. 发明申请

US20080258067A1 Microelectronic System with a Passivation Layer 审中-公开
标题翻译：具有钝化层的微电子系统
公开(公告)号：US20080258067A1
公开(公告)日：2008-10-23
申请号：US11573716
申请日：2005-08-11
申请人： Gereon Vogtmeier , Roger Steadman Booker , Guenter Zeitler , Klaus Jurgen Engel , Herfried Karl Wieczorek
发明人： Gereon Vogtmeier , Roger Steadman Booker , Guenter Zeitler , Klaus Jurgen Engel , Herfried Karl Wieczorek
IPC分类号： G01T1/24 , H01L31/18 , H01L31/08
CPC分类号： H01L27/14663 , H01L27/14676 , H01L31/085 , H01L31/101 , H01L31/115
摘要： The invention relates to a microelectronic system, particularly for an X-ray detector, comprising a semiconductor layer (1) with an array of pixels (P) which are composed of photosensitive components (3) and associated electronic circuits (4). An insulating passivation layer (5) with recesses (5a) in its surface is disposed between the semiconductor layer (1) and a scintillator (8). A shielding metal (6) for the protection of the electronic circuits (4) from X-radiation may be disposed in the recesses (5a) of the passivation layer (5). Furthermore, the recesses may contain glue for the fixation of the scintillator (8), wherein the passivation layer (5) additionally serves as a spacer between scintillator (8) and semiconductor layer (1).
摘要翻译：本发明涉及一种微电子系统，特别是一种用于X射线检测器的微电子系统，其包括具有由光敏元件（3）和相关电子电路（4）组成的像素阵列（P）的半导体层（1）。在半导体层（1）和闪烁体（8）之间设置有在其表面上具有凹部（5a）的绝缘钝化层（5）。用于保护电子电路（4）免受X射线的屏蔽金属（6）可设置在钝化层（5）的凹槽（5a）中。此外，凹部可以包含用于固定闪烁体（8）的胶，其中钝化层（5）另外用作闪烁体（8）和半导体层（1）之间的间隔物。

17. 发明申请

US20130284940A1 DETECTION DEVICE FOR DETECTING PHOTONS EMITTED BY A RADIATION SOURCE 有权
标题翻译：用于检测由辐射源发射的光子的检测装置
公开(公告)号：US20130284940A1
公开(公告)日：2013-10-31
申请号：US13978585
申请日：2011-12-27
申请人： Christoph Herrmann , Roger Steadman Booker , Oliver Muelhens
发明人： Christoph Herrmann , Roger Steadman Booker , Oliver Muelhens
IPC分类号： G01T1/17
CPC分类号： G01T1/17
摘要： The invention relates to a detection device (6) for detecting photons emitted by a radiation source (2). A signal generation unit (20) generates a detection signal indicative of the energy of a detected photon while photons strike the detection device (6), and a baseline signal, which is affected by photons that previously struck the detection device (6), while photons are prevented from striking the detection device (6). A baseline shift determination unit (40) determines a baseline shift of the detection signal depending on the baseline signal. An energy determination unit (30) determines the energy of a detected photon depending on the detection signal and the determined baseline shift. Since the baseline shift of the detection signal is determined from a baseline signal that is generated while photons are prevented from striking the detection device (6), the baseline shift can be determined with higher accuracy, resulting in an improved energy determination.
摘要翻译：本发明涉及一种用于检测由辐射源（2）发射的光子的检测装置（6）。信号发生单元（20）产生指示所检测的光子的能量的检测信号，同时光子撞击检测装置（6），并且受到先前撞击检测装置（6）的光子影响的基线信号，同时防止光子撞击检测装置（6）。基线偏移确定单元（40）根据基线信号确定检测信号的基线偏移。能量确定单元（30）根据检测信号和确定的基线偏移来确定检测到的光子的能量。由于检测信号的基线偏移是从光子被阻止撞击检测装置（6）时产生的基线信号确定的，所以可以以较高精度确定基线偏移，从而改善能量确定。

18. 发明授权

US08515147B2 Spectrally resolving X-ray imaging device 失效
标题翻译：光谱分辨X射线成像装置
公开(公告)号：US08515147B2
公开(公告)日：2013-08-20
申请号：US12518480
申请日：2007-12-11
申请人： Christian Baeumer , Roger Steadman Booker , Gereon Vogtmeier , Thomas Scheel , Christoph Loef
发明人： Christian Baeumer , Roger Steadman Booker , Gereon Vogtmeier , Thomas Scheel , Christoph Loef
IPC分类号： G06K9/00
CPC分类号： A61B6/405 , A61B6/032
摘要： The invention relates to an X-ray imaging device, particularly a Spectral-CT scanner, that comprises an X-ray source for generating X-radiation with an energy spectrum which varies continuously during an observation period. In a preferred embodiment, the radiation is attenuated in an object according to an energy-dependent attenuation coefficient μ, the transmitted radiation is measured by sensor units of a detector, and the resulting measurement signal is sampled and A/D converted. This is preferably done by an oversampling A/D converter, for example a ΣΔ-ADC. The tube voltage that drives the X-ray source is sampled with high frequency. In an evaluation system, these sampled measurement values can be associated with corresponding effective energy spectra to determine the energy dependent attenuation coefficient μ.
摘要翻译：本发明涉及一种X射线成像装置，特别是一种光谱CT扫描仪，其包括用于产生X射线的X射线源，其能量谱在观察期间连续变化。在优选实施例中，辐射根据能量依赖衰减系数μ在物体中衰减，透射辐射由检测器的传感器单元测量，并且所得到的测量信号被采样并进行A / D转换。这最好由过采样A / D转换器，例如SigmaDelta-ADC完成。驱动X射线源的管电压以高频率进行采样。在评估系统中，这些采样的测量值可以与相应的有效能量谱相关联，以确定能量依赖衰减系数μ。

19. 发明授权

US08237128B2 Apparatus, imaging device and method for counting X-ray photons 有权
标题翻译：用于计数X射线光子的装置，成像装置和方法
公开(公告)号：US08237128B2
公开(公告)日：2012-08-07
申请号：US12518299
申请日：2007-12-11
申请人： Roger Steadman Booker , Christian Baeumer , Christoph Herrmann , Guenter Zeitler
发明人： Roger Steadman Booker , Christian Baeumer , Christoph Herrmann , Guenter Zeitler
IPC分类号： G01T1/24
CPC分类号： G01T1/17 , G01T1/2928
摘要： The present invention relates to an apparatus (10) for counting X-ray photons (12, 14). The apparatus (10) comprises a sensor (16) adapted to convert a photon (12, 14) into a charge pulse, a processing element (18) adapted to convert the charge pulse (51) into an electrical pulse (53) and a first discriminator (20) adapted to compare the electrical pulse (53) against a first threshold (TH1) and to output an event (55) if the first threshold (TH1) is exceeded. A first counter (22) counts these events (55), unless counting is inhibited by a first gating element (24). The first gating element (24) is activated when the first discriminator (20) outputs the event (55), and it is deactivated, when the processing of a photon (12, 14) is found to be complete or about to be completed by a measurement or by the knowledge about the time that it takes to process a photon (12, 14) in the processing element (18). By activating and deactivating the first counter (22) pile-up events, i.e. pile-up of multiple electrical pulses (53), can be addressed. The invention also relates to a corresponding imaging device and a corresponding method.
摘要翻译：本发明涉及一种用于计数X射线光子（12,14）的装置（10）。所述设备（10）包括适于将光子（12,14）转换为充电脉冲的传感器（16），适于将所述充电脉冲（51）转换成电脉冲（53）的处理元件（18）适于比较电脉冲（53）与第一阈值（TH1）并且如果超过第一阈值（TH1）则输出事件（55）的第一鉴别器（20）。第一计数器（22）对这些事件（55）进行计数，除非由第一选通元件（24）抑制计数。当第一鉴别器（20）输出事件（55）时，第一选通元件（24）被激活，并且当发现光子（12,14）的处理完成或将要由测量或通过关于在处理元件（18）中处理光子（12,14）所需的时间的知识。通过激活和去激活第一计数器（22）堆积事件，即堆叠多个电脉冲（53），可以被解决。本发明还涉及相应的成像装置和相应的方法。

20. 发明申请

US20110017918A1 SINGLE PHOTON RADIATION DETECTOR 有权
标题翻译：单光子辐射探测器
公开(公告)号：US20110017918A1
公开(公告)日：2011-01-27
申请号：US12933147
申请日：2009-03-12
申请人： Christian Baeumer , Thomas Frach , Christoph Herrmann , Gordian Prescher , Torsten Solf , Roger Steadman Booker , Guenter Zeitler
发明人： Christian Baeumer , Thomas Frach , Christoph Herrmann , Gordian Prescher , Torsten Solf , Roger Steadman Booker , Guenter Zeitler
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/17
摘要： The invention relates to a radiation detector (100) that is particularly suited for energy resolved single X-ray photon detection in a CT scanner. In a preferred embodiment, the detector (100) comprises an array of scintillator elements (S k) in which incident X-ray photons (X) are converted into bursts of optical photons (hn). Pixels (P k) associated to the scintillator elements (S k) determine the numbers of optical photons they receive within predetermined acquisition intervals. These numbers can then be digitally processed to detect single X-ray photons (X) and to determine their energy. The pixels may particularly be realized by avalanche photodiodes with associated digital electronic circuits for data processing.
摘要翻译：本发明涉及一种特别适用于CT扫描仪中能量分辨的单次X射线光子检测的辐射检测器（100）。在优选实施例中，检测器（100）包括闪烁体元件（S k）的阵列，其中入射的X射线光子（X）被转换成光子光子（hn）的脉冲串。与闪烁体元件（S k）相关联的像素（P k）确定它们在预定采集间隔内接收的光子数。然后可以对这些数字进行数字处理以检测单个X射线光子（X）并确定其能量。像素可以特别由具有用于数据处理的相关数字电子电路的雪崩光电二极管实现。

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