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1. 发明申请

WO2008062360A2 APPARATUS AND METHOD FOR DETERMINING A DETECTOR ENERGY WEIGHTING FUNCTION OF A DETECTION UNIT 审中-公开
标题翻译：用于确定检测单元的检测器能量权重函数的装置和方法
公开(公告)号：WO2008062360A2
公开(公告)日：2008-05-29
申请号：PCT/IB2007/054692
申请日：2007-11-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ENGEL, Klaus, J. , BAEUMER, Christian , ZEITLER, Guenter , HERRMANN, Christoph
发明人： ENGEL, Klaus, J. , BAEUMER, Christian , ZEITLER, Guenter , HERRMANN, Christoph
CPC分类号： G01T1/1647
摘要： The invention relates to an apparatus for determining a detector energy weighting function of a detection unit (6). The apparatus comprises a determination unit (21) for determining a spectral response function of the detection unit (6) and a calculation unit (22) for determining the detector energy weighting function by integrating the product of the spectral response function of the detection unit (6) and a given ideal detector energy weighting function.
摘要翻译：本发明涉及一种用于确定检测单元（6）的检测器能量加权函数的装置。该装置包括：确定单元（21），用于确定检测单元（6）的频谱响应函数;以及计算单元（22），用于通过对检测单元（6）的频谱响应函数的乘积进行积分来确定检测器能量加权函数 6）和给定的理想检测器能量加权函数。

2. 发明申请

WO2008059425A3 RADIATION DETECTOR WITH MULTIPLE ELECTRODES ON A SENSITIVE LAYER 审中-公开
公开(公告)号：WO2008059425A3
公开(公告)日：2008-05-22
申请号：PCT/IB2007/054577
申请日：2007-11-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ENGEL, Klaus, J. , ZEITLER, Guenter , BAEUMER, Christian , HERRMANN, Christoph , WIEGERT, Jens , PROKSA, Roland , RÖSSL, Ewald , STEADMAN BOOKER, Roger
发明人： ENGEL, Klaus, J. , ZEITLER, Guenter , BAEUMER, Christian , HERRMANN, Christoph , WIEGERT, Jens , PROKSA, Roland , RÖSSL, Ewald , STEADMAN BOOKER, Roger
IPC分类号： G01T1/29
摘要： The invention relates to a radiation detector (200), particularly an X-ray detector, which comprises at least one sensitive layer (212) for the conversion of incident photons (X) into electrical signals. A two-dimensional array of electrodes (213) is located on the front side of the sensitive layer (212), while its back side carries a counter- electrode (211). The size of the electrodes (213) may vary in radiation direction (y) for adapting the counting workload of the electrodes. Moreover, the position of the electrodes (213) with respect to the radiation direction (y) provides information about the energy of the detected photons (X).

3. 发明申请

WO2010052676A2 CONVERTER ELEMENT FOR A RADIATION DETECTOR 审中-公开
标题翻译：用于辐射探测器的转换器元件
公开(公告)号：WO2010052676A2
公开(公告)日：2010-05-14
申请号：PCT/IB2009/054955
申请日：2009-11-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , STEADMAN BOOKER, Roger , SIMON, Matthias , HERRMANN, Christoph , MENSER, Bernd , WIEGERT, Jens , ENGEL, Klaus, J. , BAEUMER, Christian , MUELHENS, Oliver
发明人： STEADMAN BOOKER, Roger , SIMON, Matthias , HERRMANN, Christoph , MENSER, Bernd , WIEGERT, Jens , ENGEL, Klaus, J. , BAEUMER, Christian , MUELHENS, Oliver
IPC分类号： G01T1/29 , G01T1/24
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探测器的转换器元件（100），特别是用于光谱CT扫描器。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。转换单元（131）可以特别由CdTe和/或CdZnTe的晶体组成。所述晶体优选通过例如生长。在预制分隔壁之间蒸汽沉积。

4. 发明申请

WO2010026527A2 RADIATION DETECTOR WITH A STACK OF CONVERTER PLATES AND INTERCONNECT LAYERS 审中-公开
标题翻译：具有转换板和互连层堆叠的辐射探测器
公开(公告)号：WO2010026527A2
公开(公告)日：2010-03-11
申请号：PCT/IB2009/053800
申请日：2009-09-01
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , VAN ASSELT, Rob , SLOB, Cornelis , VAN VEEN, Nicolaas, J., A. , BAEUMER, Christian , STEADMAN BOOKER, Roger , HERRMANN, Christoph , WEEKAMP, Johannes, W. , ENGEL, Klaus, J.
发明人： VAN ASSELT, Rob , SLOB, Cornelis , VAN VEEN, Nicolaas, J., A. , BAEUMER, Christian , STEADMAN BOOKER, Roger , HERRMANN, Christoph , WEEKAMP, Johannes, W. , ENGEL, Klaus, J.
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）的侧面的边界体积（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。

5. 发明申请

WO2010073189A1 RADIATION DETECTOR WITH IMPROVED CHARGE COLLECTION AND MINIMIZED LEAKAGE CURRENTS 审中-公开
标题翻译：辐射探测器具有改进的充电收集和最小化的漏电流
公开(公告)号：WO2010073189A1
公开(公告)日：2010-07-01
申请号：PCT/IB2009/055784
申请日：2009-12-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , ENGEL, Klaus, J. , BAEUMER, Christian , HERRMANN, Christoph
发明人： ENGEL, Klaus, J. , BAEUMER, Christian , HERRMANN, Christoph
IPC分类号： H01L27/146 , G01T1/24
CPC分类号： H01L27/14676 , H01L27/14603 , H01L27/1462 , H01L27/14636 , H01L27/14659
摘要： The present invention relates to a radiation detector with improved charge collection and minimized leakage currents. The present invention further relates to an imaging device for imaging an object comprising the aforementioned radiation detector for detecting radiation after having passed through that object. In particular, a radiation detector is presented that comprises a steering electrode (18) arranged on the a side of a direct converter material layer (12) for guiding free electrons to an anode (16), wherein the steering electrode (18) is insulated by an insulating material (20) from the direct converter material layer (12) for providing an electron barrier between said steering electrode (18) and said direct converter material layer (12). Thus, electrons drifting towards the steering electrode (18) are blocked by the insulating material (20) and concentrated in its direct vicinity. This concentration of negative space charge causes or amplifies, respectively, the electrical opposing field which is normally generated by the application of a relatively high potential difference between the steering electrode (18) and the anode (16). Consequently, the potential difference between the steering electrode (18) and the anode (16) can be strongly reduced, resulting in the elimination or at least a significant reduction of the leakage currents and additional noise as well as the enhancement of charge collection and thus additional improvement of the spectral resolution of the radiation detector.
摘要翻译：本发明涉及具有改进的电荷收集和最小化的漏电流的辐射探测器。本发明还涉及一种用于对物体进行成像的成像装置，所述成像装置包括上述用于在穿过该物体之后检测辐射的辐射检测器。特别地，提出了一种辐射检测器，其包括布置在直接转换器材料层（12）的一侧的转向电极（18），用于将自由电子引导到阳极（16），其中转向电极（18）绝缘通过来自直接转换器材料层（12）的绝缘材料（20），用于在所述转向电极（18）和所述直接转换器材料层（12）之间提供电子势垒。因此，朝向转向电极（18）漂移的电子被绝缘材料（20）阻挡并且集中在其直接附近。这种负空间电荷的浓度分别引起或放大通常由在转向电极（18）和阳极（16）之间施加相对高的电位差而产生的电对置场。因此，可以大大降低转向电极（18）和阳极（16）之间的电位差，从而消除或至少显着降低漏电流和附加噪声以及电荷收集的增强，因此辐射检测器的光谱分辨率的额外改进。

6. 发明申请

WO2009101569A3 X-RAY DETECTOR FOR PHASE CONTRAST IMAGING 审中-公开
公开(公告)号：WO2009101569A3
公开(公告)日：2009-08-20
申请号：PCT/IB2009/050519
申请日：2009-02-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BAEUMER, Christian , ENGEL, Klaus, J. , HERRMANN, Christoph
发明人： BAEUMER, Christian , ENGEL, Klaus, J. , HERRMANN, Christoph
IPC分类号： G21K1/06
摘要： The invention relates to an X-ray detector (30) that comprises an array of sensitive elements (P i-1,b , P ia , P ib , P i+1,a , P i+1,b ) and at least two analyzer gratings (G 2a , G 2b ) disposed with different phase and/or periodicity in front of two different sensitive elements. Preferably, the sensitive elements are organized in macro-pixels (II i ) of e.g. four adjacent sensitive elements, wherein analyzer gratings with mutually different phases are disposed in front said sensitive elements. The detector (30) can particularly be applied in an X-ray device (100) for generating phase contrast images because it allows to sample an intensity pattern (I) generated by such a device simultaneously at different positions.

7. 发明申请

WO2008078255A2 ENERGY-RESOLVING DETECTION SYSTEM AND IMAGING SYSTEM 审中-公开
标题翻译：能量分辨检测系统和成像系统
公开(公告)号：WO2008078255A2
公开(公告)日：2008-07-03
申请号：PCT/IB2007/055149
申请日：2007-12-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BAEUMER, Christian , ZEITLER, Guenter , HERRMANN, Christoph , STEADMAN BOOKER, Roger , ENGEL, Klaus, J.
发明人： BAEUMER, Christian , ZEITLER, Guenter , HERRMANN, Christoph , STEADMAN BOOKER, Roger , ENGEL, Klaus, J.
CPC分类号： G01T1/2928 , G01T1/362
摘要： The invention relates to an energy-resolving detection system for detecting radiation (4). The energy-resolving detection system comprises a first layer (21) for absorbing a part of the radiation (4) and a radiation quanta counting unit comprising a second layer (26) for counting radiation quanta of the radiation (4). A read-out unit (29) is coupled with the radiation quanta counting unit for reading out the radiation quanta counting unit. The first layer (21) and second layer (26) are arranged such that the radiation (4), which is incident on the detection system and which reaches the second layer (26), has passed the first layer (21).
摘要翻译：本发明涉及用于检测辐射的能量分辨检测系统（4）。能量分辨检测系统包括用于吸收部分辐射（4）的第一层（21）和包括用于对辐射（4）的辐射量子进行计数的第二层（26）的辐射量子计数单元。读出单元（29）与辐射量子计数单元耦合，用于读出辐射量子计数单元。第一层（21）和第二层（26）被布置成使得入射到检测系统上并且到达第二层（26）的辐射（4）已经通过第一层（21）。 p>

8. 发明申请

WO2010119358A2 SPECTRAL IMAGING 审中-公开
标题翻译：光谱成像
公开(公告)号：WO2010119358A2
公开(公告)日：2010-10-21
申请号：PCT/IB2010/051101
申请日：2010-03-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BAEUMER, Christian , HERRMANN, Christoph , STEADMAN, Roger , RUETTEN, Walter
发明人： BAEUMER, Christian , HERRMANN, Christoph , STEADMAN, Roger , RUETTEN, Walter
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。

9. 发明申请

WO2009031126A2 RADIATION DETECTOR WITH SEVERAL CONVERSION LAYERS 审中-公开
标题翻译：具有几个转换层的辐射探测器
公开(公告)号：WO2009031126A2
公开(公告)日：2009-03-12
申请号：PCT/IB2008/053602
申请日：2008-09-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , BAEUMER, Christian , STEADMAN BOOKER, Roger , ZEITLER, Guenter
发明人： HERRMANN, Christoph , BAEUMER, Christian , STEADMAN BOOKER, Roger , ZEITLER, Guenter
CPC分类号： G01T1/249 , G01T1/20 , G01T1/242
摘要： The invention relates to a radiation detector (100), particularly for X-rays (X) and for γ-rays, which comprises a combination of (a) at least one primary conversion layer (101a-101f) with a low attenuation coefficient for the photons and (b) at least one secondary conversion layer (102) with a high attenuation coefficient for the photons. In preferred embodiments, the primary conversion layer (101a-101f) may be realized by a silicon layer coupled to associated energy-resolving counting electronics (111a-111f, 121). The secondary conversion layer (102) may be realized for example by CZT or GOS coupled to energy- resolving counting electronics or integrating electronics. Using primary conversion layers with low stopping power allows to build a stacked radiation detector (100) for spectral CT in which the counting rates of the layers are limited to feasible values without requiring unrealistic thin layers.
摘要翻译：本发明涉及一种特别用于X射线（X）和γ射线的辐射探测器（100），其包括（a）至少一个主要转换层（101a- 101f）对于光子具有低衰减系数，以及（b）对于光子具有高衰减系数的至少一个次级转换层（102）。在优选实施例中，主转换层（101a-101f）可以通过耦合到相关的能量分辨计数电子器件（111a-111f，121）的硅层来实现。次级转换层（102）可以例如通过耦合到能量分辨计数电子器件或集成电子器件的CZT或GOS来实现。使用具有低停止功率的主转换层允许构建用于光谱CT的堆叠辐射检测器（100），其中层的计数速率被限制为可行值而不需要不切实际的薄层。

10. 发明申请

WO2008072181A2 APPARATUS, IMAGING DEVICE AND METHOD FOR COUNTING X-RAY PHOTONS 审中-公开
标题翻译：装置，成像装置和计算X射线光子的方法
公开(公告)号：WO2008072181A2
公开(公告)日：2008-06-19
申请号：PCT/IB2007/055021
申请日：2007-12-11
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , STEADMAN BOOKER, Roger , BAEUMER, Christian , HERRMANN, Christoph , ZEITLER, Guenter
发明人： STEADMAN BOOKER, Roger , BAEUMER, Christian , HERRMANN, Christoph , ZEITLER, Guenter
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。

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