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1. 发明申请

WO2010055457A2 RADIATION DETECTOR WITH AN ARRAY OF ELECTRODES 审中-公开
标题翻译：具有电极阵列的辐射探测器
公开(公告)号：WO2010055457A2
公开(公告)日：2010-05-20
申请号：PCT/IB2009/054967
申请日：2009-11-09
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , BAEUMER, Christian , STEADMAN BOOKER, Roger
发明人： HERRMANN, Christoph , BAEUMER, Christian , STEADMAN BOOKER, Roger
IPC分类号： G01T1/24 , G01T1/29
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。

2. 发明申请

WO2008104911A2 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：WO2008104911A2
公开(公告)日：2008-09-04
申请号：PCT/IB2008/050648
申请日：2008-02-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , BAEUMER, Christian , HERRMANN, Christoph , STEADMAN BOOKER, Roger , ZEITLER, Guenter
发明人： BAEUMER, Christian , HERRMANN, Christoph , STEADMAN BOOKER, Roger , ZEITLER, Guenter
IPC分类号： G01T1/17
CPC分类号： G01T1/17 , G01T1/2985
摘要： The invention relates to an apparatus (10) for counting X-rayphotons (12, 14), in particular photons in a computer tomograph. The events from a first photon-sensitive element (20) are recorded in a first integrator (24), and the events coming from a second photon-sensitive element (22) are counted in a second integrator (26). A first summing unit (28) is provided for summing the values from the first and second integrators (24, 26) and a result signalto obtain a sum, wherein the result signal is obtained from a feedback device (30) being provided with the sum. It is there possible to reduce a total information density generated by the impinging photons (12, 14), so that a data stream with a reduced information density (or reduced data rate) is present at an output (34). The invention also relates to a corresponding imaging device (16) based on the detection of X-rayphotons (12, 14), in particular for medical use and to a method for counting X-rayphotons (12, 14), in particular photons in a computer tomograph.
摘要翻译：本发明涉及用于计算X射线光子（12,14）的设备（10），特别是计算机断层摄影机中的光子。来自第一光敏元件（20）的事件被记录在第一积分器（24）中，并且来自第二光敏元件（22）的事件在第二积分器（26）中被计数。第一求和单元（28）用于对来自第一和第二积分器（24,26）的值和结果信号进行求和以获得和，其中结果信号从反馈装置（30）获得，该反馈装置（30）被提供有总和。可以减少由入射光子（12,14）产生的总信息密度，使得在输出端（34）存在具有降低的信息密度（或降低的数据速率）的数据流。本发明还涉及基于X射线光子（12,14）的检测，特别是医疗用途的相应的成像装置（16），以及用于计数X射线光子（12,14）的方法，特别是用于计数X射线光子一台电脑断层扫描仪

3. 发明申请

WO2013057645A2 PHOTON COUNTING DETECTOR 审中-公开
标题翻译：光电计数检测器
公开(公告)号：WO2013057645A2
公开(公告)日：2013-04-25
申请号：PCT/IB2012/055554
申请日：2012-10-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH
发明人： STEADMAN BOOKER, Roger , LUHTA, Randall, Peter , HERRMANN, Christoph
CPC分类号： H05G1/26 , G01N23/046 , G01T1/17 , G01T1/24 , G01T1/247 , G01T1/2985 , G01T7/005
摘要： An imaging system (300) includes a detector array (314)with direct conversion detector pixels that detect radiation traversing an examination region of the imaging system and generate a signal indicative of the detected radiation, a pulse shaper (316) configured to alternatively process the signal indicative of detected radiation generated by the detector array or a set of test pulses having different and known heights that correspond to different and known energy levels and to generate output pulses having heights indicative of the energy of the processed detected radiation or set of test pulses, and a thresholds adjuster (330) configured to analyze the heights of the output pulses corresponding to the set of test pulses in connection with the heights of set of test pulses and a set of predetermined fixed energy thresholds and generate a threshold adjustment signal indicative of a baseline based on a result of the analysis.
摘要翻译：成像系统（300）包括具有直接转换检测器像素的检测器阵列（314），其检测穿过成像系统的检查区域并产生指示检测到的辐射的信号的辐射;脉冲整形器（316），被配置为交替地处理指示由检测器阵列产生的检测到的辐射的信号或具有对应于不同和已知能级的不同和已知高度的一组测试脉冲，并产生具有指示经处理的检测到的辐射或一组测试脉冲的能量的高度的输出脉冲，以及阈值调整器（330），其被配置为分析与所述一组测试脉冲相对应的输出脉冲的高度以及一组预定的固定能量阈值，并且生成指示基于分析结果的基准。

4. 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。

5. 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。

6. 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).

7. 发明申请

WO2012095710A2 DETECTION DEVICE FOR DETECTING PHOTONS EMITTED BY A RADIATION SOURCE 审中-公开
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：WO2012095710A2
公开(公告)日：2012-07-19
申请号：PCT/IB2011/055962
申请日：2011-12-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , STEADMAN BOOKER, Roger , MUELHENS, Oliver
发明人： HERRMANN, Christoph , STEADMAN BOOKER, Roger , MUELHENS, Oliver
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。

8. 发明申请

WO2008146230A2 PHOTON COUNTING WITH DETECTION OF LOCAL MAXIMA 审中-公开
标题翻译：具有检测本地MAXIMA的光电计数器
公开(公告)号：WO2008146230A2
公开(公告)日：2008-12-04
申请号：PCT/IB2008/052058
申请日：2008-05-26
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , STEADMAN BOOKER, Roger , HERRMANN, Cristoph , BAEUMER, Christian , ZEITLER, Guenter
发明人： STEADMAN BOOKER, Roger , HERRMANN, Cristoph , BAEUMER, Christian , ZEITLER, Guenter
CPC分类号： G01N23/046 , G01N2223/419 , G01T1/171
摘要： A photon counting apparatus includes a radiation detector (100) and signal conditioning circuitry (102). A photon rate counter (106) produces a count value indicative of a total number of photons received by the detector (100). One or more photon counters (110 1+N ) produce count values indicative of photons having varying energy characteristics. The counters (110 1+n ) disregard pileup pulses.
摘要翻译：光子计数装置包括辐射检测器（100）和信号调节电路（102）。光子速率计数器（106）产生指示由检测器（100）接收的光子总数的计数值。一个或多个光子计数器（1101 + N）产生指示具有变化的能量特性的光子的计数值。计数器（1101 + n）忽略堆积脉冲。

9. 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>

10. 发明申请

WO2012035466A2 RADIATION DETECTOR WITH STEERING ELECTRODES 审中-公开
标题翻译：带有转向电极的辐射探测器
公开(公告)号：WO2012035466A2
公开(公告)日：2012-03-22
申请号：PCT/IB2011/053915
申请日：2011-09-07
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , ENGEL, Klaus, Jürgen , STEADMAN BOOKER, Roger
发明人： HERRMANN, Christoph , ENGEL, Klaus, Jürgen , STEADMAN BOOKER, Roger
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λ）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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