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11. 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。

12. 发明申请

WO2008020379A2 RADIATION DETECTOR WITH COUNTING ELECTRONICS 审中-公开
标题翻译：有计数电子的辐射探测器
公开(公告)号：WO2008020379A2
公开(公告)日：2008-02-21
申请号：PCT/IB2007/053182
申请日：2007-08-10
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , STEADMAN, Roger , ZEITLER, Guenter , BAEUMER, Christian
发明人： HERRMANN, Christoph , STEADMAN, Roger , ZEITLER, Guenter , BAEUMER, Christian
IPC分类号： G01T1/17
CPC分类号： G01T1/17
摘要： The invention relates to a radiation detector, particularly an X-ray detector (100), comprising a counting circuitry (10, 20, 30) for counting electrical pulses generated by the (sub-)pixels (2) of the detector. In the counting circuitry, the results counted by a fast counting stage (10) are at intervals transferred to a slow counting stage (20). The fast counting stage (10) may for example comprise a fast counter (111) with a low bit-depth operating as a frequency divider in front of a slow counter (121) of high bit-depth in the slow counting stage (20). The counting circuitry (10, 20, 30) can optionally be fed via a multiplexer (4) with the signals of several (sub-)pixels (2). Furthermore, the pixels (1, 2) of the radiation device may optionally deliver energy resolved pulses.
摘要翻译：本发明涉及一种辐射探测器，特别是一种X射线探测器（100），其包括用于对由（子）像素（（子））产生的电脉冲进行计数的计数电路（10,20,30） 2）的检测器。在计数电路中，由快速计数级（10）计数的结果以间隔转移到慢速计数级（20）。快速计数级（10）例如可以包括具有低位深度的快速计数器（111），其在慢计数级（20）中作为高位深度的慢计数器（121）前面的分频器进行操作，。计数电路（10,20,30）可以可选地经由多路复用器（4）与几个（子）像素（2）的信号一起被馈送。此外，辐射装置的像素（1,2）可以可选地传递能量分解脉冲。

13. 发明申请

WO2008155680A2 SPECTRAL PHOTON COUNTING DETECTOR 审中-公开
标题翻译：光谱计数检测器
公开(公告)号：WO2008155680A2
公开(公告)日：2008-12-24
申请号：PCT/IB2008/052043
申请日：2008-05-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , STEADMAN, Roger , BAEUMER, Christian , ZEITLER, Guenter
发明人： HERRMANN, Christoph , STEADMAN, Roger , BAEUMER, Christian , ZEITLER, Guenter
IPC分类号： G01T1/17 , G01T1/164
CPC分类号： G01T1/171
摘要： An apparatus includes an integrator (120) that produces a pulse having a peak amplitude indicative of the energy of a detected photon. First discharging circuitry (136) discharges the integrator (120) at a first discharging speed, and second discharging circuitry (124) discharges the integrator (120) at a second discharging speed. The first discharging speed is less than the second discharging speed.
摘要翻译：一种装置包括产生具有指示被检测光子的能量的峰值振幅的脉冲的积分器（120）。第一放电电路（136）以第一放电速度放电积分器（120），第二放电电路（124）以第二放电速度放电积分器（120）。第一放电速度小于第二放电速度。

14. 发明申请

WO2008146218A2 SPECTRAL PHOTON COUNTING DETECTOR 审中-公开
标题翻译：光谱计数检测器
公开(公告)号：WO2008146218A2
公开(公告)日：2008-12-04
申请号：PCT/IB2008/052029
申请日：2008-05-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , HERRMANN, Christoph , STEADMAN, Roger , BAEUMER, Christian , ZEITLER, Guenter
发明人： HERRMANN, Christoph , STEADMAN, Roger , BAEUMER, Christian , ZEITLER, Guenter
CPC分类号： G01T1/171
摘要： An apparatus includes a scale factor determiner (236) that determines a count scale factor based on a measured count of a number detected photons for an energy threshold and an estimated actual count of the number of detected photons. The photons include poly-energetic photons detected by a radiation sensitive detector. The apparatus further includes a count sealer (136) that employs the count scale factor to scale measured counts of detected photons for different energy thresholds.
摘要翻译：一种装置包括比例因子确定器（236），该比例因子确定器（236）基于针对能量阈值的检测到的光子数量的测量计数和检测到的光子数量的估计实际计数来确定计数比例因子。光子包括由辐射敏感检测器检测的多能光子。该装置还包括计数密封器（136），其使用计数比例因子来缩放检测到的光子对于不同能量阈值的计数。

15. 发明申请

WO2008050283A3 APPARATUS, IMAGING DEVICE AND METHOD FOR DETECTING X-RAY RADIATION 审中-公开
公开(公告)号：WO2008050283A3
公开(公告)日：2008-05-02
申请号：PCT/IB2007/054283
申请日：2007-10-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , STEADMAN, Roger , ZEITLER, Guenter , HERRMANN, Christoph , BAEUMER, Christian
发明人： STEADMAN, Roger , ZEITLER, Guenter , HERRMANN, Christoph , BAEUMER, Christian
IPC分类号： G01T1/17
摘要： The invention is directed at an apparatus (10), an imaging device and a method for detecting X-ray photons, in particular photons (32,34) in a computer tomograph. Photons (32,34) are converted into an electrical pulse and compared against a threshold using a discriminator (20). The electrical network (12) performing these functions comprises a switching element (28), that can modify the electrical path (22) along which the process signals travel. The trigger signal (V T ) for actuating the switching element (28) is derived from an electrical state of the electrical path (22). If a pulse associated to a photon (32,34) is detected, the switching element (28) is actuated in order to avoid that the processing of the charge pulse stemming from a first photon (32) is affected by a subsequent second photon (34).

16. 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。

17. 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）。

18. 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。

19. 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。

20. 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.

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