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1. 发明申请

WO2009019622A3 APPARATUS AND METHOD FOR GENERATING COUNTABLE PULSES FROM IMPINGING X-RAY PHOTONS; AND CORRESPONDING IMAGING DEVICE 审中-公开
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：WO2009019622A3
公开(公告)日：2009-08-20
申请号：PCT/IB2008052967
申请日：2008-07-24
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , STEADMAN BOOKER ROGER , BAEUMER CHRISTIAN , HERRMANN CHRISTOPH , ZEITLER GUENTER , KRUEGER HANS , RUETTEN WALTER , MUELHENS OLIVER
发明人： STEADMAN BOOKER ROGER , BAEUMER CHRISTIAN , HERRMANN CHRISTOPH , ZEITLER GUENTER , KRUEGER HANS , RUETTEN WALTER , MUELHENS OLIVER
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 photons (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产生来自成像装置（16）中的入射X射线光子（12,14）的可计数脉冲（30）的装置（10），特别是在计算机断层摄影机中，该装置（10）包括一个适于将由入射光子（12,14）产生的电荷脉冲（20）转换成电信号（22）的预放大元件（18）和具有反馈回路（28）的成形元件（26），并且适于将电信号（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）收集电信号的电荷 22）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。

2. 发明申请

WO2010052676A3 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：WO2010052676A3
公开(公告)日：2010-10-28
申请号：PCT/IB2009054955
申请日：2009-11-09
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , 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
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。

3. 发明申请

WO2012095710A3 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的检测装置
公开(公告)号：WO2012095710A3
公开(公告)日：2012-11-08
申请号：PCT/IB2011055962
申请日：2011-12-27
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , 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：本发明涉及用于检测由辐射源（2）发射的光子的检测装置（6）。信号产生单元（20）在光子撞击检测装置（6）时产生指示检测到的光子的能量的检测信号以及受先前撞击检测装置（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位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根据在光子被阻止撞击检测装置（6）时产生的基线信号来确定的，所以可以以更高的准确度确定基线偏移，从而导致改进的能量确定。

4. 发明申请

WO2007066243A2 SYSTEMS AND METHODS FOR SCANNING AND DATA ACQUISITION IN COMPUTED TOMOGRAPHY (CT) APPLICATIONS 审中-公开
标题翻译：计算机断层扫描（CT）应用中扫描和数据采集的系统和方法
公开(公告)号：WO2007066243A2
公开(公告)日：2007-06-14
申请号：PCT/IB2006053331
申请日：2006-09-16
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS CORP , LEWALTER ASTRID , PIETIG RAINER , ZEITLER GUENTER , ECK KAI , HERRMANN CHRISTOPH , KIEWITT RAINER , LOEF CHRISTOPH , MUELHENS OLIVER , RIBBING CAROLINA , MATTHIAS SIMON , WISCHHUSEN OLAF , ROSE GEORG
发明人： LEWALTER ASTRID , PIETIG RAINER , ZEITLER GUENTER , ECK KAI , HERRMANN CHRISTOPH , KIEWITT RAINER , LOEF CHRISTOPH , MUELHENS OLIVER , RIBBING CAROLINA , MATTHIAS SIMON , WISCHHUSEN OLAF , ROSE GEORG
IPC分类号： A61B6/03 , H01J35/24
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4021 , A61B6/503 , A61B6/504 , H01J2235/086 , H05G1/52
摘要： Systems and methods for data acquisition in computed tomography (CT) applications are provided. The systems and methods are particularly adapted for scanning and acquiring/processing data in connection with high-power cone-beam CT applications. The electron beam is moved/scanned along the anode surface to multiple focal positions. Data acquisition for a full projection at one focus position and one view angle is achieved by activating each focus position multiple times during the data acquisition for one angle of the gantry. The detector array and associated data processing system are adapted to rapidly switch between the different focus positions during the acquisitions for one view angle and to collect all data belonging to the same projection into the same data set. Adaptive electron optics are utilized to move/scan the electron beam along the anode surface to the various focus positions. Alternatively, a plurality of cathodes may be provided for respective focus positions and the system may support fast switching therebetween to achieve desirably short spot times. The disclosed CT system permits greater power densities without risk of heat damage to the anode and effectively increases the track velocity of the electron beam on the anode surface. The CT system and associated data acquisition methods have particular utility in CT applications requiring increased time resolution and/or spatial resolution, e.g., cardiac CT applications.
摘要翻译：提供了计算机断层摄影（CT）应用中数据采集的系统和方法。该系统和方法特别适用于扫描和获取/处理与大功率锥束CT应用有关的数据。电子束沿着阳极表面移动/扫描到多个焦点位置。通过在台架的一个角度的数据采集过程中激活每个聚焦位置多次来实现在一个聚焦位置和一个视角处的全投影的数据采集。检测器阵列和相关联的数据处理系统适于在一次视角的采集期间在不同焦点位置之间快速切换，并将属于相同投影的所有数据收集到同一数据集中。使用自适应电子光学器件将电子束沿着阳极表面移动/扫描到各种焦点位置。或者，可以为各个焦点位置设置多个阴极，并且系统可以支持它们之间的快速切换，以实现期望的短光斑时间。所公开的CT系统允许更大的功率密度，而不会对阳极造成热损害的风险，并且有效地增加阳极表面上的电子束的轨道速度。 CT系统和相关数据采集方法在需要增加时间分辨率和/或空间分辨率（例如心脏CT应用）的CT应用中具有特别的用途。

5. 发明申请

WO2012098477A3 PHOTON COUNTING DETECTOR PIXEL HAVING AN ANODE INCLUDING TWO OR MORE ALTERNATIVELY SELECTABLE AND SEPARATE SUB-ANODES 审中-公开
标题翻译：具有阳极的光电计数检测器像素，包括两个或更多个可选择和独立的亚阳极
公开(公告)号：WO2012098477A3
公开(公告)日：2012-11-15
申请号：PCT/IB2012050105
申请日：2012-01-10
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , HERRMANN CHRISTOPH , MUELHENS OLIVER
发明人： HERRMANN CHRISTOPH , MUELHENS OLIVER
IPC分类号： G01T1/24
CPC分类号： H01L27/14609 , A61B6/4233 , G01T1/24 , G01T1/241 , G01T1/247 , H01L27/14603 , H01L27/14643 , H01L27/14658 , H04N5/369 , H05G1/56
摘要： An imaging system (100) includes a radiation source (112) that emits radiation that traverses an examination region and a detector array (114) with a plurality of photon counting detector pixels (116) that detect radiation traversing the examination region and respectfully generate a signal indicative of the detected radiation. The photon counting detector pixel includes a direct conversion layer (122) having a first radiation receiving side (202) and second opposing side (206), a cathode (118) affixed to and covering all of or a substantial portion of the first side, an anode (120) affixed to a centrally located region (208) of the second side, wherein the anode includes at least two sub-anodes (120, 120i, 1202, 120N), and a metallization (124) affixed to the second side, surrounding the anode and the anode region, with a gap between the anode and the metallization. The system further includes a reconstructor (144) that reconstructs the signal to generate volumetric image data indicative of the examination region.
摘要翻译：一种成像系统（100）包括：辐射源（112），辐射源（112）发射穿过检查区域和检测器阵列（114）的辐射，多个光子计数检测器像素（116）检测穿过检查区域的辐射并且分别生成指示检测到的辐射的信号。光子计数检测器像素包括具有第一辐射接收侧（202）和第二相反侧（206）的直接转换层（122），固定并覆盖第一侧的全部或大部分的阴极（118）固定到所述第二侧的中心定位区域（208）的阳极（120），其中所述阳极包括至少两个子阳极（120,120 1，120 2，120 N），以及固定到所述第二侧的金属化部（124）围绕阳极和阳极区域，在阳极和金属化之间具有间隙。该系统还包括重建器（144），其重建信号以生成指示检查区域的体积图像数据。

6. 发明申请

WO2011077302A2 RADIATION DETECTOR ASSEMBLY WITH TEST CIRCUITRY 审中-公开
标题翻译：辐射检测器总成与测试电路
公开(公告)号：WO2011077302A2
公开(公告)日：2011-06-30
申请号：PCT/IB2010055633
申请日：2010-12-07
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , HERRMANN CHRISTOPH , STEADMAN ROGER , MUELHENS OLIVER
发明人： HERRMANN CHRISTOPH , STEADMAN ROGER , MUELHENS OLIVER
IPC分类号： G01T1/17
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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