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1. 发明申请

WO2010007544A1 ANTI-SCATTER GRID 审中-公开
标题翻译：防散网格
公开(公告)号：WO2010007544A1
公开(公告)日：2010-01-21
申请号：PCT/IB2009/052671
申请日：2009-06-22
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , LUHTA, Randall, P. , MATTSON, Rodney, A. , DORSCHEID, Ralf , VOGTMEIER, Gereon
发明人： LUHTA, Randall, P. , MATTSON, Rodney, A. , DORSCHEID, Ralf , VOGTMEIER, Gereon
IPC分类号： A61B6/06 , G21K1/02
CPC分类号： A61B6/06 , A61B6/4233 , A61B6/4291 , A61B6/4411 , G21K1/025
摘要： An anti-scatter apparatus (118) of an imaging system (100) including a base (204) with a plurality of detector tile receiving sub-regions (208) consecutively abutted and aligned along a z-axis direction of the imaging system (100). A tile receiving sub-region (208) is configured to receive a individual detector tile (210), which includes a matrix of photosensing pixels. The tile receiving sub-region (208) includes a plurality of channels (306), which are respectively aligned with different ones of the photosensing pixels. A bracket (402) is affixed to the base (204) so that detector tiles (210) installed in the plurality of tile receiving sub-regions (208) are disposed between the bracket (402) and the plurality of tile receiving sub-regions (208), thereby securing the installed detector tiles (210) in the anti-scatter apparatus (118). A fastening portion (206, 1102) fastens to a detector module cradle (120) of the imaging system (100), thereby securing the anti-scatter apparatus (118) to the imaging system. The fastening portion (206, 1102) is fastened to the detector module cradle (120) to focus the channels at a focal spot of a radiation source (110) of the imaging system (100).
摘要翻译：一种成像系统（100）的防散射设备（118），包括具有多个检测器瓦片接收子区域（208）的基座（204），该多个检测器瓦片接收子区域（208）沿着成像系统（100）的z轴方向连续地邻接和对齐）。瓦片接收子区域（208）被配置为接收单独的检测器瓦片（210），其包括光敏像素的矩阵。瓦片接收子区域（208）包括多个通道（306），它们分别对准不同的感光像素。支架（402）固定到基座（204）上，使得安装在多个瓦片接收子区域（208）中的检测器瓦片（210）设置在托架（402）和多个瓦片接收子区域（208），从而将安装的检测器瓦片（210）固定在防散射设备（118）中。紧固部分（206,1102）紧固到成像系统（100）的检测器模块支架（120），从而将防散射装置（118）固定到成像系统。紧固部分（206,1102）紧固到检测器模块支架（120），以将通道聚焦在成像系统（100）的辐射源（110）的焦点处。

2. 发明申请

WO2010058309A3 SPECTRAL IMAGING DETECTOR 审中-公开
标题翻译：光谱成像检测器
公开(公告)号：WO2010058309A3
公开(公告)日：2011-06-03
申请号：PCT/IB2009054818
申请日：2009-10-29
申请人： KONINKL PHILIPS ELECTRONICS NV , MATTSON RODNEY A , LUHTA RANDALL P , CHAPPO MARC A
发明人： MATTSON RODNEY A , LUHTA RANDALL P , CHAPPO MARC A
IPC分类号： G01T1/20
CPC分类号： G01T1/2018 , G01T1/00 , G01T1/161
摘要： A one-dimensional multi-element photo detector (120) includes a photodiode array (122) with a first upper row of photodiode pixels and a second lower row of photodiode pixels. The photodiode array (122) is part of the photo detector (120). A scintillator array (126) includes a first upper row and a second lower row of scintillator pixels. The first upper and second lower rows of scintillator pixels are respectively optically coupled to the first upper and second lower rows of photodiode pixels. The photo detector (120) also includes readout electronics (124), which are also part of the photo detector (120). Electrical traces (512) interconnect the photodiode pixels and the readout electronics (124).
摘要翻译：一维多元素光电检测器（120）包括具有第一上行光电二极管像素和第二下行光电二极管像素的光电二极管阵列（122）。光电二极管阵列（122）是光电检测器（120）的一部分。闪烁体阵列（126）包括第一上列和第二下列闪烁体像素。闪烁体像素的第一上，下下排分别光耦合到光电二极管像素的第一上列和第二下行。光检测器（120）还包括读出电路（124），其也是光电检测器（120）的一部分。电迹线（512）将光电二极管像素和读出电路（124）互连。

3. 发明申请

WO2010136911A1 MULTI-DETECTOR ARRAY IMAGING SYSTEM 审中-公开
标题翻译：多检测器阵列成像系统
公开(公告)号：WO2010136911A1
公开(公告)日：2010-12-02
申请号：PCT/IB2010/051648
申请日：2010-04-15
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, John
发明人： LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, John
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/4241 , A61B6/4266 , A61B6/4452 , G01T1/1644 , G01T1/2985
摘要： An imaging system (100) includes a radiation source (108) that emits radiation that traverses an examination region (106) and a detection system (114) that detects radiation that traverses the examination region (106) and generates a signal indicative thereof. The detection system (114) includes a first detector array (114 1 - 114 N ) and a second detector array (114 1 - 114 N ). The first and second detector arrays (114 1 - 114 N ) are separately distinct detector arrays and at least one of the detector arrays (114 1 - 114 N ) is moveable with respect to the radiation beam. A reconstructor (116) reconstructs the signal and generates volumetric image data indicative thereof.
摘要翻译：成像系统（100）包括发射穿过检查区域（106）的辐射的辐射源（108）和检测穿过检查区域（106）的辐射并产生指示其的信号的检测系统（114）。检测系统（114）包括第一检测器阵列（1141-144N）和第二检测器阵列（1141-114N）。第一和第二检测器阵列（1141-114N）是分别不同的检测器阵列，并且检测器阵列（1141-114N）中的至少一个可相对于辐射束移动。重构器（116）重建信号并产生指示其的体积图像数据。

4. 发明申请

WO2010109354A3 DATA ACQUISITION 审中-公开
公开(公告)号：WO2010109354A3
公开(公告)日：2010-09-30
申请号：PCT/IB2010/050724
申请日：2010-02-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , CHAPPO, Marc, A. , LUHTA, Randall, P.
发明人： CHAPPO, Marc, A. , LUHTA, Randall, P.
IPC分类号： G01T1/20
摘要： An imaging detector includes a scintillator array (202), a photosensor array (204) optically coupled to the scintillator array (202), a current-to-frequency (I/F) converter (314), and logic (312). The I/F converter (314) includes an integrator (302) and a comparator (310), and converts, during a current integration period, charge output by the photosensor array (204) into a digital signal having a frequency indicative of the charge. The logic (312) sets a gain of the integrator (302) for a next integration period based on the digital signal for the current integration period. In one instance, the gain is increased for the next integration period, relative to the gain for the current integration period, which allows for reducing an amount of bias current injected at an input of the I/F converter (314) to generate a measureable signal in the absence of radiation, which may reduce noise such as shot noise, flicker noise, and/or other noise.

5. 发明申请

WO2010109353A3 DATA ACQUISITION 审中-公开
公开(公告)号：WO2010109353A3
公开(公告)日：2010-09-30
申请号：PCT/IB2010/050723
申请日：2010-02-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , CHAPPO, Marc , LUHTA, Randall, P. , VRETTOS, Christopher, J. , HARWOOD, Brian, E.
发明人： CHAPPO, Marc , LUHTA, Randall, P. , VRETTOS, Christopher, J. , HARWOOD, Brian, E.
IPC分类号： G01T1/20
摘要： An imaging detector includes processing electronics (208) with a thermal coefficient about equal to a negative of a summation of thermal coefficients of a photosensor array (204) and a scintillator array (202) of the detector. In another instance, the imaging detector includes an A/D converter (302) that alternately converts first charge corresponding to impinging radiation into a first signal and second charge corresponding to decaying charge into a second signal and a logic unit (308) that corrects the first signal based on the second signal. In another instance, the imaging detector includes an A/D converter (302), an integrator offset voltage signal determiner (318), and a logic unit (308), wherein the determiner (318) induces an electrical current via an offset voltage, the A/D converter (302) measures the current, and the logic unit (308) calculates a resistance of the photosensor array (204) based on the reference voltage and the measured current.

6. 发明申请

WO2008115275A3 SWEPT ANODE CT SCANNER 审中-公开
标题翻译： SWEPT阳极CT扫描仪
公开(公告)号：WO2008115275A3
公开(公告)日：2008-12-18
申请号：PCT/US2007081467
申请日：2007-10-16
申请人： KONINKL PHILIPS ELECTRONICS NV , HEUSCHER DOMINIC J , LUHTA RANDALL P , CHAPPO MARC A , PIETIG RAINER
发明人： HEUSCHER DOMINIC J , LUHTA RANDALL P , CHAPPO MARC A , PIETIG RAINER
IPC分类号： A61B6/03
CPC分类号： A61B6/4028 , A61B6/032 , A61B6/035 , A61B6/4488
摘要： A computed tomography method includes rotating an electron beam along an anode (104) disposed about an examination region (112) for a plurality of sampling intervals in which x-ray projections are sampled. The electron beam is swept during each sampling interval to generate a plurality of successive focal spots at different focal spot locations during each sampling interval, wherein the focal spots generated in a given sampling interval include a sub-set of the focal spots generated in a previous sampling interval. The x-ray projections radiated from each of the plurality of focal spots is sampled during each sampling interval. The resulting data is reconstructed to generate volumetric image data.
摘要翻译：计算机断层摄影方法包括沿着围绕检查区域（112）设置的阳极（104）旋转电子束，用于其中采样X射线投影的多个采样间隔。在每个采样间隔期间扫描电子束以在每个采样间隔期间在不同焦斑位置处生成多个连续焦斑，其中在给定采样间隔中生成的焦斑包括在先前生成的焦斑的子集采样间隔。在每个采样间隔期间对从多个焦点中的每一个辐射的X射线投影进行采样。所得数据被重建以生成体积图像数据。

7. 发明申请

WO2006064403A3 PULSED X-RAY FOR CONTINUOUS DETECTOR CORRECTION 审中-公开
标题翻译：脉冲X射线用于连续探测器校正
公开(公告)号：WO2006064403A3
公开(公告)日：2006-11-23
申请号：PCT/IB2005054069
申请日：2005-12-05
申请人： KONINKL PHILIPS ELECTRONICS NV , LUHTA RANDALL P , CHAPPO MARC A , HARWOOD BRIAN E , MATTSON RODNEY A , VRETTOS CHRIS J
发明人： LUHTA RANDALL P , CHAPPO MARC A , HARWOOD BRIAN E , MATTSON RODNEY A , VRETTOS CHRIS J
IPC分类号： G01T1/29
CPC分类号： A61B6/032 , A61B6/585 , G01T1/24
摘要： A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation passing through the examination region (16) into electrical detector signals representative of the detected radiation. The detector (18) has at least one temporally changing characteristic such as an offset B(t) or gain A(t). A grid pulse means (64) turns the primary radiation source (14) ON and OFF at a rate between 1000 and 5000 pulses per second, such that at least the offset B(t) is re-measured between 1000 and 5000 times per second and corrected a plurality of times during generation of the detector signals. The gain A(t) is measured by pulsing a second pulsed source (86, 100, 138) of a constant intensity (XRef) with a second pulse means (88). The gain A(t) is re-measured and corrected a plurality of times per second during generation of the detector signals.
摘要翻译：一种射线照相成像设备（10）包括将辐射束投射到检查区域（16）中的主辐射源（14）。检测器（18）将通过检查区域（16）的检测到的辐射转换为表示检测到的辐射的电检测器信号。检测器（18）具有至少一个时间变化的特性，例如偏移量B（t）或增益A（t）。栅格脉冲装置（64）以1000-5000个脉冲每秒的速率开启和关闭主辐射源（14），使得至少偏移量B（t）在每秒1000和5000次之间重新测量并在检测器信号的产生期间多次校正。通过用第二脉冲装置（88）脉冲恒定强度（XRef）的第二脉冲源（86,100,138）来测量增益A（t）。在生成检测器信号期间，每秒重新测量和校正增益A（t）多次。

8. 发明申请

WO2006064403A2 PULSED X-RAY FOR CONTINUOUS DETECTOR CORRECTION 审中-公开
标题翻译：用于连续检测器校正的脉冲X射线
公开(公告)号：WO2006064403A2
公开(公告)日：2006-06-22
申请号：PCT/IB2005/054069
申请日：2005-12-05
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, J.
发明人： LUHTA, Randall, P. , CHAPPO, Marc, A. , HARWOOD, Brian, E. , MATTSON, Rodney, A. , VRETTOS, Chris, J.
CPC分类号： A61B6/032 , A61B6/585 , G01T1/24
摘要： A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation passing through the examination region (16) into electrical detector signals representative of the detected radiation. The detector (18) has at least one temporally changing characteristic such as an offset B(t) or gain A(t). A grid pulse means (64) turns the primary radiation source (14) ON and OFF at a rate between 1000 and 5000 pulses per second, such that at least the offset B(t) is re-measured between 1000 and 5000 times per second and corrected a plurality of times during generation of the detector signals. The gain A(t) is measured by pulsing a second pulsed source (86, 100, 138) of a constant intensity (XRef) with a second pulse means (88). The gain A(t) is re-measured and corrected a plurality of times per second during generation of the detector signals.
摘要翻译：射线成像设备（10）包括将辐射束投射到检查区域（16）中的主要辐射源（14）。检测器（18）将通过检查区域（16）的检测到的辐射转换成代表检测到的辐射的电检测器信号。检测器（18）具有至少一个时变特性，如偏移量B（t）或增益A（t）。电网脉冲装置（64）以每秒1000至5000个脉冲之间的速率使主辐射源（14）接通和断开，使得至少偏移B（t）在每秒1000至5000次之间重新测量并且在检测器信号的产生期间多次校正。通过用第二脉冲装置（88）脉冲具有恒定强度（XRef）的第二脉冲源（86,100,138）来测量增益A（t）。在检测器信号的产生期间，增益A（t）被重新测量和校正多次。

9. 发明申请

WO2011073819A3 RADIATION DOSE BASED IMAGING DETECTOR TILE PARAMETER COMPENSATION 审中-公开
标题翻译：基于辐射剂量的成像检测器层参数补偿
公开(公告)号：WO2011073819A3
公开(公告)日：2012-01-26
申请号：PCT/IB2010055267
申请日：2010-11-18
申请人： KONINKL PHILIPS ELECTRONICS NV , CHAPPO MARC A , LUHTA RANDALL P , MATTSON RODNEY A
发明人： CHAPPO MARC A , LUHTA RANDALL P , MATTSON RODNEY A
IPC分类号： G01T7/00
CPC分类号： G01T7/005
摘要： A detector tile (116) of an imaging system (100) includes a photosensor array (204) and electronics (208) electrically coupled to the photosensor array (204), wherein the electronics includes a dose determiner (402) that determines a deposited dose for the detector tile (116) and generates a signal indicative thereof. In one non-limiting instance, this signal is utilized to correct parameters such as gain and thermal coefficients, which may vary with radiation dose.
摘要翻译：成像系统（100）的检测器瓦片（116）包括光电传感器阵列（204）和电耦合到光电传感器阵列（204）的电子器件（208），其中电子器件包括确定沉积剂量的剂量确定器（402）用于检测器瓦片（116）并产生指示其的信号。在一个非限制性实例中，该信号用于校正诸如增益和热系数之类的参数，其可随辐射剂量而变化。

10. 发明申请

WO2010133984A3 DETECTOR ARRAY WITH PRE-FOCUSED ANTI-SCATTER GRID 审中-公开
标题翻译：检测器阵列具有预先聚焦的抗散射网格
公开(公告)号：WO2010133984A3
公开(公告)日：2011-12-01
申请号：PCT/IB2010051630
申请日：2010-04-14
申请人： KONINKL PHILIPS ELECTRONICS NV , LUHTA RANDALL P , MATTSON RODNEY A , HARWOOD BRIAN E
发明人： LUHTA RANDALL P , MATTSON RODNEY A , HARWOOD BRIAN E
IPC分类号： G01T1/29
CPC分类号： G01T1/2985
摘要： A radiation sensitive detector array includes a plurality of detector modules (118) extending along a z-axis direction and aligned along an x-axis direction with respect to the imaging system (100). At least one of the detector modules (118) includes a module backbone (124) and at least one detector tile (122). The at least one detector tile (122) is coupled to the module backbone (124) through a non-threaded fastener (142). The at least one detector tile (122) includes a two-dimensional detector (126) and a two-dimensional anti-scatter grid (128) that is focused at a focal spot (112) of an imaging system (100).
摘要翻译：辐射敏感检测器阵列包括沿着z轴方向延伸并且相对于成像系统（100）沿x轴方向排列的多个检测器模块（118）。检测器模块（118）中的至少一个包括模块主干（124）和至少一个检测器瓦片（122）。至少一个检测器瓦片（122）通过非螺纹紧固件（142）联接到模块主干（124）。至少一个检测器瓦片（122）包括聚焦在成像系统（100）的焦点（112）处的二维检测器（126）和二维防散射网格（128）。

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