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1. 发明申请

WO2003046610A1 METHOD OF COOLING HIGH DENSITY ELECTRONICS 审中-公开
标题翻译：冷却高密度电子学的方法
公开(公告)号：WO2003046610A1
公开(公告)日：2003-06-05
申请号：PCT/US2001/043392
申请日：2001-11-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： GRIESMER, Jerome, J. , KLINE, Barry, D.
IPC分类号： G01T1/24
CPC分类号： G01T1/2018
摘要： For nuclear imaging of a subject injected with a radioactive isotope, each detector array (18) is associated with event analyzer circuitry (64) and detector array signals due to gamma ray emissions indicative of nuclear decay are processed and reconstructed into an image of the subject anatomy. Cadmium zinc telluride (CZT) crystals (20) outputs are amplified by complex low-noise integrated preamplifier circuits (P-ASIC 60) dissipating 300-500 mW each. Additionally, low-noise linear voltage regulators (66) providing regulated DC power to assure delivery of clean power to the P-ASIC (60), dissipate 150-250 mW each. In order to facilitate cooling of electrical components (60,66) which account for most of the dissipated power on circuit boards (62), the boards (62) are arranged parallel to each other and extend perpendicularly away from the detector array (18) to provide channels between the boards (62) through which cooling air is drawn by an array of fans.
摘要翻译：对于注射放射性同位素的受试者的核成像，每个检测器阵列（18）与事件分析器电路（64）相关联，并且由于指示核衰变的伽马射线辐射引起的检测器阵列信号被处理并重建为受试者的图像解剖学。镉锌碲化物（CZT）晶体（20）输出由复杂的低噪声集成前置放大器电路（P-ASIC 60）放大，每个耗散300-500 mW。另外，提供稳压直流电源以确保向P-ASIC（60）传送清洁电力的低噪声线性稳压器（66）可以耗散150-250 mW。为了便于对电路板（62）上大部分耗散功率的电气部件（60,66）的冷却，板（62）彼此平行地布置并垂直于检测器阵列（18）延伸，以在通过一组风扇吸入冷却空气的板（62）之间提供通道。

2. 发明申请

WO2002071098A3 HIGH VOLTAGE DISTRIBUTION SYSTEM FOR CZT ARRAYS 审中-公开
公开(公告)号：WO2002071098A3
公开(公告)日：2002-09-12
申请号：PCT/US2001/043390
申请日：2001-11-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V.
发明人： GRIESMER, Jerome, J. , KLINE, Barry, D.
IPC分类号： G01T1/164
摘要： A subject (10) is disposed adjacent a detector array (18). The subject (10) is injected with a radioactive isotope (14) and y-ray emissions indicative of nuclear decay are detected at the detector array (18) . The detector array generates electrical signals in response to each y-ray which signals are processed (64) and reconstructed (46) into an image representation of the anatomy of the subject (10). A high voltage bias is applied across the detector array. The bias is applied by a set of bias strips (80) and an electrically isolated common busbar (82) built onto a sheet of flexible circuit material. This flexible circuit (81) is highly transmissive to gamma radiation in the energy range 60-180 keV which is typically used in diagnostic nuclear medicine. Connections between the common busbar (82) and the bias strips (80) are made by resistors (92) on individual detector cards. Each bias strip is capacitively coupled (68) to the local ground on each detector card to form a Faraday shield around each detector array. Bias strips set above groups of detector arrays and electrical pads (86) are disposed along opposite faces. A substantially uniform DC electric field is set up between the strips and pads across the detector array. The strips and pads substantially surround groups of arrays defining Faraday cages. Capacitive filters (68) connected with the strips filter out noise. The capacitor's connection to the P-ASIC ground completes a Faraday Shield aroung the highly sensitive detector array (18). Resistors (92) electrically isolate each of the Faraday cages. Capacitive filters (68) connected with the strips filter out noise. The capacitor's connection to the P-ASIC ground completes a Faraday shield around the highly sensitive detector array (18). Resistors (92) electrically isolate each of the Faraday cages. Additionally, light baffles are added to prevent visible light from generating a signal in the detector array (18). Collimator vanes (16) are supported on a ground layer (100) which is separated from the conductive strips (80) by a resilient foam layer (102).

3. 发明申请

WO2011158134A2 AUTOMATED CRYSTAL IDENTIFICATION ACHIEVED VIA MODIFIABLE TEMPLATES 审中-公开
标题翻译：通过可修改模板实现的自动化晶体鉴定
公开(公告)号：WO2011158134A2
公开(公告)日：2011-12-22
申请号：PCT/IB2011/051837
申请日：2011-04-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , LAURENCE, Thomas , WANG, Sharon, X. , GRIESMER, Jerome, J.
发明人： LAURENCE, Thomas , WANG, Sharon, X. , GRIESMER, Jerome, J.
IPC分类号： G01T1/164
CPC分类号： G06K9/78 , G01T1/1647
摘要： A nuclear imaging system (10) includes a crystal identification system (40) which receives a flood image (30) which includes a plurality of peaks, each peak responsive to radiation detected by a corresponding scintillator crystal. A crystal identification processor (42) partitions the flood image (30) into a plurality of regions (56), each region being masked to correspond to one of an array of nuclear detectors. A model image (62) is generated in which the at least one Gaussian models represents the identified peaks. Misidentified peaks in the model image (62) in which locations of the peaks in the flood image (30) differ from the corresponding scintillator crystal are determined and the locations of the misidentified peaks in the flood image (30) are corrected. A calibration processor (43) corrects geometric distortions in acquired projection data according to the corrected peaks.
摘要翻译：核成像系统（10）包括晶体识别系统（40），其接收包括多个峰值的泛洪图像（30），每个峰值响应于由相应的闪烁体晶体检测的辐射。晶体识别处理器（42）将洪水图像（30）分割成多个区域（56），每个区域被掩蔽以对应于核探测器阵列之一。产生模型图像（62），其中至少一个高斯模型表示所识别的峰值。确定在洪水图像（30）中的峰的位置与相应的闪烁体晶体不同的模型图像（62）中的误识别的峰，并校正洪水图像（30）中的错误识别的峰的位置。校准处理器（43）根据校正的峰值校正获取的投影数据中的几何失真。

4. 发明申请

WO2009004521A3 THERMALLY STABILIZED PET DETECTOR FOR HYBRID PET-MR SYSTEM 审中-公开
公开(公告)号：WO2009004521A3
公开(公告)日：2009-01-08
申请号：PCT/IB2008/052477
申请日：2008-06-23
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , MORICH, Michael, A. , DEMEESTER, Gordon, D. , GRIESMER, Jerome, J. , SOLF, Torsten, J. , SCHULZ, Volkmar , WEISSLER, Bjoern
发明人： MORICH, Michael, A. , DEMEESTER, Gordon, D. , GRIESMER, Jerome, J. , SOLF, Torsten, J. , SCHULZ, Volkmar , WEISSLER, Bjoern
IPC分类号： G01T1/16 , G01T7/00
摘要： In a hybrid PET-MR system, PET detector elements (30) are added in the bore (14), in close proximity to the gradient coils (16). Fluid coolant is supplied to transfer heat from the PET detector elements (30). Thermal insulation (80) insulates the fluid coolant and the PET detector elements (30) from the gradient coils (16). In some embodiments, a first coolant path (90) is in thermal communication with the electronics, a second coolant path (92) is in thermal communication with the light detectors, and a thermal barrier (94, 96) is arranged between the first and second coolant paths such that the first and second coolant paths can be at different temperatures (T e , T d ). In some embodiments a sealed heat pipe (110) is in thermal communication with a heat sink such that working fluid in the heat pipe undergoes vaporization/condensation cycling to transfer heat from the detector elements to the heat sink.

5. 发明申请

WO2009024895A2 REFLECTOR AND LIGHT COLLIMATOR ARRANGEMENT FOR IMPROVED LIGHT COLLECTION IN SCINTILLATION DETECTORS 审中-公开
标题翻译：反射器和光收缩装置改进光学检测器中的光收集
公开(公告)号：WO2009024895A2
公开(公告)日：2009-02-26
申请号：PCT/IB2008/053230
申请日：2008-08-12
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH , SCHULZ, Volkmar , DEGENHARDT, Carsten , GRIESMER, Jerome, J. , COOKE, Steven, E.
发明人： SCHULZ, Volkmar , DEGENHARDT, Carsten , GRIESMER, Jerome, J. , COOKE, Steven, E.
IPC分类号： G01T1/20
CPC分类号： G01T1/2002 , G01T1/202
摘要： In nuclear imaging, when a gamma ray strikes a scintillator, a burst of visible light is created. That light is detected by a photodetector and processed by downstream electronics. It is desirable to harness as much of the burst of light as possible and get it to the photodetector. In a detector element (18), a first reflective layer (44) partially envelops a scintillation crystal (34). The first reflective layer (44) diffuses the scintillated light. A second reflective layer (46) and a support component reflective layer (48) prevent the light from leaving the scintillation crystal (34) by any route except a light emitting face (36) of the scintillator (34). In another embodiment, a light concentrator (50) is coupled to the scintillator (34) and channels the diffuse light onto a light sensitive portion of a photodetector (38). The reflective layers (44, 46, 48) and the concentrator (50) ensure that all or nearly all of the light emitted by the scintillator (34) is received by the photodetector (38).
摘要翻译：在核成像中，当伽马射线撞击闪烁体时，产生可见光的突发。该光被光检测器检测并由下游电子器件处理。最好利用尽可能多的光线，并将其送到光检测器。在检测器元件（18）中，第一反射层（44）部分地包围闪烁晶体（34）。第一反射层（44）扩散闪烁的光。第二反射层（46）和支撑部件反射层（48）通过除了闪烁体（34）的发光面（36）之外的任何路线防止光离开闪烁晶体（34）。在另一个实施例中，聚光器（50）耦合到闪烁体（34），并将漫射光通过光电检测器（38）的光敏部分。反射层（44,46,48）和聚光器（50）确保由闪烁体（34）发射的全部或几乎全部的光被光电检测器（38）接收。

6. 发明申请

WO2007079461A1 CALIBRATING THE COINCIDENCE TIMING UTILIZED IN TIME-OF-FLIGHT MEASUREMENTS IN POSITRON EMISSION TOMOGRAPHY 审中-公开
标题翻译：校准在排气量测量中使用飞行时间测量的协调时间
公开(公告)号：WO2007079461A1
公开(公告)日：2007-07-12
申请号：PCT/US2007/060004
申请日：2007-01-02
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , GRIESMER, Jerome, J. , LAURENCE, Thomas, L.
发明人： GRIESMER, Jerome, J. , LAURENCE, Thomas, L.
IPC分类号： G01T1/29
CPC分类号： G01T1/2985 , A61B6/037
摘要： A method for calibrating an imaging system (10) includes coincident detecting scatter radiation events from a calibration source (14) located within a bore (16) of the imaging system (10). The scatter radiation events are subsequently used to compute calibration time offsets for each detector channel (20) in the imaging system (10). Each detector channel (20) is then calibrated with respective calibration time adjustments.
摘要翻译：用于校准成像系统（10）的方法包括来自位于成像系统（10）的孔（16）内的校准源（14）的重合检测散射辐射事件。散射辐射事件随后用于计算成像系统（10）中每个检测器通道（20）的校准时间偏移。然后用相应的校准时间调整校准每个检测器通道（20）。

7. 发明申请

WO2005040854A2 METHOD AND APPARATUS FOR REVERSING PERFORMANCE DEGRADATION IN SEMI-CONDUCTOR DETECTORS 审中-公开
标题翻译：用于在半导体探测器中反转性能退化的方法和设备
公开(公告)号：WO2005040854A2
公开(公告)日：2005-05-06
申请号：PCT/IB2004/052001
申请日：2004-10-06
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , GAGNON, Daniel , GRIESMER, Jerome, J.
发明人： GAGNON, Daniel , GRIESMER, Jerome, J.
IPC分类号： G01T1/24
CPC分类号： G01T1/249 , G01T1/24
摘要： A system reverses degraded energy resolution of semiconductor radiation detection elements (44) which are used in a radiation detector assembly. A means (38) identifies semiconductor elements which exhibit degraded energy resolution as compared to an initial level of energy resolution after application of the forward bias. A means (40) restores the degraded semiconductor elements to the initial level of energy resolution by applying the reverse bias. A heater (74) accelerates the restoration process by supplying an elevated ambient temperature. A screening means (48) screens new semiconductor elements to identify the elements which are susceptible to degradation. A forward bias is applied by a forward bias means (50) to induce the degradation. A heater (52) increases an ambient temperature to accelerate the performance degradation in the new semiconductor. elements. The identified degradable elements are treated with a reverse bias prior to installation in the detector.
摘要翻译：系统逆转在辐射检测器组件中使用的半导体辐射检测元件（44）的退化能量分辨率。装置（38）识别在施加正向偏置之后与能量分辨率的初始水平相比表现出降低的能量分辨率的半导体元件。装置（40）通过施加反向偏压将退化的半导体元件恢复到能量分辨率的初始水平。加热器（74）通过提供升高的环境温度来加速恢复过程。筛选装置（48）筛选新的半导体元件以识别易受降解影响的元素。正向偏压由正向偏压装置（50）施加以引起退化。加热器（52）增加环境温度以加速新半导体中的性能下降。元素。确定的可降解元件在安装在检测器中之前用反向偏压进行处理。

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