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1. 发明申请

WO2005040854A3 METHOD AND APPARATUS FOR REVERSING PERFORMANCE DEGRADATION IN SEMI-CONDUCTOR DETECTORS 审中-公开
标题翻译：用于反转半导体检测器性能降低的方法和装置
公开(公告)号：WO2005040854A3
公开(公告)日：2005-07-28
申请号：PCT/IB2004052001
申请日：2004-10-06
申请人： KONINKL PHILIPS ELECTRONICS NV , 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：一种系统反转在辐射检测器组件中使用的半导体辐射检测元件（44）的降解的能量分辨率。与施加正向偏压之后的能量分辨率的初始水平相比，装置（38）识别表现出降低的能量分辨率的半导体元件。 A装置（40）通过施加反向偏压将劣化的半导体元件恢复到初始的能量分辨率水平。加热器（74）通过提供升高的环境温度来加速恢复过程。屏蔽装置（48）屏蔽新的半导体元件以识别易于退化的元件。正向偏压由正向偏压装置（50）施加以引起劣化。加热器（52）增加了环境温度，以加速新半导体的性能下降。元素。在安装在检测器中之前，将经鉴定的可降解元件用反向偏压处理。

2. 发明申请

WO2008011436A2 METHOD AND SYSTEM FOR IMPROVED TOF PET RECONSTRUCTION 审中-公开
标题翻译：用于改进TOF PET重建的方法和系统
公开(公告)号：WO2008011436A2
公开(公告)日：2008-01-24
申请号：PCT/US2007073730
申请日：2007-07-18
申请人： KONINKL PHILIPS ELECTRONICS NV , LAURENCE THOMAS , GRIESMER JEROME J , KOLTHAMMER JEFFREY A , THON ANDREAS , BRINKS RALPH , DEGENHARDT CARSTEN
发明人： LAURENCE THOMAS , GRIESMER JEROME J , KOLTHAMMER JEFFREY A , THON ANDREAS , BRINKS RALPH , DEGENHARDT CARSTEN
IPC分类号： G01T1/29
CPC分类号： G01T1/2985
摘要： A time of flight positron emission tomography apparatus (100) includes a detector (106), a data acquisition system (120), a coincidence system (122) and a reconstructor (129). Various elements of an imaging chain influence the temporal resolution of the system (100) so that positron data collected along different lines of response is characterized by different temporal resolutions. The different temporal resolutions are used to estimate the positions of detected events along their respective lines of response.
摘要翻译：飞行时间正电子发射断层摄影装置（100）包括检测器（106），数据采集系统（120），重合系统（122）和重构器（129）。成像链的各种要素影响系统（100）的时间分辨率，以便沿着不同响应线收集的正电子数据以不同的时间分辨率为特征。使用不同的时间分辨率来估计沿着它们各自的响应线的检测到的事件的位置。

3. 发明申请

WO2011158134A3 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：WO2011158134A3
公开(公告)日：2012-04-12
申请号：PCT/IB2011051837
申请日：2011-04-27
申请人： KONINKL PHILIPS ELECTRONICS NV , 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

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。

5. 发明申请

WO2009024895A3 REFLECTOR AND LIGHT COLLIMATOR ARRANGEMENT FOR IMPROVED LIGHT COLLECTION IN SCINTILLATION DETECTORS 审中-公开
标题翻译：闪光灯和光度调整装置，用于改进闪烁探测器的光线收集
公开(公告)号：WO2009024895A3
公开(公告)日：2009-04-30
申请号：PCT/IB2008053230
申请日：2008-08-12
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , 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 , G01T1/202
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，当伽玛射线撞击闪烁体时，会产生一阵可见光。该光由光电探测器检测并由下游电子器件处理。希望尽可能多地利用光线并将其送到光电探测器。在探测器元件（18）中，第一反射层（44）部分地包围闪烁晶体（34）。第一反射层（44）扩散闪烁光。第二反射层（46）和支撑部件反射层（48）防止光通过除闪烁体（34）的发光面（36）之外的任何路径离开闪烁晶体（34）。在另一个实施例中，聚光器（50）耦合到闪烁器（34）并且将漫射光引导到光电探测器（38）的光敏部分上。反射层（44,46,48）和聚光器（50）确保由闪烁器（34）发射的全部或几乎全部光由光检测器（38）接收。

6. 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.

7. 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。

8. 发明申请

WO2009004521A2 THERMALLY STABILIZED PET DETECTOR FOR HYBRID PET-MR SYSTEM 审中-公开
标题翻译：用于混合PET-MR系统的热稳定PET检测器
公开(公告)号：WO2009004521A2
公开(公告)日：2009-01-08
申请号：PCT/IB2008052477
申请日：2008-06-23
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS INTELLECTUAL PROPERTY , 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
CPC分类号： G01T1/1603 , G01R33/3806 , G01R33/3856 , G01R33/481
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 (Te, Td). 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.
摘要翻译：在混合PET-MR系统中，将PET检测器元件（30）添加到孔（14）中，靠近梯度线圈（16）。供应流体冷却剂以从PET检测器元件（30）传递热量。绝热（80）使流体冷却剂和PET检测器元件（30）与梯度线圈（16）绝缘。在一些实施例中，第一冷却剂路径（90）与电子设备热连通，第二冷却剂路径（92）与光检测器热连通，并且热障（94,96）布置在第一和第第二冷却剂路径使得第一和第二冷却剂路径可处于不同的温度（Te，Td）。在一些实施例中，密封的热管（110）与散热器热连通，使得热管中的工作流体经历蒸发/冷凝循环以将热量从检测器元件传递到散热器。

9. 发明申请

WO2008011436A3 METHOD AND SYSTEM FOR IMPROVED TOF PET RECONSTRUCTION 审中-公开
公开(公告)号：WO2008011436A3
公开(公告)日：2008-01-24
申请号：PCT/US2007/073730
申请日：2007-07-18
申请人： KONINKLIJKE PHILIPS ELECTRONICS N. V. , LAURENCE, Thomas , GRIESMER, Jerome, J. , KOLTHAMMER, Jeffrey, A. , THON, Andreas , BRINKS, Ralph , DEGENHARDT, Carsten
发明人： LAURENCE, Thomas , GRIESMER, Jerome, J. , KOLTHAMMER, Jeffrey, A. , THON, Andreas , BRINKS, Ralph , DEGENHARDT, Carsten
IPC分类号： G01T1/29
摘要： A time of flight positron emission tomography apparatus (100) includes a detector (106), a data acquisition system (120), a coincidence system (122) and a reconstructor (129). Various elements of an imaging chain influence the temporal resolution of the system (100) so that positron data collected along different lines of response is characterized by different temporal resolutions. The different temporal resolutions are used to estimate the positions of detected events along their respective lines of response.

10. 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）。

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