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1. 发明申请

US20130327932A1 METHODS AND SYSTEMS FOR GAIN CALIBRATION OF GAMMA RAY DETECTORS 有权
标题翻译：用于伽马射线探测器增益校准的方法和系统
公开(公告)号：US20130327932A1
公开(公告)日：2013-12-12
申请号：US13492439
申请日：2012-06-08
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
IPC分类号： G01T1/20 , G01T1/166 , G01T1/24
CPC分类号： A61B6/03 , A61B6/585 , G01T1/208 , G01T1/248
摘要： Methods and systems for gain calibration of a gamma ray detector are provided. One method includes measuring signals generated by one or more light sensors of a gamma ray detector, generating one or more derived curves using the measured signals as a function of bias voltage and identifying a transition point in the one or more derived curves. The method also includes determining a breakdown voltage of the one or more light sensors using the identified transition point and setting a bias of the one or more light sensors based on the determined breakdown voltage.
摘要翻译：提供了用于γ射线检测器的增益校准的方法和系统。一种方法包括测量由伽马射线检测器的一个或多个光传感器产生的信号，使用测量的信号作为偏置电压的函数产生一个或多个导出曲线，并且识别所述一个或多个导出曲线中的转变点。该方法还包括使用所识别的转变点确定一个或多个光传感器的击穿电压，并且基于所确定的击穿电压来设置一个或多个光传感器的偏置。

2. 发明授权

US08907290B2 Methods and systems for gain calibration of gamma ray detectors 有权
标题翻译：伽马射线探测器增益校准的方法和系统
公开(公告)号：US08907290B2
公开(公告)日：2014-12-09
申请号：US13492439
申请日：2012-06-08
申请人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
发明人： Chang Lyong Kim , David Leo McDaniel , James Lindgren Malaney , William Todd Peterson , Vi-Hoa Tran , Ashwin Ashok Wagadarikar
IPC分类号： G01T1/24
CPC分类号： A61B6/03 , A61B6/585 , G01T1/208 , G01T1/248
摘要： A method for gain calibration of a gamma ray detector includes measuring signals generated by one or more light sensors of a gamma ray detector, generating one or more derived curves using the measured signals as a function of bias voltage and identifying a transition point in the one or more derived curves. The method also includes determining a breakdown voltage of the one or more light sensors using the identified transition point and setting a bias of the one or more light sensors based on the determined breakdown voltage.
摘要翻译：用于γ射线检测器的增益校准的方法包括测量由伽马射线检测器的一个或多个光传感器产生的信号，使用测量的信号作为偏置电压的函数产生一个或多个导出曲线，并且识别一个转换点或更多的派生曲线。该方法还包括使用所识别的转变点确定一个或多个光传感器的击穿电压，并且基于所确定的击穿电压来设置一个或多个光传感器的偏置。

3. 发明申请

US20130193330A1 SYSTEM AND METHOD FOR PIXELATED DETECTOR CALIBRATION 有权
标题翻译：用于像素检测器校准的系统和方法
公开(公告)号：US20130193330A1
公开(公告)日：2013-08-01
申请号：US13360381
申请日：2012-01-27
申请人： Ashwin Ashok Wagadarikar , Ravindra Mohan Manjeshwar , Sergei Ivanovich Dolinsky
发明人： Ashwin Ashok Wagadarikar , Ravindra Mohan Manjeshwar , Sergei Ivanovich Dolinsky
IPC分类号： G01T1/202 , G01T1/164
CPC分类号： G01T1/1648
摘要： Present embodiments relate to the calibration of detectors having one or more arrays of pixelated detectors. According to an embodiment, a method includes detecting optical outputs generated by a plurality of scintillation crystals of a detector with an array of pixelated detectors, generating, with the array of pixelated detectors, respective signals indicative of the optical outputs, generating, from the respective signals, a unique energy spectrum correlated to each of the plurality of scintillation crystals, grouping subsets of the plurality of scintillation crystals into macrocrystals, determining a representative energy spectrum peak for each macrocrystal based on the respective energy spectra of the scintillation crystals in the macrocrystal, comparing a value of the representative energy spectrum peak for each macrocrystal with a target peak value, and adjusting an operating parameter of at least one pixelated detector in the array of pixelated detectors as a result of the comparison.
摘要翻译：本实施例涉及具有一个或多个像素化检测器阵列的检测器的校准。根据实施例，一种方法包括检测由具有像素化检测器阵列的检测器的多个闪烁晶体产生的光输出，利用像素化检测器阵列产生指示光输出的相应信号，从相应的信号，与多个闪烁晶体中的每一个相关的独特的能量谱，将多个闪烁晶体的子集分组为大的晶体，基于宏晶中的闪烁晶体的各自的能谱确定每个宏晶的代表性能谱峰，将每个宏晶的代表性能谱峰值与目标峰值进行比较，并且作为比较的结果，调整像素化检测器阵列中的至少一个像素化检测器的操作参数。

4. 发明授权

US08809793B2 System and method for pixelated detector calibration 有权
标题翻译：用于像素化检测器校准的系统和方法
公开(公告)号：US08809793B2
公开(公告)日：2014-08-19
申请号：US13360381
申请日：2012-01-27
申请人： Ashwin Ashok Wagadarikar , Ravindra Mohan Manjeshwar , Sergei Ivanovich Dolinsky
发明人： Ashwin Ashok Wagadarikar , Ravindra Mohan Manjeshwar , Sergei Ivanovich Dolinsky
IPC分类号： G01T1/166
CPC分类号： G01T1/1648
摘要： Present embodiments relate to the calibration of detectors having one or more arrays of pixelated detectors. According to an embodiment, a method includes detecting optical outputs generated by a plurality of scintillation crystals of a detector with an array of pixelated detectors, generating, with the array of pixelated detectors, respective signals indicative of the optical outputs, generating, from the respective signals, a unique energy spectrum correlated to each of the plurality of scintillation crystals, grouping subsets of the plurality of scintillation crystals into macrocrystals, determining a representative energy spectrum peak for each macrocrystal based on the respective energy spectra of the scintillation crystals in the macrocrystal, comparing a value of the representative energy spectrum peak for each macrocrystal with a target peak value, and adjusting an operating parameter of at least one pixelated detector in the array of pixelated detectors as a result of the comparison.
摘要翻译：本实施例涉及具有一个或多个像素化检测器阵列的检测器的校准。根据实施例，一种方法包括检测由具有像素化检测器阵列的检测器的多个闪烁晶体产生的光输出，利用像素化检测器阵列产生指示光输出的相应信号，从相应的信号，与多个闪烁晶体中的每一个相关的独特的能量谱，将多个闪烁晶体的子集分组为大的晶体，基于宏晶中的闪烁晶体的各自的能谱确定每个宏晶的代表性能谱峰，将每个宏晶的代表性能谱峰值与目标峰值进行比较，并且作为比较的结果，调整像素化检测器阵列中的至少一个像素化检测器的操作参数。

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