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1. 发明申请

US20160061968A1 Integrated Digital Discriminator For a Silicon Photomultiplier 有权
标题翻译：硅光电倍增管的集成数字鉴相器
公开(公告)号：US20160061968A1
公开(公告)日：2016-03-03
申请号：US14938894
申请日：2015-11-12
申请人： Siemens Medical Solutions USA, Inc.
发明人： Peter Hansen , Michael Casey , Stefan B. Siegel
IPC分类号： G01T1/29 , H03K5/135 , H03K3/037
CPC分类号： G01J1/44 , G01T1/248 , G01T1/2985 , H03K3/037 , H03K5/135 , H03K2005/00078
摘要： Apparatuses and methods are provided that minimize the effects of dark-current pulses. For example, in one embodiment of the invention, a method is provided where a first pixel is struck (i.e., a primary pixel). Pixels struck within a fixed time frame after the primary pixel is struck are referred to as secondary pixels. After a short fixed time frame has expired, the number of primary and secondary pixels is added. If the count exceeds a threshold, the primary pixel was activated by the first (or early) photon from a true gamma event. If the threshold is not met then it is likely the primary pixel generated a dark pulse that should be ignored.
摘要翻译：提供了使暗电流脉冲的影响最小化的装置和方法。例如，在本发明的一个实施例中，提供了一种方法，其中第一像素被撞击（即，主像素）。在主要像素被击打之后的固定时间帧内撞击的像素被称为次要像素。在短的固定时间段到期后，添加主要和次要像素的数量。如果计数超过阈值，则主像素由来自真实伽马事件的第一（或早）光子激活。如果阈值不满足，则主要像素可能产生应忽略的暗脉冲。

2. 发明申请

US20200041665A1 Silicon Photomultiplier Based TOF-PET Detector 审中-公开
公开(公告)号：US20200041665A1
公开(公告)日：2020-02-06
申请号：US16596901
申请日：2019-10-09
申请人： Siemens Medical Solutions USA, Inc.
发明人： Robert A. Mintzer , James Christopher Arnott , Mehmet Aykac , Johannes Breuer , Sanghee Cho , Peter Hansen , Maciej P. Kapusta , James L. Corbeil , Nan Zhang
IPC分类号： G01T1/208 , G01T1/164 , A61B6/00 , G01T1/20 , G01T1/29 , A61B6/03 , G01T1/16
摘要： A scintillation block detector employs an array of optically air coupled scintillation pixels, the array being wrapped in reflector material and optically coupled to an array of silicon photomultiplier light sensors with common-cathode signal timing pickoff and individual anode signal position and energy determination. The design features afford an optimized combination of photopeak energy event sensitivity and timing, while reducing electronic circuit complexity and power requirements, and easing necessary fabrication methods. Four of these small blocks, or “miniblocks,” can be combined as optically and electrically separated quadrants of a larger single detector in order to recover detection efficiency that would otherwise be lost due to scattering between them. Events are validated for total energy by summing the contributions from the four quadrants, while the trigger is generated from either the timing signal of the quadrant with the highest energy deposition, the first timing signal derived from the four quadrant time-pickoff signals, or a statistically optimum combination of the individual quadrant event times, so as to maintain good timing for scatter events. This further reduces the number of electronic channels required per unit detector area while avoiding the timing degradation characteristic of excessively large SiPM arrays.

3. 发明授权

US09903756B2 Integrated digital discriminator for a silicon photomultiplier 有权
公开(公告)号：US09903756B2
公开(公告)日：2018-02-27
申请号：US14938889
申请日：2015-11-12
申请人： Siemens Medical Solutions USA, Inc.
发明人： Peter Hansen , Michael Casey , Stefan B. Siegel
IPC分类号： G01N15/06 , G01J1/44 , G01T1/24 , G01T1/29 , H03K3/037 , H03K5/135 , H03K5/00
CPC分类号： G01J1/44 , G01T1/248 , G01T1/2985 , H03K3/037 , H03K5/135 , H03K2005/00078
摘要： Apparatuses and methods are provided that minimize the effects of dark-current pulses. For example, in one embodiment of the invention, a method is provided where a first pixel is struck (i.e., a primary pixel). Pixels struck within a fixed time frame after the primary pixel is struck are referred to as secondary pixels. After a short fixed time frame has expired, the number of primary and secondary pixels is added. If the count exceeds a threshold, the primary pixel was activated by the first (or early) photon from a true gamma event. If the threshold is not met then it is likely the primary pixel generated a dark pulse that should be ignored.

4. 发明申请

US20160061659A1 Integrated Digital Discriminator For a Silicon Photomultiplier 有权
公开(公告)号：US20160061659A1
公开(公告)日：2016-03-03
申请号：US14938889
申请日：2015-11-12
申请人： Siemens Medical Solutions USA, Inc.
发明人： Peter Hansen , Michael Casey , Stefan B. Siegel
IPC分类号： G01J1/44
CPC分类号： G01J1/44 , G01T1/248 , G01T1/2985 , H03K3/037 , H03K5/135 , H03K2005/00078
摘要： Apparatuses and methods are provided that minimize the effects of dark-current pulses. For example, in one embodiment of the invention, a method is provided where a first pixel is struck (i.e., a primary pixel). Pixels struck within a fixed time frame after the primary pixel is struck are referred to as secondary pixels. After a short fixed time frame has expired, the number of primary and secondary pixels is added. If the count exceeds a threshold, the primary pixel was activated by the first (or early) photon from a true gamma event. If the threshold is not met then it is likely the primary pixel generated a dark pulse that should be ignored.

5. 发明授权

US11828891B2 Silicon photomultiplier based TOF-PET detector 有权
公开(公告)号：US11828891B2
公开(公告)日：2023-11-28
申请号：US16596901
申请日：2019-10-09
申请人： Siemens Medical Solutions USA, Inc.
发明人： Robert A. Mintzer , James Christopher Arnott , Mehmet Aykac , Johannes Breuer , Sanghee Cho , Peter Hansen , Maciej P. Kapusta , James L. Corbeil , Nan Zhang
IPC分类号： G01T1/20 , G01T1/208 , G01T1/29 , A61B6/03 , G01T1/164 , A61B6/00 , G01T1/16 , G01R33/48
CPC分类号： G01T1/208 , A61B6/037 , A61B6/4233 , A61B6/4241 , A61B6/4258 , G01T1/1606 , G01T1/1647 , G01T1/20183 , G01T1/20184 , G01T1/20185 , G01T1/2985 , A61B6/032 , A61B6/4417 , G01R33/481
摘要： A scintillation block detector employs an array of optically air coupled scintillation pixels, the array being wrapped in reflector material and optically coupled to an array of silicon photomultiplier light sensors with common-cathode signal timing pickoff and individual anode signal position and energy determination. The design features afford an optimized combination of photopeak energy event sensitivity and timing, while reducing electronic circuit complexity and power requirements, and easing necessary fabrication methods. Four of these small blocks, or “miniblocks,” can be combined as optically and electrically separated quadrants of a larger single detector in order to recover detection efficiency that would otherwise be lost due to scattering between them. Events are validated for total energy by summing the contributions from the four quadrants, while the trigger is generated from either the timing signal of the quadrant with the highest energy deposition, the first timing signal derived from the four quadrant time-pickoff signals, or a statistically optimum combination of the individual quadrant event times, so as to maintain good timing for scatter events. This further reduces the number of electronic channels required per unit detector area while avoiding the timing degradation characteristic of excessively large SiPM arrays.

6. 发明授权

US10527740B2 Silicon photomultiplier based TOF-PET detector 有权
公开(公告)号：US10527740B2
公开(公告)日：2020-01-07
申请号：US14244312
申请日：2014-04-03
申请人： Siemens Medical Solutions USA, Inc.
发明人： Robert A. Mintzer , James Christopher Arnott , Mehmet Aykac , Johannes Breuer , Sanghee Cho , Peter Hansen , Maciej P. Kapusta , James L. Corbeil , Nan Zhang
IPC分类号： G01T1/20 , G01T1/208 , G01T1/29 , A61B6/03 , G01T1/16 , G01R33/48 , A61B6/00
摘要： A scintillation block detector employs an array of optically air coupled scintillation pixels, the array being wrapped in reflector material and optically coupled to an array of silicon photomultiplier light sensors with common-cathode signal timing pickoff and individual anode signal position and energy determination. The design features afford an optimized combination of photopeak energy event sensitivity and timing, while reducing electronic circuit complexity and power requirements, and easing necessary fabrication methods. Four of these small blocks, or “miniblocks,” can be combined as optically and electrically separated quadrants of a larger single detector in order to recover detection efficiency that would otherwise be lost due to scattering between them. Events are validated for total energy by summing the contributions from the four quadrants, while the trigger is generated from either the timing signal of the quadrant with the highest energy deposition, the first timing signal derived from the four quadrant time-pickoff signals, or a statistically optimum combination of the individual quadrant event times, so as to maintain good timing for scatter events. This further reduces the number of electronic channels required per unit detector area while avoiding the timing degradation characteristic of excessively large SiPM arrays.

7. 发明授权

US09618389B2 Integrated digital discriminator for a silicon photomultiplier 有权
公开(公告)号：US09618389B2
公开(公告)日：2017-04-11
申请号：US14938894
申请日：2015-11-12
申请人： Siemens Medical Solutions USA, Inc.
发明人： Peter Hansen , Michael Casey , Stephan Siegel
IPC分类号： G01F15/06 , G01J1/44 , G01T1/24 , G01T1/29 , H03K3/037 , H03K5/135 , H03K5/00
CPC分类号： G01J1/44 , G01T1/248 , G01T1/2985 , H03K3/037 , H03K5/135 , H03K2005/00078
摘要： Apparatuses and methods are provided that minimize the effects of dark-current pulses. For example, in one embodiment of the invention, a method is provided where a first pixel is struck (i.e., a primary pixel). Pixels struck within a fixed time frame after the primary pixel is struck are referred to as secondary pixels. After a short fixed time frame has expired, the number of primary and secondary pixels is added. If the count exceeds a threshold, the primary pixel was activated by the first (or early) photon from a true gamma event. If the threshold is not met then it is likely the primary pixel generated a dark pulse that should be ignored.

8. 发明申请

US20150285922A1 Silicon Photomultiplier Based TOF-PET Detector 审中-公开
标题翻译：基于硅光电倍增管的TOF-PET检测器
公开(公告)号：US20150285922A1
公开(公告)日：2015-10-08
申请号：US14244312
申请日：2014-04-03
申请人： Siemens Medical Solutions USA, Inc.
发明人： Robert A. Mintzer , James Christopher Arnott , Mehmet Aykac , Johannes Breuer , Sanghee Cho , Peter Hansen , Maciej P. Kapusta , James L. Corbeil , Nan Zhang
IPC分类号： G01T1/208 , G01T1/29 , A61B6/00 , G01R33/48 , A61B6/03 , G01T1/161 , G01T1/16
CPC分类号： G01T1/208 , A61B6/032 , A61B6/037 , A61B6/4233 , A61B6/4241 , A61B6/4258 , A61B6/4417 , G01R33/481 , G01T1/1606 , G01T1/1647 , G01T1/2018 , G01T1/2985
摘要： A scintillation block detector employs an array of optically air coupled scintillation pixels, the array being wrapped in reflector material and optically coupled to an array of silicon photomultiplier light sensors with common-cathode signal timing pickoff and individual anode signal position and energy determination. The design features afford an optimized combination of photopeak energy event sensitivity and timing, while reducing electronic circuit complexity and power requirements, and easing necessary fabrication methods. Four of these small blocks, or “miniblocks,” can be combined as optically and electrically separated quadrants of a larger single detector in order to recover detection efficiency that would otherwise be lost due to scattering between them. Events are validated for total energy by summing the contributions from the four quadrants, while the trigger is generated from either the timing signal of the quadrant with the highest energy deposition, the first timing signal derived from the four quadrant time-pickoff signals, or a statistically optimum combination of the individual quadrant event times, so as to maintain good timing for scatter events. This further reduces the number of electronic channels required per unit detector area while avoiding the timing degradation characteristic of excessively large SiPM arrays.
摘要翻译：闪烁块检测器采用光学空气耦合的闪烁像素阵列，该阵列被包裹在反射器材料中并且光耦合到具有共阴极信号定时拾取和单独的阳极信号位置和能量确定的硅光电倍增管光传感器阵列。该设计特点提供了光峰能量事件灵敏度和时序的优化组合，同时降低了电子电路的复杂性和功率需求，并且减轻了必要的制造方法。这些小块中的四个或“小块”可以组合成较大的单个检测器的光学和电分离的象限，以便恢复否则由于它们之间的散射而损失的检测效率。事件通过对来自四个象限的贡献进行求和来验证总能量，而触发是从具有最高能量沉积的象限的定时信号，从四象限时间检测信号得到的第一定时信号或统计最佳组合的单个象限事件时间，以保持良好的分散事件时序。这进一步减少了每单位检测器面积所需的电子通道的数量，同时避免了过大的SiPM阵列的定时劣化特性。

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