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    • 42. 发明申请
    • Silicon Photomultiplier Based TOF-PET Detector
    • 基于硅光电倍增管的TOF-PET检测器
    • US20150285922A1
    • 2015-10-08
    • US14244312
    • 2014-04-03
    • Siemens Medical Solutions USA, Inc.
    • Robert A. MintzerJames Christopher ArnottMehmet AykacJohannes BreuerSanghee ChoPeter HansenMaciej P. KapustaJames L. CorbeilNan Zhang
    • G01T1/208G01T1/29A61B6/00G01R33/48A61B6/03G01T1/161G01T1/16
    • G01T1/208A61B6/032A61B6/037A61B6/4233A61B6/4241A61B6/4258A61B6/4417G01R33/481G01T1/1606G01T1/1647G01T1/2018G01T1/2985
    • 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.
    • 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。
    • 46. 发明授权
    • X-ray analyzer
    • X射线分析仪
    • US07910888B2
    • 2011-03-22
    • US12343364
    • 2008-12-23
    • Keiichi TanakaAkikazu OdawaraSatoshi NakayamaSumio IijimaShunji Bandow
    • Keiichi TanakaAkikazu OdawaraSatoshi NakayamaSumio IijimaShunji Bandow
    • H01L27/18
    • G01T1/1606
    • Provided is an X-ray analyzer capable of significantly suppressing an influence of an external magnetic field on a transition edge sensor (TES). The X-ray analyzer includes: a TES (7) for detecting energy of a received X-ray as a temperature change and outputting the temperature change as a current signal; a superconducting magnetic shield (8) which contains the TES (7) and enters a superconducting state; and a room temperature magnetic shield (9) which covers the superconducting magnetic shield (8) and performs external magnetic field shielding until the superconducting magnetic shield (8) enters the superconducting state, in which the superconducting magnetic shield (8) and the room temperature magnetic shield (9) are concentrically arranged to have a cylindrical shape.
    • 提供能够显着抑制外部磁场对过渡边缘传感器(TES)的影响的X射线分析装置。 X射线分析仪包括:TES(7),用于检测接收到的X射线的能量作为温度变化,并输出温度变化作为电流信号; 包含TES(7)并进入超导状态的超导磁屏蔽(8); 和覆盖超导磁屏蔽(8)的室温磁屏蔽(9),并执行外部磁场屏蔽,直到超导磁屏蔽(8)进入超导状态,其中超导磁屏蔽(8)和室温 磁屏蔽(9)同心地布置成具有圆柱形形状。