Use of flat panel microchannel photomultipliers in sampling calorimeters with timing
    1.
    发明授权
    Use of flat panel microchannel photomultipliers in sampling calorimeters with timing 有权
    平板微通道光电倍增器在采样量热仪中的使用

    公开(公告)号:US08604440B2

    公开(公告)日:2013-12-10

    申请号:US13044442

    申请日:2011-03-09

    IPC分类号: G01T1/164

    摘要: Large-area, flat-panel photo-detectors with sub-nanosecond time resolution based on microchannel plates are provided. The large-area, flat-panel photo-detectors enable the economic construction of sampling calorimeters with, for example, enhanced capability to measure local energy deposition, depth-of-interaction, time-of-flight, and/or directionality of showers. In certain embodiments, sub-nanosecond timing resolution supplies correlated position and time measurements over large areas. The use of thin flat-panel viewing radiators on both sides of a radiation-creating medium allows simultaneous measurement of Cherenkov and scintillation radiation in each layer of the calorimeter. The detectors may be used in a variety of applications including, for example, medical imaging, security, and particle and nuclear physics.

    摘要翻译: 提供了基于微通道板的亚纳秒时间分辨率的大面积平板光电探测器。 大面积的平板光电探测器能够对采样量热仪进行经济建设,例如增强测量局部能量沉积,相互作用深度,飞行时间和/或淋浴方向性的能力。 在某些实施例中,亚纳秒定时分辨率在大面积上提供相关位置和时间测量。 在辐射产生介质的两侧使用薄的平板观察辐射器允许同时测量量热计的每层中的切伦科夫和闪烁辐射。 检测器可以用于各种应用,包括例如医学成像,安全性,粒子和核物理学。

    USE OF FLAT PANEL MICROCHANNEL PHOTOMULTIPLIERS IN SAMPLING CALORIMETERS WITH TIMING
    2.
    发明申请
    USE OF FLAT PANEL MICROCHANNEL PHOTOMULTIPLIERS IN SAMPLING CALORIMETERS WITH TIMING 有权
    平板微电子照相机在采样计时器中的使用

    公开(公告)号:US20110220802A1

    公开(公告)日:2011-09-15

    申请号:US13044442

    申请日:2011-03-09

    IPC分类号: G01T1/164 G01T1/202 G01T1/208

    摘要: Large-area, flat-panel photo-detectors with sub-nanosecond time resolution based on microchannel plates are provided. The large-area, flat-panel photo-detectors enable the economic construction of sampling calorimeters with, for example, enhanced capability to measure local energy deposition, depth-of-interaction, time-of-flight, and/or directionality of showers. In certain embodiments, sub-nanosecond timing resolution supplies correlated position and time measurements over large areas. The use of thin flat-panel viewing radiators on both sides of a radiation-creating medium allows simultaneous measurement of Cherenkov and scintillation radiation in each layer of the calorimeter. The detectors may be used in a variety of applications including, for example, medical imaging, security, and particle and nuclear physics.

    摘要翻译: 提供了基于微通道板的亚纳秒时间分辨率的大面积平板光电探测器。 大面积的平板光电探测器能够对采样量热仪进行经济建设,例如增强测量局部能量沉积,相互作用深度,飞行时间和/或淋浴方向性的能力。 在某些实施例中,亚纳秒定时分辨率在大面积上提供相关位置和时间测量。 在辐射产生介质的两侧使用薄的平板观察辐射器允许同时测量量热计的每层中的切伦科夫和闪烁辐射。 检测器可以用于各种应用,包括例如医学成像,安全性,粒子和核物理学。

    Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC
    3.
    发明申请
    Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC 有权
    用于数字化伽马射线能量并表征峰值时间和衰减时间常数而不使用ADC的装置和方法

    公开(公告)号:US20050247879A1

    公开(公告)日:2005-11-10

    申请号:US11097121

    申请日:2005-04-04

    CPC分类号: G01T1/2985 A61B6/037

    摘要: A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse generated upon a PET event detection as a fast linearly rising edge followed by a slower exponential decay. The model includes parameters of the voltage pulse that are relevant for PET event detection including a decay constant, a peak voltage value, and a peak time, which are determined from time interval measurements of the voltage pulse. The time interval measurements are made using comparators and counters in an exemplary electronic implementation.

    摘要翻译: 在用于数字化伽马射线能量并表征峰值时间和衰减时间常数的高分辨率正电子发射断层摄影(PET)系统中使用的装置和方法,将在PET事件检测时产生的电压脉冲建模为快速线性上升沿,随后是较慢的指数 衰变。 该模型包括与包括衰减常数,峰值电压值和峰值时间相关的PET事件检测的电压脉冲的参数,其由电压脉冲的时间间隔测量确定。 在示例性电子实现中使用比较器和计数器进行时间间隔测量。

    Accurate image reconstruction for DOI-PET system
    4.
    发明授权
    Accurate image reconstruction for DOI-PET system 失效
    DOI-PET系统的精确图像重建

    公开(公告)号:US06528793B1

    公开(公告)日:2003-03-04

    申请号:US09693478

    申请日:2000-10-20

    IPC分类号: G01T1164

    摘要: A method and apparatus are provided for reconstructing images from data obtained from scintillation events occurring within a projection space of a depth-of-interaction positron emission tomography system. The method includes the steps of identifying a segment of each depth-of-interaction detector of respective pairs of depth-of-interaction detectors detecting the scintillation-events of the data obtained within the projection space and estimating a set of sinograms from the data based upon a set of depth-independent point spread functions of the identified segments of the respective pairs of depth-of-interaction detectors.

    摘要翻译: 提供了一种方法和装置,用于根据在相互作用的深度正电子发射断层摄影系统的投影空间内发生的闪烁事件获得的数据重建图像。 该方法包括以下步骤:识别检测在投影空间内获得的数据的闪烁事件的相互对的深度相互作用检测器的每个相互作用检测器的一段,并从基于数据的基础上估计一组中心图 在相应的相互作用深度检测器对的所识别的段的一组与深度无关的点扩展函数上。

    Device and method for digitizing pet radiation events
    5.
    发明授权
    Device and method for digitizing pet radiation events 有权
    宠物辐射事件数字化的装置和方法

    公开(公告)号:US07342232B2

    公开(公告)日:2008-03-11

    申请号:US11097153

    申请日:2005-04-04

    IPC分类号: G01T1/164

    摘要: A device and method used in the high resolution Positron Emission Tomography (PET) systems for digitizing radiation events for a scintillation camera and a data acquisition system. The device comprises a scintillation digitizer, including a plurality of comparators and amplifiers, two ADCs, and an analyzer for resolving the digital values of radiation events. The method comprises comparing a plurality of analog electric pulses generated upon radiation event detections with a reference voltage corresponding to an energy level of interest, amplifying all of the signals with two groups of coefficients, summing the two groups of amplified signals, digitizing the summed signals, and analyzing the digitized sums to determine digital values corresponding to a plurality of the radiation events.

    摘要翻译: 用于数字化用于闪烁照相机和数据采集系统的辐射事件的高分辨率正电子发射断层扫描(PET)系统中的装置和方法。 该装置包括闪烁数字转换器,包括多个比较器和放大器,两个ADC和用于分辨辐射事件的数字值的分析器。 该方法包括将辐射事件检测所产生的多个模拟电脉冲与对应于感兴趣能级的参考电压进行比较,用两组系数放大所有信号,对两组放大信号求和,对相加的信号进行数字化 并且分析数字化和以确定对应于多个辐射事件的数字值。

    Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC
    6.
    发明授权
    Device and method for digitizing gamma ray energy and characterizing peak time and decay time constant without the use of ADC 有权
    用于数字化伽马射线能量并表征峰值时间和衰减时间常数而不使用ADC的装置和方法

    公开(公告)号:US07199370B2

    公开(公告)日:2007-04-03

    申请号:US11097121

    申请日:2005-04-04

    IPC分类号: G01T1/164

    CPC分类号: G01T1/2985 A61B6/037

    摘要: A device and method used in high resolution positron emission tomography (PET) systems for digitizing gamma ray energy and characterizing peak time and decay time constant, models a voltage pulse generated upon a PET event detection as a fast linearly rising edge followed by a slower exponential decay. The model includes parameters of the voltage pulse that are relevant for PET event detection including a decay constant, a peak voltage value, and a peak time, which are determined from time interval measurements of the voltage pulse. The time interval measurements are made using comparators and counters in an exemplary electronic implementation.

    摘要翻译: 在用于数字化伽马射线能量并表征峰值时间和衰减时间常数的高分辨率正电子发射断层摄影(PET)系统中使用的装置和方法,将在PET事件检测时产生的电压脉冲建模为快速线性上升沿,随后是较慢的指数 衰变。 该模型包括与包括衰减常数,峰值电压值和峰值时间相关的PET事件检测的电压脉冲的参数,其由电压脉冲的时间间隔测量确定。 在示例性电子实现中使用比较器和计数器进行时间间隔测量。

    Device and method for digitizing pet radiation events
    7.
    发明申请
    Device and method for digitizing pet radiation events 有权
    宠物辐射事件数字化的装置和方法

    公开(公告)号:US20060000979A1

    公开(公告)日:2006-01-05

    申请号:US11097153

    申请日:2005-04-04

    IPC分类号: G01T1/164

    摘要: A device and method used in the high resolution Positron Emission Tomography (PET) systems for digitizing radiation events for a scintillation camera and a data acquisition system. The device comprises a scintillation digitizer, including a plurality of comparators and amplifiers, two ADCs, and an analyzer for resolving the digital values of radiation events. The method comprises comparing a plurality of analog electric pulses generated upon radiation event detections with a reference voltage corresponding to an energy level of interest, amplifying all of the signals with two groups of coefficients, summing the two groups of amplified signals, digitizing the summed signals, and analyzing the digitized sums to determine digital values corresponding to a plurality of the radiation events.

    摘要翻译: 用于数字化用于闪烁照相机和数据采集系统的辐射事件的高分辨率正电子发射断层扫描(PET)系统中的装置和方法。 该装置包括闪烁数字转换器,包括多个比较器和放大器,两个ADC和用于分辨辐射事件的数字值的分析器。 该方法包括将辐射事件检测所产生的多个模拟电脉冲与对应于感兴趣能级的参考电压进行比较,用两组系数放大所有信号,对两组放大信号求和,对相加的信号进行数字化 并且分析数字化和以确定对应于多个辐射事件的数字值。