TIME OF FLIGHT MEASUREMENTS IN POSITRON EMISSION TOMOGRAPHY
    1.
    发明申请
    TIME OF FLIGHT MEASUREMENTS IN POSITRON EMISSION TOMOGRAPHY 有权
    飞行时间测量在时间排放测量中的时间

    公开(公告)号:US20090236532A1

    公开(公告)日:2009-09-24

    申请号:US12375413

    申请日:2007-07-18

    IPC分类号: G01T1/166

    摘要: A positron emission tomography apparatus (100) includes a plurality of radiation sensitive detector systems (106) and selective trigger systems (120). The selective trigger systems identify detector signals resulting from detected gamma radiation (310) while disregarding spurious detector signals (310). In one implementation, the apparatus (100) includes a time to digital converter which decomposes a measurement time interval (Tmax) according to a binary hierarchical decomposition of level H, where H is an integer greater than equal to one.

    摘要翻译: 正电子发射断层摄影装置(100)包括多个辐射敏感检测器系统(106)和选择性触发系统(120)。 选择性触发系统识别由检测到的伽马辐射(310)产生的检测器信号,同时忽略杂散检测器信号(310)。 在一个实现中,设备(100)包括时间到数字转换器,其根据电平H的二进制分层分解来分解测量时间间隔(Tmax),其中H是大于等于1的整数。

    Time of flight measurements in positron emission tomography
    2.
    发明授权
    Time of flight measurements in positron emission tomography 有权
    正电子发射断层扫描中的飞行时间测量

    公开(公告)号:US08164063B2

    公开(公告)日:2012-04-24

    申请号:US12375413

    申请日:2007-07-18

    IPC分类号: G01T1/166 G01T1/20

    摘要: A positron emission tomography apparatus (100) includes a plurality of radiation sensitive detector systems (106) and selective trigger systems (120). The selective trigger systems identify detector signals resulting from detected gamma radiation (310) while disregarding spurious detector signals (310). In one implementation, the apparatus (100) includes a time to digital converter which decomposes a measurement time interval (Tmax) according to a binary hierarchical decomposition of level H, where H is an integer greater than equal to one.

    摘要翻译: 正电子发射断层摄影装置(100)包括多个辐射敏感检测器系统(106)和选择性触发系统(120)。 选择性触发系统识别由检测到的伽马辐射(310)产生的检测器信号,同时忽略杂散检测器信号(310)。 在一个实现中,设备(100)包括时间到数字转换器,其根据电平H的二进制分层分解来分解测量时间间隔(Tmax),其中H是大于等于1的整数。

    Single photon radiation detector
    3.
    发明授权
    Single photon radiation detector 有权
    单光子辐射探测器

    公开(公告)号:US08723132B2

    公开(公告)日:2014-05-13

    申请号:US12933147

    申请日:2009-03-12

    IPC分类号: G01T1/208

    CPC分类号: G01T1/2018 G01T1/17

    摘要: The invention relates to a radiation detector that is particularly suited for energy resolved single X-ray photon detection in a CT scanner. In a preferred embodiment, the detector has an array of scintillator elements in which incident X-ray photons are converted into bursts of optical photons. Pixels associated to the scintillator elements determine the numbers of optical photons they receive within predetermined acquisition intervals. These numbers can then be digitally processed to detect single X-ray photons and to determine their energy. The pixels may particularly be realized by avalanche photodiodes with associated digital electronic circuits for data processing.

    摘要翻译: 本发明涉及一种特别适用于CT扫描仪中的能量分辨单X射线光子检测的辐射探测器。 在优选实施例中,检测器具有闪烁体元件阵列,其中入射的X射线光子被转换成光子光子的脉冲串。 与闪烁体元件相关联的像素确定它们在预定采集间隔内接收的光子的数量。 然后可以对这些数字进行数字处理,以检测单个X射线光子并确定其能量。 像素可以特别由具有用于数据处理的相关数字电子电路的雪崩光电二极管实现。

    SINGLE PHOTON RADIATION DETECTOR
    4.
    发明申请
    SINGLE PHOTON RADIATION DETECTOR 有权
    单光子辐射探测器

    公开(公告)号:US20110017918A1

    公开(公告)日:2011-01-27

    申请号:US12933147

    申请日:2009-03-12

    IPC分类号: G01T1/20

    CPC分类号: G01T1/2018 G01T1/17

    摘要: The invention relates to a radiation detector (100) that is particularly suited for energy resolved single X-ray photon detection in a CT scanner. In a preferred embodiment, the detector (100) comprises an array of scintillator elements (S k) in which incident X-ray photons (X) are converted into bursts of optical photons (hn). Pixels (P k) associated to the scintillator elements (S k) determine the numbers of optical photons they receive within predetermined acquisition intervals. These numbers can then be digitally processed to detect single X-ray photons (X) and to determine their energy. The pixels may particularly be realized by avalanche photodiodes with associated digital electronic circuits for data processing.

    摘要翻译: 本发明涉及一种特别适用于CT扫描仪中能量分辨的单次X射线光子检测的辐射检测器(100)。 在优选实施例中,检测器(100)包括闪烁体元件(S k)的阵列,其中入射的X射线光子(X)被转换成光子光子(hn)的脉冲串。 与闪烁体元件(S k)相关联的像素(P k)确定它们在预定采集间隔内接收的光子数。 然后可以对这些数字进行数字处理以检测单个X射线光子(X)并确定其能量。 像素可以特别由具有用于数据处理的相关数字电子电路的雪崩光电二极管实现。

    METHOD TO OPTIMIZE THE LIGHT EXTRACTION FROM SCINTILLATOR CRYSTALS IN A SOLID-STATE DETECTOR
    5.
    发明申请
    METHOD TO OPTIMIZE THE LIGHT EXTRACTION FROM SCINTILLATOR CRYSTALS IN A SOLID-STATE DETECTOR 有权
    在固态检测器中优化来自SCINTILLATOR CRYSTAL的光提取的方法

    公开(公告)号:US20120001075A1

    公开(公告)日:2012-01-05

    申请号:US13203990

    申请日:2010-02-09

    CPC分类号: G01T1/2002 Y10T29/49826

    摘要: A light transmitting element such as a scintillating element (50) or an optic fiber (50′) has side surfaces coated with a metamaterial (62) which has an index of refraction less than 1 and preferably close to zero to light transmitted in the light transmitting element. A photonic crystal (80) or metamaterial layer optically couples a light output face of the light transmitting element with a light sensitive element (52), such as a silicon photomultiplier (SiPM). A thin metal layer (64) blocks optical communication between adjacent scintillating elements (50) in a radiation detector (22), such as a radiation detector of a nuclear imaging system (10).

    摘要翻译: 诸如闪烁元件(50)或光纤(50')的透光元件具有涂覆有超材料(62)的侧表面,所述超材料(62)的折射率小于1,并且优选地接近于在光中透射的光 传输元件。 光子晶体(80)或超材料层将光传输元件的光输出面与诸如硅光电倍增管(SiPM)的光敏元件(52)光学耦合。 薄金属层(64)阻挡辐射检测器(22)中的相邻闪烁元件(50)之间的光通信,诸如核成像系统(10)的辐射检测器。

    SILICON PHOTOMULTIPLIER TRIGGER NETWORK
    6.
    发明申请
    SILICON PHOTOMULTIPLIER TRIGGER NETWORK 有权
    硅光电触发器网络

    公开(公告)号:US20110233413A1

    公开(公告)日:2011-09-29

    申请号:US12672074

    申请日:2008-08-06

    IPC分类号: G01T1/24

    CPC分类号: G01T1/1642 G01T1/248

    摘要: An apparatus (208) includes a plurality of photosensors (310). Photon trigger signals produced in response to signals from the sensors are received by a trigger line network that includes segment (302), intermediate (304), and master (306) lines. The trigger network is configured to reduce a temporal skew introduced by the trigger line network. Validation logic (324) provides a trigger validation output signal (610).

    摘要翻译: 装置(208)包括多个光电传感器(310)。 响应于来自传感器的信号产生的光子触发信号由包括段(302),中间(304)和主(306)线的触发线网络接收。 触发网络被配置为减少由触发线网络引入的时间偏差。 验证逻辑(324)提供触发验证输出信号(610)。

    SILICON PHOTOMULTIPLIER ENERGY RESOLUTION
    7.
    发明申请
    SILICON PHOTOMULTIPLIER ENERGY RESOLUTION 有权
    硅光电能源解决方案

    公开(公告)号:US20100200763A1

    公开(公告)日:2010-08-12

    申请号:US12675973

    申请日:2008-08-26

    IPC分类号: G01T1/20 G01T1/24

    CPC分类号: H01J43/18

    摘要: A family of photodetectors includes at least first and second members. In one embodiment, the family includes members having different pixel sizes. In another, the family includes members having the same pixel size. The detection efficiency of the detectors is optimized to provide a desired energy resolution at one or more energies of interest.

    摘要翻译: 一系列光电探测器至少包括第一和第二构件。 在一个实施例中,该系列包括具有不同像素大小的成员。 另一方面,家族包括具有相同像素大小的成员。 检测器的检测效率被优化以在一个或多个感兴趣的能量下提供期望的能量分辨率。

    Method to optimize the light extraction from scintillator crystals in a solid-state detector
    8.
    发明授权
    Method to optimize the light extraction from scintillator crystals in a solid-state detector 有权
    优化固态检测器中闪烁体晶体的光提取的方法

    公开(公告)号:US08481948B2

    公开(公告)日:2013-07-09

    申请号:US13203990

    申请日:2010-02-09

    IPC分类号: G01T1/20

    CPC分类号: G01T1/2002 Y10T29/49826

    摘要: A light transmitting element such as a scintillating element (50) or an optic fiber (50′) has side surfaces coated with a metamaterial (62) which has an index of refraction less than 1 and preferably close to zero to light transmitted in the light transmitting element. A photonic crystal (80) or metamaterial layer optically couples a light output face of the light transmitting element with a light sensitive element (52), such as a silicon photomultiplier (SiPM). A thin metal layer (64) blocks optical communication between adjacent scintillating elements (50) in a radiation detector (22), such as a radiation detector of a nuclear imaging system (10).

    摘要翻译: 诸如闪烁元件(50)或光纤(50')的透光元件具有涂覆有超材料(62)的侧表面,所述超材料(62)的折射率小于1,并且优选地接近于在光中透射的光 传输元件。 光子晶体(80)或超材料层将光传输元件的光输出面与诸如硅光电倍增管(SiPM)的光敏元件(52)光学耦合。 薄金属层(64)阻挡辐射检测器(22)中的相邻闪烁元件(50)之间的光通信,诸如核成像系统(10)的辐射检测器。

    Silicon photomultiplier energy resolution
    9.
    发明授权
    Silicon photomultiplier energy resolution 有权
    硅光电倍增管能量分辨率

    公开(公告)号:US08410449B2

    公开(公告)日:2013-04-02

    申请号:US12675973

    申请日:2008-08-26

    IPC分类号: G01T1/24

    CPC分类号: H01J43/18

    摘要: A family of photodetectors includes at least first and second members. In one embodiment, the family includes members having different pixel sizes. In another, the family includes members having the same pixel size. The detection efficiency of the detectors is optimized to provide a desired energy resolution at one or more energies of interest.

    摘要翻译: 一系列光电探测器至少包括第一和第二构件。 在一个实施例中,该系列包括具有不同像素大小的成员。 另一方面,家族包括具有相同像素大小的成员。 检测器的检测效率被优化以在一个或多个感兴趣的能量下提供期望的能量分辨率。

    Silicon photomultiplier trigger network
    10.
    发明授权
    Silicon photomultiplier trigger network 有权
    硅光电倍增管触发网络

    公开(公告)号:US08319186B2

    公开(公告)日:2012-11-27

    申请号:US12672074

    申请日:2008-08-06

    IPC分类号: G01T1/24

    CPC分类号: G01T1/1642 G01T1/248

    摘要: An apparatus (208) includes a plurality of photosensors (310). Photon trigger signals produced in response to signals from the sensors are received by a trigger line network that includes segment (302), intermediate (304), and master (306) lines. The trigger network is configured to reduce a temporal skew introduced by the trigger line network. Validation logic (324) provides a trigger validation output signal (610).

    摘要翻译: 装置(208)包括多个光电传感器(310)。 响应于来自传感器的信号产生的光子触发信号由包括段(302),中间(304)和主(306)线的触发线网络接收。 触发网络被配置为减少由触发线网络引入的时间偏差。 验证逻辑(324)提供触发验证输出信号(610)。