Single photon radiation detector
    1.
    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
    2.
    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。

    TIME OF FLIGHT MEASUREMENTS IN POSITRON EMISSION TOMOGRAPHY
    3.
    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
    4.
    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。

    Low-power TDC-ADC and anger logic in radiation detection applications
    5.
    发明授权
    Low-power TDC-ADC and anger logic in radiation detection applications 有权
    低功耗TDC-ADC和辐射检测应用中的愤怒逻辑

    公开(公告)号:US08598534B2

    公开(公告)日:2013-12-03

    申请号:US12920481

    申请日:2009-02-25

    申请人: Torsten Solf

    发明人: Torsten Solf

    IPC分类号: G01T1/24

    摘要: A diagnostic imaging device includes a signal processing circuit (22) processes signals from a detector array (16) which detects radiation from an imaging region (20). The hit signals are indicative of a corresponding detector (18) being hit by a radiation photon. The signal processing circuit (22) includes a plurality of input channels (321, 322, 323, 324), each input channel receiving hit signals from a corresponding detector element (18) such that each input channel (321, 322, 323, 324) corresponds to a location at which each hit signal is received. A plurality of integrators (42) integrate signals from the input channels (32) to determine an energy value associated with each radiation hit. A plurality of analog-to-digital converters (441, 442, 443, 444) convert the integrated energy value into a digital energy value. A plurality of time to digital converters (40) receive the hit signals and generate a digital time stamp. OR logic (36, 38) relays signal hits from a subset of the plurality of input channels (32) to one of the ADC (44) and one of the time to digital converters (40), the subset including more than one input channel such that more than one input channel is connected with each ADC (44) and/or each time-to-digital converter (40). A register and read out (25) reads out the locations, the digital energy values, and the digital time stamps for hit signals.

    摘要翻译: 诊断成像装置包括处理来自检测器阵列(16)的信号的信号处理电路(22),其检测来自成像区域(20)的辐射。 命中信号指示相应的检测器(18)被辐射光子击中。 信号处理电路(22)包括多个输入通道(321,322,323,324),每个输入通道从对应的检测器元件(18)接收命中信号,使得每个输入通道(321,322,323,324) )对应于接收每个命中信号的位置。 多个积分器(42)集成来自输入通道(32)的信号以确定与每个辐射命中相关联的能量值。 多个模数转换器(441,442,443,444)将积分的能量值转换为数字能量值。 多个时间到数字转换器(40)接收命中信号并产生数字时间戳。 OR逻辑(36,38)将来自多个输入通道(32)的子集的信号命中中继到ADC(44)中的一个和时间到数字转换器(40)中的一个,该子集包括多于一个的输入通道 使得多个输入通道与每个ADC(44)和/或每个时间 - 数字转换器(40)连接。 寄存器和读出(25)读出命中信号的位置,数字能量值和数字时间戳。

    System for driving inertia-prone picture-reproducing devices
    6.
    发明申请
    System for driving inertia-prone picture-reproducing devices 审中-公开
    用于驱动惯性图像再现装置的系统

    公开(公告)号:US20060221037A1

    公开(公告)日:2006-10-05

    申请号:US10568554

    申请日:2004-08-16

    IPC分类号: G09G3/36

    摘要: In a system for driving inertia-prone picture-reproducing devices, in particular liquid-crystal displays, in which a correcting value that depends on changes in the video signals from frame to frame is added to incoming video signals to compensate for the inertial effects and in which the corrected video signals are passed to the picture-reproducing device to form the correcting value, a model of the picture-reproducing device is provided that has a state variable as an output variable, the video signals as a first input variable and the state variable from a preceding frame as a second input variable. Furthermore, to derive the correcting value, a function having the incoming video signals and the state variable of the preceding variable as input variables and the corrected video signals as an output variable.

    摘要翻译: 在用于驱动惯性倾向的图像再现装置的系统中,特别是液晶显示器,其中将依赖于帧间视频信号的变化的校正值加到输入视频信号上以补偿惯性效应, 其中校正的视频信号被传送到图像再现装置以形成校正值,提供了具有状态变量作为输出变量的图像再现装置的模型,视频信号作为第一输入变量,并且 状态变量作为第二个输入变量。 此外,为了导出校正值,具有输入视频信号和前一变量的状态变量作为输入变量的函数和校正后的视频信号作为输出变量。

    Big bore PET/MR system
    7.
    发明授权
    Big bore PET/MR system 有权
    大口径PET / MR系统

    公开(公告)号:US08467848B2

    公开(公告)日:2013-06-18

    申请号:US13147205

    申请日:2010-01-12

    IPC分类号: A61B5/05

    摘要: A nuclear detector module (24) is housed within an electrically conductive hollow resonator element (18) that is to be used in a combined MR and nuclear imaging unit. The resonator element has an inner face (26) which is radiation transparent facing an examination region (14) and a plurality of other faces (28) disposed facing and spaced from an RF screen (22).

    摘要翻译: 核检测器模块(24)容纳在用于组合MR和核成像单元的导电中空谐振元件(18)内。 谐振器元件具有面向检查区域(14)的辐射透明的内表面(26)和面对RF屏幕(22)并与之隔开的多个其它面(28)。

    PET/MR scanners for simultaneous PET and MR imaging
    8.
    发明授权
    PET/MR scanners for simultaneous PET and MR imaging 有权
    PET / MR扫描仪同时进行PET和MR成像

    公开(公告)号:US08188736B2

    公开(公告)日:2012-05-29

    申请号:US12521907

    申请日:2008-01-08

    IPC分类号: G01V3/00

    摘要: In a combined system, a magnetic resonance (MR) scanner includes a magnet (10, 110) configured to generate a static magnetic field (B0) at least in a MR examination region (12) from which MR data are acquired. Radiation detectors (40, 41, 140) are configured to detect gamma rays generated by positron-electron annihilation events in a positron emission tomography (PET) examination region (70). The radiation 5 detectors include electron multiplier elements (60, 160) having a direction of electron acceleration (ae) arranged substantially parallel or anti-parallel with the static magnetic field (B0). In some embodiments, the magnet is an open magnet having first and second spaced apart magnet pole pieces (14, 15) disposed on opposite sides of a magnetic 10 resonance examination region, and the radiation detectors include first and second arrays (40, 41) of radiation detectors disposed with the first and second spaced apart magnet pole pieces.

    摘要翻译: 在组合系统中,磁共振(MR)扫描器包括至少在从其获取MR数据的MR检查区域(12)中产生静态磁场(B0)的磁体(10,110)。 辐射检测器(40,41,140)被配置为检测由正电子发射断层摄影(PET)检查区域(70)中的正电子 - 电子湮灭事件产生的伽马射线。 辐射5检测器包括具有与静态磁场(B0)基本平行或反平行排列的电子加速度(ae)方向的电子倍增器元件(60,160)。 在一些实施例中,磁体是具有设置在磁性10共振检查区域的相对侧上的第一和第二间隔开的磁极片(14,15)的开放磁体,并且辐射检测器包括第一和第二阵列(40,41) 的辐射探测器,其布置有第一和第二间隔开的磁极片。

    LOW-POWER TDC-ADC AND ANGER LOGIC IN RADIATION DETECTION APPLICATIONS
    9.
    发明申请
    LOW-POWER TDC-ADC AND ANGER LOGIC IN RADIATION DETECTION APPLICATIONS 有权
    低功率TDC-ADC和放射性检测应用中的角度逻辑

    公开(公告)号:US20110001053A1

    公开(公告)日:2011-01-06

    申请号:US12920481

    申请日:2009-02-25

    申请人: Torsten Solf

    发明人: Torsten Solf

    IPC分类号: G01T1/24 G01J1/42 G05F3/02

    摘要: A diagnostic imaging device includes a signal processing circuit (22) processes signals from a detector array (16) which detects radiation from an imaging region (20). The hit signals are indicative of a corresponding detector (18) being hit by a radiation photon. The signal processing circuit (22) includes a plurality of input channels (321, 322, 323, 324), each input channel receiving hit signals from a corresponding detector element (18) such that each input channel (321, 322, 323, 324) corresponds to a location at which each hit signal is received. A plurality of integrators (42) integrate signals from the input channels (32) to determine an energy value associated with each radiation hit. A plurality of analog-to-digital converters (441, 442, 443, 444) convert the integrated energy value into a digital energy value. A plurality of time to digital converters (40) receive the hit signals and generate a digital time stamp. OR logic (36, 38) relays signal hits from a subset of the plurality of input channels (32) to one of the ADC (44) and one of the time to digital converters (40), the subset including more than one input channel such that more than one input channel is connected with each ADC (44) and/or each time-to-digital converter (40). A register and read out (25) reads out the locations, the digital energy values, and the digital time stamps for hit signals.

    摘要翻译: 诊断成像装置包括处理来自检测器阵列(16)的信号的信号处理电路(22),其检测来自成像区域(20)的辐射。 命中信号指示相应的检测器(18)被辐射光子击中。 信号处理电路(22)包括多个输入通道(321,322,323,324),每个输入通道从对应的检测器元件(18)接收命中信号,使得每个输入通道(321,322,323,324) )对应于接收每个命中信号的位置。 多个积分器(42)集成来自输入通道(32)的信号以确定与每个辐射命中相关联的能量值。 多个模数转换器(441,442,443,444)将积分的能量值转换为数字能量值。 多个时间到数字转换器(40)接收命中信号并产生数字时间戳。 OR逻辑(36,38)将来自多个输入通道(32)的子集的信号命中中继到ADC(44)中的一个和时间到数字转换器(40)中的一个,该子集包括多于一个的输入通道 使得多个输入通道与每个ADC(44)和/或每个时间 - 数字转换器(40)连接。 寄存器和读出(25)读出命中信号的位置,数字能量值和数字时间戳。

    Method of and imaging ultrasound system for determining the position of a catheter
    10.
    发明授权
    Method of and imaging ultrasound system for determining the position of a catheter 失效
    用于确定导管位置的超声系统的方法和成像方法

    公开(公告)号:US06587709B2

    公开(公告)日:2003-07-01

    申请号:US10109239

    申请日:2002-03-28

    申请人: Torsten Solf Kai Eck

    发明人: Torsten Solf Kai Eck

    IPC分类号: A61B505

    摘要: An imaging ultrasound system is provided with an ultrasound transducer and an image processing unit for the acquisition of a three-dimensional ultrasound image of the body of a patient, and a catheter for carrying out a therapeutic or diagnostic intervention in the body of the patient. The catheter accommodates, in addition to the customary instruments necessary to carry out its task, three ultrasound receivers that are mounted at a distance from one another on the tip of the catheter and are capable of detecting the arrival of scan signals of the ultrasound transducer. The distance between the ultrasound transducer and the receivers can be calculated from the transit time of the scan signals. The receivers can thus be localized in space. Localization enables notably the selection of, for example, the plane from the three-dimensional ultrasound data that contains all three receivers of the catheter. The tip of the catheter can thus be automatically tracked and displayed on a monitor at all times without manual displacement of the ultrasound transducer being necessary.

    摘要翻译: 成像超声系统设置有用于获取患者身体的三维超声图像的超声换能器和图像处理单元,以及用于在患者体内进行治疗或诊断干预的导管。 除了执行其任务所需的常规仪器之外,导管容纳三个超声波接收器,其在导管的尖端处彼此间隔一定距离地安装,并且能够检测超声换能器的扫描信号的到达。 超声换能器与接收器之间的距离可以从扫描信号的传播时间计算出来。 因此,接收器可以被定位在空间中。 本地化可以显着地选择例如来自包含导管的所有三个接收器的三维超声数据的平面。 因此,导管的尖端可以始终自动地跟踪并显示在监视器上,而不需要超声换能器的手动位移。