Systems and methods for improving position resolution of charge-sharing position sensitive detectors
    21.
    发明申请
    Systems and methods for improving position resolution of charge-sharing position sensitive detectors 审中-公开
    用于改善电荷共享位置敏感探测器位置分辨率的系统和方法

    公开(公告)号:US20060131508A1

    公开(公告)日:2006-06-22

    申请号:US11021540

    申请日:2004-12-22

    IPC分类号: G01T1/20

    CPC分类号: G01T1/2985 G01T1/17

    摘要: An imaging system configured to provide improved position resolution is disclosed. The imaging system includes detector acquisition circuitry that is configured to acquire a plurality of rise-times and a plurality of amplitudes from a detector assembly that includes an array of one or more detector elements. The imaging system also includes position determining circuitry that is configured to determine a plurality of respective impact positions on each of the detector elements. The plurality of impact positions is based on at least the plurality of rise-times and the plurality of the amplitudes acquired by the detector acquisition circuitry.

    摘要翻译: 公开了一种被配置为提供改进的位置分辨率的成像系统。 成像系统包括检测器采集电路,其被配置为从包括一个或多个检测器元件的阵列的检测器组件获取多个上升时间和多个振幅。 成像系统还包括位置确定电路,其被配置为确定每个检测器元件上的多个相应的冲击位置。 多个冲击位置基于由检测器获取电路获取的至少多个上升时间和多个振幅。

    Communication bus suitable for use in a hazardous area of a process plant
    22.
    发明申请
    Communication bus suitable for use in a hazardous area of a process plant 有权
    通信总线适用于过程工厂的危险区域

    公开(公告)号:US20050068710A1

    公开(公告)日:2005-03-31

    申请号:US10675446

    申请日:2003-09-30

    IPC分类号: H04L12/28 H02H9/00 H02H1/00

    CPC分类号: H02H9/008

    摘要: A communication bus suitable for use in a hazardous area of a process plant includes a first transmission path adapted to communicate electrical signals in a first direction, and a second transmission path adapted to communicate electrical signals in a second direction. A safety device is coupled to each of the first and second transmission paths and includes a control unit adapted to detect a fault condition associated with the communication bus. The safety device further includes a switch unit adapted to interrupt the flow of electrical signals along each of the first and second transmission paths in response to the detected fault condition. In this manner, the detection circuitry of the communication bus automatically reduces or prevents the occurrence of sparks or arcing in the event of a fault condition associated with the communication bus.

    摘要翻译: 适用于过程工厂的危险区域的通信总线包括适于在第一方向上传送电信号的第一传输路径和适于在第二方向上传送电信号的第二传输路径。 安全装置耦合到第一和第二传输路径中的每一个,并且包括适于检测与通信总线相关联的故障状况的控制单元。 安全装置还包括开关单元,其适于响应于检测到的故障状况中断沿着第一和第二传输路径中的每一个的电信号的流动。 以这种方式,通信总线的检测电路在与通信总线相关的故障状况的情况下自动地减少或防止火花或电弧的发生。

    Pet detector scintillation light guiding system having fiber-optics plates
    23.
    发明授权
    Pet detector scintillation light guiding system having fiber-optics plates 有权
    宠物探测器闪烁光导系统具有光纤板

    公开(公告)号:US09194960B2

    公开(公告)日:2015-11-24

    申请号:US13545614

    申请日:2012-07-10

    摘要: A positron emission tomography scanner system that includes detector modules arranged adjacent to one another to form a cylindrical detector ring. Each of the detector modules includes an array of scintillation crystal elements, a plurality of photosensors arranged to cover the array of crystal elements and configured to receive light emitted from the array of crystal elements, and a fiber optics plate arranged between the array of scintillation crystal elements and the plurality of photosensors, the fiber optics plate including a plurality of fibers configured to guide the light emitted from the scintillation crystal to the plurality of photosensors.

    摘要翻译: 正电子发射断层摄影扫描仪系统,其包括彼此相邻布置以形成圆柱形检测器环的检测器模块。 每个检测器模块包括闪烁晶体元件阵列,多个光电传感器布置成覆盖晶体元件阵列并被配置为接收从晶体元件阵列发射的光,以及布置在闪烁晶体阵列之间的光纤板 元件和多个光电传感器,所述光纤板包括被配置为将从闪烁晶体发射的光引导到多个光电传感器的多个光纤。

    Photomultiplier tube with integrated fast analog-to-digital conversion for event derandomizer and digital time stamping
    25.
    发明授权
    Photomultiplier tube with integrated fast analog-to-digital conversion for event derandomizer and digital time stamping 有权
    光电倍增管,集成了快速模数转换,用于事件脱模器和数字时间戳

    公开(公告)号:US08324580B1

    公开(公告)日:2012-12-04

    申请号:US13153611

    申请日:2011-06-06

    IPC分类号: G01T1/161

    CPC分类号: G01T1/1647

    摘要: A digital photosensor that includes a photomultiplier tube (PMT) including a power distribution circuit, the PMT outputting an analog signal in response to received light; an analog-to-digital converter (ADC) to receive the analog signal and to generate a digital signal; and a non-transitory memory storing manufacturing parameters of the PMT and operational parameters of the PMT, the operational parameters being calculated by a parameter calculation unit during operation of the PMT, wherein the PMT, the ADC, and the memory are integrated into a single housing.

    摘要翻译: 一种数字光电传感器,包括具有功率分配电路的光电倍增管(PMT),所述PMT响应于所接收的光而输出模拟信号; 模数转换器(ADC),用于接收模拟信号并产生数字信号; 以及存储PMT的制造参数和PMT的运行参数的非暂时性存储器,所述运行参数由PMT运转中的参数运算单元计算,其中所述PMT,所述ADC和所述存储器被集成为单个 住房。

    Pet detector scintillation light guiding system having fiber-optics plates
    26.
    发明授权
    Pet detector scintillation light guiding system having fiber-optics plates 有权
    宠物探测器闪烁光导系统具有光纤板

    公开(公告)号:US08304738B2

    公开(公告)日:2012-11-06

    申请号:US12907124

    申请日:2010-10-19

    IPC分类号: G01T1/20

    摘要: A positron emission tomography scanner system that includes detector modules arranged adjacent to one another to form a cylindrical detector ring. Each of the detector modules includes an array of scintillation crystal elements, a plurality of photosensors arranged to cover the array of crystal elements and configured to receive light emitted from the array of crystal elements, and a fiber optics plate arranged between the array of scintillation crystal elements and the plurality of photosensors, the fiber optics plate including a plurality of fibers configured to guide the light emitted from the scintillation crystal to the plurality of photosensors.

    摘要翻译: 正电子发射断层摄影扫描仪系统,其包括彼此相邻布置以形成圆柱形检测器环的检测器模块。 每个检测器模块包括闪烁晶体元件阵列,多个光电传感器布置成覆盖晶体元件阵列并被配置为接收从晶体元件阵列发射的光,以及布置在闪烁晶体阵列之间的光纤板 元件和多个光电传感器,所述光纤板包括被配置为将从闪烁晶体发射的光引导到多个光电传感器的多个光纤。

    Self-configuring communication networks for use with process control systems
    28.
    发明授权
    Self-configuring communication networks for use with process control systems 失效
    用于过程控制系统的自配置通信网络

    公开(公告)号:US07460865B2

    公开(公告)日:2008-12-02

    申请号:US10464087

    申请日:2003-06-18

    IPC分类号: H04Q7/20

    摘要: Disclosed herein are methods, apparatus and articles of manufacture for configuring a communication network associated with a plurality of wireless enabled field devices. A disclosed example method of establishing a communication network for use in a process control system having a controller and a plurality of wireless enabled field devices involves identifying a plurality of wireless communication links available for routing communications between the wirless enabled field devices and the controller. Each of the wireless enabled field devices is at least one of a sensor or an actuator. The example method also involves automatically assigning at least first and second ones of the plurality of wireless communication links to a first one of the wireless enabled field devices based on at least one predetermined signal criterion. The first wireless communication link wirelessly communicatively couples the first wireless enabled field device to a second wireless device. In addition, the second wireless communication link wirelessly communicatively couples the second wireless device to the controller.

    摘要翻译: 这里公开了用于配置与多个无线使能的现场设备相关联的通信网络的方法,装置和制品。 公开的建立用于具有控制器和多个无线使能现场设备的过程控制系统中的通信网络的示例性方法包括识别可用于在无启动现场设备和控制器之间路由通信的多个无线通信链路。 每个无线使能的现场设备是传感器或致动器中的至少一个。 该示例性方法还涉及基于至少一个预定信号标准自动地将多个无线通信链路中的至少第一和第二无线通信链路分配给无线使能现场设备中的第一无线通信链路。 第一无线通信链路将第一无线使能现场设备无线通信地耦合到第二无线设备。 此外,第二无线通信链路将第二无线设备无线通信地耦合到控制器。

    Time-of-flight capable high resolution pet detector
    30.
    发明授权
    Time-of-flight capable high resolution pet detector 有权
    飞行时间能力高分辨率宠物探测器

    公开(公告)号:US07193208B1

    公开(公告)日:2007-03-20

    申请号:US11257207

    申请日:2005-10-24

    IPC分类号: G01T1/20

    CPC分类号: G01T1/1642 G01T1/2985

    摘要: An array of position-sensitive avalanche photodiodes is provided in which output signal contacts from corners of each photodiode are grouped in common for readout. Each photodiode may be provided on a single wafer or chip, with photodiodes being separated by a trench or a groove. Corners of each photodiode include contacts for reading out signals resulting from gamma rays incident events in an adjacent scintillator. Grouping of the contacts into common output channels reduces the number of output channels, while still permitting localization of gamma ray incident events in the scintillator crystals. The photodiode array may be positioned adjacent to one face of a scintillator, with a photomultiplier tube to be positioned adjacent to another. The detector arrangement may be used for positron emission tomography imaging and similar techniques.

    摘要翻译: 提供了一组位置敏感的雪崩光电二极管,其中从每个光电二极管的角落的输出信号接触被共同分组以用于读出。 每个光电二极管可以设置在单个晶片或芯片上,其中光电二极管被沟槽或沟槽分开。 每个光电二极管的角度包括用于读出由相邻闪烁器中的伽马射线入射事件产生的信号的触点。 将触点分组成公共输出通道减少输出通道的数量,同时仍然允许在闪烁体晶体中定位伽马射线入射事件。 光电二极管阵列可以定位成与闪烁体的一个面相邻,光电倍增管被定位成与另一个相邻。 检测器装置可用于正电子发射断层摄影和类似技术。