Positron emission detectors and configurations
    1.
    发明授权
    Positron emission detectors and configurations 有权
    正电子发射探测器和配置

    公开(公告)号:US07750311B2

    公开(公告)日:2010-07-06

    申请号:US11929349

    申请日:2007-10-30

    Abstract: A three-dimensional detector module for use in detecting annihilation photons generated by positrons emitted from radio-labeled sites within a body is formed from multiple solid state photo-detectors attached to one or more scintillators. Each photo-detector can be attached to a scintillator to form a photo-detector/scintillator combination and multiple photo-detector/scintillator combinations can be arranged in an array. Alternatively, multiple photo-detectors can be attached to the surface of a single scintillator to form an array. Multiple arrays are then stacked to form a photo-detector module. The modules can then be assembled to form a sheet of photo-detector modules. Multiple sheets or multiple modules can then be arranged around a body to detect emissions from radio-labeled sites in the body. Multiple position sensors attached to the photo-detectors, arrays or modules provide the ability to locate the source of the positron emissions from the labeled sites in the body and generate an image of the emission site. A series of novel PET configurations can be constructed from these detector modules, making PET scanners portable, more sensitive and flexible to be used in numerous different operational configurations, such as operating room, emergency rooms, critical care units, or battlefield.

    Abstract translation: 用于检测由身体内的放射标记位点发射的正电子产生的湮灭光子的三维检测器模块由连接到一个或多个闪烁体的多个固态光检测器形成。 每个光检测器可以连接到闪烁体以形成光检测器/闪烁体组合,并且多个光检测器/闪烁体组合可以排列成阵列。 或者,可以将多个光电检测器附接到单个闪烁体的表面以形成阵列。 然后堆叠多个阵列以形成光电检测器模块。 然后可以组装模块以形成一张光电检测器模块。 然后可以在身体周围布置多张或多个模块,以检测体内放射性标记位点的排放。 连接到光电检测器,阵列或模块的多位置传感器提供了从体内标记位点定位正电子发射源并产生发射位点的图像的能力。 可以从这些检测器模块构建一系列新颖的PET配置,使PET扫描仪便携,更灵敏和灵活,可用于许多不同的操作配置,如手术室,急诊室,重症监护室或战场。

    Apparatus and method for applying feedback control to a magnetic lens
    2.
    发明授权
    Apparatus and method for applying feedback control to a magnetic lens 有权
    将反馈控制应用于磁性透镜的装置和方法

    公开(公告)号:US06891167B2

    公开(公告)日:2005-05-10

    申请号:US09882818

    申请日:2001-06-15

    Abstract: An apparatus configured to control a magnetic field strength of a magnetic lens is provided. The apparatus may include a magnetic sensor configured to generate an output signal responsive to a first magnetic field strength of the magnetic lens. The apparatus may also include a control circuit coupled to the magnetic sensor and the magnetic sensor. The control circuit may be configured to receive the output signal from the magnetic lens and to receive an input signal responsive to a predetermined magnetic field strength. The control circuit may be further configured to generate a control signal responsive to the output signal and the input signal. Additionally, the control circuit may be configured to apply a current to the magnetic lens such that a second magnetic field strength may be generated within the magnetic lens closer to the predetermined magnetic field strength than the first magnetic strength.

    Abstract translation: 提供一种被配置为控制磁性透镜的磁场强度的装置。 该装置可以包括被配置为响应于磁性透镜的第一磁场强度而产生输出信号的磁传感器。 该装置还可以包括耦合到磁传感器和磁传感器的控制电路。 控制电路可以被配置为从磁性透镜接收输出信号并响应于预定的磁场强度接收输入信号。 控制电路还可以被配置为响应于输出信号和输入信号产生控制信号。 此外,控制电路可以被配置为向磁性透镜施加电流,使得在磁性透镜内可以产生比第一磁场强度更接近预定磁场强度的第二磁场强度。

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