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    Time-of-flight capable high resolution pet detector
    1.
    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

    申请人： Kent Burr ,  Adrian Ivan ,  James Leblanc

    发明人： Kent Burr ,  Adrian Ivan ,  James Leblanc

    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。

    Systems and methods to localize optical emission in radiation detectors
    2.
    发明申请
    Systems and methods to localize optical emission in radiation detectors 有权
    定位辐射探测器中的光发射的系统和方法

    公开(公告)号：US20060197022A1

    公开(公告)日：2006-09-07

    申请号：US11072361

    申请日：2005-03-04

    申请人： Kent Burr ,  James LeBlanc ,  Adrian Ivan ,  Donald Castleberry

    发明人： Kent Burr ,  James LeBlanc ,  Adrian Ivan ,  Donald Castleberry

    IPC分类号： G01T1/20

    CPC分类号： G01T1/1644 ,  G01T1/2985

    摘要： A method for identifying localized optical emission is disclosed. The method involves identifying a region, which corresponds to a plurality of scintillator units of a scintillator, on a position sensitive photodetector that is impacted by one or more photons. The method further involves identifying a readout channel of a pixellated photodetector array that corresponds to a pixel associated with a scintillator unit impacted by the one or more photons. The method, further involves, identifying the scintillator unit based on the region and the readout channel.

    摘要翻译： 公开了一种用于识别局部光发射的方法。 该方法包括在由一个或多个光子影响的位置敏感光电检测器上识别对应于闪烁体的多个闪烁体单元的区域。 该方法还涉及识别像素化光电检测器阵列的读出通道，其对应于与由一个或多个光子影响的闪烁体单元相关联的像素。 该方法还涉及基于区域和读出通道识别闪烁体单元。

    Systems and methods to localize optical emission in radiation detectors
    3.
    发明申请
    Systems and methods to localize optical emission in radiation detectors 有权

    公开(公告)号：US20060197025A1

    公开(公告)日：2006-09-07

    申请号：US11072582

    申请日：2005-03-04

    申请人： Kent Burr ,  James LeBlanc ,  Adrian Ivan ,  Donald Castleberry

    发明人： Kent Burr ,  James LeBlanc ,  Adrian Ivan ,  Donald Castleberry

    IPC分类号： G01T1/20 ,  G01T1/24

    CPC分类号： G01T1/2018

    摘要： A method for localizing optical emission is disclosed. The method involves identifying a first readout channel of a first pixellated photodetector array based on an impact of a first photon on the first pixellated photodetector array. The first photon is emitted by a scintillator unit of a scintillator array and the first readout channel corresponds to a column of one or more pixels of the first pixellated photodetector array. The method also involves identifying a second readout channel of a second pixellated photodetector array based on an impact of a second photon on the second pixellated photodetector array. The second photon is emitted by the scintillator unit and the second readout channel corresponds to a row of one or more pixels of the second pixellated photodetector array. The method further involves identifying the scintillator unit based on the first readout channel and the second readout channel.

    Systems and methods for improving position resolution of charge-sharing position sensitive detectors
    4.
    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

    申请人： Kent Burr ,  Adrian Ivan ,  James LeBlanc

    发明人： Kent Burr ,  Adrian Ivan ,  James LeBlanc

    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。

    Semiconductor material for radiation absorption and detection
    6.
    发明授权
    Semiconductor material for radiation absorption and detection 有权
    用于辐射吸收和检测的半导体材料

    公开(公告)号：US08178008B2

    公开(公告)日：2012-05-15

    申请号：US12211894

    申请日：2008-09-17

    申请人： Brent Allen Clothier ,  Adrian Ivan ,  Daniel Bruno McDevitt

    发明人： Brent Allen Clothier ,  Adrian Ivan ,  Daniel Bruno McDevitt

    IPC分类号： H01M4/88

    CPC分类号： G01T3/00 ,  H01L31/032 ,  H01L31/036

    摘要： A semiconductor material for radiation absorption and detection comprising a composition of stoichiometry Li(M12+, M22+, M32+, . . . )(G1V, G2V, G3V, . . . ) and exhibiting an antifluorite-type order, where Li=1, (M12++M22++M32++ . . . )=1, and (G1V+G2V+G3V+ . . . )=1. The material provides two useful characteristics: [1] a high Li-site density, which when enriched in 6Li, produces exceptional neutron-absorbing capabilities and [2] a semiconducting band-gap for the efficient conversion of absorbed photon and neutron energies into electrical currents. These characteristics can be exploited in applications for power generation or the spectroscopic detection of gamma and neutron radiation. The material can be tailored so as to detect only gamma photons, detect only neutron particles, or simultaneously detect gamma photons and neutron particles.

    摘要翻译： 一种用于辐射吸收和检测的半导体材料，其包含Li（M12 +，M22 +，M32 +，...）（G1V，G2V，G3V，...）的化学计量组成，并显示出耐氟石型次序，其中Li = 1， M12 ++ M22 ++ M32 ++ ...）= 1，（G1V + G2V + G3V + ...）= 1。 该材料提供了两个有用的特征：[1]高Li位密度，当富集6Li时，产生特殊的中子吸收能力和[2]半导体带隙，用于有效地将吸收的光子和中子能转化为电 电流。 这些特性可用于发电或伽马和中子辐射的光谱检测应用。 可以调整材料，以便仅检测伽马光子，仅检测中子粒子，或同时检测伽马光子和中子粒子。

    Integrated neutron-gamma radiation detector with optical waveguide and neutron scintillating material
    8.
    发明授权
    Integrated neutron-gamma radiation detector with optical waveguide and neutron scintillating material 失效
    具有光波导和中子闪烁材料的集成中子伽马辐射探测器

    公开(公告)号：US07741612B2

    公开(公告)日：2010-06-22

    申请号：US12027828

    申请日：2008-02-07

    申请人： Brent Allen Clothier ,  Daniel Bruno McDevitt ,  Adrian Ivan

    发明人： Brent Allen Clothier ,  Daniel Bruno McDevitt ,  Adrian Ivan

    IPC分类号： G01T3/00

    CPC分类号： G01T3/06 ,  G01T1/202

    摘要： An integrated neutron-gamma radiation detector includes a gamma sensing element, a neutron sensing element comprising a neutron scintillating material at least partially surrounded by an optical waveguide material, and a photosensing element optically coupled to both the gamma sensing element and the neutron sensing element. A portion of the gamma sensing element is capable of being disposed within a central aperture of the neutron sensing element. In one aspect, the neutron sensing element comprises a plurality of cylindrical, concentric shells forming the central aperture for receiving the gamma sensing element. In another aspect, the neutron sensing element comprises a plurality of strands forming a multi-layered structure and forming the central aperture for receiving the gamma sensing element.

    摘要翻译： 集成的中子伽马辐射检测器包括伽马感测元件，中子感测元件，其包括至少部分地由光波导材料包围的中子闪烁材料，以及与伽马感测元件和中子感测元件两者光学耦合的感光元件。 伽马感测元件的一部分能够设置在中子感测元件的中心孔内。 在一个方面，中子感测元件包括形成用于接收伽马感测元件的中心孔的多个圆柱形同心壳。 在另一方面，中子感测元件包括形成多层结构并形成用于接收伽马感测元件的中心孔的多个线。

    INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH OPTICAL WAVEGUIDE AND NEUTRON SCINTILLATING MATERIAL
    9.
    发明申请
    INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH OPTICAL WAVEGUIDE AND NEUTRON SCINTILLATING MATERIAL 失效
    集成的中子 - 伽马辐射检测器，具有光波导和中子扫描材料

    公开(公告)号：US20090200480A1

    公开(公告)日：2009-08-13

    申请号：US12027828

    申请日：2008-02-07

    申请人： Brent Allen Clothier ,  Daniel Bruno McDevitt ,  Adrian Ivan

    发明人： Brent Allen Clothier ,  Daniel Bruno McDevitt ,  Adrian Ivan

    IPC分类号： G01T3/06 ,  G01T3/00

    CPC分类号： G01T3/06 ,  G01T1/202

    摘要： An integrated neutron-gamma radiation detector includes a gamma sensing element, a neutron sensing element comprising a neutron scintillating material at least partially surrounded by an optical waveguide material, and a photosensing element optically coupled to both the gamma sensing element and the neutron sensing element. A portion of the gamma sensing element is capable of being disposed within a central aperture of the neutron sensing element. In one aspect, the neutron sensing element comprises a plurality of cylindrical, concentric shells forming the central aperture for receiving the gamma sensing element. In another aspect, the neutron sensing element comprises a plurality of strands forming a multi-layered structure and forming the central aperture for receiving the gamma sensing element.

    摘要翻译： 集成的中子伽马辐射检测器包括伽马感测元件，中子感测元件，其包括至少部分地由光波导材料包围的中子闪烁材料，以及与伽马感测元件和中子感测元件两者光学耦合的感光元件。 伽马感测元件的一部分能够设置在中子感测元件的中心孔内。 在一个方面，中子感测元件包括形成用于接收伽马感测元件的中心孔的多个圆柱形同心壳。 在另一方面，中子感测元件包括形成多层结构并形成用于接收伽马感测元件的中心孔的多个线。

    INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH ADAPTIVELY SELECTED GAMMA THRESHOLD
    10.
    发明申请
    INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH ADAPTIVELY SELECTED GAMMA THRESHOLD 有权
    集成的中子伽马射线探测器，具有适应选择的伽玛阈值

    公开(公告)号：US20090140150A1

    公开(公告)日：2009-06-04

    申请号：US11949095

    申请日：2007-12-03

    申请人： Adrian Ivan ,  Steven Jude Duclos ,  Daniel Bruno McDevitt ,  James Richard Williams ,  Brent Allen Clothier ,  Jeffrey Seymour Gordon

    发明人： Adrian Ivan ,  Steven Jude Duclos ,  Daniel Bruno McDevitt ,  James Richard Williams ,  Brent Allen Clothier ,  Jeffrey Seymour Gordon

    IPC分类号： G01T1/20

    CPC分类号： G01T3/06 ,  G01T1/1642 ,  G01T1/17

    摘要： An integrated radiation detector having a pulse-mode operating photosensor optically coupled to a gamma sensing element and a neutron sensing element is disclosed. The detector includes pulse shape and processing electronics package that uses an analog to digital converter (ADC) and a charge to digital converter (QDC) to determine scintillation decay times and classify radiation interactions by radiation type. The pulse shape and processing electronics package determines a maximum gamma energy from the spectrum associated with gamma rays detected by the gamma sensing element to adaptively select a gamma threshold for the neutron sensing element. A light pulse attributed to the neutron sensing element is a valid neutron event when the amplitude of the light pulse is above the gamma threshold.

    摘要翻译： 公开了一种具有光耦合到伽马感测元件和中子感测元件的脉冲模式操作光电传感器的集成辐射探测器。 检测器包括脉冲形状和处理电子封装，其使用模数转换器（ADC）和电荷到数字转换器（QDC）来确定闪烁衰减时间并通过辐射类型对辐射相互作用进行分类。 脉冲形状和处理电子器件封装确定与由伽马感测元件检测到的伽马射线相关联的光谱的最大伽马能量，以自适应地选择中子感测元件的伽马阈值。 归因于中子感测元件的光脉冲是当光脉冲的幅度高于伽马阈值时的有效中子事件。