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    High-Z cast reflector compositions and method of manufacture
    41.
    发明授权
    High-Z cast reflector compositions and method of manufacture 失效
    高Z铸造反射器组合物和制造方法

    公开(公告)号：US07310405B2

    公开(公告)日：2007-12-18

    申请号：US10259557

    申请日：2002-09-27

    申请人： Venkat Subramaniam Venkataramani ,  Steven Jude Duclos

    发明人： Venkat Subramaniam Venkataramani ,  Steven Jude Duclos

    IPC分类号： G01T1/20

    CPC分类号： G01T1/2018 ,  G01T1/202

    摘要： A scintillator pack comprises an array of scintillator pixels and an x-ray absorbing layer disposed in inter-scintillator regions between the scintillator pixels. The x-ray absorbing layer acts to absorb x-rays and protect underlying regions of the inter-scintillator regions. The x-ray absorbing layer may be formed by a number of methods including casting and melt infiltration.

    摘要翻译： 闪烁体组件包括闪烁体像素阵列和设置在闪烁体像素之间的闪烁体区域中的x射线吸收层。 X射线吸收层用于吸收x射线并保护闪烁体区域的下部区域。 X射线吸收层可以通过许多方法形成，包括铸造和熔体渗透。

    Optimized scintillator and pixilated photodiode detector array for multi-slice CT x-ray detector using backside illumination
    43.
    发明授权
    Optimized scintillator and pixilated photodiode detector array for multi-slice CT x-ray detector using backside illumination 失效
    优化的闪烁体和像素化光电二极管检测器阵列，用于使用背面照明的多层CT X射线检测器

    公开(公告)号：US06707046B2

    公开(公告)日：2004-03-16

    申请号：US10035266

    申请日：2002-01-03

    申请人： George Edward Possin ,  David Michael Hoffman ,  Bing Shen ,  Steven Jude Duclos

    发明人： George Edward Possin ,  David Michael Hoffman ,  Bing Shen ,  Steven Jude Duclos

    IPC分类号： G01T124

    CPC分类号： H01L27/14663

    摘要： A photodiode detector array includes a layer of intrinsic semiconductor material having a first doped layer on a first surface of a first conductivity type and an array of photodiodes having respective doped regions on a second surface of an opposite conductivity type. Electrical contacts on the second surface respectively contact the doped regions and convey electrical signal therefrom. Conductors extend from the electrical contacts to convey the electrical signals to output terminals of the array. A scintillator is optically coupled to the layer of intrinsic semiconductor material at the first surface thereof and can be pixelated, with individual scintillator elements aligned with and corresponding to the doped regions of the photodiode. The photodiode detector array can be mounted to a rigid printed wiring board or to a flat bottom wall surface of the scintillator.

    摘要翻译： 光电二极管检测器阵列包括在第一导电类型的第一表面上具有第一掺杂层的本征半导体材料层和在相反导电类型的第二表面上具有相应掺杂区域的光电二极管阵列。 第二表面上的电触点分别与掺杂区接触并传送电信号。 导体从电触点延伸，将电信号传送到阵列的输出端。 闪烁体在其第一表面处与本征半导体材料层光学耦合，并且可以被像素化，其中各个闪烁体元件与光电二极管的掺杂区域对准并对应。 光电二极管检测器阵列可以安装到刚性印刷线路板或闪烁器的平坦底壁表面。

    INTEGRATED NEUTRON-GAMMA RADIATION DETECTOR WITH ADAPTIVELY SELECTED GAMMA THRESHOLD
    44.
    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。

    Composite scintillator material and method of manufacture
    45.
    发明授权
    Composite scintillator material and method of manufacture 失效
    复合闪烁体材料及其制造方法

    公开(公告)号：US06911251B2

    公开(公告)日：2005-06-28

    申请号：US10097527

    申请日：2002-03-15

    申请人： Steven Jude Duclos

    发明人： Steven Jude Duclos

    IPC分类号： G21K5/02 ,  C04B35/80 ,  C09K11/00 ,  C09K11/78 ,  C09K11/84 ,  G01T1/20 ,  G01T1/202 ,  H01L31/09 ,  B32B17/12

    CPC分类号： G01T1/202 ,  Y10T428/249928 ,  Y10T428/249929 ,  Y10T428/24993 ,  Y10T428/249931 ,  Y10T428/24994

    摘要： An optically nonisotropic composite material. The composite material includes two materials, a transparent bulk optical material and radiation absorbing or reflecting fibers embedded within the bulk material. The fibers are substantially parallel to one another and tend to channel the radiation along the direction of the fibers. The bulk material may be a scintillator, in which case the fibers will tend to channel scintillating radiation along the direction of the fibers. The composite material may be used in a high spatial resolution x-ray device, such as a CT scanner. The composite material may also be used in an electromagnetic radiation detection device. Advantageously, the fibers tend to channel radiation along the fibers towards photodetector cells of the radiation detection device thereby increasing spatial resolution. The composite material may be made by forming powder around sacrificial fibers and isostatic pressing, followed by removing the sacrificial fibers, sintering to form a transparent bulk material with holes, and then filling the holes with the reflecting or absorbing fiber material.

    摘要翻译： 光学非均质复合材料。 复合材料包括两种材料：透明体光学材料和嵌入散装材料内的辐射吸收或反射纤维。 纤维基本上彼此平行并且倾向于沿着纤维的方向引导辐射。 散装材料可以是闪烁体，在这种情况下，纤维将倾向于沿着纤维的方向引导闪烁的辐射。 复合材料可以用于高空间分辨率X射线装置，例如CT扫描仪。 复合材料也可以用于电磁辐射检测装置。 有利地，纤维倾向于沿着纤维将辐射引导到放射线检测装置的光电检测器单元，从而增加空间分辨率。 复合材料可以通过在牺牲纤维周围形成粉末和等静压来制造，然后除去牺牲纤维，烧结以形成具有孔的透明散装材料，然后用反射或吸收纤维材料填充孔。

    Composite scintillator material and method of manufacture
    48.
    发明授权
    Composite scintillator material and method of manufacture 失效
    复合闪烁体材料及其制造方法

    公开(公告)号：US06391434B1

    公开(公告)日：2002-05-21

    申请号：US09306027

    申请日：1999-05-06

    申请人： Steven Jude Duclos

    发明人： Steven Jude Duclos

    IPC分类号： B32B1712

    CPC分类号： G01T1/202 ,  Y10T428/249928 ,  Y10T428/249929 ,  Y10T428/24993 ,  Y10T428/249931 ,  Y10T428/24994

    摘要： An optically nonisotropic composite material. The composite material includes two materials, a transparent bulk optical material and radiation absorbing or reflecting fibers embedded within the bulk material. The fibers are substantially parallel to one another and tend to channel the radiation along the direction of the fibers. The bulk material may be a scintillator, in which case the fibers will tend to channel scintillating radiation along the direction of the fibers. The composite material may be used in a high spatial resolution x-ray device, such as a CT scanner. The composite material may also be used in an electromagnetic radiation detection device. Advantageously, the fibers tend to channel radiation along the fibers towards photodetector cells of the radiation detection device thereby increasing spatial resolution. The composite material may be made by forming powder around sacrificial fibers and isostatic pressing, followed by removing the sacrificial fibers, sintering to form a transparent bulk material with holes, and then filling the holes with the reflecting or absorbing fiber material.

    摘要翻译： 光学非均质复合材料。 复合材料包括两种材料：透明体光学材料和嵌入散装材料内的辐射吸收或反射纤维。 纤维基本上彼此平行并且倾向于沿着纤维的方向引导辐射。 散装材料可以是闪烁体，在这种情况下，纤维将倾向于沿着纤维的方向引导闪烁的辐射。 复合材料可以用于高空间分辨率X射线装置，例如CT扫描仪。 复合材料也可以用于电磁辐射检测装置。 有利地，纤维倾向于沿着纤维将辐射引导到放射线检测装置的光电检测器单元，从而增加空间分辨率。 复合材料可以通过在牺牲纤维周围形成粉末和等静压来制造，然后除去牺牲纤维，烧结以形成具有孔的透明散装材料，然后用反射或吸收纤维材料填充孔。

    Composite ceramic article and method of making
    49.
    发明授权
    Composite ceramic article and method of making 失效
    复合陶瓷制品及其制造方法

    公开(公告)号：US06361735B1

    公开(公告)日：2002-03-26

    申请号：US09388091

    申请日：1999-09-01

    申请人： Venkat Subramaniam Venkataramani ,  Charles David Greskovich ,  Steven Jude Duclos ,  James Anthony Brewer

    发明人： Venkat Subramaniam Venkataramani ,  Charles David Greskovich ,  Steven Jude Duclos ,  James Anthony Brewer

    IPC分类号： C04B3564

    CPC分类号： B28B1/24 ,  B28B1/008 ,  C04B35/50 ,  C09K11/7769

    摘要： The invention relates to a method of forming a composite article comprising the steps of forming a plurality of green ceramic elements, wherein the green ceramic elements are arranged side by side, and the green ceramic elements are spaced from each other by gaps; filling the gaps with a second material; and sintering the green ceramic elements with the second material to form the composite article. The second material, after being sintered, acts as a reflector layer to prevent substantially all light in one of the sintered ceramic elements from reaching an adjacent sintered ceramic element. The step of filling the gaps may be carried out by forming a slurry containing the second material in powder form and immersing the green ceramic elements in the slurry. The process of cosintering the green ceramic elements with the reflector composition provides improved dimensional control during sintering and reduces processing costs.

    摘要翻译： 本发明涉及一种形成复合制品的方法，包括以下步骤：形成多个绿色陶瓷元件，其中绿色陶瓷元件并排布置，并且绿色陶瓷元件通过间隙彼此间隔开; 用第二种材料填充间隙; 以及用所述第二材料烧结所述生陶瓷元件以形成所述复合制品。 烧结后的第二种材料用作反射层，以防止其中一种烧结陶瓷元件的基本上所有的光到达相邻的烧结陶瓷元件。 填充间隙的步骤可以通过形成含有粉末形式的第二材料的浆料并将生坯陶瓷元件浸入浆料中来进行。 将生坯陶瓷元件与反射器组合物串联的过程在烧结过程中提供了改进的尺寸控制，并降低了加工成本。

    Self aligning inter-scintillator reflector x-ray damage shield and method of manufacture
    50.
    发明授权
    Self aligning inter-scintillator reflector x-ray damage shield and method of manufacture 有权
    自对准闪烁体反射器x射线损伤屏蔽和制造方法

    公开(公告)号：US06298113B1

    公开(公告)日：2001-10-02

    申请号：US09499323

    申请日：2000-02-07

    申请人： Steven Jude Duclos ,  Jacob Charles Bortscheller ,  George William Taylor ,  Christopher Jay Morse

    发明人： Steven Jude Duclos ,  Jacob Charles Bortscheller ,  George William Taylor ,  Christopher Jay Morse

    IPC分类号： G01T120

    CPC分类号： G01T1/2002 ,  G01T1/202

    摘要： A scintillator pack including an x-ray damage shield. The scintillator pack has an array of scintillator pixels. A scintillation light reflecting layer that reflects scintillation light from the pixels is included at least between the scintillator pixels in inter-scintillator regions. An x-ray absorbing layer acts as the x-ray damage shield to protect the portions of the scintillation light reflecting layer from x-rays. The x-ray absorbing layer is formed selectively and in a self aligned manner in regions over the inter-scintillator regions.

    摘要翻译： 包括X射线损伤屏蔽的闪烁体组。 闪烁体组件具有闪烁体像素阵列。 反射来自像素的闪烁光的闪烁光反射层至少包括在闪烁体区域中的闪烁体像素之间。 X射线吸收层用作x射线损伤屏蔽，以保护闪烁光反射层的部分免受x射线影响。 x射线吸收层在闪烁体区域之间的区域中以自对准的方式选择性地形成。