公开(公告)号：US20070003006A1

公开(公告)日：2007-01-04

申请号：US11171169

申请日：2005-06-29

申请人： John Tkaczyk ,  James Leblanc ,  Wen Li ,  Deborah Walter ,  Yanfeng Du

发明人： John Tkaczyk ,  James Leblanc ,  Wen Li ,  Deborah Walter ,  Yanfeng Du

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12

CPC分类号： G01T1/2985 ,  G01T1/241 ,  G01T1/242 ,  G01T1/243 ,  G01T1/249

摘要： A computed tomography detector module is presented. The detector module includes a substrate having a topside and a bottom side. Additionally, the detector module includes a plurality of detector layers disposed on the top side of the substrate in a direction that is substantially orthogonal to the substrate, where each of the plurality of detector layers comprises a direct conversion material configured to absorb radiation, and where each of the plurality of detector layers comprises a first side and a second side. Further, the detector module includes a plurality of pixelated anode contacts is disposed on the first side of each of the plurality of detector layers. Also, the detector module includes a common cathode contact is disposed on the second side of each of the plurality of detector layers.

公开(公告)号：US20070120062A1

公开(公告)日：2007-05-31

申请号：US11291273

申请日：2005-11-30

申请人： Wen Li ,  John Tkaczyk ,  Yanfeng Du ,  James Leblanc

发明人： Wen Li ,  John Tkaczyk ,  Yanfeng Du ,  James Leblanc

IPC分类号： G01T1/24 ,  G01T1/26 ,  H01L27/146

CPC分类号： H01L27/14603 ,  G01T1/2928 ,  H01L27/14659

摘要： Briefly, in accordance with one or more embodiments, count rates may be obtained from one or more subpixels for a given pixel in an imaging system detector. Count rates may be obtained from individual subpixels, or may be from electronically binned subpixels at least in part in various subpixel arrangements where a selected subpixel arrangement may be adaptively set according to a detected count rate. For lower count rates, two or more subpixels may be electronically binned together and the counts may be obtained from the binned subpixels, for example to mitigate a charge sharing effect. For higher count rates, the count rates of a greater number of subpixels may be individually obtained, for example to mitigate a pulse pile-up effect. Detective quantum efficiency may be optimized over a wider range of photon flux rate via the adaptive subpixel arrangement.

摘要翻译： 简而言之，根据一个或多个实施例，可以从成像系统检测器中的给定像素的一个或多个子像素获得计数率。 可以从各个子像素获得计数速率，或者可以至少部分地根据检测到的计数速率自适应地选择所选择的子像素排列的各种子像素排列从电子分组的子像素获得。 对于较低的计数率，可以将两个或更多个子像素电子地分组在一起，并且可以从二进制子像素获得计数，例如以减轻电荷共享效应。 对于更高的计数率，可以单独获得更多数量的子像素的计数率，例如以减轻脉冲堆积效应。 可以通过自适应子像素排列在更宽的光子通量速率范围内优化探测量子效率。

公开(公告)号：US07488945B2

公开(公告)日：2009-02-10

申请号：US11291273

申请日：2005-11-30

申请人： Wen Li ,  John Eric Tkaczyk ,  Yanfeng Du ,  James Leblanc

发明人： Wen Li ,  John Eric Tkaczyk ,  Yanfeng Du ,  James Leblanc

IPC分类号： G01T1/24

CPC分类号： H01L27/14603 ,  G01T1/2928 ,  H01L27/14659

摘要： Count rates may be obtained from one or more subpixels for a given pixel in an imaging system detector. Count rates may be obtained from individual subpixels, or may be from electronically binned subpixels at least in part in various subpixel arrangements where a selected subpixel arrangement may be adaptively set according to a detected count rate. For lower count rates, two or more subpixels may be electronically binned together and the counts may be obtained from the binned subpixels, for example to mitigate a charge sharing effect. For higher count rates, the count rates of a greater number of subpixels may be individually obtained, for example to mitigate a pulse pile-up effect. Detective quantum efficiency may be optimized over a wider range of photon flux rate via the adaptive subpixel arrangement.

摘要翻译： 可以从成像系统检测器中的给定像素的一个或多个子像素获得计数率。 可以从各个子像素获得计数速率，或者可以至少部分地根据检测到的计数速率自适应地选择所选择的子像素排列的各种子像素排列从电子分组的子像素获得。 对于较低的计数率，可以将两个或更多个子像素电子地分组在一起，并且可以从二进制子像素获得计数，例如以减轻电荷共享效应。 对于更高的计数率，可以单独获得更多数量的子像素的计数率，例如以减轻脉冲堆积效应。 可以通过自适应子像素排列在更宽的光子通量速率范围内优化探测量子效率。

公开(公告)号：US20070092066A1

公开(公告)日：2007-04-26

申请号：US11163496

申请日：2005-10-20

申请人： J. Tkaczyk ,  Deborah Walter ,  Xiaoye Wu ,  Brian Bales ,  James Leblanc ,  Yanfeng Du

发明人： J. Tkaczyk ,  Deborah Walter ,  Xiaoye Wu ,  Brian Bales ,  James Leblanc ,  Yanfeng Du

IPC分类号： G21K3/00

CPC分类号： G21K1/10

摘要： A bowtie filter is constructed to have a fluidic envelope filled with attenuating fluid and a displacement insert that can present various x-ray attenuation profiles during a scan. The insert is designed to displace the attenuating fluid to achieve a denied attenuating or filtering profile. The insert can be rotated, twisted, moved, and otherwise contorted within the fluidic envelope as needed during the course of a scan. As the angle, position and shape of the zombie is changed, the x-ray profile of the filter changes. The insert may have a default shape when at rest, but can have its shape changed when external forces are placed thereon. As x-ray filtering needs change during the course of the scan, the insert can be compressed, stretched, and/or contorted to achieve additional filtering profiles.

摘要翻译： 弓形过滤器被构造成具有填充有衰减流体的流体信封和可在扫描期间呈现各种x射线衰减分布的位移插入件。 插入件被设计成使衰减流体移位以实现被拒绝的衰减或过滤轮廓。 在扫描过程中，插入物可以根据需要旋转，扭转，移动，并且在流体封套内扭曲。 随着僵尸的角度，位置和形状的改变，过滤器的X射线轮廓也会改变。 当静止时，插入件可以具有默认形状，但是当外力在其上放置时，其形状可以改变。 由于X射线过滤在扫描过程中需要更改，所以插入物可以被压缩，拉伸和/或扭转以实现额外的过滤轮廓。

公开(公告)号：US20070205367A1

公开(公告)日：2007-09-06

申请号：US11365791

申请日：2006-03-01

申请人： Bruno Deman ,  Peter Edic ,  James Leblanc ,  John Tkaczyk ,  Jonathan Short

发明人： Bruno Deman ,  Peter Edic ,  James Leblanc ,  John Tkaczyk ,  Jonathan Short

IPC分类号： G01T1/161

CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/5205

摘要： A system is presented. The system includes a plurality of energy integrating detector elements configured to acquire energy integrating data. Further, the system includes a plurality of energy discriminating detector elements configured to acquire energy discriminating data, where the plurality of energy integrating detector elements and the plurality of energy discriminating detector elements are arranged in a spatial relationship to form a hybrid detector, and where the plurality of energy integrating detector elements and the plurality of energy discriminating detector elements are configured to obtain respective sets of energy integrating data and energy discriminating data for use in generating an image.

摘要翻译： 提出了一个系统。 该系统包括被配置为获取能量积分数据的多个能量积分检测器元件。 此外，该系统包括多个能量鉴别检测器元件，其被配置为获取能量鉴别数据，其中多个能量积分检测器元件和多个能量鉴别检测器元件以空间关系排列以形成混合检测器，并且其中 多个能量积分检测器元件和多个能量鉴别检测器元件被配置为获得积分数据的能量集合和用于生成图像的能量鉴别数据。

公开(公告)号：US20060289777A1

公开(公告)日：2006-12-28

申请号：US11171170

申请日：2005-06-29

申请人： Wen Li ,  George Possin ,  Gregory Zeman ,  James Leblanc ,  Jonathan Short ,  Rogerio Rodrigues

发明人： Wen Li ,  George Possin ,  Gregory Zeman ,  James Leblanc ,  Jonathan Short ,  Rogerio Rodrigues

IPC分类号： G01T1/24

CPC分类号： G01T1/2018 ,  G01T1/24

摘要： In accordance with an implementation of the present technique, a detector is disclosed. The detector includes a photodetector array and a substrate layer. The photodetector array includes a plurality of photodiodes and a structure of trenches or diffusions grids that electrically isolate each photodiode of the plurality of photodiodes. The plurality of photodiodes and the structure of trenches or deep diffusions grids are disposed on a first surface of the photodetector array and a second surface opposite the first surface is bonded to a substrate layer. The substrate layer is typically made of the same semiconductor material as the photodetector array but heavily doped and conductive to provide cathode contact to the photodetector array in addition to mechanical support.

摘要翻译： 根据本技术的实现，公开了一种检测器。 检测器包括光电检测器阵列和基底层。 光电检测器阵列包括多个光电二极管和沟槽或扩散栅格的结构，其电隔离多个光电二极管中的每个光电二极管。 多个光电二极管和沟槽或深扩散栅格的结构设置在光电检测器阵列的第一表面上，并且与第一表面相对的第二表面结合到基底层。 衬底层通常由与光电检测器阵列相同的半导体材料制成，但是重掺杂和导电以除了机械支撑之外还提供与光电检测器阵列的阴极接触。

公开(公告)号：US20090095932A1

公开(公告)日：2009-04-16

申请号：US12298019

申请日：2007-04-20

申请人： James Leblanc ,  Nancy Leblanc

发明人： James Leblanc ,  Nancy Leblanc

IPC分类号： F16K3/00

CPC分类号： F16L55/105 ,  F16K3/0281 ,  F16K27/044 ,  F16L57/06

摘要： A gate valve apparatus includes an inlet side panel, and outlet side panel defining a ring recess on its inner face. The panels are fastened together and the valve gate moves between the panels. A seat ring defines a seat ring aperture and is positioned in the ring recess and oriented such that fluid pushing on the front face of the gate seals the gate against the seat ring. Removable ring fasteners countersunk below the inner surface of the seat ring extend into the outlet side panel. Removable inlet and outlet wear rings are positioned in the corresponding inlet and outlet passages, and the inner end of the outlet wear ring extends into the seat ring aperture to cover the fastener heads. The inlet and outlet wear rings have an inside diameter equal to an inside diameter of the inlet and outlet conduits.

摘要翻译： 闸阀装置包括入口侧面板和在其内表面上限定环形凹口的出口侧面板。 面板紧固在一起，阀门在面板之间移动。 座环限定了座环孔，并且定位在环形凹部中并且定向成使得在门的前表面上推动的流体将门挡住抵靠座圈。 安装在座圈内表面下方的可拆卸的环形紧固件沉入到出口侧面板上。 可拆卸的入口和出口磨损环位于相应的入口和出口通道中，出口磨损环的内端延伸到座圈孔中以覆盖紧固件头部。 入口和出口耐磨环的内径等于入口和出口导管的内径。

公开(公告)号：US20050031075A1

公开(公告)日：2005-02-10

申请号：US10743195

申请日：2003-12-22

申请人： Forrest Hopkins ,  Peter Edic ,  Samit Basu ,  Bruno De Man ,  James Leblanc ,  Xiaoye Wu ,  Deborah Walter ,  William Ross ,  Colin Wilson ,  Ricardo Avila ,  Robert Kaucic

发明人： Forrest Hopkins ,  Peter Edic ,  Samit Basu ,  Bruno De Man ,  James Leblanc ,  Xiaoye Wu ,  Deborah Walter ,  William Ross ,  Colin Wilson ,  Ricardo Avila ,  Robert Kaucic

IPC分类号： G01V5/00 ,  G01N23/04

CPC分类号： G01V5/0016 ,  A61B6/4035 ,  A61B6/4241 ,  A61B6/482 ,  G01V5/0041 ,  G01V5/005 ,  G06F19/00

摘要： A system and method for ascertaining the identity of an object within an enclosed article. The system includes an acquisition subsystem utilizing a stationary radiation source and detector, a reconstruction subsystem, a computer-aided detection (CAD) subsystem, and a 2D/3D visualization subsystem. The detector may be an energy discriminating detector. The acquisition subsystem communicates view data to the reconstruction subsystem, which reconstructs it into image data and communicates it to the CAD subsystem. The CAD subsystem analyzes the image data to ascertain whether it contains any area of interest. Any such area of interest data is sent to the reconstruction subsystem for further reconstruction, using more rigorous algorithms and further analyzed by the CAD subsystem. Other information, such as risk variables or trace chemical detection information may be communicated to the CAD subsystem to be included in its analysis.

摘要翻译： 用于确定封闭物品内物体的身份的系统和方法。 该系统包括利用固定辐射源和检测器，重建子系统，计算机辅助检测（CAD）子系统和2D / 3D可视化子系统的采集子系统。 检测器可以是能量识别检测器。 采集子系统将视图数据传送到重建子系统，将其重建为图像数据并将其传送到CAD子系统。 CAD子系统分析图像数据，以确定它是否包含任何感兴趣的区域。 任何这样的感兴趣的数据区域被发送到重建子系统以进一步重建，使用更严格的算法并由CAD子系统进一步分析。 其他信息，例如风险变量或痕量化学检测信息可以传达给CAD子系统以包含在其分析中。

公开(公告)号：US20060123990A1

公开(公告)日：2006-06-15

申请号：US11346749

申请日：2006-02-03

申请人： Joseph Tokar ,  James Leblanc

发明人： Joseph Tokar ,  James Leblanc

IPC分类号： B01D46/00

CPC分类号： B01D46/521 ,  B01D46/0001 ,  B01D46/0005 ,  B01D46/002 ,  B01D46/12 ,  B01D46/2411 ,  B01D46/527 ,  B01D2265/028 ,  B01D2267/40 ,  B01D2271/022 ,  B01D2279/60

摘要： A filter arrangement includes a first filter element having opposite first and second ends; an axial length between the first and second ends; and a plurality of flutes. Each of the flutes has a first end portion adjacent to the first filter element first end, and a second end portion adjacent to the first filter element second end. Selected ones of the flutes are open at the first end portion and closed at the second end portion; and selected ones of the flutes are closed at the first end portion and open at the second end portion. A sleeve member secured to and circumscribing the first filter element. The sleeve member is oriented relative the first filter element to extend at least 30% of the axial length of the first filter element. A seal member pressure flange at least partially circumscribes the sleeve member. The filter arrangement is particularly useful for gas turbine systems. Methods for operating and servicing filter arrangements preferably utilize constructions herein.

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。