公开(公告)号：US07532703B2

公开(公告)日：2009-05-12

申请号：US11692304

申请日：2007-03-28

申请人： Yanfeng Du ,  J. Eric Tkaczyk ,  David M. Hoffman

发明人： Yanfeng Du ,  J. Eric Tkaczyk ,  David M. Hoffman

IPC分类号： A61B6/00

CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  G01T1/20 ,  G01T1/2018 ,  G01T1/242 ,  G01T1/249

摘要： A diagnostic imaging system includes a high frequency electromagnetic energy source that emits a beam of high frequency electromagnetic energy toward an object to be imaged. An energy discriminating (ED) detector receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source. The ED detector includes a direct conversion layer dynamically operable in a photon counting mode in one view and in an integrating mode in another view and an indirect conversion layer. A data acquisition system (DAS) is operably connected to the ED detector and a computer operably connected to the DAS.

摘要翻译： 诊断成像系统包括向待成像对象发射高频电磁能束的高频电磁能源。 能量识别（ED）检测器接收由高频电磁能源发出的高频电磁能。 ED检测器包括在一个视图中以在另一视图和间接转换层中的积分模式中以光子计数模式动态操作的直接转换层。 数据采集​​系统（DAS）可操作地连接到ED检测器和可操作地连接到DAS的计算机。

公开(公告)号：US20080240339A1

公开(公告)日：2008-10-02

申请号：US11692304

申请日：2007-03-28

申请人： Yanfeng Du ,  J. Eric Tkaczyk ,  David M. Hoffman

发明人： Yanfeng Du ,  J. Eric Tkaczyk ,  David M. Hoffman

IPC分类号： A61B6/00 ,  G01T1/161

CPC分类号： G01T1/2985 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  G01T1/20 ,  G01T1/2018 ,  G01T1/242 ,  G01T1/249

摘要： A diagnostic imaging system includes a high frequency electromagnetic energy source that emits a beam of high frequency electromagnetic energy toward an object to be imaged. An energy discriminating (ED) detector receives high frequency electromagnetic energy emitted by the high frequency electromagnetic energy source. The ED detector includes a direct conversion layer dynamically operable in a photon counting mode in one view and in an integrating mode in another view and an indirect conversion layer. A data acquisition system (DAS) is operably connected to the ED detector and a computer operably connected to the DAS.

摘要翻译： 诊断成像系统包括向待成像对象发射高频电磁能束的高频电磁能源。 能量识别（ED）检测器接收由高频电磁能源发出的高频电磁能。 ED检测器包括在一个视图中以在另一视图和间接转换层中的积分模式中以光子计数模式动态操作的直接转换层。 数据采集​​系统（DAS）可操作地连接到ED检测器和可操作地连接到DAS的计算机。

公开(公告)号：US20060133563A1

公开(公告)日：2006-06-22

申请号：US11018175

申请日：2004-12-20

申请人： Forrest Hopkins ,  Walter Dixon ,  Clifford Bueno ,  Yanfeng Du ,  Gregory Mohr ,  Paul Fitzgerald ,  Thomas Birdwell

发明人： Forrest Hopkins ,  Walter Dixon ,  Clifford Bueno ,  Yanfeng Du ,  Gregory Mohr ,  Paul Fitzgerald ,  Thomas Birdwell

IPC分类号： H05G1/60 ,  A61B6/00 ,  G01N23/00 ,  G21K1/12 ,  G01N23/06

CPC分类号： A61B6/4241 ,  A61B6/4035 ,  A61B6/405 ,  G01N23/04

摘要： An energy discrimination radiography system includes at least one radiation source configured to alternately irradiate a component with radiation characterized by at least two energy spectra, where the component has a number of constituents. At least one radiation detector is configured to receive radiation passing through the component and a computer is operationally coupled to the detector. The computer is configured to receive data corresponding to each of the energy spectra for a scan of the component, process the data to generate a multi-energy data set, and decompose the multi-energy data set to generate material characterization images in substantially real time. A method for inspecting the component includes irradiating the component, receiving a data stream of energy discriminated data, processing the energy discriminated data, to generate a multi-energy data set, and decomposing the multi-energy data set, to generate material characterization images in substantially real time.

摘要翻译： 能量鉴别放射线照相系统包括至少一个辐射源，其被配置为交替地用具有至少两个能量谱的辐射照射组分，其中该组分具有多个成分。 至少一个辐射检测器被配置为接收通过部件的辐射，并且计算机可操作地耦合到检测器。 计算机被配置为接收对应于每个能量谱的数据，用于组件的扫描，处理数据以生成多能数据集，并且分解多能数据集以基本上实时地产生材料表征图像 。 用于检查部件的方法包括：照射该部件，接收能量鉴别数据的数据流，处理能量鉴别数据，生成多能数据集，并分解多能数据集，以产生材料表征图像 实质上是实时的。

公开(公告)号：US20060056581A1

公开(公告)日：2006-03-16

申请号：US10939787

申请日：2004-09-13

申请人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

发明人： David Hoffman ,  James LeBlanc ,  John Tkaczyk ,  Robert Senzig ,  Yanfeng Du

IPC分类号： H05G1/60 ,  A61B6/00

CPC分类号： G01T1/2928 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/5205

摘要： A CT detector capable of energy discrimination and direct conversion is disclosed. The detector includes multiple layers of semiconductor material with the layers having varying thicknesses. The detector is constructed to be segmented in the x-ray penetration direction so as to optimize count rate performance as well as avoid saturation. The detector also includes variable pixel pitch and a flexible binning of pixels to further enhance count rate performance.

公开(公告)号：US20050084069A1

公开(公告)日：2005-04-21

申请号：US10687131

申请日：2003-10-16

申请人： Yanfeng Du ,  John Tkaczyk

发明人： Yanfeng Du ,  John Tkaczyk

IPC分类号： A61B6/00 ,  A61B6/03 ,  H05G1/64

CPC分类号： A61B6/583 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/405 ,  A61B6/482

摘要： A method for analyzing materials in an object includes acquiring x-ray projection data of the object at high energy and at low energy for a plurality of views. The acquired x-ray projection data is utilized in a material decomposition to determine material densities at each pixel for two selected basis materials. A composition of an object at each pixel is determined utilizing a determined mapping of material density regions for the two selected basis materials. An image indicative of the composition of the object is displayed utilizing the determined composition.

摘要翻译： 用于分析对象中的材料的方法包括以高能量和低能量获取多个视图的物体的X射线投影数据。 所获取的X射线投影数据用于材料分解以确定两个所选基础材料的每个像素处的材料密度。 使用所选择的两种材料的材料密度区域的确定的映射来确定每个像素处的对象的组成。 使用所确定的构图来显示表示对象的构图的图像。

公开(公告)号：US20120049079A1

公开(公告)日：2012-03-01

申请号：US12873107

申请日：2010-08-31

申请人： Brian David Yanoff ,  Charles Gerard Woychik ,  Yanfeng Du ,  James Wilson Rose

发明人： Brian David Yanoff ,  Charles Gerard Woychik ,  Yanfeng Du ,  James Wilson Rose

IPC分类号： G01T1/24

CPC分类号： G01T1/244 ,  H01L24/13 ,  H01L24/16 ,  H01L24/48 ,  H01L24/73 ,  H01L2224/1319 ,  H01L2224/13561 ,  H01L2224/13582 ,  H01L2224/13644 ,  H01L2224/13647 ,  H01L2224/16225 ,  H01L2224/16227 ,  H01L2224/48227 ,  H01L2224/73204 ,  H01L2924/00014 ,  H01L2924/14 ,  H01L2924/1433 ,  H01L2924/00 ,  H01L2224/45099 ,  H01L2224/45015 ,  H01L2924/207

摘要： An electronic assembly is provided. The assembly comprises a substrate having a plurality of conductive contacts disposed on a surface of the substrate. The substrate comprises a dielectric material. The assembly comprises a detector having a plurality of conductive contacts disposed on a surface of the detector which is adjacent to the surface of the substrate. At least one compliant interconnect is disposed between the substrate and the detector. The conductive contacts of the substrate and the conductive contacts of the detector are in electrical communication with the compliant interconnect via a conductive epoxy. The compliant interconnect comprises a polymer core having an electrically conductive outer surface. In certain embodiments, the assembly comprises an interposer. In certain embodiments, an under-fill is disposed between the surface of the substrate and the surface of the detector.

摘要翻译： 提供电子组件。 组件包括具有设置在基板的表面上的多个导电触点的基板。 基板包括电介质材料。 组件包括检测器，其具有设置在检测器的与衬底表面相邻的表面上的多个导电触点。 在衬底和检测器之间设置至少一个兼容互连。 衬底的导电触点和检测器的导电触点经由导电环氧树脂与柔性互连电连接。 兼容互连包括具有导电外表面的聚合物芯。 在某些实施例中，组件包括插入件。 在某些实施例中，底部填充物设置在基板的表面和检测器的表面之间。

公开(公告)号：US20100166142A1

公开(公告)日：2010-07-01

申请号：US11756027

申请日：2007-05-31

申请人： Yanfeng Du ,  Forrest Frank Hopkins ,  Joseph Bendahan

发明人： Yanfeng Du ,  Forrest Frank Hopkins ,  Joseph Bendahan

IPC分类号： G01N23/08 ,  G01N23/02 ,  G01N23/06

CPC分类号： G01N23/09

摘要： Disclosed herein is a method for detecting high atomic number elements in an article by using radiation having two different energies. The detecting of high atomic number elements can be accomplished by using an algorithm, curve fitting or using a data table. Disclosed herein too is a radiation system that uses the aforementioned method for detecting high atomic number elements.

摘要翻译： 本文公开了一种通过使用具有两种不同能量的辐射来检测物品中的高原子数元素的方法。 高原子数元素的检测可以通过使用算法，曲线拟合或使用数据表来完成。 这里也公开了使用上述检测高原子数元素的方法的辐射系统。

公开(公告)号：US07599465B2

公开(公告)日：2009-10-06

申请号：US11692086

申请日：2007-03-27

申请人： Deborah Joy Walter ,  Yanfeng Du ,  Kelly Lynn Piacsek

发明人： Deborah Joy Walter ,  Yanfeng Du ,  Kelly Lynn Piacsek

IPC分类号： A61B6/00

CPC分类号： A61B6/405 ,  A61B6/032 ,  A61B6/4035 ,  A61B6/4042 ,  A61B6/4241 ,  A61B6/481 ,  A61B6/482 ,  A61B6/504 ,  A61B6/583 ,  G06T7/0012 ,  G06T7/136 ,  G06T2207/10081 ,  G06T2207/30032 ,  G06T2207/30101

摘要： An imaging scanner includes a radiation source, a radiation detector, and a computer programmed to decompose CT data acquired by the radiation detector into a set of pixels, each pixel having at least a first basis material content and a second basis material content. The computer is further programmed to identify a first subset of the set of pixels as a possible embolism, based on the content of the first basis material and the content of the second basis material.

摘要翻译： 成像扫描器包括辐射源，辐射检测器和被编程为将由辐射检测器获取的CT数据分解为一组像素的计算机，每个像素具有至少第一基础材料内容和第二基础材料内容。 计算机还被编程为基于第一基础材料的内容和第二基础材料的内容，将该组像素的第一子集识别为可能的栓塞。

公开(公告)号：US20090232277A1

公开(公告)日：2009-09-17

申请号：US12178128

申请日：2008-07-23

申请人： Forrest Frank Hopkins ,  Clifford Bueno ,  Yanfeng Du ,  Joseph Bendahan

发明人： Forrest Frank Hopkins ,  Clifford Bueno ,  Yanfeng Du ,  Joseph Bendahan

IPC分类号： G01N23/04

CPC分类号： G01N23/046 ,  G01N2223/419 ,  G01N2223/501 ,  G01N2223/643

摘要： An inspection system is provided. The inspection system includes at least one radiation source including single or multiple energies and configured to transmit a radiation beam through an object under inspection. The inspection system further includes an array of detectors configured to receive multiple radiation beams transmitted through the object, wherein the array of detectors are oriented at different angles with respect to the radiation beam and wherein at least one of the radiation source, and the array of detectors or the object is configured to be actuated in a translational direction relative to each other. The inspection system further includes processing circuitry coupled to the array of detectors and configured to generate a three dimensional image of the object.

摘要翻译： 提供检查系统。 检查系统包括至少一个包括单个或多个能量的辐射源，并且被配置为将辐射束透过被检查物体。 检查系统还包括检测器阵列，其被配置为接收透过物体的多个辐射束，其中检测器阵列相对于辐射束以不同的角度定向，并且其中辐射源和阵列中的至少一个 检测器或物体被配置为在相对于彼此的平移方向上被致动。 检查系统还包括耦合到检测器阵列并被配置为产生对象的三维图像的处理电路。

公开(公告)号：US07382853B2

公开(公告)日：2008-06-03

申请号：US10904736

申请日：2004-11-24

申请人： Jerome S. Arenson ,  David Ruimi ,  Lev Greenberg ,  Yanfeng Du

发明人： Jerome S. Arenson ,  David Ruimi ,  Lev Greenberg ,  Yanfeng Du

IPC分类号： H05G1/26

CPC分类号： G01T1/1644 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4241 ,  A61B6/482 ,  A61B6/583 ,  G01T1/1647 ,  G06T5/002 ,  G06T5/20 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2207/30112 ,  Y10S378/901

摘要： An adaptive CT data acquisition system and technique is presented whereby radiation emitted for CT data acquisition is dynamically controlled to limit exposure to those detectors of a CT detector assembly that may be particularly susceptible to saturation during a given data acquisition. The data acquisition technique recognizes that for a given subject size and position that pre-subject filtering and collimating of a radiation beam may be insufficient to completely prevent detector saturation. Therefore, the present invention includes implementation of a number of CT data correction techniques for correcting otherwise unusable data of a saturated CT detector. These data correction techniques include a nearest neighbor correction, off-centered phantom correction, off-centered synthetic data correction, scout data correction, planar radiogram correction, and a number of others. The invention is applicable with energy discriminating CT systems as well as with conventional CT systems and other multi-energy CT systems, such as dual kVp-based systems.

摘要翻译： 提出了一种自适应CT数据采集系统和技术，其中动态地控制用于CT数据采集的辐射，以限制在给定数据采集期间可能特别容易饱和的CT检测器组件的那些检测器的暴露。 数据采集​​技术认识到，对于给定的主体大小和位置，预辐射滤波和辐射束的准直可能不足以完全防止检测器饱和。 因此，本发明包括实现用于校正饱和CT检测器的其他不可用数据的多个CT数据校正技术。 这些数据校正技术包括最近邻校正，偏心幻像校正，偏心合成数据校正，侦察数据校正，平面放射线图校正以及其他数目。 本发明适用于能量识别CT系统以及常规CT系统和其他多能CT系统，例如基于双kVp的系统。