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公开(公告)号：US5691679A
公开(公告)日：1997-11-25
申请号：US764351
申请日：1996-12-12
申请人： Robert Adolph Ackermann , Kenneth Gordon Herd , Evangelos Trifon Laskaris , John Eric Tkaczyk , Kenneth Wilbur Lay , Richard Andrew Ranze
发明人： Robert Adolph Ackermann , Kenneth Gordon Herd , Evangelos Trifon Laskaris , John Eric Tkaczyk , Kenneth Wilbur Lay , Richard Andrew Ranze
CPC分类号： H01F6/065 , F25D19/006
摘要： A superconductive lead assembly for a superconductive device (e.g., magnet) cooled by a cryocooler coldhead having first and second stages. A first ceramic superconductive lead has a first end flexibly, dielectrically, and thermally connected to the first stage and a second end flexibly, dielectrically, and thermally connected to the second stage. A first glass-reinforced-epoxy lead overwrap is in general surrounding contact with and attached to the first superconductive lead. The first lead overwrap has a coefficient of thermal expansion generally equal to that of the first superconductive lead. The lead overwrap protects the lead from moisture damage and from breakage during handling. For added protection against shock and vibration while in the device, the lead assembly is surrounded by a (e.g., polystyrene foam) jacket surrounded by a helically-wound metallic wire surrounded by a glass-reinforced-epoxy jacket overwrap surrounded by a rigid support tube.
摘要翻译： 一种用于超导装置（例如，磁体）的超导引线组件，其由具有第一和第二级的低温冷却器冷头冷却。 第一陶瓷超导引线具有柔性，介电和热连接到第一级的第一端，以及柔性地，介电地且热连接到第二级的第二端。 第一个玻璃增强环氧铅外包装通常围绕与第一超导导线接触并连接到第一超导导线。 第一引线外包装的热膨胀系数通常等于第一超导导线的热膨胀系数。 铅包裹保护铅免受水分损坏和处理中的破损。 为了在装置中增加保护以防止冲击和振动，导线组件被包围有螺旋缠绕的金属线围绕的（例如，聚苯乙烯泡沫）护套围绕，该金属线被由刚性支撑管包围的玻璃增强环氧护套外包裹围绕 。
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公开(公告)号：US5646097A
公开(公告)日：1997-07-08
申请号：US573602
申请日：1995-12-15
申请人： John Eric Tkaczyk , Kenneth Wilbur Lay , Qing He
发明人： John Eric Tkaczyk , Kenneth Wilbur Lay , Qing He
CPC分类号： C04B35/4512 , H01L39/2422 , Y10S505/785
摘要： A method is disclosed for fabricating a polycrystalline thallium-containing superconductor having high critical current at elevated temperatures and in the presence of a magnetic field. A powder precursor containing compounds other than thallium is compressed on a substrate. Thallium is incorporated in the densified powder precursor at a high temperature in the presence of a partial pressure of a thallium-containing vapor.
摘要翻译： 公开了一种用于制造在升高的温度和存在磁场的情况下具有高临界电流的多晶<223>铊超导体的方法。 含有除铊之外的化合物的粉末前体在基材上被压缩。 在存在分散铊的蒸汽的情况下，将铊在高温下并入致密的粉末前体中。
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公开(公告)号：US20110243413A1
公开(公告)日：2011-10-06
申请号：US12750050
申请日：2010-03-30
申请人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
发明人： John Eric Tkaczyk , David Allen Langan , Samit Kumar Basu , Xiaoye Wu , Bruno Kristiaan Bernard De Man , Jeffrey Seymour Gordon
CPC分类号： A61B6/4035 , A61B6/032 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/488 , A61B6/542
摘要： A technique for acquiring desired image data in an imaging system comprising at least one radiation source and a detector is described. Initially, preliminary image data corresponding to an object may be acquired. Further, at least one parameter associated with the radiation source and corresponding to a particular view angle of the radiation source may be determined based on the preliminary image data and a priori information. Similarly, at least one parameter associated with the detector and corresponding to the particular view angle may be determined based on a priori information and the preliminary image data. Efficient operating modes of the radiation source and the detector corresponding to the particular view angle may be selected based on the determined parameters to achieve a desired system performance. Subsequently, the final image data may be acquired using the selected operating modes of the radiation source and the detector.
摘要翻译： 描述了在包括至少一个辐射源和检测器的成像系统中获取所需图像数据的技术。 首先，可以获取与对象相对应的初步图像数据。 此外，可以基于初步图像数据和先验信息来确定与辐射源相关联并且对应于辐射源的特定视角的至少一个参数。 类似地，可以基于先验信息和初步图像数据来确定与检测器相关联并且对应于特定视角的至少一个参数。 可以基于确定的参数来选择对应于特定视角的辐射源和检测器的有效操作模式以实现期望的系统性能。 随后，可以使用所选择的辐射源和检测器的操作模式来获取最终图像数据。
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4.发明授权公开(公告)号：US07916836B2
公开(公告)日：2011-03-29
申请号：US11861826
申请日：2007-09-26
申请人： John Eric Tkaczyk , James Wilson Rose , Wen Li , Jonathan D. Short , Yanfeng Du
发明人： John Eric Tkaczyk , James Wilson Rose , Wen Li , Jonathan D. Short , Yanfeng Du
IPC分类号： H05G1/64 , H01L27/146
摘要： A CT detector includes a direct conversion material configured to generate electrical charge upon reception of x-rays, a plurality of metallized anodes configured to collect electrical charges generated in the direct conversion material, at least one readout device, and a redistribution layer having a plurality of electrical pathways configured to route the electrical charges from the plurality of metallized anodes to the at least one readout device. A plurality of switches is coupled to the plurality of electrical pathways between the plurality of metallized anodes and the at least one readout device, wherein each of the plurality of switches includes an input line electrically coupled to one of the plurality of metallized anodes, a first output node electrically coupled to the at least one readout device, and a second output node electrically coupled to at least one other switch of the plurality of switches.
摘要翻译： CT检测器包括被配置为在接收X射线时产生电荷的直接转换材料，被配置为收集在直接转换材料中产生的电荷的多个金属化阳极，至少一个读出装置和具有多个 电路被配置为将电荷从多个金属化阳极路由到至少一个读出装置。 多个开关耦合到多个金属化阳极与至少一个读出装置之间的多个电路径，其中多个开关中的每一个包括电耦合到多个金属化阳极之一的输入线，第一 电耦合到所述至少一个读出装置的第二输出节点，以及电耦合到所述多个开关中的至少一个其他开关的第二输出节点。
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公开(公告)号：US07826587B1
公开(公告)日：2010-11-02
申请号：US12558248
申请日：2009-09-11
申请人： David Allen Langan , John Eric Tkaczyk , James Walter LeBlanc , Colin R. Wilson , Xiaoye Wu , Dan Xu , Thomas Matthew Benson , Jed Douglas Pack
发明人： David Allen Langan , John Eric Tkaczyk , James Walter LeBlanc , Colin R. Wilson , Xiaoye Wu , Dan Xu , Thomas Matthew Benson , Jed Douglas Pack
IPC分类号： H05G1/60
摘要： A CT system includes a gantry, an x-ray source, a generator configured to energize the x-ray source to a first kVp and to a second kVp, a detector, and a controller. The controller is configured energize the x-ray source to the first kVp for a first time period, subsequently energize the x-ray source to the second kVp for a second time period, integrate data for a first integration period that includes a portion of a steady-state period of the x-ray source at the first kVp, integrate data for a second integration period that includes a portion of a steady-state period of the x-ray source at the second kVp, compare a signal-to-noise ratio (SNR) during the first integration period (SNRH) and the second integration period (SNRL), adjust an operating parameter of the CT system to optimize an SNRH with SNRL, and generate an image using the integrated data.
摘要翻译： CT系统包括台架，x射线源，被配置为将x射线源激发到第一kVp的发生器和到第二kVp的检测器和控制器的发生器。 控制器被配置为在第一时间段内将x射线源激励到第一kVp，随后将x射线源激励到第二kVp第二时间段，将包含第一时间段的第一积分周期的数据整合 在第一kVp处的x射线源的稳态周期，将包括X射线源的稳态周期的一部分的第二积分周期的数据集成在第二kVp处，比较信号与噪声 在第一积分周期（SNRH）和第二积分周期（SNRL）期间的比率（SNR），调整CT系统的运行参数以利用SNRL优化SNRH，并使用积分数据生成图像。
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公开(公告)号：US07606346B2
公开(公告)日：2009-10-20
申请号：US11619990
申请日：2007-01-04
CPC分类号： A61B6/032 , A61B6/4291 , A61B6/482
摘要： A detector module for a CT imaging system is provided. The detector module includes a sensor element to convert x-rays to electrical signals. The sensor element is coupled to a data acquisition system (DAS) via an interconnect system, the DAS comprised of an electronic substrate and an integrated circuit. The interconnect system couples the sensor element, electronic substrate, and integrated circuit by way of a contact pad interconnect together with a wire bond interconnect or an additional contact pad interconnect.
摘要翻译： 提供了用于CT成像系统的检测器模块。 检测器模块包括用于将x射线转换成电信号的传感器元件。 传感器元件经由互连系统耦合到数据采集系统（DAS），DAS由电子基板和集成电路组成。 互连系统通过接触焊盘互连与引线接合互连或附加接触焊盘互连将传感器元件，电子基板和集成电路耦合。
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7.发明申请METHOD AND SYSTEM OF ENERGY INTEGRATING AND PHOTON COUNTING USING LAYERED PHOTON COUNTING DETECTOR 失效使用层状光子计数检测器的能量积分和光子计数的方法和系统公开(公告)号：US20090129538A1
公开(公告)日：2009-05-21
申请号：US11941175
申请日：2007-11-16
申请人： John Eric Tkaczyk , Jonathan D. Short , Yanfeng Du , Wen Li , Xiaoye Wu
发明人： John Eric Tkaczyk , Jonathan D. Short , Yanfeng Du , Wen Li , Xiaoye Wu
摘要： A diagnostic imaging system includes an x-ray source that emits a beam of x-ray energy toward an object to be imaged and an energy discriminating (ED) detector that receives the x-ray energy emitted by the x-ray energy source. The ED detector includes a first layer having a first thickness, wherein the first layer comprises a semiconductor configurable to operate in at least an integrating mode and a second layer having a second thickness greater than the first thickness, and configured to receive x-rays that pass through the first layer. The system further includes a data acquisition system (DAS) operably connected to the ED detector and a computer that is operably connected to the DAS. The computer is programmed to identify saturated data in the second layer and substitute the saturated data with non-saturated data from a corresponding pixel in the first layer.
摘要翻译： 诊断成像系统包括向待成像对象发射X射线能量束的x射线源和接收由x射线能量源发射的x射线能量的能量鉴别（ED）检测器。 ED检测器包括具有第一厚度的第一层，其中第一层包括可配置成至少以积分模式操作的半导体和具有大于第一厚度的第二厚度的第二层，并且被配置为接收x射线， 通过第一层。 该系统还包括可操作地连接到ED检测器的数据采集系统（DAS）和可操作地连接到DAS的计算机。 计算机被编程为识别第二层中的饱和数据，并用来自第一层中的对应像素的非饱和数据替换饱和数据。
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公开(公告)号：US07388534B2
公开(公告)日：2008-06-17
申请号：US11458713
申请日：2006-07-20
申请人： Oliver Richard Astley , John Eric Tkaczyk , Naresh Kesavan Rao , James Walter LeBlanc , Wen Li , Yanfeng Du
发明人： Oliver Richard Astley , John Eric Tkaczyk , Naresh Kesavan Rao , James Walter LeBlanc , Wen Li , Yanfeng Du
IPC分类号： H03M1/12
CPC分类号： G01T1/17
摘要： An adaptive data acquisition circuit (26) includes an amplifier (14) for amplifying electrical pulses generated by a detector (12) responsive to energy incident at the detector. The adaptive data acquisition circuit also includes a counting circuit (28) for counting amplified electrical pulses generated by the amplifier. In addition, the adaptive data acquisition circuit includes a digital logic circuit (30) for determining a pulse parameter indicative of a pulse rate and an amount of energy present in the amplified electrical pulses and for generating a control signal (34) responsive to the pulse parameter for controlling an operating parameter of the data acquisition circuit.
摘要翻译： 自适应数据采集电路（26）包括放大器（14），用于响应于在检测器处入射的能量放大由检测器（12）产生的电脉冲。 自适应数据采集电路还包括用于对由放大器产生的放大电脉冲进行计数的计数电路（28）。 另外，自适应数据采集电路包括数字逻辑电路（30），用于确定指示放大的电脉冲中存在的脉冲速率和能量的脉冲参数，并产生响应脉冲的控制信号（34） 用于控制数据采集电路的工作参数的参数。
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公开(公告)号：US07289336B2
公开(公告)日：2007-10-30
申请号：US10975952
申请日：2004-10-28
申请人： William Edward Burdick, Jr. , James Wilson Rose , John Eric Tkaczyk , Oded Meirav , Jerome Stephen Arenson , David Michael Hoffman
发明人： William Edward Burdick, Jr. , James Wilson Rose , John Eric Tkaczyk , Oded Meirav , Jerome Stephen Arenson , David Michael Hoffman
IPC分类号： H05K1/11
CPC分类号： H05K1/147 , H05K2201/10151
摘要： An interconnect structure for use in an electronic device, wherein the interconnect structure comprises a first substrate comprising a flexible material, wherein the first substrate comprises a front side and a back side, and wherein the first substrate is configured to receive a sensor on the front side; and a second substrate coupled to the back side of the first substrate and comprising a rigid material. A detector module for use in an imaging system comprises the aforementioned interconnect structure.
摘要翻译： 一种用于电子设备的互连结构，其中所述互连结构包括包括柔性材料的第一基底，其中所述第一基底包括前侧和后侧，并且其中所述第一基底构造成在前面接收传感器 侧; 以及耦合到所述第一基板的背面并且包括刚性材料的第二基板。 用于成像系统的检测器模块包括上述互连结构。
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公开(公告)号：US07263167B2
公开(公告)日：2007-08-28
申请号：US11239962
申请日：2005-09-30
IPC分类号： H05G1/26
CPC分类号： A61B6/032 , A61B6/4241 , A61B6/585 , G01T1/171
摘要： A method of scanning a subject to be imaged is presented. The method includes acquiring projection data from a first region of a pixel, where the first region has a first area. Additionally, the method includes acquiring projection data from a second region of the pixel, where the second region has a second area. The method also includes combining projection data from the first and second regions to obtain composite projection data for the pixel. Computer-readable medium and systems that afford functionality of the type defined by this method are also contemplated in conjunction with the present technique.
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