Method and apparatus for flexibly binning energy discriminating data
    1.
    发明授权
    Method and apparatus for flexibly binning energy discriminating data 有权
    方法和设备,用于灵活地将能量鉴别数据并入

    公开(公告)号:US07916836B2

    公开(公告)日:2011-03-29

    申请号:US11861826

    申请日:2007-09-26

    IPC分类号: H05G1/64 H01L27/146

    CPC分类号: G01T1/249 A61B6/032 G01T1/24

    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。

    METHOD AND SYSTEM OF ENERGY INTEGRATING AND PHOTON COUNTING USING LAYERED PHOTON COUNTING DETECTOR
    2.
    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

    IPC分类号: A61B6/00 G01T1/20

    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。

    Adaptive data acquisition for an imaging system
    3.
    发明授权
    Adaptive data acquisition for an imaging system 有权
    成像系统的自适应数据采集

    公开(公告)号:US07388534B2

    公开(公告)日:2008-06-17

    申请号:US11458713

    申请日:2006-07-20

    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。

    High DQE photon counting detector using statistical recovery of pile-up events
    4.
    发明授权
    High DQE photon counting detector using statistical recovery of pile-up events 失效
    高DQE光子计数检测器采用统计恢复堆积事件

    公开(公告)号:US07696483B2

    公开(公告)日:2010-04-13

    申请号:US11837328

    申请日:2007-08-10

    IPC分类号: G01T1/24

    CPC分类号: G01T1/171 G01T1/247 G01T1/249

    摘要: A photon-counting detector includes a direct conversion material and a data acquisition system with a first comparator having a first signal level threshold indicative of a noise level of a spectrum of photons, the first comparator configured to output a count when the electrical signal level exceeds the first signal level threshold, and a second comparator having a second signal level threshold indicative of the maximum energy of the spectrum of photons, the second comparator configured to output a count when the electrical signal exceeds the second signal level threshold where a photon count is determined based on the counts from the first and second comparators.

    摘要翻译: 光子计数检测器包括直接转换材料和具有第一比较器的数据采集系统,第一比较器具有指示光子谱的噪声电平的第一信号电平阈值,第一比较器被配置为当电信号电平超过时输出计数 第一信号电平阈值和具有指示光子谱的最大能量的第二信号电平阈值的第二比较器,第二比较器被配置为当电信号超过第二信号电平阈值时输出计数,其中光子计数是 基于来自第一和第二比较器的计数确定。

    Subpixel routing and processing for an imaging system or the like
    5.
    发明授权
    Subpixel routing and processing for an imaging system or the like 有权
    用于成像系统等的子像素路由和处理

    公开(公告)号:US07488945B2

    公开(公告)日:2009-02-10

    申请号:US11291273

    申请日:2005-11-30

    IPC分类号: G01T1/24

    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。

    X-ray detectors with adjustable active area electrode assembly
    6.
    发明申请
    X-ray detectors with adjustable active area electrode assembly 审中-公开
    具有可调节有源区电极组件的X射线探测器

    公开(公告)号:US20070290142A1

    公开(公告)日:2007-12-20

    申请号:US11454532

    申请日:2006-06-16

    IPC分类号: G01T1/24

    CPC分类号: G01T1/241

    摘要: An electrode assembly having an adjustable active area is provided. The electrode assembly is configured to detect photons. The electrode assembly includes a central readout electrode, and one or more bias control portions. The bias control portions are disposed adjacent to the central readout electrode. The active area is altered by controlling voltages of the bias control portions relative to a voltage of the central readout electrode.

    摘要翻译: 提供具有可调节有效面积的电极组件。 电极组件被配置为检测光子。 电极组件包括中央读出电极和一个或多个偏置控制部分。 偏置控制部分邻近中央读出电极设置。 通过控制偏置控制部分相对于中央读出电极的电压的电压来改变有效区域。

    Multi-layer direct conversion computed tomography detector module
    7.
    发明授权
    Multi-layer direct conversion computed tomography detector module 有权
    多层直接计算机断层摄影检测模块

    公开(公告)号:US07212604B2

    公开(公告)日:2007-05-01

    申请号:US11171169

    申请日:2005-06-29

    IPC分类号: H01L25/00

    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.

    摘要翻译: 提出了一种计算机断层扫描检测器模块。 检测器模块包括具有顶侧和底侧的基板。 另外,检测器模块包括多个检测器层,该多个检测器层沿基本上垂直于衬底的方向设置在衬底的顶侧上,其中多个检测器层中的每一个包括被配置为吸收辐射的直接转换材料,并且其中 多个检测器层中的每一个包括第一侧和第二侧。 此外,检测器模块包括多个像素化的阳极触点设置在多个检测器层中的每一个的第一侧上。 此外,检测器模块包括公共阴极接触件设置在多个检测器层中的每一个的第二侧上。

    Method and apparatus to reduce charge sharing in pixellated energy discriminating detectors
    8.
    发明授权
    Method and apparatus to reduce charge sharing in pixellated energy discriminating detectors 有权
    减少像素化能量鉴别检测器中电荷共享的方法和装置

    公开(公告)号:US07486764B2

    公开(公告)日:2009-02-03

    申请号:US11625969

    申请日:2007-01-23

    IPC分类号: H01L27/146 G01N23/00

    CPC分类号: G01T1/249 G01T1/24

    摘要: A CT detector includes a plurality of metallized anodes with each metallized anode separated from another metallized anode by a gap. A direct conversion material is electrically coupled to the plurality of metallized anodes and has a charge sharing region in which an electrical charge generated by an x-ray impinging the direct conversion material is shared between at least two of the plurality of metallized anodes. An x-ray attenuating material is positioned to attenuate x-rays directed toward the charge sharing region.

    摘要翻译: CT检测器包括多个金属化阳极,每个金属化阳极通过间隙从另一个金属化阳极分离。 直接转换材料电耦合到多个金属化阳极,并且具有电荷共享区域,其中由穿过直接转换材料的X射线产生的电荷在多个金属化阳极中的至少两个之间共享。 定位x射线衰减材料以衰减指向电荷共享区域的x射线。

    Method and system of energy integrating and photon counting using layered photon counting detector
    9.
    发明授权
    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:US07613274B2

    公开(公告)日:2009-11-03

    申请号:US11941175

    申请日:2007-11-16

    IPC分类号: G01N23/00

    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。

    METHOD AND APPARATUS FOR FLEXIBLY BINNING ENERGY DISCRIMINATING DATA
    10.
    发明申请
    METHOD AND APPARATUS FOR FLEXIBLY BINNING ENERGY DISCRIMINATING DATA 有权
    用于灵活分析能量分辨数据的方法和装置

    公开(公告)号:US20090080601A1

    公开(公告)日:2009-03-26

    申请号:US11861826

    申请日:2007-09-26

    IPC分类号: A61B6/03 H05G1/58

    CPC分类号: G01T1/249 A61B6/032 G01T1/24

    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。