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    • 6. 发明申请
    • Apparatus and Method for Fluid Phase Fraction Determination Using R-Rays Optimized for Wet Gas
    • 使用R-Rays优化湿气的流体相分数测定装置和方法
    • US20090161823A1
    • 2009-06-25
    • US11959917
    • 2007-12-19
    • Joel L. GrovesEtienne ValleePeter Wraight
    • Joel L. GrovesEtienne ValleePeter Wraight
    • G01N23/206
    • G01N23/12G01N33/2847
    • An apparatus for determining fractional amounts of each phase of a multiple phase fluid includes an x-ray generator includes a sample chamber is configured to admit therein a sample of fluid for analysis. The chamber is disposed in a radiation path output from the generator. A filter is disposed in the radiation path between the output of the generator and the radiation input of the sample chamber. A first radiation detector is positioned in a radiation path from the sample chamber after radiation has passed through the sample chamber. A thickness and a material of the filter are selected to optimize resolution of radiation detected by the first detector to changes in volume fraction of oil and water in the fluid sample when a gas fraction thereof is between about 90 to 100 percent.
    • 一种用于确定多相流体每相的分数量的装置包括:x射线发生器,其包括样品室,其被配置成允许用于分析的流体样品。 腔室设置在从发生器输出的辐射路径中。 过滤器设置在发生器的输出和样品室的辐射输入之间的辐射路径中。 辐射已经通过样品室之后,第一辐射探测器位于从样品室的辐射路径中。 选择过滤器的厚度和材料以优化当第一检测器的气体分数在约90至100%之间时,流体样品中的油和水的体积分数发生变化的第一检测器检测到的辐射的分辨率。
    • 10. 发明申请
    • GENETIC TUNING OF COEFFICIENTS IN A THREAT DETECTION SYSTEM
    • 威胁检测系统中系数的遗传调谐
    • US20080298544A1
    • 2008-12-04
    • US12129439
    • 2008-05-29
    • Peter Dugan
    • Peter Dugan
    • G01N23/206
    • G01N23/06G06K9/6263
    • A system and method are presented for determining an optimized set of estimation coefficients for use in the gray scale conversion of measured intensity ratios derived from radiographic images of an object. Radiographic images for known materials may be obtained using different source energy levels. Measured training ratios for each known material may be determined intensity values derived from pairs of radiographic images. Standard attenuation data for each known material may also provided. A genetic algorithm may be used to obtain an optimized set of estimation coefficients for the known materials using initial candidate sets of estimation coefficients, the measured training ratios, and the standard attenuation data. The optimized set of estimation coefficients may be used in the gray scale conversion of measured ratios derived from radiographic images of unknown materials for the determination of the atomic number of the unknown materials.
    • 提出了一种系统和方法,用于确定用于从对象的放射照相图像导出的测量的强度比的灰度转换中使用的优化的估计系数集合。 可以使用不同的源能级获得已知材料的射线照相图像。 每个已知材料的测量训练比可以是由放射照相图像对得出的强度值。 也可以提供每个已知材料的标准衰减数据。 遗传算法可以用于使用估计系数的初始候选组,测量的训练比和标准衰减数据来获得已知材料的优化的估计系数集合。 估计系数的优化集合可用于从未知材料的放射照相图像得到的测量比例的灰度转换中,用于确定未知材料的原子数。