利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

3 条记录 (耗时 0.013 秒)

    Scatter spectra method for x-ray fluorescent analysis with optical components
    1.
    发明授权
    Scatter spectra method for x-ray fluorescent analysis with optical components 有权
    用光学元件进行X射线荧光分析的散射光谱法

    公开(公告)号：US06845147B2

    公开(公告)日：2005-01-18

    申请号：US10464073

    申请日：2003-06-17

    申请人： William T. Elam ,  Joseph A. Nicolosi ,  Robert B. Shen ,  Bruce E. Scruggs

    发明人： William T. Elam ,  Joseph A. Nicolosi ,  Robert B. Shen ,  Bruce E. Scruggs

    IPC分类号： G01D18/00 ,  G01N23/20 ,  G01N23/201 ,  G01N23/223 ,  G01T20060101 ,  G01T1/36 ,  G21K1/02 ,  G21K5/10

    CPC分类号： G01N23/223 ,  G01N2223/076 ,  G21K1/06

    摘要： A method of measuring the transfer function of an X-ray optical component over a wide range of X-ray energies, which includes the steps of: using an X-ray optical component between an X-ray source and a scattering target to obtain a first scatter spectrum; obtaining a second scatter spectrum from the same or a similar target without the X-ray optical component between the X-ray source and the scattering target; and calculating the transfer function by the ratio of the first scatter spectrum to the second scatter spectrum. The method can be used to improve the accuracy of X-ray quantitative methods in an apparatus where an X-ray optical component is used between the X-ray source and the specimen to be investigated by utilizing the method described above.

    摘要翻译： 一种在宽范围的X射线能量上测量X射线光学部件的传递函数的方法，包括以下步骤：在X射线源和散射靶之间使用X射线光学部件，以获得 第一散射光谱;从X射线源和散射目标之间的X射线光学分量获得来自相同或相似目标的第二散射光谱; 并且通过第一散射光谱与第二散射光谱的比率来计算传递函数。 该方法可以用于提高X射线定量方法的精度，其中X射线光学部件通过利用上述方法在X射线源和待研究样本之间使用。

    Cone penetrometer utilizing an X-ray fluorescence metals sensor
    2.
    发明授权
    Cone penetrometer utilizing an X-ray fluorescence metals sensor 有权
    锥形透度计利用X射线荧光金属传感器

    公开(公告)号：US06097785A

    公开(公告)日：2000-08-01

    申请号：US182814

    申请日：1998-10-30

    申请人： William T. Elam

    发明人： William T. Elam

    IPC分类号： G01N23/223

    CPC分类号： G01N23/223 ,  G01N2223/076

    摘要： A cone-tipped penetrometer for in situ analysis of soil or sediment by X-ray fluorescence spectroscopy. Rather than using a radioactive source, a miniature x-ray tube is powered by a filament isolation transformer located inside the penetrometer pipe which has an outside diameter of about 2 inches or less. The x-rays pass out through a special x-ray transmissive window, such as a low metal impurity-containing high strength boron carbide, into the soil or sediment below the surface and the resulting x-rays from the metals in the soil or sediment return through the window to a detector. The signal is transmitted back up to the surface where the x-rays are quantitatively analyzed to determine the concentration of metals in the soil. This real-time in situ x-ray fluorescence spectroscopy of soil or sediment samples permits field analysis of hazardous waste sites and other underground soil and underwater sediments.

    摘要翻译： 用于通过X射线荧光光谱法对土壤或沉积物进行原位分析的锥尖透度计。 微型X射线管不是使用放射源，而是由位于透明管内部的灯丝隔离变压器供电，外部直径约为2英寸或更小。 X射线通过特殊的x射线透射窗口（例如含有低金属杂质的高强度碳化硼）穿过表面的土壤或沉积物，并从土壤或沉积物中的金属产生的X射线 通过窗户返回到检测器。 信号传输回到X射线定量分析的表面，以确定土壤中金属的浓度。 这种土壤或沉积物样本的实时原位X射线荧光光谱可以对危险废物场地和其他地下土壤和水下沉积物进行现场分析。