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    Method to measure hydrogen-bearing constituent in a material using neutron spectroscopy
    22.
    发明授权
    Method to measure hydrogen-bearing constituent in a material using neutron spectroscopy 失效
    使用中子光谱测量材料中含氢成分的方法

    公开(公告)号：US06707047B2

    公开(公告)日：2004-03-16

    申请号：US10417695

    申请日：2003-04-17

    申请人： Richard A. Craig ,  Mary Bliss

    发明人： Richard A. Craig ,  Mary Bliss

    IPC分类号： G01N2309

    CPC分类号： G01N23/005

    摘要： A non-destructive method for quantifying the hydrogen content or a hydrogen-bearing constituent in a material is based on the principle of moderating neutron spectroscopy. This technique is particularly suited for analyzing materials containing the high scattering/capture cross-section element of hydrogen. The method involves exposing a neutron moderator to a beam of radiation comprising neutrons and measuring thermal neutron intensities at a plurality of locations in the moderator. These measured intensities reflect the energy distribution of the beam of radiation incident upon the moderator. Thus, by measuring these intensities with the material present, and comparing these intensities to a model, to those of a composition standard(s), or combinations thereof, the hydrogen content of the material is quantified. Furthermore, the hydrogen-bearing constituent of the material is quantified by knowing or estimating the chemical or molecular structure of the material.

    摘要翻译： 用于量化材料中氢含量或含氢成分的非破坏性方法是基于调节中子谱的原理。 该技术特别适用于分析含有氢的高散射/捕获截面元素的材料。 该方法包括将中子慢化剂暴露于包含中子的辐射束并测量调节剂中多个位置处的热中子强度。 这些测量的强度反映入射到调节剂上的辐射束的能量分布。 因此，通过用存在的材料测量这些强度，并将这些强度与模型比较，与成分标准或其组合进行比较，量化该材料的氢含量。 此外，材料的含氢组分通过了解或估计材料的化学或分子结构来量化。