X- and .gamma.-Ray techniques for determination of the ash content of
coal
    1.
    发明授权
    X- and .gamma.-Ray techniques for determination of the ash content of coal 失效
    用于确定煤灰含量的X射线和γ射线技术

    公开(公告)号:US4566114A

    公开(公告)日:1986-01-21

    申请号:US411403

    申请日:1982-08-25

    IPC分类号: G01N23/12 G01N23/20

    CPC分类号: G01N23/12

    摘要: X- or .gamma.-ray scatter assemblies are used in quantitative determination of the concentration of ash in coke or coal. The assemblies each comprise an X- or .gamma.-ray source, an energy sensitive detector to detect X- or .gamma.-rays resulting from scatter in the coal or coke of X- or .gamma.-rays from the source, and shielding means adapted to reduce the intensity of direct X-rays or .gamma.-rays and to collimate partly the beam of X-rays and or .gamma.-rays to ensure maximized matched volumes for all assemblies and deep penetration in the coal. The assemblies are associated with an electronic analyzer adapted to select all or part of the detected X-ray or .gamma.-ray spectrum, thereby modifying the output of the assemblies. Two or more assemblies are employed in an apparatus and method for analyzing coal or coke.

    摘要翻译: X或γ射线散射组件用于定量测定焦炭或煤中灰分的浓度。 组件各自包括X射线或γ射线源,能量敏感检测器,用于检测由来自源的X射线或γ射线的煤或焦炭中的散射而产生的X射线或γ射线;以及屏蔽装置, 直接X射线或γ射线的强度,并部分准直X射线和γ射线束,以确保所有组件的最大匹配体积和煤中的深度穿透。 组件与适用于选择全部或部分检测到的X射线或γ射线光谱的电子分析仪相关联,由此修改组件的输出。 在用于分析煤或焦炭的装置和方法中采用两个或更多个组件。