Resonant scattering of gamma rays as selective means for determining an element of interest
    7.
    发明授权
    Resonant scattering of gamma rays as selective means for determining an element of interest 失效
    玩家的共鸣散射作为确定兴趣单元的选择手段

    公开(公告)号:US3654464A

    公开(公告)日:1972-04-04

    申请号:US3654464D

    申请日:1970-01-22

    IPC分类号: G01V5/10 G01T1/20

    CPC分类号: G01V5/101

    摘要: A radioactive logging method and apparatus for quantitatively determining an element of interest in subsurface formations traversed by a borehole. Earth formations are bombarded with fast neutrons causing the various elements to emit characteristic gamma rays. These gammas strike resonant scatter material which is specially selected to elastically scatter only those gammas derived from the element of interest. The scattered gammas thus obtained are detected with a scintillator and a photomultiplier.

    摘要翻译: 一种放射性测井方法和装置,用于定量地确定钻孔穿过的地下构造中感兴趣的元素。 地球被快中子轰击,导致各种元素发射特征伽马射线。 这些伽马射击特殊选择的共振散射材料,仅弹性散射来自感兴趣元素的那些伽马。 用闪烁体和光电倍增管检测由此得到的散射伽马值。