搜索

x
中国物理学会期刊

F离子弹性反冲法分析固体中H的深度分布

CSTR: 32037.14.aps.37.71

DETERMINATION OF HYDROGEN DEPTH PROFILE IN SOLIDS BY DETECTION OF RECOILED PROTON WITH MeV F IONS

CSTR: 32037.14.aps.37.71
PDF
导出引用
  • 本文报道7—8MeVl4+离子弹性反冲法(ERD)分析固体中H的深度分布。实验和理论分析表明,近表面处的深度分辨率为200—300?。探讨了散射几何条件和入射能量等的最佳化问题。比较了同一样品用F离子ERD法与6.4MeV1H(19F,αγ)16O核反应法(NRA)的测试结果。表明F离子ERD法是快速(5—10min)、低辐照(5—10μC)、深度分辨和灵敏度较好的分析固体中H的深度分布的一种方法。

     

    Depth profiling of hydrogen in solids has been performed by Elastic Recoil Detection (ERD) with multicharged F ions at a 1.7 MV Tandem accelerator. Both experimental and theoretical analysis show the depth resolution of about 200-300 ? in the near-surface regions of solids. The optimization of the experimental conditions such as scattering geometry and incident beam energy are discussed. The comparison of ERD with multicharged F ions and 1H(19F,αγ)16O resonance reaction at 6.4 MeV for the same samples demonstrated that hydrogen profiling by ERD with F ions is a fast and economic method with low radiation damage and perfect depth resolution.

     

    目录

    /

    返回文章
    返回