...
首页> 外文期刊>Journal of Applied Physics >Dynamical theory: Application to spin-echo resolved grazing incidence scattering from periodic structures
【24h】

Dynamical theory: Application to spin-echo resolved grazing incidence scattering from periodic structures

机译:动力学理论:自旋回波解决的周期性结构入射掠射散射

获取原文
获取原文并翻译 | 示例
           

摘要

Neutron spin-echo resolved grazing incidence scattering (SERGIS) measurements performed on a silicon diffraction grating with a rectangular profile were shown in our previous publications to be well explained by dynamical theory calculations. The theory is based on a Bloch wave expansion of the neutron wavefunction in the periodic layer of the grating, which includes all multiple scattering within that layer. Calculations show that the spin-echo polarization should be very sensitive to the scattering geometry (i.e., incident angle, sample alignment and beam divergence) and the sample specifications (i.e., grating period, groove depth). To test these predictions, SERGIS measurements have been performed on a set of gratings with different specifications in various scattering geometries. In all cases, simulations based on the dynamical theory, with all the parameters set to their known values, are in good agreement with the collected data.
机译:在我们以前的出版物中显示了在具有矩形轮廓的硅衍射光栅上进行的中子自旋回波分辨掠入射散射(SERGIS)测量可以通过动力学理论计算得到很好的解释。该理论基于中子波函数在光栅周期层中的布洛赫波展开,其中包括该层中的所有多重散射。计算表明,自旋回波偏振应对散射几何形状(即入射角,样品对准和光束发散)和样品规格(即光栅周期,凹槽深度)非常敏感。为了测试这些预测,已经在各种散射几何形状的不同规格的一组光栅上进行了SERGIS测量。在所有情况下,基于动力学理论的仿真(所有参数均设置为已知值)与收集的数据非常吻合。

著录项

  • 来源
    《Journal of Applied Physics》 |2011年第10期|p.102201.1-102201.6|共6页
  • 作者单位

    Indiana University Center for Exploration of Energy and Matter, Bloomington, Indiana 47408, USA,Physics Department at Indiana University, Bloomington, Indiana 47405, USA;

    Physics Department at Indiana University, Bloomington, Indiana 47405, USA;

    Department of Radiation, Delft University of Technology, Mekelweg 15, 2629 JB Delft, Netherlands;

    Department of Radiation, Delft University of Technology, Mekelweg 15, 2629 JB Delft, Netherlands;

    Rutherford Appleton Laboratory, Chilton, Oxfordshire 0X11 OQX, United Kingdom;

    Department of Radiation, Delft University of Technology, Mekelweg 15, 2629 JB Delft, Netherlands,Rutherford Appleton Laboratory, Chilton, Oxfordshire 0X11 OQX, United Kingdom;

    Indiana University Center for Exploration of Energy and Matter, Bloomington, Indiana 47408, USA,Physics Department at Indiana University, Bloomington, Indiana 47405, USA,Neutron Science Directorate, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号