...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Science and Technology of Advanced Materials >Development of a new holographic method with resonant X-ray scattering
【24h】

Development of a new holographic method with resonant X-ray scattering

机译：共振X射线散射的全息新方法的开发

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Complex X-ray holography (CXH) using resonant scattering is proposed as a new atomic resolution holography method. CXH provides us a solution for the twin-image problem as well as elemental identification in real space. Accurate differences among intensities recorded at several X-ray energies around an absorption edge must be experimentally obtained in the CXH method. Taking into account that the holographic signal is of the order of 0.1% of its background, we find it difficult to carry out using ordinary technique for hologram measurement. Thus, in order to measure holograms with a very good S/N ratio, a sample was cooled about 100 K and fluorescent X-rays were focused on a detector with a cylindrical graphite analyzer in the X-ray fluorescence holography apparatus at SPring-8. Ga fluorescent holograms of GaAs were recorded at energies near the As K absorption edge. A change of holographic oscillations due to the resonant scattering, which is expected from the computer simulation, was firstly observed.
机译：提出了一种利用共振散射的复杂X射线全息术（CXH）作为一种新的原子分辨率全息术。 CXH为我们提供了双图像问题以及实际空间中元素识别的解决方案。必须在CXH方法中通过实验获得在吸收边缘附近的几种X射线能量下记录的强度之间的准确差异。考虑到全息信号约为其背景的0.1％，我们发现很难使用普通技术进行全息图测量。因此，为了以良好的信噪比测量全息图，将样品冷却至约100 K，并将荧光X射线聚焦在SPring-8的X射线荧光全息设备中的带有圆柱形石墨分析仪的检测器上。在As K吸收边缘附近的能量处记录了GaAs的Ga荧光全息图。首先观察到由于共振散射引起的全息振荡的变化，这是计算机模拟所预期的。

著录项

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