论文标题
Angular X射线互相关分析应用于单个晶体的3D相互空间中的散射数据
Angular X-ray Cross-Correlation Analysis Applied to the Scattering Data in 3D Reciprocal Space from a Single Crystal
论文作者
论文摘要
我们建议将角X射线互相关分析(AXCCA)应用于单个晶体样品中三维(3D)对等空间中测得的散射强度分布。与AXCCA的常规应用相反,当需要从不同随机取向样品收集的许多二维(2D)衍射模式平均时,提出的方法可以深入了解单个样品的结构。这在不太可能具有相同结构的缺陷样品的研究中特别有用。在这里,我们演示了一个定性结构在模拟和实验测量的3D散射强度分布上的定性结构测定的示例。
We propose an application of the Angular X-ray Cross-Correlation Analysis (AXCCA) to the scattered intensity distribution measured in three-dimensional (3D) reciprocal space from a single crystalline sample. Contrary to the conventional application of AXCCA, when averaging over many two-dimensional (2D) diffraction patterns collected from different randomly oriented samples is required, the proposed approach gives an insight into the structure of a single specimen. This is particularly useful in studies of defect-reach samples that are unlikely to have the same structure. Here, we demonstrate an example of a qualitative structure determination of a colloidal crystal on the simulated as well as experimentally measured 3D scattered intensity distributions.