Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy

利用内壳层电子能量损失谱通过散射增强微区分析进行原子定位。利用电子能量色散X射线（EDX）测量，原子定位增强微区分析（ALCHEMI）技术已被许多作者广泛探索。这种方法的扩展到电子能量损失谱（EELS）是困难的，由于在这样的实验条件下所需的内壳层电离的更复杂的配方。诸如电离相互作用的“离域”和散射电子通道的重要性等问题需要得到解决，以便这种方法可以普遍适用。这是本项目的目的是扩展这种常用的方法，以EELS的专题领域。

Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy. The technique of Atom Location by Channelling Enhanced Microanalysis (ALCHEMI) has been explored extensively using Electron Energy Dispersive X-ray (EDX) measurements by many authors. The extension of this method to Electron Energy Loss Spectroscopy (EELS) is difficult due to the more complicated formulation of inner-shell ionization required under such experimental conditions. Issues such as the "delocalization" of the ionization interaction and the significance of channelling of the scattered electron need to be addressed so that this method may be generally applicable. It is the aim of this project to extend this commonly used method to the topical field of EELS.