ABSTRACT
Abstract. In this work, we compare multiple-energy and two-energy twin image removal algorithms in atomic-resolution x-ray holography by theoretical simulations with a 27-Fe-atom cubic lattice used as the calculated model. The results show that the former is effective only in inside detector x-ray holography and the latter is effective in both inside detector and source x-ray holography. The spatial resolution of atomic images increases with the increase of incident energies in both algorithms. In the former, the wider the range of incident energies is, the better the effect of removing twin images is. Whereas in the latter, the smaller the difference of two incident energies is, the more effectively twin images are removed. However, the latter is not as effective as the former in eliminating background noises.
