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X射线荧光全息术是一种新型的显微成像技术 ,它能在原子水平上直接观察到晶体内部的三维结构。然而它所得到的原子像存在明显的孪生像现象。因此 ,采用多重能量的全息记录来消除孪生像。分别以单个和多个铁原子为模型 ,数值模拟了它们在 4π立体角范围内、不同范围的入射能量的情况下记录的全息图。比较由这些全息图重构得到的原子像 ,发现入射能量范围越宽 ,其消除孪生像的效果越好 ,而且随着入射能量的提高 ,其原子像的分辨力也越高
X-ray fluorescence holography is a novel microscopy technique that directly observes the three-dimensional structure of the crystal at the atomic level. However, the resulting atomic image has a clear twin phenomenon. Therefore, using multiple energy holographic recording to eliminate twin images. The single and multiple iron atoms are used as models respectively to numerically simulate their recorded holograms in the range of 4π solid angle and different range of incident energy. Comparing the atomic images reconstructed by these holograms, we found that the wider the incident energy range, the better the effect of eliminating the twin images, and the higher the incident energy is, the higher the resolution of the atomic images