论文标题
ptychographic扫描的对象初始化，重叠减少
Object Initialization For Ptychographic Scans With Reduced Overlap
论文作者
论文摘要
X射线Ptychography利用重叠的照明来重建对象的相位，并使用空间分辨率小得多。通常，选择照明重叠为50％至60％，以确保在合理的扫描时间和/或剂量下进行高质量的重建。在这里，我们在实验上证明了带有物体而不是平面初始化的ptychographic迭代可以大大减少重叠，而重建质量的损失仅适度。这种方法可能对剂量敏感实验和快速反馈概述扫描有益。
X-ray ptychography utilizes overlapping illuminations to reconstruct the object's phase and absorption signal with spatial resolutions much smaller than the focus size. Usually, the illumination overlap is chosen to be between 50% and 60% in order to ensure high quality reconstructions at reasonable scan times and/or doses. Here, we experimentally demonstrate that ptychographic iteration with object instead of flat initialization allows for a significant reduction of the overlap with only a modest loss in reconstruction quality. This approach could prove beneficial for dose sensitive experiments and for rapid feedback overview scans.
