Performance evaluation of Bragg coherent diffraction imaging

Performance evaluation of Bragg coherent diffraction imaging
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布拉格相干衍射成像性能评估

DOI:
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发表时间:
2017
期刊:
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通讯作者:
Yong S. Chu
Yong S. Chu
中科院分区:
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作者:
Hande Öztürk;Xiaojing Huang;Hanfei Yan;Ian K. Robinson;I. C. Noyan;Yong S. Chu

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在本研究中,我们提出了一个数值框架,用于对布拉格相干衍射成像 (Bragg CDI) 实验中的三维 (3D) 衍射数据进行建模,并评估在受控条件下通过重建算法恢复的 3D 复值真实空间图像的质量。该方法用于系统地探索这种基于相位检索的显微镜工具的性能和检测限。数值研究表明,布拉格 CDI 的卓越性能是通过超过 30 的过采样率和超过 6 个数量级的检测动态范围实现的。还研究了观察到的数据装箱过程导致的性能下降。该数值工具可用于优化实验参数,并有可能显着提高布拉格 CDI 方法的通量。
In this study, we present a numerical framework for modeling three-dimensional (3D) diffraction data in Bragg coherent diffraction imaging (Bragg CDI) experiments and evaluating the quality of obtained 3D complex-valued real-space images recovered by reconstruction algorithms under controlled conditions. The approach is used to systematically explore the performance and the detection limit of this phase-retrieval-based microscopy tool. The numerical investigation suggests that the superb performance of Bragg CDI is achieved with an oversampling ratio above 30 and a detection dynamic range above 6 orders. The observed performance degradation subject to the data binning processes is also studied. This numerical tool can be used to optimize experimental parameters and has the potential to significantly improve the throughput of Bragg CDI method.
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发表时间: 2015
期刊: --
影响因子: --
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