Live Iterative Ptychography
Live Iterative Ptychography
Weber, D.; Ehrig, S.; Schropp, A.; Clausen, A.; Achilles, S.; Hoffmann, N.; Bussmann, M.; Dunin-Borkowski, R.; Schroer, C. G.
We demonstrate live-updating ptychographic reconstruction with ePIE, an iterative ptychography method, during ongoing data acquisition. The reconstruction starts with a small subset of the total data, and as the acquisition proceeds the data used for reconstruction is extended. This creates a live-updating view of object and illumination that allows monitoring the ongoing experiment and adjusting parameters with quick turn-around. This is particularly advantageous for long-running acquisitions. We show that such a gradual reconstruction yields interpretable results already with a small subset of the data. We show simulated live processing with various scan patterns, parallelized reconstruction, and real-world live processing at the hard X-ray ptychographic nanoanalytical microscope PtyNAMi at the PETRA III beamline.
Keywords: ptychography; X-ray microscopy
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Microscopy and Microanalysis 30(2024), 103-117
Online First (2024) DOI: 10.1093/mam/ozae004
Permalink: https://www.hzdr.de/publications/Publ-38877