Live Iterative Ptychography

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-u...

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Published in:arXiv.org 2024-02
Main Authors: Weber, Dieter, Ehrig, Simeon, Schropp, Andreas, Clausen, Alexander, Achilles, Silvio, Hoffmann, Nico, Bussmann, Michael, Dunin-Borkowski, Rafal, Schroer, Christian G
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Data acquisition
Reconstruction
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creator Weber, Dieter
Ehrig, Simeon
Schropp, Andreas
Clausen, Alexander
Achilles, Silvio
Hoffmann, Nico
Bussmann, Michael
Dunin-Borkowski, Rafal
Schroer, Christian G
description 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.
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subjects Data acquisition
Reconstruction
title Live Iterative Ptychography
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