The open-source PyNX toolkit [Favre-Nicolin et al (2011) arXiv:1010.2641, Mandula et al (2016)] has been extended to provide tools for coherent X-ray imaging data analysis and simulation. All calculations can be executed on graphical processing units (GPU) to achieve high performance computing speeds. This can be used for Coherent Diffraction Imaging (CDI), Ptychography and wavefront propagation, in the far or near field regime. Moreover, all imaging operations (propagation, projections, algorithm cycles..) can be used in Python as simple mathematical operators, an approach which can be used to easily combine basic algorithms in a tailored chain. Calculations can also be distributed to multiple GPUs, e.g. for large Ptychography datasets. Command-line scripts are also available for on-line CDI and Ptychography analysis, either from raw beamline datasets or using the Coherent X-ray Imaging data format [Maia (2012)].
@article{arxiv.2008.11511,
title = {PyNX: high performance computing toolkit for coherent X-ray imaging based on operators},
author = {Vincent Favre-Nicolin and Gaétan Girard and Steven Leake and Jérôme Carnis and Yuriy Chushkin and Jérôme Kieffer and Pierre Paléo and Marie-Ingrid Richard},
journal= {arXiv preprint arXiv:2008.11511},
year = {2020}
}
Comments
23 pages, 11 figures. To be published in Journal of Applied Crystallography