X-ray ptychography has revolutionised nanoscale phase contrast imaging at large-scale synchrotron sources in recent years. We present here the first successful demonstration of the technique in a small-scale laboratory setting. We conducted an experiment with a liquid metal-jet X-ray source and a single photon-counting detector with a high spectral resolution. The experiment used a spot size of 5 microns to produce a ptychographic phase image of a Siemens star test pattern with a sub-micron spatial resolution. The result and methodology presented show how high-resolution phase contrast imaging can now be performed at small-scale laboratory sources worldwide.
@article{arxiv.2102.03880,
title = {X-ray Ptychography with a Laboratory Source},
author = {Darren J. Batey and Frederic Van Assche and Sander Vanheule and Matthieu N. Boone and Andrew J. Parnell and Oleksandr O. Mykhaylyk and Christoph Rau and Silvia Cipiccia},
journal= {arXiv preprint arXiv:2102.03880},
year = {2021}
}