Efficient concentration of high-energy x-rays for diffraction-limited imaging resolution

Published on 2017-05-20T00:00:00Z (GMT) by
Newly available x-ray nanobeams in synchrotron radiation facilities open new research avenues in the nanosciences. However, a significant challenge is to efficiently concentrate, particularly for high-energy x-rays, a large photon flux into a very small focal spot. Here, we demonstrate for the first time, to the best of our knowledge, a sub-13-nm (FWHM) diffraction-limited x-ray focus size with 6 billion photons per second formed using elliptically figured mirrors operating at 33.6 keV. This is the smallest and brightest focus spot in this high-energy range. We report the results of an x-ray ptychography experiment to characterize the wavefront at the focus position. This offers new opportunities in multidisciplinary fields for x-ray microscopy techniques in which the focal spot size limits the resolution.

Cite this collection

Cesar da Silva, Julio; Pacureanu, Alexandra; Yang, Yang; Bohic, Sylvain; Morawe, Christian; Barrett, Raymond; Cloetens, Peter (2017): Efficient concentration of high-energy x-rays for diffraction-limited imaging resolution. figshare.

https://doi.org/10.6084/m9.figshare.c.3767357.v1

Retrieved: 23 28, May 22, 2017 (GMT)