Nanoporous gold: a hierarchical and multiscale 3D test pattern for characterizing X-ray nano-tomography systems.

ABSTRACT: Full-field transmission X-ray microscopy (TXM) is a well established technique, available at various synchrotron beamlines around the world as well as by laboratory benchtop devices. One of the major TXM challenges, due to its nanometre-scale resolution, is the overall instrument stability during the acquisition of the series of tomographic projections. The ability to correct for vertical and horizontal distortions of each projection image during acquisition is necessary in order to achieve the effective 3D spatial resolution. The effectiveness of such an image alignment is also heavily influenced by the absorption properties and strong contrast of specific features in the scanned sample. Here it is shown that nanoporous gold (NPG) can be used as an ideal 3D test pattern for evaluating and

SUBMITTER: Larsson E 

PROVIDER: S-EPMC6337890 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature