摘要：Graphical abstractDisplay OmittedHighlights•High-resolution microtomography of gold sample with artificially induced pore space.•Comparison of the individual neutron radiograph with radiograph based on a common commercially-available tabletop X-ray source.•Demonstration of potential for high resolution non-destructive quantification of porosity in other high atomic number materials (such as, precious metal alloys).AbstractPilot attempt of the neutron microtomography of voids in gold carried out using the Neutron Microscope instrument is presented in the paper. The paper demonstrates that neutron microtomography provides viable alternative to X-ray imaging for the assessment of porosity in high atomic number materials. The model sample based on gold with artificially induced void system reveals segmented porosity with 5.4 micrometres voxel size and the spatial resolution close to 10 micrometres.
