Exploring Frontiers of 4D X-ray Tomography

In the 4D world of three-dimensional (3D) space plus time that we live in, there is a vast blue ocean in the spatio-temporal domain of micrometers and milliseconds that has never been accessed even with the most advanced measurement technology, and it is expected to be full of various non-equilibrium phenomena. In this paper, we review recent advances in synchrotron hard X-ray tomography we have made that can be used to explore the 4D frontier