An example of what the Itrax core scanner can do: This is a core from a New Zealand lake and contains material which spans 2000 years. On the left is the high-resolution optical image while the x-ray image is on the right. Dark objects in the x-ray are dense objects. In this core they are stones. This tells us the concentration of all elements heavier than magnesium in the core, in great detail. It can take measurements every 200 microns. Find out more at <a href="http://www.ansto.gov.au/AboutANSTO/MediaCentre/News/ACS090153">ANSTO Itrax</a> and <a href="https://www.sciencedirect.com/science/article/pii/S1040618217311679">here</a>. Image courtesy Craig Woodward/ANSTO.