CT-scanning WALDO-cores In the weekend of 9-10/03, a total of 24 cores were scanned with the CT-scanner of the UZ Ghent hospital. Here are some pictures of the PhD students at work and an example of the incoming CT data. Positioning of the core into the CT-scanner. CT-scanner of UZ Gent, while scanning the core. The two PhD students at work in the CT control room. Incoming data (CT-slice) of a core from the North Axial Channel, showing granules in a clay matrix.