Graham Davis obtained a PhD in medical electronics in 1984 and shortly thereafter began work on the development of X-ray microtomography (XMT). Designing scanners and software algorithms with accuracies exceeding commercially available systems, he is well recognized in this area of development and has served on the European Standards Committee CEN/TC 138/WG 1/AH 1 Computed Tomography. He is now a Reader in 3D X-ray Imaging, with many international collaborators using his 3D imaging resources.