MARK B. H. BREESE, PhD, is a Research Fellow in Physics at Oxford University and a member of the Nuclear Microprobe Group, where he works on the design and construction of a new generation of nuclear microprobes. A former Australian Research Fellow, he has worked with the Melbourne Nuclear Microprobe Group on further refining and understanding microprobe optics and analytical techniques.

DAVID N. JAMIESON, PhD, is Associate Professor of Physics at the University of Melbourne, where he is also Director of the Microanalytical Research Centre. Dr. Jamieson has worked as a postdoctoral research fellow in the Division of Applied Physics and Electrical Engineering at Caltech and as a Departmental Research Associate at Oxford University's SPM Unit in the Nuclear Physics Laboratory.

PHILIP J. C. KING, PhD, is a Research Fellow in Physics at Oxford University, where he is working in the SPM Unit in the Nuclear Physics Laboratory. His research interests have focused on exploring the use of nuclear microprobes to produce images of crystal defects.