Professor David Cohen is a Distinguished Research Scientist at the Centre for Accelerator Science. David has a BSc(Hons), MSc and PhD in Physics. He joined AINSE in 1976 and ANSTO in 1989 and has more than 43 years of research experience in nuclear and atomic physics, materials science, archaeometry, biology, and environmental studies. He is a Fellow of the Australian Institute of Physics and the Clean Air Society of Australia and New Zealand and an honorary professor in the Faculty of Engineering at the University of Wollongong. In November 2009, he was elected a Fellow of the Australian Academy of Technological Sciences and Engineering (FTSE). He has over 250 refereed journals and 490 conference and report publications and is recognised nationally and internationally as an expert in accelerator-based ion beam analysis.