Colin Martin has worked as a hospital-based Medical Physicist in Radiation Protection and Diagnostic Radiology in Scotland for 30 years. He is now an honorary senior lecturer with the University of Glasgow, UK. His research has involved radiation protection in medicine, optimisation of radiation protection in diagnostic radiology and non-ionising radiations. Dr Martin is a member of Committee 3 of ICRP (Protection in Medicine) and of IAEA committees, and has been involved in medical exposure projects as an expert for the IAEA. He is a member of Editorial Boards for the Journal of Radiological Protection and Radiation Protection Dosimetry.
David Sutton has worked as a hospital-based Medical Physicist for over 30 years. His work and research has involved the physics of nuclear medicine, radiation protection in medicine, and the optimisation of radiation protection in diagnostic radiology. Dr Sutton is chair of the UK radiation protection accreditation body RPA2000, has been involved in several UK medical physics initiatives and has acted as an expert for the IAEA. He is an associate editor of the British Journal of Radiology.