1. Medical Physics & Clinical Engineering, Nottingham University Hospitals, Nottingham, UK
2. Department of Imaging Physics & Radiation Safety, Northern Medical Physics & Clinical Engineering, Newcastle upon Tyne Hospitals Trust, Newcastle upon Tyne, UK
3. Professional Officer (Radiation Protection), The Society and College of Radiographers, London, UK
4. United Lincolnshire Hospitals NHS Trust,Radiation Protection and Radiology Physics, Lincoln County Hospital, Lincoln, UK
5. Radiation Physics Department, Queen's Centre for Oncology and Haematology, Hull & East Yorkshire, Hospitals NHS Trust, Castle Hill Hospital, Hull, UK
6. Faculty of Science and Engineering, University of Hull, Hull, UK