1. University of Surrey Ion Beam Centre, Guildford, Surrey GU2 7XH, U.K.
2. Department of Chemistry, University of Surrey, Guildford, Surrey GU2 7XH, U.K.
3. The National Physical Laboratory, Teddington, Middlesex TW11 0LW, U.K.
4. Imaging and Data Analytics, Clinical Pharmacology and Safety Science, R&D, AstraZeneca, Cambridge CB4 0WG, U.K.
5. Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G61 1QH, U.K.