1. Sunway University, Centre for Biomedical Physics, School of Healthcare and Medical Sciences, No 5, Jalan Universiti, Bandar Sunway, Selangor Darul Ehsan, Malaysia
2. Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, UK
3. The Department of Medical Physics, Royal Surrey County Hospital, Egerton Road, Guildford, UK
4. Department of Basic Medical Sciences for Radiation Damages; National Institute of Radiological Sciences (NIRS), National Institutes for Quantum and Radiological Science and Technology, 4–9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
5. Radiation Effect Research Team, Department of Accelerator and Medical Physics, NIRS, National Institutes for Quantum and Radiological Science and Technology, 4–9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
6. Heavy-Ion Radiotherapy Promotion Unit & Department of Accelerator and Medical Physics, NIRS, National Institutes for Quantum and Radiological Science and Technology, 4–9-1 Anagawa, Inage-ku, Chiba-shi, Chiba, Japan
7. Gray Laboratory, CRUK/MRC Oxford Oncology Institute, University of Oxford, ORCRB-Roosevelt Drive, Oxford, UK