1. Medical Physics Laboratory, University of Ioannina Medical School, 45110 Ioannina, Greece
2. Geant4 Associates International Ltd., Hebden Bridge, United Kingdom
3. Université Toulouse III-Paul Sabatier, UMR1037 CRCT, Toulouse, France
4. Inserm, UMR1037 CRCT, Toulouse, France
5. Centre for Medical Radiation Physics, University of Wollongong, Wollongong, NSW, Australia
6. Division of Nuclear Physics, Ton Duc Thang University, Ho Chi Minh City, Vietnam
7. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam
8. Univ. Bordeaux, CENBG, UMR 5797, F-33170 Gradignan, France
9. CNRS, IN2P3, CENBG, UMR 5797, F-33170 Gradignan, France