1 Laboratory of Biomedical Technologies, ENEA CR-Casaccia, Via Anguillarese 301, 00123, Rome, Italy. simonetta.pazzaglia@enea.it.
2 Institute of Radiation Medicine, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764, Neuherberg, Germany.
3 Department of Radiobiology and Radiohygiene, Unit of Radiation Medicine, National Public Health Centre, Albert Florian u. 2-6, 1097, Budapest, Hungary.
4 Laboratory of Biomedical Technologies, ENEA CR-Casaccia, Via Anguillarese 301, 00123, Rome, Italy.
5 Radiobiology Unit, Belgian Nuclear Research Centre (SCK CEN), Mol, Belgium.
6 Danish Centre for Particle Therapy, Palle Juul-Jensens Boulevard 25, 8200, Aarhus N, Denmark.
7 Federal Office for Radiation Protection, Ingolstädter Landstr. 1, 85764, Oberschleißheim, Germany. smoertl@bfs.de.