1. Institute of Radiation Medicine (IRM), Helmholtz Zentrum München – German Research Center for Environmental Health, Neuherberg, Germany
2. Institute for Applied Physics and Measurement Technology, Universität der Bundeswehr München, Neubiberg, Germany
3. Department of Radiation Oncology, School of Medicine, Technische Universität München, Germany
4. Department for Anatomy and Cell Biology, Ludwig-Maximilians Universität München, Germany
5. GSI Helmholtz Center for Heavy Ion Research, Department of Biophysics, Darmstadt, Germany