Affiliation: | 1. GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany;2. Institute of Condensed Matter Physics, Technical University of Darmstadt, Germany;3. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA, USA;4. Technical University of Darmstadt, Germany;5. Fondazione Centro Nazionale Adroterapia Oncologica, Pavia, Italy |