Köln 2025 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 23: Poster
HK 23.2: Poster
Dienstag, 11. März 2025, 17:30–19:00, Foyer Physik
Charge-changing cross sections of oxygen isotopes for biomedical applications — Daria Kostyleva1 and •Alexander Vitantzakis2 for the Super-FRS Experiment collaboration — 1GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany — 2Goethe-Universität Frankfurt, 60323 Frankfurt am Main, Germany
Charge-changing cross-sections, σcc, are nuclear properties with significant importance in both basic research and applied physics. One practical application is hadron therapy, which relies on precise knowledge of σcc to ensure accurate depth-dose calculations. Specifically, Monte Carlo transport codes such as FLUKA and GEANT4 incorporate these properties of ions into their nuclear reaction models to optimize therapy planning. At GSI, σcc of oxygen isotopes have been studied as part of the BARB ERC grant. This project, titled Biomedical Applications of Radioactive ion Beams (BARB), aims to assess the technical feasibility and explore the potential advantages of using beams of positron-emitting carbon and oxygen isotopes for hadron therapy. A key goal of BARB was to perform the first in-vivo treatment with radioactive ion beams. In this context, beams of 15O and 16O isotopes at 370 MeV/u were produced using the FRS fragment separator. The σcc of these isotopes were measured in carbon, water, and polyethylene targets. This work presents the details of the experiment, the data analysis, and preliminary results.
This study was supported by the ERC Advanced Grant 883425 (BARB) to M. Durante.
Keywords: Charge-changing cross-sections; Hadron therapy; Radioactive ion beams