New experimental bremsstrahlung cross-section for light ion beams up to 60 MeV and comparison to theoretical models

F. Ralite (1, 2) , Charbel Koumeir (3) , Arnaud Guertin (1) , Ferid Haddad (1, 3) , Quentin Mouchard (1) , Noël Servagent (1) , Vincent Métivier (1)

1 SUBATECH - Laboratoire de physique subatomique et des technologies associées
2 Institut Bergonié [Bordeaux]
3 GIP ARRONAX [Nantes]

Recent works focused on bremsstrahlung radiation as a non-invasive tool for monitoring proton beams used in radiobiology (>20 MeV). In order to study the validity of theoretical models of bremsstrahlung cross sections, bremsstrahlung X-rays between 4 keV and 15 keV coming from a carbon target irradiated by proton beams in the energy range from 15 MeV to 50 MeV were measured by a silicon drift detector. The obtained data vary from 10 mb keV−1 to 1000 mb keV−1 and fit well the literature and with theoretical model calculation. These results strongly support that bremsstrahlung X-rays models can be used to develop promising online tools for proton beam monitoring.

Mots clés: Bremsstrahlung X-rays; Cross-Section; light ion beam; Carbon target

Domaines: Physique [physics]; Physique Nucléaire Expérimentale [nucl-ex]

F. Ralite, Charbel Koumeir, Arnaud Guertin, Ferid Haddad, Quentin Mouchard, et al.. New experimental bremsstrahlung cross-section for light ion beams up to 60 MeV and comparison to theoretical models. Radiat.Phys.Chem., 2023, 203, pp.110605. ⟨10.1016/j.radphyschem.2022.110605⟩. ⟨hal-03842584⟩