Köln 2025 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 37: Nuclear Astrophysics V
HK 37.4: Vortrag
Mittwoch, 12. März 2025, 18:30–18:45, SR 0.03 Erw. Physik
Beta Spectroscopy Studies of Broad Energy Germanium (BEGe) Detectors and GEANT3 with 90Sr — •Davud Sokolovic — Goethe Universität, Frankfurt am Main
Beta spectroscopy is a critical tool in nuclear astrophysics, particularly in the context of the activation method, as it allows the study of radioactive isotopes that decay predominantly or exclusively via beta decay, with minimal gamma emissions. Broad Energy Germanium (BEGe) detectors, which are primarily designed for gamma spectroscopy, offer precise energy resolution and low background noise, making them ideal for studying the beta spectrum of the isotope 90Sr, which exclusively undergoes beta decay. However, to fully utilise these detectors in beta spectroscopy, a systematic characterisation of their response to beta radiation is required.
The primary objective of this research is to address discrepancies observed between experimental measurements and GEANT3 simulations. Therefore, a comprehensive study of energy loss mechanisms, including inelastic scattering and bremsstrahlung, is undertaken to refine simulation models and enhance our understanding of the interaction between beta particles and the detector material. In this talk, first results from this study are presented, providing insights into the potential of BEGe detectors for beta spectroscopy and the refinement of nuclear data.
Keywords: Beta Spectroscopy; BEGe Detectors; GEANT3