Gießen 2024 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 72: Poster
HK 72.6: Poster
Thursday, March 14, 2024, 17:15–18:45, HBR 14: Foyer
Activation experiment for cross-section measurements of proton-induced reactions around A=110 — •Benedikt Machliner, Felix Heim, Martin Müller, Svenja Wilden, and Andreas Zilges — University of Cologne, Institute for Nuclear Physics, Germany
Understanding the nucleosynthesis of stable isotopes on the proton-rich side of the valley of stability, the so called p-nuclei, is still subject of current reasearch. Most reactions relevant for the p-process take place far away from the valley of stability, hence theoretical calculations for cross sections and reaction rates are crucial. To adjust and verify theoretical models a wide database of experimental results is needed [1]. In the context of p-nuclei the region around A=110 is particularly interesting as it contains seven p-nuclei (102Pd, 106Cd, 108Cd, 113In, 112Sn, 114Sn and 115Sn). In order to extend the experimental database in this mass region the activation method is well suited. Using the University of Cologne’s 10 MV FN Tandem accelerator and the Cologne Clover Counting setup [2] proton-induced reactions on four cadmium isotopes, on 102Pd, and 116Sn were performed at astrophysically relevant energies, respectively. The cross section results will be presented and a method of analyzing reactions applicable to nuclei hindered by long-lasting metastable states in the reaction product will be introduced.
Supported by the DFG (ZI 510/8-2)
[1] M. Arnould and S. Goriely, Phys. Rep. 384, 1 (2003).
[2] F. Heim et al., Nucl. Instrum. Methods A 966 (2020) 163854.
Keywords: p-nuclei; activation