Radiative Neutron Capture Cross-Section Measurement of Ge Isotopes at n_TOF CERN Facility and Its Importance for Stellar Nucleosynthesis
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AuthorGawlik, A.; Porras Sánchez, José Ignacio; Praena Rodríguez, Antonio Javier; TOF Collaboration
Polish Academy of Sciences
n_TOFNeutron time-of-flightNeutron capture cross-sectionMACS
Gawlik, A... [et al.]. Radiative Neutron Capture Cross-Section Measurement of Ge Isotopes at n_TOF CERN Facility and Its Importance for Stellar Nucleosynthesis. Acta Physica Polonica A, No. 4, Vol. 139 (2021). Doi: [10.12693/APhysPolA.139.383]
SponsorshipAustrian Science Fund (FWF) J3503; Adolf Messer Foundation (Germany); UK Science and Facilities Council ST/M006085/1; European Research Council (ERC); European Commission 677497; National Science Centre, Poland UMO-2016/22/M/ST2/00183; Ministry of Education, Youth & Sports - Czech Republic; Croatian Science Foundation IP-2018-01-8570
This manuscript summarizes the results of radiative neutron capture cross-section measurements on two stable germanium isotopes, Ge-70 and Ge-73. Experiments were performed at the n_TOF facility at CERN via the time-of-flight technique, over a wide neutron energy range, for all stable germanium isotopes (70,72,73,74, and 76). Results for Ge-70 [Phys. Rev. C 100, 045804 (2019)] and Ge-73 [Phys. Lett. B 790, 458 (2019)] are already published. In the field of nuclear structure, such measurements allow to study excited levels close to the neutron binding energy and to obtain information on nuclear properties. In stellar nucleosynthesis research, neutron induced reactions on germanium are of importance for nucleosynthesis in the weak component of the slow neutron capture processes.