1. High-resolution cross section measurements for neutron interactions on 89Y with incident neutron energies up to 95 keV.
- Author
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Tagliente, G., Milazzo, P. M., Paradela, C., Kopecky, S., Vescovi, D., Alaerts, G., Damone, L. A., Heyse, J., Krtička, M., Schillebeeckx, P., Mengoni, A., Wynants, R., Valenta, S., Aberle, O., Alcayne, V., Amaducci, S., Andrzejewski, J., Audouin, L., Babiano-Suarez, V., and Bacak, M.
- Subjects
NEUTRON temperature ,NEUTRON measurement ,NUCLEAR astrophysics ,NEUTRON capture ,YTTRIUM isotopes ,NUCLEAR reactors - Abstract
The cross section of the 89 Y(n, γ ) reaction has important implications in nuclear astrophysics and for advanced nuclear technology. Given its neutron magic number N = 50 and a consequent small neutron capture cross section, 89 Y represents one of the key nuclides for the stellar s-process. It acts as a bottleneck in the neutron capture chain between the Fe seed and the heavier elements. Moreover, it is located at the overlapping region, where both the weak and main s-process components take place. 89 Y, the only stable yttrium isotope, is also used in innovative nuclear reactors. Neutron capture and transmission measurements were performed at the time-of-flight facilities n_TOF at CERN and GELINA at JRC-Geel. Resonance parameters of individual resonances were extracted from a resonance analysis of the experimental transmission and capture yields, up to a neutron incident energy of 95 keV. Even though a comparison with results reported in the literature shows differences in resonance parameters, the present data are consistent with the Maxwellian averaged cross section suggested by the astrophysical database KADoNiS. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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