The cross section of the Y-89(n,gamma) 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 crosssection,89Y represents one of the key nuclides for the stellars-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 mains-process components take place.Y-89, the only stable yttrium isotope, is also used in innovative nuclear reactors. Neutron capture and transmission measurements were per-formed 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 astro-physical database KADoNiS.

Tagliente, G., Milazzo, P.M., Paradela, C., Kopecky, S., Vescovi, D., Alaerts, G., et al. (2024). High-resolution cross section measurements for neutron interactions on 89Y with incident neutron energies up to 95 keV. EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI, 60(1), 1-18 [10.1140/epja/s10050-024-01243-4].

High-resolution cross section measurements for neutron interactions on 89Y with incident neutron energies up to 95 keV

Lo Meo, S.;Manna, A.;Massimi, C.
Writing – Review & Editing
;
Mingrone, F.;Vannini, G.;
2024

Abstract

The cross section of the Y-89(n,gamma) 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 crosssection,89Y represents one of the key nuclides for the stellars-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 mains-process components take place.Y-89, the only stable yttrium isotope, is also used in innovative nuclear reactors. Neutron capture and transmission measurements were per-formed 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 astro-physical database KADoNiS.
2024
Tagliente, G., Milazzo, P.M., Paradela, C., Kopecky, S., Vescovi, D., Alaerts, G., et al. (2024). High-resolution cross section measurements for neutron interactions on 89Y with incident neutron energies up to 95 keV. EUROPEAN PHYSICAL JOURNAL. A, HADRONS AND NUCLEI, 60(1), 1-18 [10.1140/epja/s10050-024-01243-4].
Tagliente, G.; Milazzo, P. M.; Paradela, C.; Kopecky, S.; Vescovi, D.; Alaerts, G.; Damone, L. A.; Heyse, J.; Krtička, M.; Schillebeeckx, P.; Mengoni,...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/960701
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