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Results of the $^{244}$Cm, $^{246}$Cm and $^{248}$Cm neutron-induced capture cross sections measurements at EAR1 and EAR2 of the n_TOF facility
/ nTOF Collaboration
Accurate neutron capture cross section data for minor actinides (MAs) are required to estimate the production and transmutation rates of MAs in light water reactors, critical fast reactors like Gen-IV systems, and other innovative reactor systems such as accelerator driven systems (ADS). In particular, 244Cm, 246Cm and 248Cm play a role in the transport, storage and transmutation of the nuclear waste of the current nuclear reactors, due to the contribution of these isotopes to the radiotoxicity, neutron emission, and decay heat in the spent nuclear fuel. [...]
2023 - 6 p.
- Published in : EPJ Web Conf. 284 (2023) 01009
Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01009
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High-resolution cross section measurements for neutron interactions on $^{89}$Y with incident neutron energies up to 95 keV
/ Tagliente, G (INFN, Bari) ; Milazzo, P M (INFN, Trieste) ; Paradela, C (Geel, JRC) ; Kopecky, S (Geel, JRC) ; Vescovi, D (INFN, Perugia ; Cagliari Observ.) ; Alaerts, G (Geel, JRC) ; Damone, L A (INFN, Bari ; CERN) ; Heyse, J (Geel, JRC) ; Krtička, M (Charles U.) ; Schillebeeckx, P (Geel, JRC) et al.
The cross section of the $^{89}$Y(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 cross section, $^{89}$Y represents one of the key nuclides for the stellar s-process. [...]
2024 - 18 p.
- Published in : Eur. Phys. J. A 60 (2024) 21
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Characterization and First Test of an i-TED Prototype at CERN n_TOF
/ Babiano-Suarez, V (Valencia U., IFIC) ; Caballero, L (Valencia U., IFIC) ; Domingo-Pardo, C (Valencia U., IFIC) ; Ladarescu, I (Valencia U., IFIC) ; Aberle, O (CERN) ; Alcayne, V (Madrid, CIEMAT) ; Amaducci, S (INFN, Catania) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Bacak, M (CERN ; TU Vienna) et al.
Neutron capture cross section measurements are of fundamental importance for the study of the slow process of neutron capture, so called s-process. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. [...]
2019 - 5 p.
- Published in : Springer Proc. Phys. 225 (2019) 169-173
In : La Rábida 2018 International Scientific Meeting on Nuclear Physics, La Rábida, Spain, 18 - 22 Jun 2018, pp.169-173
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4.
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Measurement of the $^{244}$ Cm and $^{246}$ Cm Neutron-Induced Cross Sections at the n_TOF Facility
/ Alcayne, V (Madrid, CIEMAT) ; Kimura, A (JAERI, Tokai) ; Mendoza, E (Madrid, CIEMAT) ; Cano-Ott, D (Madrid, CIEMAT) ; Aberle, O (CERN) ; Amaducci, S (INFN, Catania) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Babiano-Suarez, V (Valencia U., IFIC) ; Bacak, M (CERN ; Vienna, Tech. U.) et al.
The neutron capture reactions of the$^{244}$ Cm and$^{246}$ Cm isotopes open the path for the formation of heavier Cm isotopes and of heavier elements such as Bk and Cf in a nuclear reactor. In addition, both isotopes belong to the minor actinides with a large contribution to the decay heat and to the neutron emission in irradiated fuels proposed for the transmutation of nuclear waste and fast critical reactors. [...]
2019 - 6 p.
- Published in : Springer Proc. Phys. 225 (2019) 117-122
In : La Rábida 2018 International Scientific Meeting on Nuclear Physics, La Rábida, Spain, 18 - 22 Jun 2018, pp.117-122
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Monte Carlo simulations and n-p differential scattering data measured with Proton Recoil Telescopes
/ Terranova, N (ENEA, Frascati ; INFN, CNAF) ; Aberle, O (CERN) ; Alcayne, V (Madrid, CIEMAT) ; Amaducci, S (INFN, LNS ; Catania U.) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Babiano-Suarez, V (Valencia U., IFIC) ; Bacak, M (CERN ; Vienna, Tech. U. ; IRFU, Saclay) ; Barbagallo, M (CERN ; INFN, Bari) ; Bennett, S (Manchester U.) et al.
The neutron-induced fission cross section of $^{235}$U, a standard at thermal energy and between 0.15 MeV and 200 MeV, plays a crucial role in nuclear technology applications. The long-standing need of improving cross section data above 20 MeV and the lack of experimental data above 200 MeV motivated a new experimental campaign at the n_TOF facility at CERN. [...]
2020 - 5 p.
- Published in : EPJ Web Conf. 239 (2020) 01024
fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01024
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Study of photon strength functions of $^{241}$Pu and $^{245}$Cm from neutron capture measurements
/ Mendoza, E (Madrid, CIEMAT) ; Alcayne, V (Madrid, CIEMAT) ; Cano-Ott, D (Madrid, CIEMAT) ; Kimura, A (JAEA, Ibaraki) ; Skarbeli, A V (Madrid, CIEMAT) ; Aberle, O (CERN) ; Amaducci, S (INFN, LNS ; Catania U.) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Babiano-Suarez, V (Valencia U., IFIC) et al.
We have measured theγ-rays following neutron capture on240Pu and244Cm at the n_TOF facility at CERN with the Total Absorption Calorimeter (TAC) and with C6D6 organic scintillators. The TAC is made of 40 BaF2 crystals operating in coincidence and covering almost the entire solid angle. [...]
2020 - 6 p.
- Published in : EPJ Web Conf. 239 (2020) 01015
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01015
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New reaction rates for the destruction of $^7$Be during big bang nucleosynthesis measured at CERN/n_TOF and their implications on the cosmological lithium problem
/ Mengoni, A (ENEA, Frascati ; INFN, Bologna) ; Damone, L A (INFN, Bari ; Bari U.) ; Barbagallo, M (CERN ; INFN, Bari) ; Aberle, O (CERN) ; Alcayne, V (Madrid, CIEMAT) ; Amaducci, S (INFN, LNS ; Catania U.) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Babiano-Suarez, V (Valencia U., IFIC) ; Bacak, M (CERN ; Vienna, Tech. U. ; IRFU, Saclay) et al.
New measurements of the $^{7}$Be (n,$\alpha$)$^{4}$He and $^{7}$Be(n,p)$^{7}$Li reaction cross sections from thermal to keV neutron energies have been recently performed at CERN/n_TOF. Based on the new experimental results, astrophysical reaction rates have been derived for both reactions, including a proper evaluation of their uncertainties in the thermal energy range of interest for big bang nucleosynthesis studies. [...]
2020 - 4 p.
- Published in : EPJ Web Conf. 239 (2020) 07001
fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.07001
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