CERN Accelerating science

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1.
Measurement of the neutron-induced fission cross section of Th230 at the CERN n_TOF facility / n_TOF Collaboration
The neutron-induced fission cross section of Th230 has been measured at the neutron time-of-flight facility n_TOF located at CERN. The experiment was performed at the experimental area EAR-1 with a neutron flight path of 185 m, using Micromegas detectors for the detection of the fission fragments. [...]
2023 - 15 p. - Published in : Phys. Rev. C 108 (2023) 014616 Fulltext: PDF;
2.
Characterization of a detector setup for the measurement of the $^{235}$U(n,f) cross section relative to n-p scattering up to 500 MeV at the n_TOF facility at CERN / Manna, A (U. Bologna, DIFA ; INFN, Bologna) ; Pirovano, E (Braunschweig, Phys. Tech. Bund.) ; Colonna, N (INFN, Bari) ; Castelluccio, D (ENEA, Bologna ; INFN, Bologna) ; Camprini, P Console (ENEA, Bologna ; INFN, Bologna) ; Cosentino, L (INFN, LNS) ; Dietz, M (Braunschweig, Phys. Tech. Bund.) ; Ducasse, Q (Braunschweig, Phys. Tech. Bund.) ; Finocchiaro, P (INFN, LNS) ; Naour, C Le (Orsay, IPN) et al.
The measurement of the $^{235}$U(n,f) reaction cross section in the neutron energy region 10 MeV to 500 MeV was carried out at the CERN n_TOF facility. The experimental campaign, completed in 2018, provided precise and accurate data on the fission reaction relative to neutron-proton elastic scattering. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 04016 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.04016
3.
Constraints on the dipole photon strength for the odd uranium isotopes / n_TOF Collaboration
Background: The photon strength functions (PSFs) and nuclear level density (NLD) are key ingredients for calculation of the photon interaction with nuclei, in particular the reaction cross sections. These cross sections are important especially in nuclear astrophysics and in the development of advanced nuclear technologies. [...]
2022 - 14 p. - Published in : Phys. Rev. C 105 (2022) 024618 Fulltext: PDF;
4.
Measurement of the $^{235}$U(n,f) cross section relative to the $^{10}$B(n,α) reaction with Micromegas detectors at the CERN n_TOF facility: First results / n_TOF Collaboration
Neutron cross section measurements are often made relative to a neutron cross section standard. Thus, the accuracy of the neutron standards determines the best possible accuracy of the neutron measurements. [...]
2023 - 4 p. - Published in : EPJ Web Conf. 284 (2023) 01030 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01030
5.
Detector set up for the measurements of the neutron-induced fission cross section of $^{235}$U relative to n-p scattering up to 150 MeV at CERN-n_TOF / Pirovano, E (Braunschweig, Phys. Tech. Bund.) ; Manna, A (INFN, Bologna ; U. Bologna, DIFA) ; Colonna, N (INFN, Bari) ; Console Camprini, P (INFN, Bologna ; ENEA, Bologna) ; Cosentino, L (INFN, LNS) ; Dietz, M (Braunschweig, Phys. Tech. Bund.) ; Ducasse, Q (Braunschweig, Phys. Tech. Bund.) ; Finocchiaro, P (INFN, LNS) ; Massimi, C (INFN, Bologna ; U. Bologna, DIFA) ; Mengoni, A (INFN, Bologna ; ENEA, Bologna) et al.
A new measurement of the $^{235}$U(n,f) fission cross section was carried out at n_TOF. The experiment covered the neutron energy range from 10 MeV up to 500 MeV, and it used the 1H(n,n) cross section as normalization for the neutron fluence measurement. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 04019 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.04019
6.
Measurement of the $^{241}$Am(n,γ) cross section at the n_TOF facility at CERN / n_TOF Collaboration
The neutron capture cross section of $^{241}$Am is an important quantity for nuclear energy production and fuel cycle scenarios. Several measurements have been performed in recent years with the aim to reduce existing uncertainties in evaluated data. [...]
2023 - 4 p. - Published in : EPJ Web Conf. 284 (2023) 01036 Publication: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01036
7.
$^{80}$Se(n,$\gamma$) cross-section measurement at CERN n_TOF / Babiano-Suarez, V (Valencia U., IFIC) ; Aberle, O (CERN) ; Alcayne, V (Madrid, CIEMAT) ; Amaducci, S (INFN, LNS ; Catania U.) ; Andrzejewski, J (Lodz U.) ; Audouin, L (Orsay, IPN) ; Bacak, M (CERN ; Vienna, Tech. U. ; IRFU, Saclay) ; Balibrea-Correa, J (Valencia U., IFIC) ; Barbagallo, M (CERN ; INFN, Bari) ; Bennett, S (Manchester U.) et al.
Radiative neutron capture cross section measurements are of fundamental importance for the study of the slow neutron capture (s-) process of nucleosynthesis. This mechanism is responsible for the formation of most elements heavier than iron in the Universe. [...]
2020 - 8 p. - Published in : J. Phys.: Conf. Ser. 1668 (2020) 012001 Fulltext: PDF;
In : 9th Nuclear Physics in Astrophysics, Frankfurt, Germany, 15 - 20 Sep 2019, pp.012001
8.
Neutron capture measurement at the n TOF facility of the $^{204}$Tl and $^{205}$Tl s-process branching points / Casanovas, A (Barcelona, Polytechnic U.) ; Tarifeño-Saldivia, A E (Barcelona, Polytechnic U.) ; Domingo-Pardo, C (Valencia U., IFIC) ; Calviño, F (Barcelona, Polytechnic U.) ; Maugeri, E (PSI, Villigen) ; Guerrero, C (Seville U.) ; Lerendegui-Marco, J (Seville U. ; Valencia U., IFIC) ; Dressler, R (PSI, Villigen) ; Heinitz, S (PSI, Villigen) ; Schumann, D (PSI, Villigen) et al.
Neutron capture cross sections are one of the fundamental nuclear data in the study of the s (slow) process of nucleosynthesis. More interestingly, the competition between the capture and the decay rates in some unstable nuclei determines the local isotopic abundance pattern. [...]
2020 - 9 p. - Published in : J. Phys.: Conf. Ser. 1668 (2020) 012005 Fulltext: PDF;
In : 9th Nuclear Physics in Astrophysics, Frankfurt, Germany, 15 - 20 Sep 2019, pp.012005
9.
First $^{80}$Se(n,$\gamma$) cross section measurement with high resolution in the full stellar energy range 1 eV - 100 keV and its astrophysical implications for the s-process / n_TOF Collaboration
Most elements heavier than iron have been generated in the stellar media by means of neutron capture reactions, approximately half are produced by the slow neutron capture or s-process. Radiative neutron capture cross section measurements are of fundamental importance for the study of this mechanism. [...]
2022 - 8 p. - Published in : EPJ Web Conf. 260 (2022) 11026 Fulltext: PDF;
In : 16th International Symposium on Nuclei in the Cosmos, Chengdu, China, 21 - 25 Sep 2021, pp.11026
10.
High resolution $^{80}$Se(n,γ) cross section measurement at CERN n_TOF / n_TOF Collaboration
Neutron capture cross section measurements of isotopes close to s-process branching-points are of fundamental importance for the understanding of this nucleosynthesis mechanism through which about 50% of the elements heavier than iron are produced. We present in this contribution the results corresponding to the high resolution measurement, for first time ever, of the $^{80}$Se(n, γ) cross section, in which 98 resonances never measured before have been reported. [...]
2023 - 6 p. - Published in : EPJ Web Conf. 284 (2023) 01001 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01001

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