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These collections contains nTOF related documents.

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n_TOF Conference Contributions

Latest additions:
2021-06-19
06:25
Study of the neutron-induced fission cross section of $^{237}$Np at CERN's n_TOF facility over a wide energy range / n_TOF Collaboration
Neutron-induced fission cross sections of isotopes involved in the nuclear fuel cycle are vital for the design and safe operation of advanced nuclear systems. Such experimental data can also provide additional constraints for the adjustment of nuclear model parameters used in the evaluation process, resulting in the further development of fission models. [...]
2020 - 4 p. - Published in : EPJ Web Conf. 239 (2020) 05006 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.05006

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2021-06-19
06:25
Measurement and analysis of $^{155,157}$Gd(n,$\gamma$) from thermal energy to 1 keV / n_TOF Collaboration
We have measured the capture cross section of the $^{155}$Gd and $^{157}$Gd isotopes between 0.025 eV and 1 keV. The capture events were recorded by an array of 4 C$_{6}$D$_{6}$ detectors, and the capture yield was deduced exploiting the total energy detection system in combination with the Pulse Height Weighting Techniques. [...]
2020 - 4 p. - Published in : EPJ Web Conf. 239 (2020) 01041 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01041

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2021-06-19
06:25
Accurate measurement of the standard $^{235}$U(n,f) cross section from thermal to 170 keV neutron energy / n_TOF Collaboration
An accurate measurement of the $^{235}$U(n,f) cross section from thermal to 170 keV of neutron energy has recently been performed at n_TOF facility at CERN using $^{6}$Li(n,t)$^{4}$He and $^{10}$B(n,a)$^{7}$Li as references. This measurement has been carried out in order to investigate a possible overestimation of the $^{235}$U fission cross section evaluation provided by most recent libraries between 10 and 30 keV. [...]
2020 - 5 p. - Published in : EPJ Web Conf. 239 (2020) 08002 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.08002

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2021-06-19
06:25
First results of the $^{241}$Am(n,f) cross section measurement at the Experimental Area 2 of the n_TOF facility at CERN / n_TOF Collaboration
Feasibility, design and sensitivity studies on innovative nuclear reactors that could address the issue of nuclear waste transmutation using fuels enriched in minor actinides, require high accuracy cross section data for a variety of neutron-induced reactions from thermal energies to several tens of MeV. The isotope $^{241}$ Am ($T$$_{1/2}$ = 433 years) is present in high-level nuclear waste (HLW), representing about 1.8 % of the actinide mass in spent PWR UOx fuel. [...]
2020 - 5 p. - Published in : EPJ Web Conf. 239 (2020) 05014 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.05014

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2021-06-19
06:25
First results of the $^{230}$Th(n,f) cross section measurements at the CERN n_TOF facility / n_TOF Collaboration
The study of neutron-induced reactions on actinides is of considerable importance for the design of advanced nuclear systems and alternative fuel cycles. Specifically, $^{230}$Th is produced from the α-decay of $^{234}$U as a byproduct of the $^{232}$Th/$^{233}$U fuel cycle, thus the accurate knowledge of its fission cross section is strongly required. [...]
2020 - 6 p. - Published in : EPJ Web Conf. 239 (2020) 05004 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.05004

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2021-06-19
06:25
Neutron capture cross section measurements of $^{241}$Am at the n_TOF facility / n_TOF Collaboration
Neutron capture on $^{241}$ Am plays an important role in the nuclear energy production and also provides valuable information for the improvement of nuclear models and the statistical interpretation of the nuclear properties. A new experiment to measure the $^{241}$ Am(n,$\gamma$) cross section in the thermal region and the first few resonances below 10 eV has been carried out at EAR2 of the n_TOF facility at CERN. [...]
2020 - 5 p. - Published in : EPJ Web Conf. 239 (2020) 01009 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01009

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2021-06-19
06:25
The $^{154}$Gd neutron capture cross section measured at the n_TOF facility and its astrophysical implications / n_TOF Collaboration
The (n,$\gamma$ cross sections of the gadolinium isotopes play an important role in the study of the stellar nucleosynthesis. In particular, among the isotopes heavier than Fe, $^{154}$Gd together with $^{152}$Gd have the peculiarity to be mainly produced by the slow capture process, the so-called s-process, since they are shielded against the $\beta$-decay chains from the r-process region by their stable samarium isobars. [...]
2020 - 5 p. - Published in : EPJ Web Conf. 239 (2020) 07003 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.07003

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2021-06-19
06:25
Preliminary results on the $^{233}$U $\alpha$-ratio measurement at n_TOF / n_TOF Collaboration
$^{233}$U is the fissile nuclei in the Th-U fuel cycle with a particularily small neutron capture cross setion which is on average about one order of magnitude lower than its fission cross section. Hence, the measurement of the $^{233}$U(n,$\gamma$) cross section relies on a method to accurately distinguish between capture and fission $\gamma$-rays. [...]
2020 - 5 p. - Published in : EPJ Web Conf. 239 (2020) 01043 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01043

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2021-06-19
06:25
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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2021-06-19
06:25
Status and perspectives of the neutron time-of-flight facility n_TOF at CERN / 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.
Since the start of its operation in 2001, based on an idea of Prof. Carlo Rubbia [1], the neutron time of-flight facility of CERN, n_TOF, has become one of the most forefront neutron facilities in the world for wide-energy spectrum neutron cross section measurements. [...]
2020 - 8 p. - Published in : EPJ Web Conf. 239 (2020) 17001 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.17001

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