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CERN Document Server 16 Datensätze gefunden  1 - 10nächste  gehen zum Datensatz: Die Suche hat 0.56 Sekunden gedauert. 
1.
Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams / Balibrea-Correa, J. (Valencia U. ; Valencia U., IFIC) ; Babiano-Suarez, V. (Valencia U. ; Barcelona, Polytechnic U.) ; Lerendegui-Marco, J. (Valencia U. ; Valencia U., IFIC) ; Domingo-Pardo, C. (Valencia U. ; Valencia U., IFIC) ; Ladarescu, I. (Valencia U. ; Valencia U., IFIC) ; Tarifeño-Saldivia, A. (Valencia U. ; Valencia U., IFIC) ; de la Fuente-Rosales, G. (Valencia U. ; Valencia U., IFIC) ; Gameiro, B. (Valencia U. ; Valencia U., IFIC) ; Zaitseva, N. (LLNL, Livermore) ; Alcayne, V. (Madrid, CIEMAT) et al.
Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called $\gamma$-flash, and offer the highest possible detection sensitivity. [...]
arXiv:2411.18969.- 2024-11-30 - 24 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1072 (2025) 170110 Fulltext: Publication - PDF; 2411.18969 - PDF;
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2.
Overview of the dissemination of n_TOF experimental data and resonance parameters / nTOF Collaboration
The n_TOF neutron time-of-flight facility at CERN is used for nuclear data measurements. The n_TOF Collaboration works closely with the Nuclear Reaction Data Centres (NRDC) network to disseminate the experimental data through the international EXFOR library. [...]
2023 - 4 p. - Published in : EPJ Web Conf. 284 (2023) 18001 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.18001
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3.
Measurement of the 160Gd(n, γ) cross section at n_TOF and its medical implications / n_TOF Collaboration
Neutron-capture reactions on gadolinium isotopes play an important role in several fields of physics, in particular in nuclear Astrophysics for the understanding of the nucleosynthesis of heavy elements (beyond iron) in stars via the s- and r-processes [1] and in nuclear technology. Another important application of gadolinium is linked to the production of terbium, that offers a set of clinically interesting isotopes for the ranostics, characterized by complementary physical decay characteristics. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 09002 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.09002
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4.
Compton imaging for enhanced sensitivity (n,γ) cross section TOF experiments: Status and prospects / n_TOF Collaboration
Radiative neutron-capture cross sections are of pivotal importance in many fields such as nucle-osynthesis studies or innovative reactor technologies. A large number of isotopes have been measured with high accuracy, but there are still a large number of relevant isotopes whose cross sections could not be experimentally determined yet, at least with sufficient accuracy and completeness, owing to limitations in detection techniques, sample production methods or in the facilities themselves.In the context of the HYMNS (High-sensitivitY Measurements of key stellar Nucleo-Synthesis reactions) project over the last six years we have developed a novel detection technique aimed at background suppression in radiative neutron-capture time-of-flight measurements. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 01018 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01018
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5.
Multi-section fission ionization chamber for measurement of 239Pu(n,γ) reaction in fission tagging method / Perkowski, J (Lodz U.) ; Alcayne, V (Madrid, CIEMAT) ; Andrzejewski, J (Lodz U.) ; Cano-Ott, D (Madrid, CIEMAT) ; Gawlik-Ramięga, A (Lodz U.) ; Mendoza, E (Madrid, CIEMAT) ; Sánchez-Caballero, A (Madrid, CIEMAT) ; Sibbens, G (Geel, JRC) ; Vanleeuw, D (Geel, JRC) ; Aberle, O (CERN) et al.
The 239Pu(n,γ) reaction cross section is very important for operation of both thermal and fast reactors, when loaded with MOX fuels. According to the NEA/OECD High Priority Request List the precision of cross section data for this reaction should be improved. [...]
2024 - 8 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1067 (2024) 169649 Fulltext: PDF;
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6.
Pushing the high count rate limits of scintillation detectors for challenging neutron-capture experiments / Balibrea-Correa, J. (Valencia U. ; Valencia U., IFIC) ; Lerendegui-Marco, J. (Valencia U. ; Valencia U., IFIC) ; Babiano-Suarez, V. (Valencia U. ; Valencia U., IFIC) ; Domingo-Pardo, C. (Valencia U. ; Valencia U., IFIC) ; Ladarescu, I. (Valencia U. ; Valencia U., IFIC) ; Tarifeño-Saldivia, A. (Valencia U. ; Valencia U., IFIC) ; Fuente-Rosales, G. De La ; Alcayne, V. (Madrid, CIEMAT) ; Cano-Ott, D. (Madrid, CIEMAT) ; González-Romero, E. (Madrid, CIEMAT) et al.
One of the critical aspects for the accurate determination of neutron capture cross sections when combining time-of-flight and total energy detector techniques is the characterization and control of systematic uncertainties associated to the measuring devices. In this work we explore the most conspicuous effects associated to harsh count rate conditions: dead-time and pile-up effects. [...]
arXiv:2311.01365.- 2024-04-25 - 13 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 1064 (2024) 169385 Fulltext: 2311.01365 - PDF; Publication - PDF;
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7.
The n_TOF NEAR Station Commissioning and first physics case / n_TOF Collaboration
The NEAR Station is a new experimental area developed at the n_TOF Facility at CERN. The activation station of NEAR underwent a characterization of the beam following the installation of the new n_TOF Spallation Target. [...]
2023 - 7 p. - Published in : EPJ Web Conf. 284 (2023) 06009 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.06009
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8.
The neutron time-of-flight facility n_TOF at CERN Recent facility upgrades and detector developments / n_TOF Collaboration
Based on an idea by Carlo Rubbia, the n_TOF facility at CERN has been operating for over 20 years. It is a neutron spallation source, driven by the 20 GeV/c proton beam from the CERN PS accelerator. [...]
2023 - 11 p. - Published in : J. Phys. : Conf. Ser. 2586 (2023) 012150 Fulltext: PDF;
In : 28th International Nuclear Physics Conference (INPC 2022), Cape Town, South Africa, 11 - 16 Sep 2022, pp.012150
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9.
A Segmented Total Energy Detector (sTED) optimized for $(n,\gamma)$ cross-section measurements at n_TOF EAR2 / n_TOF Collaboration
The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) is operational and delivers a neutron fluence of $4\times 10^7$ neutrons per nominal proton pulse, which is 50 times higher than the one of Experimental ARea 1 (EAR1) of $8\times10^5$ neutrons per pulse. [...]
arXiv:2403.09759.- 2024-01-09 - 14 p. - Published in : Radiat. Phys. Chem. 217 (2024) 111525 Fulltext: 2403.09759 - PDF; Publication - PDF;
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10.
Recent highlights and prospects on (n,$\gamma$) measurements at the CERN n_TOF facility / n_TOF Collaboration
Neutron capture cross-section measurements are fundamental in the study of the slow neutron capture (s-) process of nucleosynthesis and for the development of innovative nuclear technologies. [...]
arXiv:2310.15714. - 7 p.
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