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CERN Document Server 找到 17 筆記錄  1 - 10下一個  跳到記錄: 檢索需時 0.69 秒. 
1.
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
2.
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
3.
A segmented total energy detector (sTED) for (n, γ) cross section measurements at n_TOF EAR2 / n_TOF Collaboration
The neutron time-of-flight facility n_TOF is characterised by its high instantaneous neutron intensity, high-resolution and broad neutron energy spectra, specially conceived for neutron-induced reaction cross section measurements. Two Time-Of-Flight (TOF) experimental areas are available at the facility: experimental area 1 (EAR1), located at the end of the 185 m horizontal flight path from the spallation target, and experimental area 2 (EAR2), placed at 20 m from the target in the vertical direction. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 01043 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01043
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
5.
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
6.
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;
7.
New perspectives for neutron capture measurements in the upgraded CERN-n_TOF Facility / n_TOF Collaboration
The n_TOF facility has just undergone in 2021 a major upgrade with the installation of its third generation spallation target that has been designed to optimize the performance of the two n_TOF time-of-flight lines. This contribution describes the key features and limitations for capture measurements in the two beam lines prior to the target upgrade and presents first results of (n,$\gamma$) measurements carried out as part of the commissioning of the upgraded facility. [...]
arXiv:2303.08724.- 2023 - 6 p.
- Published in : EPJ Web Conf.: 284 (2023) , pp. 01028 Fulltext: document - PDF; 2303.08724 - PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.01028
8.
New detection systems for an enhanced sensitivity in key stellar (n,γ) measurements / n_TOF Collaboration
Neutron capture cross-section measurements are fundamental in the study of astrophysical phenomena, such as the slow neutron capture (s-) process of nucleosynthesis operating in red-giant and massive stars. However, neutron capture measurements via the time-of-flight (TOF) technique on key $s$-process nuclei are often challenging. [...]
arXiv:2303.08701.- 2023 - 7 p. - Published in : EPJ Web Conf. 279 (2023) 13001 Fulltext: 2303.08701 - PDF; document - PDF;
In : 10th Conference on Nuclear Physics in Astrophysics (NPA-X 2022), CERN, Geneva, Switzerland, 4 - 9 Sep 2022, pp.13001
9.
First measurement of the $^{94}$Nb($n$,$\gamma$) cross section at the CERN n_TOF facility / n_TOF Collaboration
One of the crucial ingredients for the improvement of stellar models is the accurate knowledge of neutron capture cross-sections for the different isotopes involved in the $s$-,$r$- and $i$- processes. These measurements can shed light on existing discrepancies between observed and predicted isotopic abundances and help to constrain the physical conditions where these reactions take place along different stages of stellar evolution.In the particular case of the radioactive $^{94}$Nb, the $^{94}$Nb($n$,$\gamma$) cross-section could play a role in the determination of the $s$-process production of $^{94}$Mo in AGB stars, which presently cannot be reproduced by state-of-the-art stellar models. [...]
arXiv:2301.11199.- 2023 - 8 p.
- Published in : EPJ Web Conf.: 279 (2023) , pp. 06004 Fulltext: 2301.11199 - PDF; document - PDF; Publication - PDF;
In : 10th Conference on Nuclear Physics in Astrophysics (NPA-X 2022), CERN, Geneva, Switzerland, 4 - 9 Sep 2022, pp.06004
10.
Advances and new ideas for neutron-capture astrophysics experiments at CERN n_TOF / n_TOF Collaboration
This article presents a few selected developments and future ideas related to the measurement of $(n,\gamma)$ data of astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for the use of low-efficiency radiation detectors in time-of-flight neutron-capture measurements is discussed, with particular emphasis on the systematic accuracy. [...]
arXiv:2208.02163.- 2023-01-26 - 11 p. - Published in : Eur. Phys. J. A 59 (2023) 8 Fulltext: document - PDF; Publication - PDF; 2208.02163 - PDF;

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1 Plaza, J A
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1 Plaza, Jose Miguel Encinas
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