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CERN Document Server 找到 80 笔记录  1 - 10下一个最後  跳到记录: 检索需时 0.78 秒. 
1.
Radiative neutron capture cross section of $^{242}$Pu measured at n_TOF-EAR1 in the unresolved resonance region up to 600 keV / n_TOF Collaboration
The design of fast reactors burning MOX fuels requires accurate capture and fission cross sections. [...]
arXiv:2412.01332.
- 20.
Fulltext
2.
Shedding Light on the Origin of Pb204, the Heaviest s-Process–Only Isotope in the Solar System / n_TOF Collaboration
Asymptotic giant branch stars are responsible for the production of most of the heavy isotopes beyond Sr observed in the solar system. Among them, isotopes shielded from the r-process contribution by their stable isobars are defined as s-only nuclei. [...]
2024 - 8 p. - Published in : Phys. Rev. Lett. 133 (2024) 052702 Fulltext: PDF;
3.
Neutron-induced fission cross sections of Th232 and U233 up to 1 GeV using parallel plate avalanche counters at the CERN n_TOF facility / n_TOF Collaboration
The neutron-induced fission cross sections of Th232 and U233 were measured relative to U235 in a wide neutron energy range up to 1 GeV (and from fission threshold in the case of Th232, and from 0.7 eV in case of U233), using the white-spectrum neutron source at the CERN Neutron Time-of-Flight (n_TOF) facility. Parallel plate avalanche counters (PPACs) were used, installed at the Experimental Area 1 (EAR1), which is located at 185 m from the neutron spallation target. [...]
2023 - 21 p. - Published in : Phys. Rev. C 107 (2023) 044616 Fulltext: PDF;
4.
$^{74}$Ge($n,\gamma $) cross section below 70 keV measured at n_TOF CERN / n_TOF Collaboration
Neutron capture reaction cross sections on $^{74}$Ge are of importance to determine $^{74}$Ge production during the astrophysical slow neutron capture process. We present new resonance data on $^{74}$Ge($n,\gamma $) reactions below 70 keV neutron energy. [...]
2022 - 9 p. - Published in : Eur. Phys. J. A 58 (2022) 239 Fulltext: PDF;
5.
$^{7}$ Be(n,p)$^{7}$ Li Cross Section Measurement for the Cosmological Lithium Problem at the n $\_$ TOF Facility at CERN / n_TOF Collaboration
One of the most puzzling problems in Nuclear Astrophysics is the “Cosmological Lithium Problem”, i.e the discrepancy between the primordial abundance of$^{7}$ Li observed in metal poor halo stars (Asplund et al. in Astrophys J 644:229–259, 2006, [1]), and the one predicted by Big Bang Nucleosynthesis (BBN). [...]
2019 - 8 p. - Published in : Springer Proc. Phys. 219 (2019) 25-32
In : Nuclei in the Cosmos XV (NIC XV), Assergi, Italy, 24 - 29 Jun 2018, pp.25-32
6.
Radiative Neutron Capture Cross-Section Measurement of Ge Isotopes at n_TOF CERN Facility and Its Importance for Stellar Nucleosynthesis / n_TOF Collaboration
This manuscript summarizes the results of radiative neutron capture cross-section measurements on two stable germanium isotopes, $^{70}$Ge and $^{73}$Ge. Experiments were performed at the n_TOF facility at CERN via the time-of-flight technique, over a wide neutron energy range, for all stable germanium isotopes (70,72,73,74, and 76). [...]
2021 - 6 p. - Published in : Acta Phys. Pol. A 139 (2021) 383-388 Fulltext: PDF;
In : 46th Extraordinary Congress of the Polish Physical Society, Warsaw, Poland, 16 - 18 Oct 2020, pp.383-388
7.
$^{92}$Zr($n,\gamma$) and ($n$,tot) measurements at the GELINA and n_TOF facilities / n_TOF Collaboration
Background: Stellar nucleosynthesis of elements heavier than iron is driven by neutron capture processes. 92Zr is positioned at a strategic point along the slow nucleosynthesis path, given its proximity to the neutron magic number N = 50 and its position at the matching region between the weak and main slow processes. Purpose: In parallel with recent improved astronomical data, the extraction of accurate Maxwellian averaged cross sections (MACSs) derived from a more complete and accurate set of resonance parameters should allow for a better understanding of the stellar conditions at which nucleosynthesis takes place. Methods: Transmission and capture cross section measurements using enriched 92Zr metallic samples were performed at the time-of flight facilities GELINA of JRC-Geel (BE) and n_TOF of CERN (CH). [...]
2022 - 14 p. - Published in : Phys. Rev. C 105 (2022) 025805 Fulltext: PDF;
8.
Measurement of the $^{76}\mathrm{Ge}(n,{\gamma})$ cross section at the n_TOF facility at CERN / n_TOF Collaboration
The $^{76}\mathrm{Ge}(n,{\gamma})$ reaction has been measured at the n_TOF facility at CERN via the time-of-flight technique. Neutron capture cross sections on $^{76}$Ge are of interest to a variety of low-background experiments, such as neutrinoless double β decay searches, and to nuclear astrophysics. [...]
2021 - 7 p. - Published in : Phys. Rev. C 104 (2021) 044610 Fulltext: PDF;
9.
Measurement of the $^{242}$Pu(n,$\gamma$) cross section from thermal to 500 keV at the Budapest research reactor and CERN n_TOF-EAR1 facilities / n_TOF Collaboration
The design and operation of innovative nuclear systems requires a better knowledge of the capture and fission cross sections of the Pu isotopes. For the case of capture on $^{242}$Pu, a reduction of the uncertainty in the fast region down to 8-12% is required. [...]
2020 - 6 p. - Published in : EPJ Web Conf. 239 (2020) 01019 fulltext from publisher: PDF;
In : International Conference on Nuclear Data for Science and Technology (ND 2019), Beijing, China, 19 - 24 May 2019, pp.01019
10.
Measurement of the $\alpha$ ratio and $(n,\gamma)$ cross section of $^{235}\mathrm{U}$ from 0.2 to 200 eV at n_TOF / n_TOF Collaboration
We measured the neutron capture-to-fission cross-section ratio (α ratio) and the capture cross section of U235 between 0.2 and 200 eV at the n_TOF facility at CERN. The simultaneous measurement of neutron-induced capture and fission rates was performed by means of the n_TOF BaF2 Total Absorption Calorimeter (TAC), used for detection of γ rays, in combination with a set of micromegas detectors used as fission tagging detectors. [...]
2020 - 18 p. - Published in : Phys. Rev. C 102 (2020) 044615 Fulltext: PDF;

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