CERN Accelerating science

CERN Document Server Znaleziono 51 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.57 sekund. 
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;
2.
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
3.
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
4.
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
5.
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
6.
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
7.
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
8.
First high resolution measurement of neutron capture resonances in 176Yb at the n_TOF CERN facility / n_TOF Collaboration
Several international agencies recommend the study of new routes and new facilities for producing radioisotopes with application to nuclear medicine. $^{177}$Lu is a versatile radioisotope used for therapy and diagnosis (theranostics) of cancer with good success in neuroendocrine tumours that is being studied to be applied to a wider range of tumours. [...]
2023 - 5 p. - Published in : EPJ Web Conf. 284 (2023) 09001 Fulltext: PDF;
In : 15th International Conference on Nuclear Data for Science and Technology, Online, 21 - 29 Jul 2022, pp.09001
9.
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
10.
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

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