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CERN Document Server Znaleziono 2,047 rekordów  1 - 10następnykoniec  skocz do rekordu: Szukanie trwało 0.21 sekund. 
1.
Measurement of (n,cp) reactions in EAR1 using an enhanced experimental setup / Goula, Styliani (University of Ioannina, Ioannina, Greece & CERN) ; Cosentino, Luigi (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Claps, Gerardo (Agenzia nazionale per le nuove tecnologie (ENEA), Italy & INFN - Laboratori Nazionali Frascati, Frascati, Italy) ; Amaducci, Simone (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Colonna, Nicola (INFN - Sezione di Bari, Italy) ; Finocchiaro, Paolo (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Mastromarco, Mario (INFN - Sezione di Bari, Italy) ; Massimi, Cristian (Dipartimento di Fisica e Astronomia, Universita di Bologna, Italy) ; Mazzone, Anna Maria (INFN - Sezione di Bari, Italy) ; Patronis, Nikolas (University of Ioannina, Ioannina, Greece) et al.
CERN-INTC-2024-057 ; INTC-P-629-ADD-1.
- 2024.
Original Document (INTC-P-629) - Full text
2.
Measurement of (n,cp) reactions in EAR1 and EAR2 for characterization and validation of new detection systems and techniques / Cosentino, Luigi (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Murtas, Fabrizio (INFN - Laboratori Nazionali Frascati, Frascati, Italy & CERN) ; Amaducci, Simone (INFN - Laboratori Nazionali del Sud, Catania, Italy & CERN) ; Mastromarco, Mario (INFN - Sezione di Bari, Italy) ; Vecchio, Gianfranco (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Finocchiaro, Paolo (INFN - Laboratori Nazionali del Sud, Catania, Italy) ; Patronis, Nikolas (University of Ioannina, Greece) ; Goula, Stela (University of Ioannina, Greece) ; Massimi, Cristian (INFN - Sezione di Bari, Italy) ; Mazzone, Annamaria (INFN - Sezione di Bari, Italy) et al.
CERN-INTC-2022-019 ; INTC-P-629.
- 2022.
Fulltext
3.
Recoil Proton Telescopes and Parallel Plate Avalanche Counters for the $^{235}$U(n,f) cross section measurement relative to H(n,n)H between 10 and 450 MeV neutron energy / n_TOF Collaboration
With the aim of measuring the $^{235}$U(n,f) cross section at the n_TOF facility at CERN over a wide neutron energy range, a detection system consisting of two fission detectors and three detectors for neutron flux determination was realized. The neutron flux detectors are Recoil Proton Telescopes (RPT), based on scintillators and solid state detectors, conceived to detect recoil protons from the neutron-proton elastic scattering reaction. [...]
arXiv:2211.12427.- 2023-04-18 - 30 p. - Published in : JINST 18 (2023) P04024 Fulltext: document - PDF; 2211.12427 - PDF;
4.
A detector system for `absolute' measurements of fission cross sections at n_TOF in the energy range below 200 MeV / n_TOF Collaboration
A new measurement of the $^{235}$U(n,f) cross section was performed at the neutron time-of-flight facility n_TOF at CERN. The experiment focused on neutron energies from 20 MeV to several hundred MeV, and was normalized to neutron scattering on hydrogen. [...]
arXiv:2211.13323.- 2023-11-14 - 34 p. - Published in : JINST 18 (2023) P11011 Fulltext: document - PDF; 2211.13323 - PDF;
5.
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;
6.
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;
7.
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.
Fulltext
8.
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
9.
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
10.
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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