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Artículo
Dispersive coupled-channel analysis of nucleon scattering from 232 Th up to 200 MeV
(American Physical Society, 2005-08-01)
An isospin-dependent coupled-channels optical model potential containing a dispersive term (including nonlocal contribution) is used to simultaneously fit the available experimental database (including strength functions ...
Artículo
Dispersive spherical optical model of neutron scattering from 27 Al up to 250 MeV
(American Physical Society, 2002-03-01)
A spherical optical model potential (OMP) containing a dispersive term is used to fit the available experimental database of s(u) and sT for n127Al covering the energy range 0.1–250 MeV using relativistickinematics ...
Artículo
Approximate Lane consistency of the dispersive coupled-channels potential for actinides
(The American Physical Society, 2007)
A previously derived dispersive coupled-channels optical model potential for nucleon scattering on 232Th and 238U nuclei [Capote, Soukhovitskii, Quesade, and Chiba, Phys. Rev. C 72, 064610 (2005)] has been tested against ...
Artículo
Neutron-induced fission cross section of Np 237 in the keV to MeV range at the CERN n-TOF facility
(American Physical Society, 2016)
The neutron-induced fission cross section of 237 Np was experimentally determined at the high-resolution and high-intensity facility n TOF , at CERN, in the energy range 100 keV to 9 MeV, using the 235 U ( n,f ...
Artículo
Measurement and resonance analysis of the 237Np neutron capture cross section
(American Physical Society, 2012)
The neutron capture cross section of 237Np was measured between 0.7 and 500 eV at the CERN n-TOF facility using the 4π BaF2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the ...
Artículo
Measurement of the α ratio and (n, γ) cross section of 235U from 0.2 to 200 eV at n_TOF
(American Physical Society, 2020)
We measured the neutron capture-to-fission cross-section ratio (α ratio) and the capture cross section of 235U between 0.2 and 200 eV at the n_TOF facility at CERN. The simultaneous measurement of neutron-induced capture ...
Artículo
Analytical expressions for the dispersive contributions to the nucleon-nucleus optical potential
(American Physical Society, 2003-06-01)
Analytical solutions of dispersion relations in the nucleon-nucleus optical model have been found for both volume and surface potentials. For the energy dependence a standard Brown-Rho function has been assumed for both ...
Ponencia
The neutron time-of-flight facility n TOF at CERN: Recent facility upgrades and detector developments
(IOP Publishing Ltd, 2023)
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. Neutrons in a very wide ...
Ponencia
Measurement of the U-235(n,f) cross section relative to the (10) B( n a) reaction with Micromegas detectors at the CERN n_TOF facility: first results
(EDP Sciences, 2023-05)
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. The U-235(n,f) ...
Ponencia
New detection systems for an enhanced sensitivity in key stellar (n,gamma) measurements
(E D P Sciences, 2023)
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 ...