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Now showing items 1-20 of 21

  • 7Be(n,alpha) and 7Be(n,p) cross-section measurement for the cosmological lithium problem at the n TOF facility at CERN 

    Barbagallo, Massimo; Colonna, Nicola; Aberle, O.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The Cosmological Lithium Problem refers to the large discrepancy between the abundance of primordial 7Li predicted by the standard theory of Big Bang Nucleosynthesis and the value inferred from the so-called “Spite plateau” ...

  • 7Be(n , p)7Li reaction and the cosmological lithium problem: measurement of the cross section in a wide energy range at n_TOF at CERN 

    Damone, L.; Barbagallo, Massimo; Mastromarco, M.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (American Institute of Physics (AIP), 2018-07-24)
    Article
    Open Access
    We report on the measurement of the 7Be(n,p)7Li cross section from thermal to approximately 325 keV neutron energy, performed in the high-flux experimental area (EAR2) of the n_TOF facility at CERN. This reaction plays a ...

  • Be-7(n,alpha)He-4 reaction and the cosmological lithium problem: measurement of the cross section in a wide energy range at n_TOF at CERN 

    Barbagallo, Massimo; Musumarra, A.; Cosentino, L.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2016-10-03)
    Article
    Open Access
    The energy-dependent cross section of the Be7(n,alpha)He4 reaction, of interest for the so-called cosmological lithium problem in big bang nucleosynthesis, has been measured for the first time from 10 meV to 10 keV neutron ...

  • Characterization of the n TOF EAR-2 neutron beam 

    Chen, Y.L.; Tassan Got, Laurence; Audouin, Ludmila; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The experimental area 2 (EAR-2) at CERNs neutron time-of-flight facility (n TOF), which is operational since 2014, is designed and built as a short-distance complement to the experimental area 1 (EAR-1). The Parallel Plate ...

  • Dissemination of data measured at the CERN n TOF facility 

    Dupont, E.; Otuka, N.; Cabellos, O.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The n TOF neutron time-of-flight facility at CERN is used for high quality nuclear data measurements from thermal energy up to hundreds of MeV. In line with the CERN open data policy, the n TOF Collaboration takes actions ...

  • Experimental setup and procedure for the measurement of the 7Be(n,p)7Li reaction at n_TOF 

    Barbagallo, Massimo; Andrzejewski, Józef; Mastromarco, M.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2018-04-11)
    Article
    Open Access
    Following the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron ...

  • High-accuracy determination of the neutron flux in the new experimental area n_TOF-EAR2 at CERN 

    Sabaté-Gilarte, M.; Barbagallo, Massimo; Colonna, Nicola; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2017-10-27)
    Article
    Open Access
    A new high flux experimental area has recently become operational at the n_TOF facility at CERN. This new measuring station, n_TOF-EAR2, is placed at the end of a vertical beam line at a distance of approximately 20m from ...

  • Measurement of the radiative capture cross section of the s-process branching points 204Tl and 171Tm at the n_TOF facility (CERN) 

    Casanovas Hoste, Adrià; Domingo-Pardo, C; Guerrero, C.; Calviño Tavares, Francisco; Tarifeño Saldivia, Ariel Esteban; Cortés Rossell, Guillem Pere (EPJ Web of Conferences, 2018)
    Conference report
    Open Access
    The neutron capture cross section of some unstable nuclei is especially relevant for s-process nucleosynthesis studies. This magnitude is crucial to determine the local abundance pattern, which can yield valuable information ...

  • Monte Carlo simulations of the n TOF lead spallation target with the Geant4 toolkit: A benchmark study 

    Lerendegui-Marco, J.; Cortés-Giraldo, M.A.; Guerrero Sánchez, Carlos; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere (EDP Sciences, 2016)
    Conference lecture
    Open Access
    Monte Carlo (MC) simulations are an essential tool to determine fundamental features of a neutron beam, such as the neutron flux or the ¿ -ray background, that sometimes can not be measured or at least not in every position ...

  • New measurement of the 242Pu(n,gamma) cross section at n TOF-EAR1 for MOX fuels: Preliminary results in the RRR 

    Lerendegui-Marco, J.; Guerrero, C.; Cortés-Giraldo, M.A.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with 238U to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing ...

  • Nuclear data activities at the n_TOF facility at CERN 

    Gunsing, Frank; Aberle, O.; Andrzejewski, Józef; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Riego-Pérez, albert; Tarifeño Saldivia, Ariel Esteban (2016-10-21)
    Article
    Open Access
    Nuclear data in general, and neutron-induced reaction cross sections in particular, are important for a wide variety of research fields. They play a key role in the safety and criticality assessment of nuclear technology, ...

  • Radiative neutron capture on 242Pu in the resonance region at the CERN n_TOF-EAR1 facility 

    Lerendegui-Marco, J.; Guerrero, C.; Mendoza, E.; Casanovas Hoste, Adrià; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (AMER PHYSICAL SOC, 2018-02-06)
    Article
    Open Access
    The spent fuel of current nuclear reactors contains fissile plutonium isotopes that can be combined with uranium to make mixed oxide (MOX) fuel. In this way the Pu from spent fuel is used in a new reactor cycle, contributing ...

  • Recent results in nuclear astrophysics at the n_TOF facility at CERN 

    Aberle, O.; Andrzejewski, Józef; Audouin, Ludmila; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (PoS - Proceedings of Science, 2016)
    Conference report
    Open Access
    The neutron time of flight (n_TOF) facility at CERN is a spallation source characterized by a white neutron spectrum. The innovative features of the facility, in the two experimental areas, (20 m and 185 m), allow for an ...

  • Standalone ethanol micro-reformer integrated on silicon technology for onboard production of hydrogen-rich gas 

    Pla, Dolors; Salleras, M.; Morata García, Alejandro; Garbayo, I.; Gerboles, M.; Sabaté, Nuria; Divins, N. J.; Casanovas Hoste, Adrià; Llorca Piqué, Jordi; Tarancón Rubio, Albert (2016)
    Article
    Restricted access - publisher's policy
    A novel design of a silicon-based micro-reformer for onboard hydrogen generation from ethanol is presented in this work. The micro-reactor is fully fabricated with mainstream MEMS technology and consists of an active ...

  • Study of Cu-Zn and Au/TiO2 catalysts on anodized aluminum monoliths for hydrogen generation and purification 

    Adrover, E; Boldrini, D.; Divins, N.J.; Casanovas Hoste, Adrià; Tonetto, G.; López, Eduardo; Llorca Piqué, Jordi (2016-08)
    Article
    Restricted access - publisher's policy
    This work reports the preparation of Cu-Zn and Au/TiO2 catalysts on anodized aluminum monoliths (AAM). The structured catalysts were studied for the generation of H-2 by methanol steam reforming (MSR) and its purification ...

  • The 33S(n,alpha)30Si cross section measurement at n TOF-EAR2 (CERN): From 0.01 eV to the resonance region 

    Sabaté-Gilarte, M.; Praena, J.; Porras, I.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The 33S(n,a)30Si cross section measurement, using 10B(n,a) as reference, at the n_TOF Experimental Area 2 (EAR2) facility at CERN is presented. Data from 0.01¿eV to 100¿keV are provided and, for the first time, the cross ...

  • The CERN n_TOF facility: a unique tool for nuclear data measurement 

    Mingrone, Federica; Aberle, O.; Andrzejewski, Józef; Audouin, Ludmila; Bécares, Vicente; Bacak, M.; Barbagallo, Massimo; Barros, S.; Becvar, F.; Beinrucker, C.; Berthoumieux, Eric; Billowes, J.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere (2015)
    Conference report
    Open Access
    The study of the resonant structures in neutron-nucleus cross-sections, and therefore of the compoundnucleus reaction mechanism, requires spectroscopic measurements to determine with high accuracy the energy of the neutron ...

  • The measurement programme at the neutron time-of-flight facility n TOF at CERN 

    Gunsing, Frank; Aberle, O.; Andrzejewski, Józef; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    Neutron-induced reaction cross sections are important for a wide variety of research fields ranging from the study of nuclear level densities, nucleosynthesis to applications of nuclear technology like design, and criticality ...

  • The n TOF facility: Neutron beams for challenging future measurements at CERN 

    Chiaveri, E.; Aberle, O.; Andrzejewski, Józef; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The CERN n TOF neutron beam facility is characterized by a very high instantaneous neutron flux, excellent TOF resolution at the 185m long flight path (EAR-1), low intrinsic background and coverage of a wide range of neutron ...

  • The Nuclear astrophysics program at n_TOF (CERN) 

    Colonna, Nicola; Aberle, O.; Andrzejewski, Józef; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2018)
    Conference report
    Open Access
    An important experimental program on Nuclear Astrophysics is being carried out at the n_TOF since several years, in order to address the still open issues in stellar and primordial nucleosynthesis. Several neutron capture ...