Now showing items 1-20 of 33

    • 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 ...
    • 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” ...
    • A first prototype of C6D6 total-energy detector with SiPM readout for neutron capture time-of-flight experiments 

      Balibrea-Correa, J.; Lerendegui Marco, Jorge; Calvo Diaz-Aldagalán, David; Caballero Ontanaya, Luis; Babiano Suárez, Víctor; Tolosa Delgado, Alvaro; Domingo Pardo, César; Calviño Tavares, Francisco; Tarifeño Saldivia, Ariel Esteban; Casanovas Hoste, Adrià; Cano Ott, Daniel; Alcayne Aicua, Víctor; Bacak, Michael; Barbagallo, Massimo (2021-01-01)
      Article
      Open Access
      Low efficiency total-energy detectors (TEDs) are one of the main tools for neutron capture cross section measurements utilizing the time-of-flight (TOF) technique. State-of-the-art TEDs are based on a CD liquid-scintillation ...
    • 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 ...
    • Capture cross section of 236U: the n TOF results 

      Barbagallo, Massimo; Colonna, Nicola; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Bécares, Vicente; Becvar, Zdenek; Belloni, Fabio; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Hernández Prieto, Álvaro; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      Neutron induced capture cross section on 236U has been measured with high accuracy and high resolution at n TOF, in order to improve data libraries needed for the development of advanced nuclear reactors. Preliminary results ...
    • Experimental neutron capture data of 58Ni from the CERN n_TOF facility 

      Žugec, Petar; Barbagallo, Massimo; Colonna, Nicola; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (EDP Sciences, 2015)
      Conference lecture
      Open Access
      The neutron capture cross section of 58Ni was measured at the neutron time of flight facility n_TOF at CERN, from 27 meV to 400 keV neutron energy. Special care has been taken to identify all the possible sources of ...
    • Experimental setup and procedure for the measurement of the 7Be(n,alpha)alpha reaction at n_TOF 

      Cosentino, L.; Musumarra, A.; Barbagallo, Massimo; Calviño Tavares, Francisco; Casanovas, Adria; Cortés Rossell, Guillem Pere; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (2016-09-11)
      Article
      Open Access
      The newly built second experimental area EAR2 of the n_TOF spallation neutron source at CERN allows to perform (n, charged particles) experiments on short-lived highly radioactive targets. This paper describes a detection ...
    • 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 ...
    • Fission fragment angular distribution of 232Th(n,f) at the CERN n TOF facility 

      Tarrío, D.; Audouin, Ludmila; Tassan Got, Laurence; Altstadt, Sebastian; Andrzejewski, Józef; Barbagallo, Massimo; Bécares, Vicente; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      The angular distribution of fragments emitted in neutron-induced fission of 232Th was measured in the white spectrum neutron beam at the n TOF facility at CERN. A reaction chamber based on Parallel Plate Avalanche Counters ...
    • 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 ...
    • Integral cross section measurement of the12C(n,p)12B reaction 

      Žugec, Petar; Colonna, Nicola; Bosnar, Damir; Ventura, A.; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Berthoumieux, Eric; Brugger, Matthias; Calviani, Marco; Calviño Tavares, Francisco; Cano Ott, Daniel; Riego Pérez, Albert (2015)
      Conference report
      Open Access
      The integral cross section of the12C(n, p)12B reaction was measured at the neutron time of flight facility nTOF at CERN, from the reaction threshold at 13.6 MeV up to 10 GeV, by means of the combined activation and a ...
    • Investigation of neutron-induced reactions at n TOF: an overview of the 2009-2012 experimental program 

      Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05)
      Article
      Restricted access - publisher's policy
      The neutron time-of-flight facility n TOF is operating at CERN (Switzerland) since 2001, having started in 2009 a new campaign with an upgraded spallation target. The ambitious program carried out includes a large number ...
    • Investigation of the 240Pu (n, f) reaction at the n_TOF/EAR2 facility in the 9 meV–6 MeV range 

      Stamatopoulos, A.; Tsinganis, Andrea; Colonna, Nicola; Vlastou, Roza; Diakaki, Maria; Žugec, Petar; Gunsing, Frank; Sabaté-Gilarte, Marta; Barbagallo, Massimo; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (American Physical Society (APS), 2020-07-21)
      Article
      Open Access
      Background: Nuclear waste management is considered amongst the major challenges in the field of nuclear energy. A possible means of addressing this issue is waste transmutation in advanced nuclear systems, whose operation ...
    • Measurement and analysis of 241Am(n,¿) cross sections with C6D6 detectors at the n TOF facility at CERN 

      Fraval, Kevin; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Becvar, F.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      The 241Am(n,¿) cross sections have been measured at the n TOF facility at CERN using C6D6 liquid scintillators and time of flight spectrometry. The results in the resolved resonance range bring new constraints to evaluations ...
    • Measurement and analysis of the Am 241 (n, gamma) cross section with liquid scintillator detectors using time-of-flight spectroscopy at the n-TOF facility at CERN 

      Fraval, Kevin; Gunsing, Frank; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Belloni, Fabio; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Hernández Prieto, Álvaro; Riego Pérez, Albert (2014-04-23)
      Article
      Restricted access - publisher's policy
      The Am241(n,¿) cross section has been measured at the n-TOF facility at CERN using deuterated benzene liquid scintillators, commonly known as C6D6 detectors, and time-of-flight spectrometry. The results in the resolved ...
    • Measurement of the 235U(n, f) cross section relative to the 6Li(n, t) and 10B(n, a) standards from thermal to 170 keV neutron energy range at n_TOF 

      Amaducci, Simone; Cosentino, Luigi; Barbagallo, Massimo; Casanovas Hoste, Adrià; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2019-07-26)
      Article
      Open Access
      The 235U(n, f ) cross section was measured at n_TOF relative to 6Li(n, t) and 10B(n,a) , with high resolution ( L=183.49(2) m) and in a wide energy range (25meV-170keV) with 1.5% systematic uncertainty, making use of a ...
    • Measurement of the 235U(n,f) cross section relative to the 6Li(n,t) and 10B(n,a) standards from thermal to 170 keV neutron energy range at n_TOF 

      Amaducci, Simone; Cosentino, Luigi; Barbagallo, Massimo; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Tarifeño Saldivia, Ariel Esteban; Cortés Rossell, Guillem Pere (2019-02-27)
      External research report
      Open Access
      The 235U(n,f) cross section was measured in a wide energy range at n_TOF relative to 6Li(n,t) and 10B(n,alpha), with high resolution and in a wide energy range, with a setup based on a stack of six samples and six silicon ...
    • Measurement of the 241Am and the 243Am neutron capture cross sections at the n TOF facility at CERN 

      Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Becvar, F.; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      The capture cross sections of 241Am and 243Am were measured at the n TOF facility at CERN in the epithermal energy range with a BaF2 Total Absorption Calorimeter. A preliminary analysis of the 241Am and a complete analysis ...
    • Measurement of the 242Pu(n,f) cross section at the CERN n TOF facility 

      Tsinganis, A.; Berthoumieux, Eric; Colonna, Nicola; Calviani, Marco; Andriamonje, S.; Gunsing, Frank; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      The accurate knowledge of relevant nuclear data is crucial for the design of advanced nuclear systems. These data include neutron cross sections of various plutonium isotopes and other minor actinides. The 242Pu(n,f) cross ...
    • Measurement of the 54,57Fe(n,gamma) cross section in the resolved resonance region at CERN n TOF 

      Taín, J.L.; Lederer, Claudia; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Becvar, F.; Belloni, Fabio; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      54Fe and 57 Fe are stable iron isotopes, which play an important role in the nucleosynthesis of the slow neutron capture process (s process). In addition, these nuclei are present in many structural materials, and therefore, ...