Now showing items 1-20 of 33

  • 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)
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    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 ...
  • Characterization of the new n_TOF neutron ream: fluence, profile and resolution 

    Bécares, Vicente; Cano Ott, Daniel; Calviani, Marco; Andriamonje, S.; Brugger, Matthias; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (2011-08-12)
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    After a halt of four years, the n TOF spallation neutron facility at CERN has resumed operation in November 2008 with a new spallation target characterized by an improved safety and engineering design, resulting in a ...
  • 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 ...
  • Experiments with neutron beams for the astrophysical s process 

    Lederer, Claudia; Altstadt, Sebastian; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (Institute of Physics (IOP), 2013)
    Conference report
    Open Access
    Neutron capture cross sections are the key nuclear physics input to study the slow neutron capture process, which is responsible for forming about half of the elemental abundances above Fe. Stellar neutron capture cross ...
  • 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)
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    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 ...
  • Forthcoming (n, gamma) measurements on the Fe and Ni isotopes at CERN n_TOF 

    Domingo-Pardo, C; Andriamonje, S.; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (Institute of Physics (IOP), 2009)
    Conference report
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    An overview of the past, present and future research activities at the CERN neutron time of flight facility n TOF is given, with special focus on the astrophysical aspects. During the first campaign (Phase I), neutron ...
  • High precision measurement of the radiative capture cross section of 238U at the n TOF CERN facility 

    Mingrone, Federica; Altstadt, Sebastian; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (EDP Sciences, 2016)
    Conference report
    Open Access
    The importance of improving the accuracy on the capture cross-section of 238U has been addressed by the Nuclear Energy Agency, since its uncertainty significantly affects the uncertainties of key design parameters for both ...
  • 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)
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    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 ...
  • 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)
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    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
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    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 238U radiative capture cross section with C6D6 at the CERN n TOF facility 

    Mingrone, Federica; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (2014-05-01)
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    We present the preliminary results of the U-238(n,gamma) reaction cross section measurement, performed on April 2012 at the CERN n TOF facility using C6D6 scintillation detectors over an energy range from thermal to 1 MeV. ...
  • Measurement of the240Pu(n,f) cross-section at the CERN n-TOF facility: First results from EAR-2 

    Tsinganis, A.; Stamatopoulos, A.; Colonna, Nicola; Vlastou, R.; Barbagallo, Massimo; Berthoumieux, Eric; Calviani, Marco; Andrzejewski, Józef; Audouin, Ludmila; Bécares, Vicente; Bosnar, Damir; Brugger, Matthias; Caamaño, Manuel; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2015)
    Conference report
    Open Access
    The accurate knowledge of neutron cross-sections of a variety of plutonium isotopes and other minor actinides, such as neptunium, americium and curium, is crucial for feasibility and performance studies of advanced nuclear ...
  • 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)
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    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)
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    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)
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    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, ...
  • Measurement of the angular distribution of fission fragments using a PPAC assembly at CERN n_TOF 

    Tarrío, D.; Audouin, Ludmila; Altstadt, Sebastian; Andrzejewski, Józef; Barbagallo, Massimo; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-01-08)
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    A fission reaction chamber based on Parallel Plate Avalanche Counters (PPACs) was built for measuring angular distributions of fragments emitted in neutron-induced fission of actinides at the neutron beam available at the ...
  • Measurement of the neutron capture cross section of the fissile isotope 235U with the CERN n TOF total absorption calorimeter and a fission tagging based on micromegas detectors 

    Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
    Article
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    Current and future nuclear technologies require more accurate nuclear data on (n,¿) cross sections and the alpha-ratios of fissile isotopes. Their measurement presents several difficulties, mainly related to the strong ...
  • Neutron spectroscopy of 26Mg states: constraining the stellar neutron source 22Ne(alpha, n) 25Mg 

    Massimi, Cristian; Altstadt, Sebastian; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (Elsevier, 2017-02-16)
    Article
    Open Access
    This work reports on accurate, high-resolution measurements of the 25Mg(n, gamma )26Mg and 25Mg(n, tot) cross sections in the neutron energy range from thermal to about 300 keV, leading to a significantly improved 25Mg(n, ...
  • New measurement of the 25Mg(n,gamma) reaction cross section 

    Massimi, Cristian; Koehler, Paul E.; Mingrone, Federica; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Becvar, F.; Belloni, Fabio; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (2014-05-01)
    Article
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    The 25Mg(n,gamma) reaction cross-section has been measured at the neutron time-of-flight facility n TOF at CERN in 2003 and, with an improved experimental set up, in 2012. These measurements aim at addressing important ...