Now showing items 21-40 of 66

  • Influence of copper on nickel-based catalysts in the conversion of glycerol 

    Miranda Morales, Bárbara C.; Chimentao, Ricardo J; Szanyi, J; Braga, A.H.; Santos, Jeannette B O; Gispert Guirado, Francesc; Llorca Piqué, Jordi; Medina Cabello, Francisco (2015-05-01)
    Article
    Open Access
    The catalytic transformation of glycerol to value-added compounds was investigated over bimetallic Ni-Cu/gamma-Al2O3 catalysts with Ni/Cu atomic ratios of 8/1, 4/1, 2/1, 1/1, 1/2, 1/4, and 1/8. XPS analysis revealed that ...
  • 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 ...
  • Measurement and analysis of the 241-Am neutron capture cross section at the n_TOF facility at CERN 

    Mendoza, E.; Cano-Ott, D; Altstadt, Sebastian; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (AMER PHYSICAL SOC, 2018-05-24)
    Article
    Open Access
    The 241Am(n,¿ ) cross section has been measured at the n_TOF facility at CERN with the n_TOF BaF2 Total Absorption Calorimeter in the energy range between 0.2 eV and 10 keV. Our results are analyzed as resolved resonances ...
  • Measurement and resonance analysis of the 33S (n, alpha) 30Si cross section at the CERN n_TOF facility in the energy region from 10 to 300 keV 

    Praena, J.; Sabaté-Gilarte, M.; Porras, I.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (AMER PHYSICAL SOC, 2018-06-04)
    Article
    Open Access
    The 33S(n,a)30Si cross section has been measured at the neutron time-of-flight (n_TOF) facility at CERN in the neutron energy range from 10 to 300 keV relative to the 10B(n,a)7Li cross-section standard. Both reactions were ...
  • Measurement of the 197-Au(n,gamma) cross section at n TOF: towards a new standard 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (EDP Sciences, 2007)
    Conference report
    Open Access
    Two different detectors and techniques are employed at n TOF facility, at CERN, to improve the accuracy of the neutron capture cross section of 197Au(n,γ): a total absorption calorimeter and a set of C6D6. The accurate knowledge ...
  • 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 240,242Pu(n,f) cross section at the CERN n_TOF facility 

    Tsinganis, A.; Berthoumieux, Eric; Guerrero, Carlos; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2014)
    Conference report
    Open Access
    Knowledge of neutron cross sections of various plutonium isotopes and other minor actinides is crucial for the design of advanced nuclear systems. The 240, 242Pu(n,f) cross sections were measured at the CERN n_TOF facility, ...
  • Measurement of the 24,25,26Mg(n, gamma) reaction cross-section at n-TOF 

    Massimi, Cristian; Andriamonje, S.; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (PoS - Proceedings of Science, 2010)
    Conference report
    Open Access
    We have measured the neutron-induced capture cross-section of the importants-process isotopesof magnesium. The measurement has been performed at the neutron time-of-flight facility n_TOFat CERN. From a preliminary analysis ...
  • Measurement of the 244Cm and 246Cm neutron-induced capture cross sections at the n_TOF facility 

    Alcayne Aicua, Víctor; Mendoza Cembranos, Emilio; Kimura, Atsushi; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EPJ Web of Conferences, 2019)
    Conference report
    Open Access
    The neutron capture reactions of the 244Cm and 246Cm isotopes open the path for the formation of heavier Cm isotopes and heavier elements such asThe neutron capture reactions of the 244Cm and 246Cm isotopes open the path ...
  • Measurement of the heaviest Beta-delayed 2-neutron emitter: 136Sb 

    Caballero-Folch, R.; Taín, J.L.; Agramunt Ros, Jorge; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (EDP Sciences, 2016)
    Conference lecture
    Open Access
    The Beta-delayed neutron emission probability, Pn , of very exotic nuclei is crucial for the understanding of nuclear structure properties of many isotopes and astrophysical processes such as the rapid neutron capture ...
  • Measurement of the neutron capture cross-section of 236U 

    Barbagallo, Massimo; Belloni, Fabio; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2010-10-07)
    External research report
    Open Access
  • Measurement of the neutron capture cross sections of 233U, 237Np, 240,242Pu, 241,243Am and 245Cm with a total absorption calorimeter at n_TOF 

    Abbondanno, U.; Aerts, G.; Álvarez, F.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme (2003-10-10)
    External research report
    Open Access
    Accurate and reliable neutron capture cross section data for actinides are necessary for the proper design, safety regulation and precise performance assessment of transmutation devices such as Fast Critical Reactors or ...
  • 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 ...
  • Measurement of the U-238(n,gamma) cross section up to 80 keV with the total absorption calorimeter at the CERN n_TOF facility 

    Wright, T.; Guerrero, C.; Billowes, J.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (AMER PHYSICAL SOC, 2017-12)
    Article
    Open Access
    The radiative capture cross section of a highly pure (99.999%), 6.125(2) grams and 9.56(5)E-4 atoms/barn areal density 238U sample has been measured with the Total Absorption Calorimeter (TAC) in the 185 m flight path at ...
  • Measurements of fission cross sections of actinides 

    Abbondanno, U.; Aerts, G.; Álvarez, H.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2003-04-01)
    External research report
    Open Access
    A measurement of the neutron induced fission cross sections of 237Np, 241,243Am and of 245Cm is proposed for the n_TOF neutron beam. Two sets of fission detectors will be used: one based on PPAC counters and another based ...
  • Measurements of the 90,91,92,93,94,96zr (n, gamma) cross-sections at n_tof 

    Milazzo, P.M.; Tagliente, G.; Abbondanno, U.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008)
    Conference report
    Open Access
    Neutron capture cross sections for zirconium isotopes have important implications in the field of nuclear astrophysics as well as in the nuclear technology. In particular they play a key role for the determination of the ...
  • Metodologia per incorporar la fusió nuclear dins d'una programació educativa de tecnologia 

    Baeza Pérez, Eduard (Universitat Politècnica de Catalunya, 2017-06-22)
    Master thesis
    Open Access
    L'objectiu principal és l'elaboració d'una metodologia que permeti, dins dels continguts de Generació d'electricitat de 2n d'ESO, que el alumnes interioritzin conceptes relacionats amb la fusió nuclear. Aquest tema gairebé ...
  • (n,cp) reactions study at the n_TOF facilitty at CERN: results for the cosmological lithium problem 

    Barbagallo, Massimo; Aberle, O.; Alcayne, V.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (European Organization for Nuclear Research (CERN), 2019)
    Conference lecture
    Open Access
    The Big Bang Nucleosynthesis describes the production of the lightest nuclides from deuterium to Li at the early stages of the Universe. While a general good agreement is found for most of the isotopes involved in the ...
  • Neutron beam imaging with micromegas detectors in combination with neutron time-of-flight at the n_tof facility at CERN 

    Belloni, Fabio; Andriamonje, S.; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (2012)
    Conference report
    Open Access
    A bulk micromegas detector with the anode segmented in 2 orthogonal directions and equipped with a neutron/charged particle converter is employed at the neutron time-of-light (nTOF) facility at CERN to determine the incident ...
  • Neutron capture cross section measurements of 238U, 241Am and 243Am at n_TOF 

    Andriamonje, S.; Andrzejewski, Józef; Audouin, Ludmila; Calviño Tavares, Francisco (2009-04-20)
    External research report
    Open Access
    The increase of the world energy demand and the need of low carbon energy sources have triggered the renaissance and/or enhancement of nuclear energy in many countries. Fundamental nuclear physics can contribute in a ...