Now showing items 1-20 of 211

  • 197-Au(n,gamma ) cross section in the unresolved resonance region 

    Poch Parés, Agustí; Praena, J.; Pretel Sánchez, Carme; Igashira, M.; Quesada, J.; Pigni, M.T.; Jericha, E.; Plag, R.; Isaev, S.; Plompen, A.; Karadimos, D.; Cennini, P.; Carrapiço, C.; Carrillo de Albornoz, A.; Cano-Ott, D.; Capote, R.; Calviani, M.; Calviño Tavares, Francisco; Belloni, F.; Berthoumieux, E.; Perrot, L.; Martínez, T.; Pavlopoulos, P.; Pancin, J.; Papachristodoulou, C.; O'Brien, S.; Oshima, M.; Patronis, N.; Pavlik, A.; Papadopoulos, C.; Paradela, C.; Oberhummer, H.; Lozano, M.; Neves, F.; Mosconi, M.; Tassan-Got, L.; Mastinu, P.; Tarrío, D.; Mendoza, E.; Terlizzi, R.; Milazzo, P.M.; Tavora, L.; Moreau, C.; Losito, R.; Vaz, P.; Vannini, G.; Márques, L.; Villamarin, D.; Marrone, S.; Ventura, A.; Tagliente, G.; Marganiec, J.; Tain, J.L.; Lukic, S.; Baumann, P.; Barbagallo, M.; Wisshak, K.; Plukis, A.; Badurek, G.; Lindote, A.; Wiescher, M.; Audouin, L.; Lopes, I.; Wendler, H.; Assimakopoulos, P.A.; Lampoudis, C.; Walter, S.; Andrzejewski, J.; Kadi, Y.; Leeb, H.; Andriamonje, S.; Kossionides, E.; Krticka, M.; Álvarez-Velarde, F.; Álvarez, H.; Aerts, G.; Becvár, F.; Konovalov, V.; Vlastou, R.; Rauscher, T.; Koehler, P.; Voss, F.; Ketlerov, V.; Kerveno, M.; Vlachoudis, V.; Karamanis, D.; Reifarth, R.; Abbondanno, U.; Griesmayer, E.; Lederer, C.; Guerrero, C.; Colonna, N.; Haas, B.; Domingo-Pardo, C.; Haight, R.; Gunsing, F.; Heil, M.; Käppeler, F.; Herrera-Martinez, A.; Massimi, C.; Mengoni, A.; Wallner, A.; Sarmento, R.; Savvidis, I.; Santos, C.; Sarchiapone, L.; Rullhusen, P.; Gramegna, F.; Salgado, J.; Goverdovski, A.; Rubbia, C.; Gonzalez-Romero, E.; Rudolf, G.; Goncalves, I.; Stephan, C.; Rosetti, M.; Ferreira-Marques, R.; Fitzpatrick, L.; Ferrant, L.; Ferrari, A.; Furman, W.; Frais-Koelbl, H.; Fujiii, K.; Duran, I.; Embid-Segura, M.; Eleftheriadis, C.; David, S.; Dillmann, I.; Dolfini, R.; Dridi, W.; Cortés Rossell, Guillem Pere; Couture, A.; Cox, J.; Dahlfors, M.; Chiaveri, E.; Chepel, V. (2011-03-17)
    Article
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    The cross section of the reaction 197Au(n,γ ) was measured with the time-of-flight technique at the n TOF (neutron time-of-flight) facility in the unresolved resonance region between 5 and 400 keV using a pair of C6D6 (where ...
  • 237-Np(n,f) cross section: new data and present status 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2011-08-12)
    Article
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    In this document, we present the nal result obtained at the n TOF experiment for the neutron- induced ssion cross section of the 237Np, from the ssion threshold up to 1 GeV. The method applied to get this result is ...
  • 238U(n, gamma) reaction cross section measurement with C6D6 detectors at the n_TOF CERN facility. 

    Mingrone, Federica; Massimi, Cristian; Vannini, Gianni; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Hernández Prieto, Álvaro; Riego Pérez, Albert (2013)
    Conference report
    Open Access
    The radiative capture cross section of 238U is very important for the developing of new reactor technologies and the safety of existing ones. Here the preliminary results of the 238U(n,¿) cross section measurement performed ...
  • 62Ni(n,gamma) and 63Ni(n,gamma) cross sections measured at the n_TOF facility at CERN 

    Lederer, Claudia; Massimi, Cristian; Berthoumieux, Eric; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-02-28)
    Article
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    The cross section of the Ni62(n,gamma) reaction was measured with the time-of-flight technique at the neutron time-of-flight facility n_TOF at CERN. Capture kernels of 42 resonances were analyzed up to 200 keV neutron ...
  • 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 ...
  • 96Zr(n,gamma ) measurement at the n TOF facility at CERN 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Poch Parés, Agustí (2011-03-17)
    Article
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    The (n,γ ) cross section of 96Zr has been investigated at the CERN n TOF spallation neutron source. Highresolution time-of-flight measurements using an enriched ZrO2 sample allowed us to analyze 15 resonances below 40 ...
  • A Micromegas detector for neutron beam imaging at the n TOF facility at CERN 

    Belloni, Fabio; Andriamonje, S.; Berthoumieux, Eric; Calviani, Marco; Colonna, Nicola; Gunsing, Frank; Tsinganis, A.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
    Article
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    Micromegas (Micro-MEsh Gaseous Structure) detectors are gas detectors consisting of a stack of one ionization and one proportional chamber. A micromesh separates the two communicating regions, where two different electric ...
  • A new CVD diamond mosaic-detector for (n, a) cross-section measurements at the n_TOF experiment at CERN 

    Weiß, C.; Griesmayer, E.; Guerrero, C.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Badurek, G.; Barbagallo, M.; Bécares, V.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Hernández-Prieto, A.; Riego Pérez, Albert (2013-08-02)
    Article
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    At then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ...
  • A new CVD diamond mosaic-detector for (n, ) cross-section measurements at the n_TOF experiment at CERN 

    Weiss, Christina; Griesmayer, E.; Guerrero, C.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Badurek, G.; Barbagallo, M.; Bécares, V.; Becvar, F.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (2013)
    Article
    Restricted access - publisher's policy
    At then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ...
  • Angular distribution in the neutron-induced fission of actinides 

    Leong, L.S.; Tassan Got, Laurence; Tarrío, D.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (EPJ Web of Conferences, 2013)
    Conference report
    Open Access
    Above 1MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the ...
  • Application of Photon Strength Functions to (n,gamma) measurements with the n_TOF TAC 

    Guerrero, Carlos; Abbondanno, U.; Aerts, G.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Poch, Agustí (PoS - Proceedings of Science, 2018)
    Conference report
    Open Access
    The neutron capture cross section measurements at the CERN n_TOF facility are performed using a new detection system, the segmented Total Absorption Calorimeter (TAC). All measurements are performed in reference to the ...
  • Approaching the precursor nuclei of the third r-process peak with RIBs 

    Domingo-Pardo, C; Agramunt Ros, Jorge; Algora, A.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (Institute of Physics (IOP), 2013)
    Conference lecture
    Open Access
    The rapid neutron nucleosynthesis process involves an enormous amount of very exotic neutron-rich nuclei, which represent a theoretical and experimental challenge. Two of the main decay properties that affect the final ...
  • Astrophysical Implications of the139La(n,gamma) and151Sm(n,gamma) Cross Section Measured at n_TOF 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006)
    Conference report
    Open Access
    The nuclear resonance parameters and the capture cross section of the neutron magic isotope 139La and of the radioactive isotope 151Sm have been measured relative to 197Au in the energy range of 0.6 eV-1 MeV at neutron ...
  • Astrophysics at n-TOF facility 

    Tagliente, G.; Colonna, Nicola; Marrone, S.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008)
    Conference report
    Open Access
    The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several GeV, covering the full energy range of interest for nuclear astrophysics, ...
  • 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 ...
  • Beta-decay half-lives and beta-delayed neutron emission probabilities for several isotopes of Au, Hg, Tl, Pb, and Bi, beyond N = 126 

    Caballero-Folch, R.; Domingo-Pardo, C; Agramunt Ros, Jorge; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2017-06-23)
    Article
    Open Access
    Background: There have been measurements on roughly 230 nuclei that are beta-delayed neutron emitters. They range from 8He up to 150La. Apart from 210Tl, with a branching ratio of only 0.007%, no other neutron emitter has ...
  • Beta decay studies of neutron rich nuclei using total absorption gamma-ray spectroscopy and delayed neutron measurements 

    Jokinen, Ari; Tain, J.L.; Algora, A.; Estevez, E.; Rubio, B.; Valencia, E; Jordan, D.; Äystö, J.; Eronen, T.; Gómez Hornillos, María Belén; Cortés Rossell, Guillem Pere; Caballero Folch, Roger; Gelletly, W.; Bunce, M.; Batist, L.; Moore, I.; Porta, A.; Van Vinh, B.; Fallot, M.; Giot, L.; Martínez, T.; Domingo-Pardo, C.; Garcia, A. (2011-08-11)
    Article
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  • Capture cross section measurements of 186,187,188-Os at n TOF: the resolved resonance region 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (EDP Sciences, 2007)
    Conference report
    Open Access
    The neutron capture cross sections of 186,187,188Os have been measured at the CERN neutron time-of-flight facility, n TOF, in the neutron energy range from 1 eV up to 1MeV. In this contribution, we report the results of ...
  • 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 ...