Ara es mostren els items 1-20 de 190

  • 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
    Accés restringit per política de l'editorial
    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)
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    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)
    Comunicació de congrés
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    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
    Accés obert
    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
    Accés restringit per política de l'editorial
    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 ...
  • Absolute quantification in dopaminergic neurotransmission SPET imaging using a Monte Carlo-based scatter correction and fully 3D reconstruction 

    Ros, D; Pavía, J; Cot Sanz, Alberto; Falcón, C; Crespo, C; Sempau Roma, Josep; Pareto, D; Bullich, S; Lomeña, F; Calviño Tavares, Francisco (2005-09)
    Article
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    Dopamine transporter (DAT) ligands have been developed for in vivo imaging of the dopaminergic system in SPECT. Although the visual analysis of SPECT images is, in general, suitable for clinical assessment, the accurate ...
  • 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
    Accés restringit per política de l'editorial
    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
    Accés restringit per política de l'editorial
    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
    Accés restringit per política de l'editorial
    At then_TOFexperimentatCERNadedicatedsingle-crystalchemicalvapordeposition(sCVD)Diamond Mosaic-Detectorhasbeendevelopedfor(n,α) cross-sectionmeasurements.Thedetector,characterized by anexcellenttimeandenergyresolution, ...
  • 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)
    Comunicació de congrés
    Accés obert
    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)
    Text en actes de congrés
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    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 ...
  • 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
    Accés obert
    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
    Accés obert
    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 ...
  • 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)
    Text en actes de congrés
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    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
    Accés restringit per política de l'editorial
    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 a neutron-beta counting system with beta-delayed neutron emitters 

    Agramunt Ros, Jorge; Taín, J.L.; Gómez Hornillos, María Belén; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (2016-01-21)
    Article
    Accés obert
    A new detection system for the measurement of beta-delayed neutron emission probabilities has been characterized using fission products with well known ß-delayed neutron emission properties. The setup consists of BELEN-20, ...
  • 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)
    Article
    Accés restringit per política de l'editorial
    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 ...
  • 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)
    Comunicació de congrés
    Accés obert
    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 ...