Ara es mostren els items 51-70 de 264

    • First Measurement of 72Ge(n gamma) at n-TOF 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2018)
      Text en actes de congrés
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      The slow neutron capture process (s-process) is responsible for producing about half of the elemental abundances heavier than iron in the universe. Neutron capture cross sections on stable isotopes are a key nuclear physics ...
    • First measurement of several beta-delayed neutron emitting isotopes beyond N=126 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Algora, A.; Benlliure, J.; Bowry, M.; Cortes, G.; Dillmann, I.; Estradé, A.; Farinon, F.; Geissel, H.; Gelletly, W.; Heil, M.; Kurcewicz, J.; Marganiec, J.; Nociforo, C.; Pietri, S.; Prochazka, A.; Maurice, S.; Rubio, B.; Smith, K.M; Taín Enríquez, José Luis; Weick, H.; Woody, R.W. (2016-06-29)
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      The beta-delayed neutron emission probabilities of neutron rich Hg and Tl nuclei have been measured together with beta-decay half-lives for 20 isotopes of Au, Hg, Tl, Pb, and Bi in the mass region N greater than or similar ...
    • First results from the HENSA/ANAIS collaboration at the Canfranc Underground Laboratory 

      Mont i Geli, Nil; Tarifeño Saldivia, Ariel Esteban; Orrigo, S.; Beristáin Jiménez, José Antonio; Agramunt Ros, Jorge; Camarero Palao, Julio A.; Bemmerer, D.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Dillmann, Iris; Tolosa Delgado, Alvaro (Institute of Physics (IOP), 2021-12-01)
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      The HENSA/ANAIS collaboration aims for the precise determination of the neutron flux that could affect ANAIS-112, an experiment looking for the dark matter annual modulation using NaI(Tl) scintillators. In this work, the ...
    • First results of the new n_TOF spallation target commissioning 

      Berthoumieux, Eric; Andriamonje, S.; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2009)
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      The Neutron Time of Flight facility n_TOF located at CERN started to take data in 2001 . Due to an increase of radioactivity released in the cooling water the experiment was stopped by end of 2004 . In 2008 a new spallation ...
    • First results of the140ce(N,¿)141ce cross-section measurement at n_tof 

      Amaducci, Simone; Colonna, Nicola; Cosentino, Luigi; Cristallo, Sergio; Finocchio, Elisabetta; Massimi, Cristian; Mastromarco, Mario; Aberle, O.; Alcayne Aicua, Víctor; Andrzejewski, Józef; Babiano Suárez, Víctor; Bacak, Michael; Barbagallo, Massimo; Berthoumieux, Eric; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere (2021-06-01)
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      Accés obert
      An accurate measurement of the 140Ce(n,¿) energy-dependent cross-section was performed at the n_TOF facility at CERN. This cross-section is of great importance because it represents a bottleneck for the s-process nucleosynthesis ...
    • Fission cross-section measurements of 233-U, 245-Cm and 241,243-Am at CERN n_TOF facility 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2011-08-12)
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      Accés restringit per política de l'editorial
      Neutron-induced ssion cross-sections of minor actinides have been measured using the n TOF white neutron source at CERN, Geneva, as part of a large experimental program aiming at collecting new data relevant for nuclear ...
    • Fission fragment angular distribution measurements of U-235 and U-238 at CERN n_TOF facility 

      Leal-Cidoncha, E.; Durán, I.; Paradela, C.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (EDP Sciences, 2015)
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      Neutron-induced fission cross sections of U-238 and U-235 are used as standards in the fast neutron region up to 200 MeV. A high accuracy of the standards is relevant to experimentally determine other neutron reaction 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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      Accés restringit per política de l'editorial
      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 ...
    • Fission program at n_TOF 

      Tassan Got, Laurence; Colonna, Nicola; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Tarifeño Saldivia, Ariel Esteban; Cortés Rossell, Guillem Pere (EPJ Web of Conferences, 2019)
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      Since its start in 2001 the n_TOF collaboration developed a measurement program on fission, in view of advanced fuels in new generation reactors. A special effort was made on measurement of cross sections of actinides, ...
    • 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)
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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 ...
    • GEANT4 simulation of the neutron background of the C6D6 set-up for capture studies at n_TOF 

      Žugec, Petar; Colonna, Nicola; Bosnar, Damir; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-20)
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      Accés restringit per política de l'editorial
      The neutron sensitivity of the C6D6 detector setup used at n_TOF facility for capture measurements has been studied by means of detailed GEANT4 simulations. A realistic software replica of the entire n_TOF experimental ...
    • High accuracy 234U(n,f) cross section in the resonance energy region 

      Leal-Cidoncha, E.; Durán, I.; Paradela, C.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gomez Hornillos, B.; Riego Pérez, Albert (EDP Sciences, 2016)
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      New results are presented of the 234U neutron-induced fission cross section, obtained with high accuracy in the resonance region by means of two methods using the 235U(n,f) as reference. The recent evaluation of the 235U(n,f) ...
    • High accuracy 235U(n,f) data in the resonance energy region 

      Paradela, C.; Durán, I.; Tassan Got, Laurence; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme (EDP Sciences, 2015)
      Comunicació de congrés
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      The 235U neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce ...
    • High accuracy U-235(n,f) data in the resonance energy region 

      Paradela, C.; Durán, I.; Tassan Got, Laurence; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme (EPJ Web of Conferences, 2015)
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      The U-235 neutron-induced cross section is widely used as reference cross section for measuring other fission cross sections, but in the resonance region it is not considered as an IAEA standard because of the scarce ...
    • High accuracy, high resolution 235U(n,f) cross section from n_TOF (CERN) from 18 meV to 10 keV 

      Mastromarco, Mario; Amaducci, Simone; Colonna, Nicola; Finocchiaro, Paolo; Cosentino, Luigi; Barbagallo, Massimo; Aberle, O.; Andrzejewski, Józef; Audouin, Ludmila; Bacak, Michael; Balibrea-Correa, J.; Becvar, F.; Berthoumieux, Eric; Billowes, J.; Bosnar, Damir; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (Springer Nature, 2022-08-01)
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      U(n,f) cross section was measured in a wide energy range (18 meV–170 keV) at the n_TOF facility at CERN, relative to 6Li(n,t) and 10B(n,a) standard reactions, with high resolution and accuracy, with a setup based on a stack ...
    • 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)
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      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 ...
    • High-accuracy 233U(n, f ) cross-section measurement at the white-neutron source n TOF from near-thermal to 1 MeV neutron energy 

      Sarchiapone, L.; Savvidis, I.; Konovalov, V.; Stephan, C.; Tagliente, G.; Krticka, M.; Rudolf, G.; Kossionides, E.; Rullhusen, P.; Leeb, H.; Salgado, J.; Capote, R.; Cano-Ott, D.; Mengoni, A.; Calviño Tavares, Francisco; Milazzo, P.M.; Berthoumieux, E.; Massimi, C.; Berthier, B.; Mastinu, P.; Belloni, F.; Lampoudis, C.; Marrone, S.; Becvár, F.; Martínez, T.; Baumann, P.; Badurek, G.; Audouin, L.; Carrapiço, C.; Marganiec, J.; Lukic, S.; Lozano, M.; Santos, C.; Lopes, I.; Lindote, A.; Taín Enríquez, José Luis; Tassan-Got, L.; Assimakopoulos, P.A.; Kadi, Y.; Calviani, M.; Karadimos, D.; Praena, J.; Karamanis, D.; Abbondanno, U.; Ketlerov, V.; Aerts, G.; Kerveno, M.; Álvarez, H.; Koehler, P.; Álvarez-Velarde, F.; Andriamonje, S.; Andrzejewski, J.; Vlachoudis, V.; Vlastou, R.; Villamarin, D.; Vincente, M.C.; Käppeler, F.; Vaz, P.; Jericha, E.; Ventura, A.; Igashira, M.; Terlizzi, R.; Herrera-Martinez, A.; Vannini, G.; Voss, F.; Guerrero, C.; Tavora, L.; Gunsing, F.; Goverdovski, A.; Gramegna, F.; Heil, M.; Haas, B.; Haight, R.; Furman, W.; Gonzalez-Romero, E.; Goncalves, I.; Ferrant, L.; Ferrari, A.; Ferreira-Marques, R.; Fujiii, K.; Dridi, W.; Duran, I.; Eleftheriadis, C.; Embid-Segura, M.; Domingo-Pardo, C.; Dillmann, I.; David, S.; Cox, J.; Dahlfors, M.; Cortés Rossell, Guillem Pere; Couture, A.; Chiaveri, E.; Colonna, N.; Cennini, P.; Chepel, V.; Rubbia, C.; Rosetti, M.; Plukis, A.; Poch Parés, Agustí; Plag, R.; Plompen, A.; Rauscher, T.; Reifarth, R.; Pretel Sánchez, Carme; Quesada, J.; Pigni, M.T.; Perrot, L.; Pavlopoulos, P.; Papadopoulos, C.; Paradela, C.; Wisshak, K.; Patronis, N.; Pavlik, A.; O'Brien, S.; Pancin, J.; Papachristodoulou, C.; Mosconi, M.; Moreau, C.; Oberhummer, H.; Walter, S.; Neves, F.; Wiescher, M. (2009-10-08)
      Article
      Accés restringit per política de l'editorial
      The 233U(n,f ) cross section has been measured at the white neutron source n TOF in a wide energy range with a dedicated fission ionization chamber. We report here the results from ∼30 meV to 1 MeV neutron energy. ...
    • High-accuracy determination of the 238U/ 235U fission cross section ratio up to ˜ 1 GeV at n_TOF at CERN 

      Paradela, C.; Calviani, Marco; Tarrío, D.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Pretel Sánchez, Carme; Riego Pérez, Albert (2015-02-09)
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      Accés obert
      The U238 to U235 fission cross section ratio has been determined at n_TOF up to ˜1 GeV, with two different detection systems, in different geometrical configurations. A total of four datasets has been collected and compared. ...
    • High-accuracy determination of the neutron flux at n TOF 

      Barbagallo, M.; Guerrero, C.; Tsinganis, A.; Tarrío, D.; Altstadt, S.; Andriamonje, S.; Andrzejewski, J.; Audouin, L.; Bécares, V.; Becvar, F.; Belloni, Fabio; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Hernández-Prieto, A.; Riego Pérez, Albert (2013-12-18)
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      Accés restringit per política de l'editorial
      The neutron flux of the n TOF facility at CERN was measured, after installation of the new spallation target, with four different systems based on three neutron-converting reactions, which represent accepted cross sections ...
    • 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)
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      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 ...