Now showing items 41-60 of 100

  • Measurement of the Sm-151(n,gamma) cross section from 0.6 eV to 1 MeV via the neutron time-of-flight technique at the CERN n_TOF facility 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006-03)
    Article
    Restricted access - publisher's policy
    The 151Sm(n, γ ) cross section was measured with the time-of-flight technique from 0.6 eV up to 1 MeV relative to the Au standard with an overall uncertainty of typically 6%. Neutrons were produced by spallation at the ...
  • Measurements of 90,91,92,93,94,96-Zr neutron capture cross sections at the n_TOF facility at CERN 

    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. In particular they play a key role in ascertaining the neutron density in the He burning zone of the ...
  • 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 ...
  • Measurements of the 90,91,92,94,96Zr neutron capture cross-section at n_TOF 

    Cortés Rossell, Guillem Pere; Calviño Tavares, Francisco; Poch Parés, Agustí; Pretel Sánchez, Carme (2006-06)
    Article
    Open Access
    The neutron capture cross sections of 90,91,92,94,96Zr, which play a key role for the determination of the neutron density in the He burning zone of the Red Giant stars, were measured over the energy range from 1 eV to ...
  • Measurements of the 90,91,92,94,96-Zr(n, gamma) cross-sections at n TOF 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (Elsevier Science Publishers B.V. NORTH HOLLAND, 2004)
    Article
    Open Access
    Neutron capture cross sections of the 90,91,92,94,96Zr have been measured over the energy range from 1 eV to 1 MeV at the spallation neutron facility n TOF at CERN in 2003. The innovative features of the neutron beam, in ...
  • Measurements of the 90,91,92,94,96Zr(n,g) cross-sections at n_TOF 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2005-07)
    Article
    Restricted access - publisher's policy
    Neutron capture cross sections of the 90,91,92,94,96Zr have been measured over the energy range from 1 eV to 1 MeV at the spallation neutron facility n TOF at CERN in 2003. The innovative features of the neutron beam, in ...
  • Monte Carlo simulations for the study of a moderated neutron detector 

    Gómez Hornillos, María Belén; Gorlychev, V.; Caballero Folch, Roger; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme; Calviño Tavares, Francisco (2011-08-12)
    Article
    Open Access
    This work presents the Monte Carlo simulations performed with the MCNPX and GEANT4 codes for the design of a BEta deLayEd Neutron detector, BELEN-20. This detector will be used for the study of beta delayed neutron emission ...
  • Neutron capture cross section measurements at n_TOF of 237Np, 240Pu, 243Am, for the transmutation of nuclear waste 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006-03-13)
    Article
    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 ...
  • Neutron Capture Cross Section Measurements at n_TOF of 237Np, 240Pu and 243Am for the Transmutation of Nuclear Waste 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (American Institute of Physics (AIP), 2005)
    Conference report
    Restricted access - publisher's policy
    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 ...
  • Neutron capture cross section measurements for nuclear astrophysics at CERN n TOF 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (Elsevier Science Publishers B.V. NORTH HOLLAND, 2004)
    Article
    Restricted access - publisher's policy
    A series of neutron capture cross section measurements of interest to nuclear astrophysics have been recently performed at n TOF, the neutron spallation source operating at CERN. The low repetition frequency of the proton ...
  • Neutron capture cross section measurements for nuclear astrophysics at CERN n_TOF 

    Lopes, I.; Rudolf, G.; Lorusso, G.; Pretel Sánchez, Carme; Milazzo, P.M.; Benlliure, J.; Koehler, P.; Abbondanno, U.; Konovalov, V.; Aerts, G.; Krticka, M.; Álvarez-Velarde, F.; Lamboudis, C.; Alvarez-Pol, H.; Leeb, H.; Andriamonje, S.; Lindote, A.; Andrzejewski, J.; Baumann, P.; Becvar, F.; Ketlerov, V.; Kerveno, M.; Karadimos, D.; Kadi, Y.; Herrera-Martinez, A.; Herrera-Martinez, A.; Haight, Y.; Heil, M.; Kappeler, F.; Isaev, S.; Jericha, E.; Griesmaye, E.; Haas, B.; Gunsing, F.; Gallino, R.; Gonzalez-Romero, E.; Goverdovski, A.; Gramegna, F.; Ferreira-Marques, R.; Frais-Koelbl, H.; Furman, W.; Goncalves, I.; Ferrari, A.; Ferrant, L.; Embid-Segura, M.; Domingo-Pardo, C.; Duran, I.; David, S.; Dolfini, R.; Dababneh, S.; Dahlfors, N.; Couture, A.; Cox, J.; Poch Parés, Agustí; Wisshak, K.; Wiescher, M.; Vlachoudis, V.; Voss, F.; Plompen, A.; Wendler, H.; Ventura, A.; Villamarin, D.; Vincente, M.C.; Terlizzi, R.; Papaevangelou, T.; Vaz, P.; Vannini, G.; Cortés Rossell, Guillem Pere; Colonna, N.; Cennini, P.; Tassan-Got, L.; Chiaveri, E.; Tavora, L.; Chepel, V.; Tain, J.L.; Capote, R.; Rosetti, N.; Cano-Ott, D.; Reifarth, R.; Calviño Tavares, Francisco; Tagliente, G.; Badurek, G.; Berthoumieux, E.; Cortina, D.; Stephan, C.; Soares, J.C.; Rapp, W.; Salgado, J.; Rullhusen, P. (2005-07)
    Article
    Restricted access - publisher's policy
    A series of neutron capture cross section measurements of interest to nuclear astrophysics have been recently performed at n TOF, the neutron spallation source operating at CERN. The low repetition frequency of the proton ...
  • Neutron capture cross section measurements for nuclear astrophysics at n_TOF 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006)
    Conference report
    Open Access
    The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source with a flight path of 187.5m. Intense proton bunches fromthe CERN PS with an energy of 20 GeV, an intensity of 7×1012 protons per pulse, ...
  • Neutron capture cross section of 232Th measured at the n TOF facility at CERN in the unresolved resonance region up to 1 MeV 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Poch Parés, Agustí (2006-03)
    Article
    Restricted access - publisher's policy
    We have measured the neutron capture reaction yield of 232Th at the neutron time-of-flight facility n TOF at CERN in the energy range from 1 eV to 1 MeV. The average capture cross section has been extracted in the energy ...
  • Neutron capture cross section of (90)Zr: bottleneck in the s-process reaction flow 

    Tagliente, G.; Fujii, K.; Milazzo, P.M.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme (2008-03-11)
    Article
    Restricted access - publisher's policy
    The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than ...
  • Neutron Capture cross section of 90Zr: Bottleneck in the s-process reaction flow 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008-03-11)
    Article
    Open Access
    The neutron capture cross sections of the Zr isotopes have important implications in nuclear astrophysics and for reactor design. The small cross section of the neutron magic nucleus 90Zr, which accounts for more than ...
  • Neutron capture measurement on the s-process termination isotopes lead and bismuth 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006)
    Conference report
    Open Access
    Resonance cross sections relevant for the termination of the s-process reaction path have been determined for 204,206,207Pb and 209Bi at the CERN neutron time-of-flight spectrometer n_TOF. Themeasurementswere carried out ...
  • Neutron capture measuremetns on minor actinides at the n_TOF facility at CERN: past, present and future 

    Cano Ott, Daniel; Colonna, Nicola; Tagliente, G.; Belloni, Fabio; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2011-08-12)
    Article
    Restricted access - publisher's policy
    The successful development of advanced nuclear systems for sustainable energy production and nuclear waste management depends on high quality nuclear data libraries. Recent sensitivity stud- ies and reports [1-3] have ...
  • Neutron cross section measurements at n_TOF for ADS related estudies 

    Cortés Rossell, Guillem Pere; Calviño Tavares, Francisco; Poch Parés, Agustí; Pretel Sánchez, Carme (2006)
    Article
    Open Access
    A neutron Time-of-Flight facility (n_TOF) is available at CERN since 2001. The innovative features of the neutron beam, in particular the high instantaneous flux, the wide energy range, the high resolution and the low ...
  • Neutron cross section measurements at n-TOF for ADS related studies 

    Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (IOP Publishing. Institute of Physics, 2005)
    Conference report
    Open Access
    A neutron Time-of-Flight facility (n_TOF) is available at CERN since 2001. The innovative features of the neutron beam, in particular the high instantaneous flux, the wide energy range, the high resolution and the low ...