Now showing items 381-400 of 794

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      Macroscopic pairing vibrational model, self-consistent pairing coupling constant, and the fifth term of von Weizs ̈ acker’s semiempirical formula  [Article]

      Dasso, Carlos Hugo; Gallardo Fuentes, María Isabel (American Physical Society, 2006-07-20)
      The implementation of a number-conserving formalism for pair-addition and pair-removal modes has impaired the possibility of developing an intuitive and self-consistent picture for collective pairing modes. In this paper, ...
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      Mean-field and two-body nuclear effects in inclusive electron scattering on argon, carbon, and titanium: The superscaling approach  [Article]

      Barbaro, M. B.; Caballero Carretero, Juan Antonio; Pace, Arturo de; Donnelly, Thomas W.; González Jiménez, Raúl; Megías Vázquez, Guillermo Daniel (American Physical Society, 2019)
      We compare the predictions of the superscaling approach (SuSAv2) model including two-particle two-hole meson-exchange currents with the recent JLab data for inclusive electron scattering on three different targets (C, Ar, ...
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      Measurement and analysis of the 241Am(n,γ ) cross section with liquid scintillator detectors using time-of-flight spectroscopy at the n_TOF facility at CERN  [Article]

      Fraval, K.; Gunsing, F.; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Barbagallo, M.; Cortés Giraldo, Miguel Antonio; Praena Rodríguez, Javier; Quesada Molina, José Manuel; Sabaté Gilarte, Marta (American Physical Society, 2014)
      The 241Am(n,γ ) cross section has been measured at the n_TOF facility at CERN using deuterated benzene liquid scintillators, commonly known as C6D6 detectors, and time-of-flight spectrometry. The results in the ...
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      Measurement and analysis of the 243 Am neutron capture cross section at the n_TOF facility at CERN  [Article]

      Mendoza, Emilio; Cano-Ott, D.; Guerrero Sánchez, Carlos; Berthoumieux, E.; Abbondanno, U.; Aerts, G.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel; Wisshak, K. (American Physical Society, 2014)
      Background: The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Improvement of the Am243(n,γ) cross section uncertainty. ...
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      Measurement and resonance analysis of the 237Np neutron capture cross section  [Article]

      Guerrero Sánchez, Carlos; Cano-Ott, D.; Mendoza, Emilio; Abbondanno, U.; Aerts, G.; Álvarez Velarde, F.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel; Wisshak, K. (American Physical Society, 2012)
      The neutron capture cross section of 237Np was measured between 0.7 and 500 eV at the CERN n-TOF facility using the 4π BaF2 Total Absorption Calorimeter. The experimental capture yield was extracted minimizing all the ...
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      Measurement and resonance analysis of the 33S(n,α) 30Si cross section at the CERN n_TOF facility in the energy region from 10 to 300 keV  [Article]

      Praena Rodríguez, Javier; Sabaté Gilarte, Marta; Porras, I.; Quesada Molina, José Manuel; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Bécares, Vicente; Cortés Giraldo, Miguel Antonio; Guerrero Sánchez, Carlos; Lerendegui Marco, Jorge (American Physical Society, 2018-06-04)
      The 33S(n,α) 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,α) 7 Li cross-section standard. Both reactions ...
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      Measurement of 208 Pb ( n , γ ) 209 Pb Maxwellian averaged neutron capture cross section  [Article]

      Weissmann, L.; Tessler, M.; Arenshtam, A.; Eliyahu, I.; Halfon, Shlomi; Guerrero Sánchez, Carlos; Kaizer, B.; Kijel, D. (American Physical Society, 2017)
      The doubly magic 208Pb nucleus is a bottleneck at the termination of the s-process path due to its very low neutron capture cross section. This cross section is also important for the decomposition ofs,r processes and ...
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      Measurement of a 2D fast-ion velocity distribution function by tomographic inversion of fast-ion D-alpha spectra  [Article]

      Salewski, M.; Geiger, B.; Jacobsen, A.S.; García Muñoz, Manuel; Heidbrink, W. W.; Korsholm, S.B.; Leipold, F.; Madsen, J.; Moseev, D.; Nielsen, S K (OP Publishing, 2014)
      We present the first measurement of a local fast-ion 2D velocity distribution function f(v||, v⊥). To this end, we heated a plasma in ASDEX Upgrade by neutral beam injection and measured spectra of fast-ion Dα (FIDA) light ...
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      Measurement of fragmentation cross sections of 12C ions on a thin gold target with the FIRST apparatus  [Article]

      Toppi, M.; Abou-Haidar, Z.; Agodi, C.; González Álvarez, Marcos Aurelio; Aumann, T.; Balestra, F.; Patera, V.; Cortés Giraldo, Miguel Antonio; Fernández García, Juan Pablo (American Physical Society, 2016)
      A detailed knowledge of the light ions interaction processes with matter is of great interest in basic and applied physics. As an example, particle therapy and space radioprotection require highly accurate fragmentation ...
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      Measurement of resolved resonances of 232Th(n, γ) at the n_TOF facility at CERN  [Article]

      Gunsing, F.; Berthoumieux, E.; Aerts, G.; Abbondanno, U.; Álvarez, H.; Álvarez Velarde, F.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel; Wisshak, K. (American Physical Society, 2012)
      The yield of the neutron capture reaction 232Th(n,γ) has been measured at the neutron time-of-flight facility n-TOF at CERN in the energy range from 1 eV to 1 MeV. The reduction of the acquired data to the capture yield ...
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      Measurement of the 12 C(n,p)12 B cross section at n-TOF at CERN by in-beam activation analysis  [Article]

      Žugec, P.; Colonna, Nicola; Bosnar, D.; Mengoni, A.; Altstadt, Sebastian G.; Andrzejewski, J.; Wright, T.; Cortés Giraldo, Miguel Antonio; Praena Rodríguez, Javier; Quesada Molina, José Manuel (American Physical Society, 2014)
      The integral cross section of the 12C(n,p)12B reaction has been determined for the first time in the neutron energy range from threshold to several GeV at the n-TOF facility at CERN. The measurement relies on the activation ...
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      Measurement of the 151 Sm( n ,γ ) cross section from 0.6 eV to 1 MeV via the neutron time-of-flight technique at the CERN n TOF facility  [Article]

      Capote, Roberto; Lozano Leyva, Manuel Luis; Molina-Coballes, Alberto; Quesada Molina, José Manuel; Marrone, S.; Abbondanno, U.; Aerts, G.; Álvarez Velarde, F. (American Physical Society, 2006-03-17)
      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 ...
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      Measurement of the 235U(n, f) cross section relative to the 6Li(n, t) and 10B(n, α) standards from thermal to 170 keV neutron energy range at n_TOF  [Article]

      Armaducci, S.; Cosentino, L.; Barbagallo, M.; Colonna, N.; Mengoni, A.; Massimi, C.; Lo Meo, Sergio; Finocchiaro, P.; Chiaveri, Enrico; Cortés Giraldo, Miguel Antonio; Guerrero Sánchez, Carlos; Lerendegui Marco, Jorge; Quesada Molina, José Manuel; Sabaté Gilarte, Marta (Springer Nature, 2019-07-01)
      The 235U(n, f) cross section was measured at n_TOF relative to 6Li(n, t) and 10B(n,α) , with high resolution (L= 183. 49 (2) m) and in a wide energy range (25meV-170keV) with 1.5% systematic uncertainty, making use of a ...
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      Measurement of the 236U(n,f) cross section from 170 meV to 2 MeV at the CERN n_TOF facility  [Article]

      Sarmento, Raul; Calviani, M.; Praena Rodríguez, Javier; Colonna, Nicola; Belloni, F.; Gonçalves, I. F.; Wisshak, K.; Capote, Roberto; Lozano Leyva, Manuel Luis; Quesada Molina, José Manuel (American Physical Society, 2011)
      The neutron-induced fission cross section of 236U was measured at the neutron Time-of-Flight (n-TOF) facility at CERN relative to the standard 235U(n,f) cross section for neutron energies ranging from above thermal to ...
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      Measurement of the 240Pu(n,f) cross-section at the CERN n-TOF facility: First results from experimental area II (EAR-2)  [Article]

      Stamatopoulos, A.; Tsinganis, Andrea; Colonna, Nicola; Vlastou, R.; Kokkoris, M.; Schillebeeckx, Peter; Plompen, Arjan J. M.; Heyse, Jan; Ugec, P.; Cortés Giraldo, Miguel Antonio; Guerrero Sánchez, Carlos; Palomo Pinto, Rogelio; Praena Rodríguez, Javier; Quesada Molina, José Manuel; Sabaté Gilarte, Marta (EDP Sciences, 2017)
      The accurate knowledge of the neutron-induced fission cross-sections of actinides and other isotopes involved in the nuclear fuel cycle is essential for the design of advanced nuclear systems, such as Generation-IV nuclear ...
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      Measurement of the 241Am neutron capture cross section at the n-TOF facility at CERN  [Article]

      Mendoza, Emilio; Cano-Ott, D.; Altstadt, Sebastian G.; Andriamonje, S.; Andrzejewski, J.; Audouin, Laurent; Balibrea, J.; Bécares, Vicente; Barbagallo, M.; Bečvář, František; Belloni, F.; Cortés Giraldo, Miguel Antonio (EDP Sciences, 2017)
      New neutron cross section measurements of minor actinides have been performed recently in order to reduce the uncertainties in the evaluated data, which is important for the design of advanced nuclear reactors and, in ...
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      Measurement of the 70Ge(n,γ) cross section up to 300 keV at the CERN n_TOF facility  [Article]

      Gawlik, A.; Lederer-Woods, Claudia; Andrzejewski, J.; Battino, Umberto; Ferreira, P.; Gunsing, F.; Heinitz, S.; Krtiˇcka, M.; Massimi, C.; Mingrone, F.; Perkowski, J.; Reifarth, René; Tattersall, A.; Cortés Giraldo, Miguel Antonio; García, A. R.; Domingo Pardo, César; Mendoza, E.; Wolf, C.; Woods, P. J.; Wright, T.; Žugec, P. (American Physical Society, 2019)
      Neutron capture data on intermediate mass nuclei are of key importance to nucleosynthesis in the weak component of the slow neutron capture processes, which occurs in massive stars. The (n,γ) cross section on 70Ge, which ...
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      Measurement of the angular distribution of fission fragments using a PPAC assembly at CERN n-TOF  [Article]

      Tarrío, D.; Leong, L. S.; Audouin, Laurent; Duran, I.; Paradela, C.; Tassan-Got, L.; Le Naour, C.; Bacri, C.O.; Petitbon, V.; Cortés Giraldo, Miguel Antonio; Quesada Molina, José Manuel; Žugec, P.; Praena Rodríguez, Javier (Elsevier, 2014)
      A fission reaction chamber based on Parallel Plate Avalanche Counters (PPACs) was built for measuring angular distributions of fragments emitted in neutron-induced fission of actinides at the neutron beam available at the ...
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      Measurement of the Li8 half-life  [Article]

      Fléchard, Xavier; Liénard, Etienne; Naviliat-Cuncic, Oscar; Rodríguez, Daniel M.; González Álvarez, Marcos Aurelio; Ban, Gilles; Carnio, Benjamin; Etasse, David; Fontbonne, Jean Marc; Lallena Rojo, Antonio Miguel; Praena Rodríguez, Javier (American Physical Society, 2010)
      We report a new measurement of the Li8 half-life using a plastic scintillator and an ultrafast waveform digitizing module. The result, T1/2=(838.40±0.36)ms, improves by a factor of 2.5 the most precise result obtained so ...
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      Measurement of the neutron capture cross section of the fissile isotope 235U with the CERN n-TOF total absorption calorimeter and a fission tagging based on micromegas detectors  [Article]

      Balibrea, J.; Mendoza, Emilio; Cano Ott, Daniel; Krtička, Milan; Altstadt, Sebastian G.; Andrzejewski, J.; Audouin, Laurent; Bécares, Vicente; Barbagallo, M.; Bečvář, František; Cortés Giraldo, Miguel Antonio; Praena Rodríguez, Javier; Quesada Molina, José Manuel (EDP Sciences, 2017)
      The accuracy on neutron capture cross section of fissile isotopes must be improved for the design of future nuclear systems such as Gen-IV reactors and Accelerator Driven Systems. The High Priority Request List of the ...