Browsing by Author "Calviani, Marco"

Now showing items 1-12 of 12

    • 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
      Restricted access - publisher's policy
      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 ...

    • Advances and new ideas for neutron-capture astrophysics experiments at CERN n_TOF 

      Domingo Pardo, César; Babiano Suárez, Víctor; Balibrea Correa, Javier; Lerendegui Marco, Jorge; Taín Enríquez, José Luis; Tarifeño Saldivia, Ariel; Aberle, O.; Alcayne Aicua, Víctor; Amaducci, Simone; Andrzejewski, Józef; Calviño Tavares, Francisco; Calviani, Marco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Cosentino, Luigi; Dressler, Rugard (Springer Nature, 2023-01-01)
      Article
      Open Access
      This article presents a few selected developments and future ideas related to the measurement of (n,¿) data of astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for the use of low-efficiency radiation ...

    • 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
      Restricted access - publisher's policy
      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 ...

    • Constraints on the dipole photon strength for the odd uranium isotopes 

      Berthoumieux, Eric; Dupont, Emmeric; Gunsing, Frank; Serot, Olivier; Aberle, O.; Alcayne Aicua, Víctor; Amaducci, Simone; Andrzejewski, Józef; Audouin, Ludmila; Bécares, Vicente; Babiano Suárez, Víctor; Bacak, Michael; Barbagallo, Massimo; Billowes, J.; Bosnar, Damir; Caballero Ontanaya, Luis; Calviño Tavares, Francisco; Calviani, Marco; Cano Ott, Daniel; Casanovas Hoste, Adrià; Chiaveri, E.; Colonna, Nicola; Cortés Rossell, Guillem Pere; Cortés Giraldo, Miguel Antonio; Cosentino, Luigi; Cristallo, Sergio; Damone, Lucia Anna; Tarifeño Saldivia, Ariel Esteban (American Physical Society, 2022-02-01)
      Article
      Open Access
      Nuclear level densities (NLDs) and photon strength functions (PSFs), also called ¿ -ray or radiation strength functions, represent average properties of the nucleus in the regime of excitation where individual levels and ...

    • 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)
      Article
      Open Access
      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. ...

    • Integral cross section measurement of the12C(n,p)12B reaction 

      Žugec, Petar; Colonna, Nicola; Bosnar, Damir; Ventura, A.; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Berthoumieux, Eric; Brugger, Matthias; Calviani, Marco; Calviño Tavares, Francisco; Cano Ott, Daniel; Riego Pérez, Albert (2015)
      Conference report
      Open Access
      The integral cross section of the12C(n, p)12B reaction was measured at the neutron time of flight facility nTOF at CERN, from the reaction threshold at 13.6 MeV up to 10 GeV, by means of the combined activation and a ...

    • Measurement of the 242Pu(n,f) cross section at the CERN n TOF facility 

      Tsinganis, A.; Berthoumieux, Eric; Colonna, Nicola; Calviani, Marco; Andriamonje, S.; Gunsing, Frank; Altstadt, Sebastian; Andrzejewski, Józef; Audouin, Ludmila; Barbagallo, Massimo; Bécares, Vicente; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-05-01)
      Article
      Restricted access - publisher's policy
      The accurate knowledge of relevant nuclear data is crucial for the design of advanced nuclear systems. These data include neutron cross sections of various plutonium isotopes and other minor actinides. The 242Pu(n,f) cross ...

    • Measurement of the 72Ge(n,¿) cross section over a wide neutron energy range at the CERN n_TOF facility 

      Dietzel, Martin; Lederer-Woods, C.; Battino, U.; Gunsing, Frank; Lerendegui Marco, J.; Berthoumieux, Eric; Barbagallo, Massimo; Billowes, J.; Calviño Tavares, Francisco; Calviani, Marco; Cortés Rossell, Guillem Pere; Casanovas Hoste, Adrià; Chiaveri, E.; Dressler, Rugard; Dupont, Emmeric; Ferrari, Alessio (American Physical Society, 2021-04-01)
      Article
      Open Access
      The 72 Ge ( n , ¿ ) cross section was measured for neutron energies up to 300 keV at the neutron time-of-flight facility n _ TOF (CERN), Geneva, for the first time covering energies relevant to heavy-element synthesis in ...

    • Measurement of the240Pu(n,f) cross-section at the CERN n-TOF facility: First results from EAR-2 

      Tsinganis, A.; Stamatopoulos, A.; Colonna, Nicola; Vlastou, R.; Barbagallo, Massimo; Berthoumieux, Eric; Calviani, Marco; Andrzejewski, Józef; Audouin, Ludmila; Bécares, Vicente; Bosnar, Damir; Brugger, Matthias; Caamaño, Manuel; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2015)
      Conference report
      Open Access
      The accurate knowledge of neutron cross-sections of a variety of plutonium isotopes and other minor actinides, such as neptunium, americium and curium, is crucial for feasibility and performance studies of advanced nuclear ...

    • The new vertical neutron beam line at the CERN n_TOF facility design and outlook on the performance 

      Weiß, C.; Berthoumieux, Eric; Calviani, Marco; Tsinganis, A.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (2015-07-23)
      Article
      Open Access
      At the neutron Lime-of-flight facility n_TOF at CERN a new vertical beam line was constructed in 2014, in order to extend the experimental possibilities at this facility to an even wider range of challenging cross-section ...

    • The role of Fe and Ni for S-process nucleosynthesis and innovative nuclear technologies 

      Taín Enríquez, José Luis; Lederer, Claudia; Brugger, Matthias; Calviani, Marco; Andriamonje, S.; Ferrari, Alessio; Calviño Tavares, Francisco; Gómez Hornillos, María Belén; Cortés Rossell, Guillem Pere (2011-08-12)
      Article
      Restricted access - publisher's policy
      The accurate measurement of neutron capture cross sections of all Fe and Ni isotopes is important for disentangling the contribution of the s-process and the r-process to the stellar nucleosynthesis of elements in the mass ...

    • Zr 92 (n,?) and (n,tot) measurements at the GELINA and n_TOF facilities 

      Tagliente, G.; Bécares, Vicente; Calviño Tavares, Francisco; Calviani, Marco; Cano Ott, Daniel; Colonna, Nicola; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Martínez, T.; Mastromarco, Mario; Mendoza, E.; Praena, J.; Riego Pérez, Albert; Lederer, Claudia (American Physical Society, 2022-02-01)
      Article
      Open Access
      Stellar nucleosynthesis of elements heavier than iron is driven by neutron capture processes. Zr92 is positioned at a strategic point along the slow nucleosynthesis path, given its proximity to the neutron magic number ...