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Ara es mostren els items 30-49 de 267

    • Commissioning of miniBELEN-10A, a moderated neutron counter with a flat efficiency for thick-target neutron yields measurements 

      Mont i Geli, Nil; Tarifeño Saldivia, Ariel Esteban; Fraile, L. M.; Viñals Onsens, Silvia; Perea Martínez, Ángel; Pallàs i Solís, Max; Cortés Rossell, Guillem Pere; Nacher González, Enrique; Taín Enríquez, José Luis; Alcayne Aicua, Víctor; Algora Wesolowsk, Alejandro; Balibrea Correa, Javier; Calviño Tavares, Francisco; Blas del Hoyo, Alfredo de; García Sánchez, Roger (EPJ Web of Conferences, 2023-12-08)
      Article
      Accés obert
      miniBELEN-10A is a modular and transportable moderated neutron counter with a nearly flat detection efficiency up to 8 MeV. The detector was designed to carry out measurements of (a, n) reactions in the context of the ...

    • Commissioning of the BRIKEN beta-delayed neutron detector for the study of exotic neutron-rich nuclei 

      Tolosa-Delgado, Alvaro; Agramunt Ros, Jorge; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2018)
      Comunicació de congrés
      Accés obert
      Beta-delayed neutron emission (Beta-n) is a form of radioactive decay in which an electron, an anti-neutrino and one or more neutrons are emitted. This process arises if the energy window of the decay Q_Beta is greater ...

    • Commissioning of the BRIKEN detector for the measurement of very exotic ß-delayed neutron emitters 

      Tolosa Delgado, Alvaro; Agramunt Ros, Jorge; Taín Enríquez, José Luis; Tarifeño Saldivia, Ariel Esteban; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2019-05-01)
      Article
      Accés obert
      A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-richnuclei. The setup consists of three main parts: a moderated neutron counter, a detection ...

    • Commissionning of the n_TOF-Ph2 facility 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (2010)
      Comunicació de congrés
      Accés obert
      The white spectrum neutron time-of-flight facility n_TOF is operating at CERN since 2001. The neutron beam has a very high instantaneous flux and high resolution in energy and it is delivered in the experimental area ...

    • Conceptual design of a hybrid neutron-gamma detector for study of ß-delayed neutrons at the RIB facility of RIKEN 

      Tarifeño Saldivia, Ariel Esteban; Taín Enríquez, José Luis; Domingo Pardo, César; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Phong, V.H.; Riego Pérez, Albert; Agramunt Ros, Jorge; Algora, A. (2017-04-07)
      Article
      Accés obert
      The conceptual design of the BRIKEN neutron detector at the radioactive ion beam factory (RIBF) of the RIKEN Nishina Center is reported. The BRIKEN setup is a complex system aimed at detecting heavy-ion implants, ß particles, ...

    • Conceptual design of the BRIKEN detector: A hybrid neutron-gamma detection system for nuclear physics at the RIB facility of RIKEN 

      Tarifeño Saldivia, Ariel Esteban; Taín Enríquez, José Luis; Domingo-Pardo, C; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2016-06-16)
      Report de recerca
      Accés obert
      BRIKEN is a complex detection system to be installed at the RIB-facility of the RIKEN Nishina Center. It is aimed at the detection of heavy-ion implants, ß-particles, ¿-rays and ß-delayed neu- trons. The whole detection ...

    • 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
      Accés obert
      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 ...

    • Cross section measurements of 155,157Gd(n,gamma) induced by thermal and epithermal neutrons 

      Mastromarco, M.; Aberle, O.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2019-01-28)
      Article
      Accés obert
      Neutron capture cross section measurements on 155Gd and 157Gd were performed using the time-of-flight technique at the n_TOF facility at CERN on isotopically enriched samples. The measurements were carried out in the n_TOF ...

    • Destruction of the cosmic ¿ -ray emitter Al 26 in massive stars: Study of the key Al 26 (n,p) reaction 

      Lederer-Woods, C.; Woods, Phil J.; Kahl, D.; Aberle, O.; Amaducci, Simone; Andrzejewski, Józef; Audouin, Ludmila; Bacak, Michael; Balibrea-Correa, J.; Barbagallo, Massimo; Becvar, F.; Berthoumieux, Eric; Billowes, J.; Calviño Tavares, Francisco (American Physical Society, 2021-08-01)
      Article
      Accés obert
      The 26 Al ( n , p ) 26 Mg reaction is the key reaction impacting on the abundances of the cosmic ¿ -ray emitter 26 Al produced in massive stars and impacts on the potential pollution of the early solar system with 26 Al ...

    • Detector BELEN para la medida de neutrones retardados por desintegración Beta 

      Riego Pérez, Albert; Cortés Rossell, Guillem Pere; Caballero-Folch, R.; Calviño Tavares, Francisco; Pretel Sánchez, Carme; Batet Miracle, Lluís (2015)
      Text en actes de congrés
      Accés obert
      El experimento DESPEC (DEcay SPECtroscopy) tiene entre sus objetivos el estudio de la emisión de neutrones retardados por desintegración beta. Se ha diseñado construido y puesto a prueba un prototipo de un detector ...

    • Dissemination of data measured at the CERN n TOF facility 

      Dupont, E.; Otuka, N.; Cabellos, O.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (EDP Sciences, 2016)
      Comunicació de congrés
      Accés obert
      The n TOF neutron time-of-flight facility at CERN is used for high quality nuclear data measurements from thermal energy up to hundreds of MeV. In line with the CERN open data policy, the n TOF Collaboration takes actions ...

    • Erratum: 62Ni(n,¿) and 63Ni(n,¿ ) 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 (2015-07-23)
      Article
      Accés restringit per política de l'editorial

    • Evaluation of geometric, scatter and septal penetration components in fan beam collimators using Monte Carlo simulation 

      Cot Sanz, Alberto; Pareto, D; Sempau, J; Bullich, S; Pavia, J; Calviño Tavares, Francisco; Ros, D (IEEE, 2000)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The quantitative analysis of SPECT data requires an accurate determination of the collimator point spread function (PSF). The aim of this work is to characterize the PSFs of fan beam and parallel collimators by using ...

    • Experimental challenges for the Re/Os clock 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2006)
      Text en actes de congrés
      Accés obert
      The stellar neutron capture cross sections of 186Os and 187Os are fundamental for the Re/Os cosmo-chronometer since they are de ning the s-process abundance of 187Os. Subtraction of the s-component from the solar 187Os ...

    • Experimental neutron capture data of 58Ni from the CERN n_TOF facility 

      Žugec, Petar; Barbagallo, Massimo; Colonna, Nicola; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Riego Pérez, Albert (EDP Sciences, 2015)
      Comunicació de congrés
      Accés obert
      The neutron capture cross section of 58Ni was measured at the neutron time of flight facility n_TOF at CERN, from 27 meV to 400 keV neutron energy. Special care has been taken to identify all the possible sources of ...

    • Experimental neutron capture data of 58Ni from the CERN n_TOF facility 

      Zugec, P.; Barbagallo, M.; Colonna, Nicola; Bosnar, D.; Altstadt, S.; Andrzejewski, J.; Audouin, L.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Riego Pérez, Albert (2014-01-09)
      Article
      Accés restringit per política de l'editorial
      The 58Ni(n,γ ) cross section has been measured at the neutron time of flight facility n_TOF at CERN, in the energy range from 27 meV up to 400 keV. In total, 51 resonances have been analyzed up to 122 keV. Maxwellian ...

    • Experimental setup and procedure for the measurement of the 7Be(n,alpha)alpha reaction at n_TOF 

      Cosentino, L.; Musumarra, A.; Barbagallo, Massimo; Calviño Tavares, Francisco; Casanovas, Adria; Cortés Rossell, Guillem Pere; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (2016-09-11)
      Article
      Accés obert
      The newly built second experimental area EAR2 of the n_TOF spallation neutron source at CERN allows to perform (n, charged particles) experiments on short-lived highly radioactive targets. This paper describes a detection ...

    • Experimental setup and procedure for the measurement of the 7Be(n,p)7Li reaction at n_TOF 

      Barbagallo, Massimo; Andrzejewski, Józef; Mastromarco, M.; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2018-04-11)
      Article
      Accés obert
      Following the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron ...

    • Experimental study of the 91Zr(n, gamma ) reaction up to 26 keV 

      Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008-10)
      Article
      Accés restringit per política de l'editorial
      The neutron capture cross sections of the Zr isotopes are relevant to studies in nuclear structure, nuclear astrophysics, and nuclear technology. The valence neutron of 91Zr with respect to the neutron magic nucleus 90Zr ...

    • Experiments with neutron beams for the astrophysical s process 

      Lederer, Claudia; Altstadt, Sebastian; Andrzejewski, Józef; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (Institute of Physics (IOP), 2013)
      Text en actes de congrés
      Accés obert
      Neutron capture cross sections are the key nuclear physics input to study the slow neutron capture process, which is responsible for forming about half of the elemental abundances above Fe. Stellar neutron capture cross ...