Now showing items 1-20 of 80

    • A compact fission detector for fission-tagging neutron capture experiments with radioactive fissile isotopes 

      Bacak, Michael; Aiche, Mourad; Bélier, Gilbert; Berthoumieux, Eric; Diakaki, Maria; Dupont, Emmeric; Gunsing, Frank; Kopecky, Stefan; Calviño Tavares, Francisco; Casanovas Hoste, Adrià; Cortés Rossell, Guillem Pere; Tarifeño Saldivia, Ariel Esteban (2020-04-21)
      Article
      Open Access
      In the measurement of neutron capture cross-sections of fissile isotopes, the fission channel is a source of background which can be removed efficiently using the so-called fission-tagging or fission-veto technique. For ...
    • Angular distribution in the neutron-induced fission of actinides 

      Leong, L.S.; Tassan Got, Laurence; Tarrío, D.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén (EPJ Web of Conferences, 2013)
      Conference report
      Open Access
      Above 1MeV of incident neutron energy the fission fragment angular distribution (FFAD) has generally a strong anisotropic behavior due to the combination of the incident orbital momentum and the intrinsic spin of the ...
    • Application of Photon Strength Functions to (n,gamma) measurements with the n_TOF TAC 

      Guerrero, Carlos; Abbondanno, U.; Aerts, G.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Poch, Agustí (PoS - Proceedings of Science, 2018)
      Conference report
      Open Access
      The neutron capture cross section measurements at the CERN n_TOF facility are performed using a new detection system, the segmented Total Absorption Calorimeter (TAC). All measurements are performed in reference to the ...
    • Astrophysics at n-TOF facility 

      Tagliente, G.; Colonna, Nicola; Marrone, S.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Poch Parés, Agustí; Pretel Sánchez, Carme (2008)
      Conference report
      Open Access
      The neutron time of flight (n_TOF) facility at CERN is a neutron spallation source, its white neutron energy spectrum ranges from thermal to several GeV, covering the full energy range of interest for nuclear astrophysics, ...
    • Astrophysics at n-TOF facility at CERN 

      Tagliente, G.; Abbondanno, U.; Aerts, G.; Calviño Tavares, Francisco; Pretel Sánchez, Carme (Institute of Physics (IOP), 2010)
      Conference report
      Open Access
      The neutron time of flight (n_TOF) facility at CERN is a spallation neutron source with white neutron energy spectrum (from thermal to several GeV), covering the full energy range of interest for nuclear astrophysics, in ...
    • Beta-decay spectroscopy of S-27 

      José Pont, Jordi (American Physical Society (APS), 2019-06-10)
      Article
      Open Access
    • Charm photoproduction results from NA14' 

      Álvarez, M.P.; Barate, R.; Calviño Tavares, Francisco (Springer, 1988)
      Conference report
      Open Access
      High statistics samples of reconstructed charmed particles have been obtained by the NA14' experiment. Signals are presented in a variety of decay channels, and are used for the measurement of lifetimes and the study of ...
    • Commissioning of the BRIKEN detector for the measurement of very exotic ß-delayed neutron emitters 

      Tolosa Delgado, Alvaro; Agramunt Ros, Jorge; Taín, J.L.; Tarifeño Saldivia, Ariel Esteban; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere (2019-05-01)
      Article
      Restricted access - publisher's policy
      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 ...
    • 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
      Open Access
      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 ...
    • Desarrollo de un circuito de acondicionamiento para la operación del dosímetro de neutrones LINrem en modo corriente 

      Mercadé De Luna, María (Universitat Politècnica de Catalunya, 2020-05-20)
      Bachelor thesis
      Open Access
      Este proyecto se ha realizado dentro del grupo ANT (Advanced Nuclear Technologies) de investigación de la UPC, en la línea de la instrumentación nuclear. Particularmente, el proyecto se engloba dentro de la aplicación de ...
    • Development and validation of a simplified tritium migration simulation tool for its dynamics monitoring at ITER 

      Sojo Gordillo, Jose Manuel (Universitat Politècnica de Catalunya, 2018-04-27)
      Master thesis
      Open Access
      El TFM se enmarca en un proyecto R&D del CDTI con la empresa PROCON SYSTEMS, la UPC y el IQS (URL). Uno de los objetivos del proyecto Demostración Prototípica de Sistemas de Control, Adquisición de Datos, Monitorización ...
    • Disseny del circuit de condicionament del senyal generat per un detector de centelleig 

      Prat Baucells, Jordi (Universitat Politècnica de Catalunya, 2020-05-20)
      Bachelor thesis
      Restricted access - author's decision
      Aquest projecte consisteix en el disseny, construcció i proba del divisor de tensió i d’un preamplificador sensible a la tensió que condicioni els polsos generats per un detector de centelleig produïts per la radiació ...
    • Elaboration of the TDR for the BELEN Detector 

      Torner Carrion, Aleix (Universitat Politècnica de Catalunya, 2013-11)
      Master thesis (pre-Bologna period)
      Open Access
      El projecte final de carrera descrit a continuació tracta sobre l’elaboració del Technical Design Report (TDR) o document tècnic de disseny del detector de neutrons BELEN concebut i desenvolupat a la UPC. És necessari ...
    • Enhanced gamma-ray emission from neutron unbound states populated in beta decay 

      Tain, J. L.; Valencia, E.; Algora, A.; Rubio, B.; Maurice, S.; Gelletly, W.; Fallot, M.; Rissanen, J.; Eronen, T.; Äystö, J.; Batist, L.; Bowry, M.; Caballero Folch, Roger; Gómez Hornillos, María Belén; Gorlychev, V.; Mendoza, E.; Moore, I.; Penttila, H.; Reponen, M.; Sonnenschein, V. (2015-08-06)
      Article
      Open Access
    • Enhancing the sensitivity and robustness of label-free imaging systems via stimulated Raman adiabatic passage 

      León Montiel, R.D.J.; Pérez Torres, Juan (2012-01)
      Article
      Restricted access - publisher's policy
      We show that the sensitivity and robustness of a label-free optical imaging technique based on stimulated Raman scattering (SRS) can be enhanced by using resonant optical transitions in a Raman adiabatic passage scheme. ...
    • Estudi de la detecció del Xenó en les explosions nuclears subterrànies 

      Sansaloni Florit, Francesc (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2009-12)
      Master thesis
      Open Access
      El 9 d’octubre del 2006 Corea del Nord dugué a terme una prova nuclear. Les estacions de vigilància del CTBTO (Comprensive Nuclear Test Ban Treaty Organization) van detectar aquesta explosió mitjançant la xarxa de vigilància ...
    • Estudio con MCNPX de un módulo de prueba de la envoltura regeneradora de tritio para el reactor ITER 

      Juárez Mañas, Rafael (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2009-09-01)
      Master thesis
      Restricted access - author's decision
      En el estudio presente se exponen una serie de experiencias reunidas del intento de establecer una metodología de traducción de geometrías generadas con CATIA a archivos de inputs reconocibles por MCNPX. En concreto, se ...
    • Existence loci of bound states in the continuum in the parameter space of anisotropic planar structures 

      Mukherjee, Samyobrata; Gomis Bresco, Jordi; Pujol Closa, Maria del Pilar; Artigas García, David; Torner Sabata, Lluís (Optical Society of American (OSA), 2019)
      Conference lecture
      Open Access
      Bound states in the continuum (BICs), first predicted in the field of quantum physics [1], are localized radiationless states existing in the part of the spectrum that corresponds to radiative modes. BICs are a general ...
    • Experimental determination of the activity of a 252Cf source 

      Caballero Folch, Roger (Universitat Politècnica de Catalunya / Universitat de Barcelona, 2011-06)
      Master thesis
      Open Access
      An important research line in nuclear physics nowadays is the study of unstable nuclei. Within this, one area of interest is the study of delayed neutron emission which is of relevance for di erent elds such as astrophysics, ...
    • 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
      Open Access
      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 ...