Browsing by Subject "Radioactivitat"

Now showing items 1-10 of 10

    • Anion Exclusion in PFLOTRAN: Development and Reactive Transport Simulations 

      Bruch Molist, Paula (Universitat Politècnica de Catalunya, 2021-11-01)
      Master thesis
      Restricted access - author's decision
      The Swedish Nuclear Fuel and Waste Management Company (SKB) [1] is in charge of dealing safely with all the radioactive waste from nuclear power plants in Sweden. In 2009 Forsmark (Sweden) was selected to build the spent ...

    • Cylindrical geometry: a further step in active microwave tomography 

      Broquetas Ibars, Antoni; Jofre Roca, Lluís; Cardama Aznar, Ángel; Elias Fusté, Antoni; Rius Casals, Juan Manuel; Romeu Robert, Jordi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1991-05-01)
      Article
      Open Access
      A prototype imaging system for active microwave tomography using cylindrical geometry has been developed, making it possible to obtain images of the dielectric properties of biological targets at 2.45 GHz. This configuration ...

    • Equipment for the continuous measurement and identification of gamma radioactivity on aerosols 

      Blas del Hoyo, Alfredo de; Toral, Juan; Tapia Fernández, Carlos; Riego Pérez, Albert; García Sánchez, Roger; Dies Llovera, Javier; Batalla, Enric; Díaz Bayona, Pedro (2016-06)
      Article
      Open Access
      This paper describes an equipment for continuous measurement and identification of gamma radioactivity in aerosols developed by the Nuclear Engineering Research Group (NERG) at the Technical University of Catalonia (UPC) ...

    • Inter-islands optical link tests 

      Comerón Tejero, Adolfo; Bará Temes, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1990-05-01)
      Article
      Open Access
      Free-space optical communication systems between satellites and also between a satellite and a ground station foreseen in Europe in the mid-1990's require far-field on-ground experimentation prior to launch. To identify ...

    • Measurement of 139-La(n,gamma) cross section 

      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
      We measured the neutron capture cross section of 139La relative to 197Au in the energy range of 0.6 eV to 9 keV at n_TOF, the neutron time-of-flight facility at CERN. After a description of the experimental apparatus, ...

    • Measurement of 139-La(n,gamma) Cross Section at n_TOF 

      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
      The capture cross section of the 139La has been measured relative to 197Au standard at n_TOF. We provide here a short description of the experimental apparatus and of the data analysis procedures. The extracted resonance ...

    • 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 ...

    • Quantitative images of large biological bodies in microwave tomography by using numerical and real data 

      Mallorquí Franquet, Jordi Joan; Joachimowicz, N.; Broquetas Ibars, Antoni; Bolomey, J. C. (Jean-Charles) (IEE-INST ELEC ENG, 1996-11-01)
      Article
      Open Access
      A new inverse microwave imaging algorithm is presented which has the ability to obtain quantitative dielectric maps of large biological bodies. By using a priori information, obtained with a first order algorithm, the final ...

    • Study of COTS devices in ionizing radiation environments 

      Sebastià Bellobí, Oriol (Universitat Politècnica de Catalunya, 2023-06-27)
      Bachelor thesis
      Open Access
      Covenantee:   Spenvis
      The exposure to elevated radiation levels in space poses significant risks to spacecraft, space stations or satellites. Therefore, it is crucial to assess these risks associated with prolonged radiation exposure during any ...

    • The presence of radionuclides in wastewater treatment plants in spain and their effect on human health 

      Montaña Gurrera, Montserrat; Camacho García, Antonia; Devesa, Ricard; Valles Murciano, M. Isabel; Cespedes, R.; Serrano Carreño, M. Isabel; Blázquez Pérez, Sonia M.; Barjola Molina, Vanessa (2013-12-01)
      Article
      Restricted access - publisher's policy
      Wastewater treatment facilities can produce sludge containing measurable amounts of radioactivity. The radionuclides that are concentrated may originate from radionuclides present in the original source of water or from ...