Articles de revista: Enviaments recents

Ara es mostren els items 1-12 de 21

    • Xenon-133 and caesium-137 releases into the atmosphere from the Fukushima Dai-ichi nuclear power plant: Determination of the source term, atmospheric dispersion, and deposition 

      Stohl, Andreas; Seibert, Petra; Wotawa, Gerhard; Arnold Arias, Dèlia; Burkhart, J. F.; Eckhardt, Sabine; Tapia Fernández, Carlos; Vargas Drechsler, Arturo; Yasunari, Teppei J. (2012-03-01)
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      On 11 March 2011, an earthquake occurred about 130 km off the Pacific coast of Japan's main island Honshu, followed by a large tsunami. The resulting loss of electric power at the Fukushima Dai-ichi nuclear power plant ...

    • Methodology for the improvement of the AINA code wall-model applied to DEMO WCPB blanket 

      Fabbri, Marco; Blas del Hoyo, Alfredo de; Riego Pérez, Albert; Dies Llovera, Javier; Zamora Poveda, Imanol; Baeza Pérez, Eduard (2017-11)
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      The present work describes and supports the methodology for the improvement of the wall model devel-oped in AINA and its specific application to the Japanese DEMO Water Cooled Pebbled Bed. The set-upand application of this ...

    • Measurement of the 238 U ( n , gamma ) cross section up to 80 keV with the Total Absorption Calorimeter at the CERN n_TOF facility 

      Wright, T.; Guerrero, C.; Billowes, J.; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Gómez Hornillos, María Belén; Hernández Prieto, Álvaro; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (AMER PHYSICAL SOC, 2017-12-01)
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      The radiative capture cross section of a highly pure (99.999%), 6.125(2) grams and 9.56(5) 10-4 atoms/barn areal density 238-U sample has been measured with the Total Absorption Calorimeter (TAC) in the 185 m flight path ...

    • 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)
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      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, ...

    • First evidence of multiple ß-delayed neutron emission for isotopes with A > 100 

      Caballero-Folch, R.; Dillmann, I.; Agramunt Ros, Jorge; Tan, J.L.; Domingo Pardo, César; Äystö, J.; Calviño Tavares, Francisco; Canete, L.; Eronen, T.; Ganioglu, E.; Gelletly, W.; Gorelov, D.; Guadilla, V.; Hakala, J.; Jokinen, A.; Kankainen, A.; Kolhinen, V.S.; Koponen, J.; Marta, M.; Mendoza Cembrano, Emilio; Montaner Piza, A.; Moore, I.; Nobs, Ch.; Orrigo, S.; Penttila, H.; Pohjalainen, I.; Reinikainen, J.; Riego Pérez, Albert; Rinta-Antila, S.; Rubio, B.; Salvador Castiñeira, Paula Genoveva; Simutkin, V.; Voss, A.; Cortés Rossell, Guillem Pere (2017-03-01)
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      The beta-delayed neutron emission probability, P-n, of very neutron-rich nuclei allows us to achieve a better understanding of the nuclear structure above the neutron separation energy, S-n. The emission of neutrons can ...

    • A new code for spectrometric analysis for environmental radiological surveillance on monitors focused on gamma radioactivity on aerosols 

      Blas del Hoyo, Alfredo de; Riego Pérez, Albert; García Sánchez, Roger; Tapia Fernández, Carlos; Dies Llovera, Javier; Toral, Juan; Batalla, Enric; Díaz Bayona, Pedro (2016-06)
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      This paper presents a new code for the analysis of gamma spectra generated by an equipment for continuous measurement of gamma radioactivity in aerosols with paper ¿lter. It is called pGamma and has been developed by the ...

    • 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)
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      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) ...

    • 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)
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      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 ...

    • Development and assessment of fire-related risk unavailability matrices to support the application of the maintenance rule in a PWR nuclear power plant 

      Díaz Bayona, Pedro; Estruch Traveria, Enric; Dies Llovera, Javier; Tapia Fernández, Carlos; Blas del Hoyo, Alfredo de; Asamoah, Matthew (2016-06-17)
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      Two methods are presented which serve to incorporate the fire-related risk into the current practices in nuclear power plants with respect to the assessment of configurations. The development of these methods is restricted ...

    • Results of the RAMI analyses performed for the IFMIF accelerator facility in the engineering design phase 

      Bargalló Font, Enric; Arroyo Macias, José Manuel; Abal López, Javier; Dies Llovera, Javier; Blas del Hoyo, Alfredo de; Tapia Fernández, Carlos; Moya, Joaquin; Ibarra Sanchez, Angel (2015-10-01)
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      This paper presents a summary of the RAMI (Reliability Availability Maintainability Inspectability) analyses done for the IFMIF (International Fusion Materials Irradiation Facility) Accelerator facility in the Engineering ...

    • Characterization of a neutron-beta counting system with beta-delayed neutron emitters 

      Agramunt Ros, Jorge; Taín Enríquez, José Luis; Gómez Hornillos, María Belén; Calviño Tavares, Francisco; Cortés Rossell, Guillem Pere; Pretel Sánchez, Carme; Riego Pérez, Albert; Tarifeño Saldivia, Ariel Esteban (2016-01-21)
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      A new detection system for the measurement of beta-delayed neutron emission probabilities has been characterized using fission products with well known ß-delayed neutron emission properties. The setup consists of BELEN-20, ...

    • Outage Key Safety Functions Configuration risk assessment for a three loops Westinghouse PWR 

      Martínez Cid, Manel; Dies Llovera, Javier; Tapia Fernández, Carlos; Díaz Bayona, Pedro (2015-09-01)
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      The methodology developed provides guidance on the use of Probabilistic Safety Assessment (PSA) for the risk-informed evaluation of Guides which ensure the compliment of Outage Key Safety Functions (OKSFs) in Nuclear Power ...