26 research outputs found

    Some aspects of cylindrical solutions in Brans-Dicke gravity

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    Several points regarding cylindrical Brans-Dicke geometries are studied. The issue of particle trajectories for the vacuum cylindrical solution is revisited. The possible particular nature of a global string metric is analysed. The general form of the junction conditions for matching cylindrical solutions within this theory is written down, and the relation with the general relativity limit is discussed.Comment: 7 page

    Experimental and theoretical Compton profiles of Be, C and Al

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    The results of Compton profile measurements, Fermi momentum determinations, and theoretical values obtained from a linear combination of Slater-type orbital (STO) for core electrons in beryllium; carbon and aluminium are presented. In addition, a ThomasFermi model is used to estimate the contribution of valence electrons to the Compton profile. Measurements were performed using monoenergetic photons of 59.54 keV provided by a low-intensity Am-241 纬-ray source. Scattered photons were detected at 90掳 from the beam direction using a p-type coaxial high-purity germanium detector (HPGe). The experimental results are in good agreement with theoretical calculations.Fil: Aguiar, Julio Cesar. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Autoridad Regulatoria Nuclear; ArgentinaFil: Di Rocco, Hector Omar. Universidad Nacional del Centro de la Provincia de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentin

    41Ca in tooth enamel. part I: A biological signature of neutron exposure in atomic bomb survivors

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    The detection of 41Ca atoms in tooth enamel using accelerator mass spectrometry is suggested as a method capable of reconstructing thermal neutron exposures from atomic bomb survivors in Hiroshima and Nagasaki. In general, 41Ca atoms are produced via thermal neutron capture by stable 40Ca. Thus any 41Ca atoms present in the tooth enamel of the survivors would be due to neutron exposure from both natural sources and radiation from the bomb. Tooth samples from five survivors in a control group with negligible neutron exposure were used to investigate the natural 41Ca content in tooth enamel, and 16 tooth samples from 13 survivors were used to estimate bomb-related neutron exposure. The results showed that the mean 41Ca/Ca isotope ratio was (0.17 卤 0.05) 脳 10-14 in the control samples and increased to 2 脳 10-14 for survivors who were proximally exposed to the bomb. The 41Ca/Ca ratios showed an inverse correlation with distance from the hypocenter at the time of the bombing, similar to values that have been derived from theoretical free-in-air thermal-neutron transport calculations. Given that 纬-ray doses were determined earlier for the same tooth samples by means of electron spin resonance (ESR, or electron paramagnetic resonance, EPR), these results can serve to validate neutron exposures that were calculated individually for the survivors but that had to incorporate a number of assumptions (e.g. shielding conditions for the survivors).Fil: Wallner, A.. Ludwig Maximilians Universitat; Alemania. Universitat Technical Zu Munich; Alemania. Universidad de Viena; AustriaFil: Ruhm, W.. Helmholtz Center Munich German Research Center For Environmental Health; Alemania. Ludwig Maximilians Universitat; AlemaniaFil: Rugel, G.. Ludwig Maximilians Universitat; Alemania. Universitat Technical Zu Munich; AlemaniaFil: Nakamura, N.. Radiation Effects Research Foundation; Jap贸nFil: Arazi, Andres. Universitat Technical Zu Munich; Alemania. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Faestermann, T.. Universitat Technical Zu Munich; AlemaniaFil: Knie, K.. Universitat Technical Zu Munich; Alemania. Ludwig Maximilians Universitat; AlemaniaFil: Maier, H. J.. Ludwig Maximilians Universitat; AlemaniaFil: Korschinek, G.. Universitat Technical Zu Munich; Alemani

    Relationship between 129I and 127I contents in bovine thyroid glands from Argentina

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    129I/127I ratios and iodine concentrations in bovine thyroids stemming from Argentina were determined by accelerator mass spectrometry (AMS) and gas chromatography (GC), respectively. From these measurements, a relationship of the 129I/127I ratio with iodine content in the gland was obtained. A weak correlation between the two isotopes was found, suggesting that 129I re-emission from the ocean is not the only process for the 129I deposition in Argentina. Moreover, contributions to the total 129I inventory in the Southern hemisphere from both natural and anthropogenic sources were theoretically studied. Surface compartments present similar contribution from natural sources and nuclear explosions fallout.Fil: Negri, Agustin Eduardo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Fernandez Niello, Jorge Oscar. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Universidad Nacional de San Mart铆n; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Wallner, A.. Universidad de Viena; AustriaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Steier, P.. Universidad de Viena; Austri

    Application of the accelerator mass spectrometry technique to the study of the marine sediments dynamics

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    Utilizando la t茅cnica de Espectrometr铆a de Masas con Aceleradores se ha determinado la relaci贸n entre el radionucleido 10Be (T陆 = 1,39 Ma) y su is贸topo estable 9Be en siete muestras de sedimentos submarinos. Estas muestras, con relaciones isot贸picas 10Be/9Be del orden de 10^-8, constituyen un primer perfil de 275 m de profundidad cercano al punto de contacto entre las placas tect贸nicas de Nazca, Ant谩rtica y Sudamericana. Debido al decaimiento del 10Be, su concentraci贸n disminuye con la edad del sedimento, la cual se espera que aumente linealmente con la profundidad. Sin embargo, en este trabajo se encontraron aumentos en la concentraci贸n de 10Be entre los 100 y 150 metros y entre los 200 y 250 metros de profundidad. Este resultado es consistente con un proceso de plegamiento de los sedimentos provocado por la subducci贸n de la placa tect贸nica de Nazca.Using the accelerator mass spectrometry technique, the ratio between the radionuclide 10Be (T陆 = 1.39 Ma) and its stable isotope 9 Be in seven submarine sediment samples has been determined. These samples, with 10Be/9 Be isotopic ratios of the order of 10-8, constitute a first 275 m-deep profile near the point where Nazca, Antarctica and South American tectonic plates join each other. Due to the decay of 10Be, its concentration decreases with the age of the sediment, which is expected to increase linearly with the depth. However, in this study we found increments in the 10Be concentration between 100 and 150 meters and between 200 and 250 meters of depth. This result is consistent with a sediments plication process produced by subduction of the Nazca tectonic plate.Fil: Rodrigues Ferreira Maltez, Dario Pablo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Korschinek, G.. Technische Universitat M眉nchen; AlemaniaFil: Merchel, S.. Helmholtz-Zentrum Dresden Rossendorf; AlemaniaFil: Rugel, G.. Helmholtz-Zentrum Dresden Rossendorf; AlemaniaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Mart铆, Guillermo Virginio. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentin

    Understanding the mechanisms of nuclear collisions: A complete study of the B 10 + Sn 120 reaction

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    Background: Reactions involving exotic and stable weakly bound nuclei have been extensively studied in recent years. Although several models have been successfully used to explain particular reaction outcomes, the answers to many questions remain elusive. In previous works, we presented elastic, inelastic, and transfer angular distributions for the B10+Sn120 system measured at ELab=31.5, 33.0, 35.0, and 37.5 MeV. The data set was analyzed through coupled reaction channels calculations in the context of the double-folding S茫o Paulo potential. Purpose: We investigate nuclear reaction mechanisms for systems involving weakly bound projectiles. Method: Angular distributions for several nuclear reaction processes were measured for the B10+Sn120 system at ELab=39.70 MeV. Results: The new data set involves angular distributions for elastic scattering, projectile and target inelastic excitations, one-neutron pickup transfer, one-proton stripping transfer, deuteron pickup transfer, and He3,4 stripping transfer. We have also observed Be10 nuclei. The effect of the couplings to some nonelastic states on the angular distributions is discussed. Conclusion: The theoretical calculations within the coupled reaction channels formalism provide an overall good agreement with the corresponding inelastic, one-neutron stripping, one-proton pickup, one-deuteron pickup, and He3 stripping transfer data. However, to improve the description of the elastic scattering angular distribution, the inclusion of additional channels in the coupling scheme might be necessary.Fil: Gasques, L. R.. Universidade de Sao Paulo; BrasilFil: Alvarez, M. A. G.. Universidad de Sevilla; Espa帽aFil: Arazi, Andres. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Carlson, B. V.. Instituto Tecnol贸gico de Aeron谩utica; BrasilFil: Chamon, L. C.. Universidade de Sao Paulo; BrasilFil: Fern谩ndez Garc铆a, J. P.. Universidad de Sevilla; Espa帽aFil: L茅pine Szily, A.. Universidade de Sao Paulo; BrasilFil: Lubian, J.. Universidade Federal Fluminense; BrasilFil: Rangel, J.. Universidade Federal Fluminense; BrasilFil: Rodr铆guez Gallardo, M.. Universidad de Sevilla; Espa帽aFil: Scarduelli, V.. Universidade de Sao Paulo; BrasilFil: Zagatto, V. A. B.. Universidade Federal Fluminense; Brasi

    Angular distributions of the alpha particle production in the 7Li+144Sm system at near-barrier energies

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    We have studied the production of alpha particles in reactions induced by 7Li projectiles on a 144Sm target at bombarding energies of 18, 24 and 30 MeV over the 15掳-140掳 angular range. The purpose of the investigation has been to determine the contribution of different mechanisms in reactions that involve weakly bound projectiles. We have included in our analysis several processes that can either directly or sequentially lead to the emission of alpha particles: complete fusion, direct transfer of 3H, capture breakup (incomplete fusion, sequential complete fusion) and non-capture breakup. In order to distinguish alpha particles stemming from these processes it is necessary to determine the mass and charge of the reaction products and to obtain precise measurements of their energies and scattering angles over relatively wide ranges of these variables. We have done this using a detection system consisting of an ionization chamber plus three position sensitive detectors. We present results of these measurements and a preliminary interpretation based on kinematical considerations and comparisons with predictions from a statistical model.Fil: Carnelli, Patricio Francisco Florencio. Universidad Nacional de San Mart铆n. Instituto de Investigaci贸n en Ingenier铆a Ambiental; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Capurro, Oscar 脕ngel. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Fernandez Niello, Jorge Oscar. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Universidad Nacional de San Mart铆n. Instituto de Investigaci贸n en Ingenier铆a Ambiental; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Martinez Heimann, Diego. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Universidad Nacional de San Mart铆n. Instituto de Investigaci贸n en Ingenier铆a Ambiental; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Pacheco, Alberto Jorge. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Cardona, Maria Angelica. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: de Barbar谩, Ezequiel. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Figueira, Juan Manuel. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Hojman, Daniel Leonardo. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Mart铆, Guillermo Virginio. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Negri, Agustin Eduardo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Universidad Nacional de San Mart铆n. Instituto de Investigaci贸n en Ingenier铆a Ambiental; Argentin

    One-neutron transfer, complete fusion, and incomplete fusion from the Be 9 + Au 197 reaction

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    In this work, one-neutron transfer (pickup and stripping), complete and incomplete fusion cross sections for the Be9+Au197 system were measured over a wide range of energies around the Coulomb barrier by the offline 纬-ray detection method. Coupled-channel calculations were used to determine the elastic, inelastic, and transfer cross sections. Coupled reaction channel calculations were performed to derive the one-neutron stripping and pickup cross sections. Three-body continuum discretized coupled-channel calculations were used to determine the effect of the breakup channel on the other reaction mechanisms. The reduced complete and total fusion were found to be hindered above and enhanced below the Coulomb barrier compared with the universal fusion function due to the breakup plus transfer effects.Fil: Gollan Scilipotti, Fernando Daniel. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Abriola, Daniel Hugo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Arazi, Andres. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Cardona, Maria Angelica. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: de Barbar谩, Ezequiel. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: de Jes煤s, Joaqu铆n. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Hojman, Daniel Leonardo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Id Betan, Rodolfo Mohamed. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas. Centro Cient铆fico Tecnol贸gico Conicet - Rosario. Instituto de F铆sica de Rosario. Universidad Nacional de Rosario. Instituto de F铆sica de Rosario; ArgentinaFil: Lubian, J.. Universidade Federal Fluminense; BrasilFil: Pacheco, Alberto Jorge. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Paes, B谩rbara. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; ArgentinaFil: Schneider, David Marcelo. Comisi贸n Nacional de Energ铆a At贸mica. Gerencia del 脕rea de Investigaci贸n y Aplicaciones No Nucleares. Gerencia F铆sica (Centro At贸mico Constituyentes). Proyecto Tandar; Argentina. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; ArgentinaFil: Soler, H. O.. Universidade Federal Fluminense; Brasi

    Systematic study of optical potential strengths in reactions on Sn 120 involving strongly bound, weakly bound, and exotic nuclei

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    We present new experimental angular distributions for the elastic scattering of Li6+Sn120 at three bombarding energies. We include these data in a wide systematic involving the elastic scattering of He4,6,Li7, Be9,B10, and O16,18 projectiles on the same target at energies around the respective Coulomb barriers. Considering this data set, we report on optical model analyses based on the double-folding S茫o Paulo potential. Within this approach, we study the sensitivity of the data fit to different models for the nuclear matter densities and to variations in the optical potential strengths.Fil: Alvarez, M. A. G.. Universidad de Sevilla; Espa帽aFil: Fern谩ndez Garc铆a, J. P.. Universidad de Sevilla; Espa帽aFil: Le贸n Garc铆a, J. L.. Universidad de Sevilla; Espa帽aFil: Rodr铆guez Gallardo, M.. Universidad de Sevilla; Espa帽aFil: Gasques, L. R.. Universidade de Sao Paulo; BrasilFil: Chamon, L. C.. Universidade de Sao Paulo; BrasilFil: Zagatto, V. A. B.. Universidade de Sao Paulo; BrasilFil: L茅pine Szily, A.. Universidade de Sao Paulo; BrasilFil: Oliveira, J. R. B.. Universidade de Sao Paulo; BrasilFil: Scarduelli, V.. Universidade Federal Fluminense; BrasilFil: Carlson, B. V.. Instituto Tecnologico de Aeronautica.; BrasilFil: Casal, J.. Istituto Nazionale Di Fisica Nucleare.; ItaliaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica; ArgentinaFil: Torres, D. A.. Universidad Nacional de Colombia; ColombiaFil: Ramirez, F.. Universidad Nacional de Colombia; Colombi

    Supernova-Produced 53Mn on Earth

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    For the time period from 1.5 to 4 Myr before the present we found in deep ocean ferromanganese crusts a Mn53 excess concentration in terms of Mn53/Mn of about 4脳10-14 over that expected for cosmogenic production. We conclude that this Mn53 is of supernova origin because it is detected in the same time window, about 2.5 Myr ago, where Fe60 has been found earlier. This overabundance confirms the supernova origin of that Fe60. For the first time, supernova-formed Mn53 has been detected and it is the second positively identified radioisotope from the same supernova. The ratio Mn53/Fe60 of about 14 is consistent with that expected for a SN with a 11-25 M progenitor mass and solar metallicity.Fil: Korschinek, G.. Universitat Technical Zu Munich; AlemaniaFil: Faestermann, T.. Universitat Technical Zu Munich; AlemaniaFil: Poutivtsev, M.. Universitat Technical Zu Munich; AlemaniaFil: Arazi, Andres. Consejo Nacional de Investigaciones Cient铆ficas y T茅cnicas; Argentina. Comisi贸n Nacional de Energ铆a At贸mica; ArgentinaFil: Knie, K.. Universitat Technical Zu Munich; AlemaniaFil: Rugel, G.. Universitat Technical Zu Munich; Alemania. Helmholtz-Zentrum Dresden Rossendorf; AlemaniaFil: Wallner, A.. Universitat Technical Zu Munich; Alemania. Helmholtz-Zentrum Dresden Rossendorf; Alemani
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