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Listar por autor "López Gutiérrez, José María"
Mostrando ítems 1-20 de 30
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Artículo
10Be low-energy AMS with the passive absorber technique
Scognamiglio, Grazia; Lachner, J.; Chamizo Calvo, Elena; López Gutiérrez, José María; Priller, A. (ScienceDirect, 2019-01)The passive absorber technique is one of the most common ways to suppress the 10B interference during 10Be measurements ...
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Ponencia
129I, 236U, 239Pu and 240Pu profiles in a peatbog from the Southern Hemisphere
Chamizo, E.; López Gutiérrez, José María; Holm, Elis; García-Tenorio García-Balmaseda, Rafael (2016)129I, 236U, 239Pu and 240Pu isotopes have been analyzed in the different layers of a peatbog core collected ...
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Tesis Doctoral
41CA measurement with low energy accelerator mass spectrometry (leams) at the Centro Nacional de Aceleradores.
Vivo Vilches, Carlos (2018-09-28)The accelerator mass spectrometry (AMS) technique, developed 40 years ago for 14C dating, was soon used to measure other ...
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Artículo
AMS measurements of 129I in seawater around Iceland and the Irminger Sea
Gómez Guzmán, José Manuel; Villa Alfageme, María; Le Moigne, Frederic; López Gutiérrez, José María; García León, Manuel (ScienceDirect, 2013-01)Large amounts of iodine-129 were, and still are, released into the environment from nuclear facilities, in particular from ...
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Artículo
Analysis of 236U and plutonium isotopes, 239,240Pu, on the 1 MV AMS system at the Centro Nacional de Aceleradores, as a potential tool in oceanography
Chamizo Calvo, Elena; López Lora, Mercedes; Villa Alfageme, María; Casacuberta, N.; López Gutiérrez, José María; Pham, Mai Khanh (ScienceDirect, 2015-10-15)The performance of the 1 MV AMS system at the CNA (Centro Nacional de Aceleradores, Seville, Spain) for 236U and 239,240Pu ...
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Artículo
Anthropogenic 129I concentration and 129I/127I ratio in rainwater from Seville (Spain) in the period 2005–2008 as affected by airborne releases from Sellafield and La Hague facilities
Gómez Guzmán, José Manuel; Enamorado Báez, Santiago Miguel; Pinto Gómez, Alonso Ramón; Abril Hernández, José María; López Gutiérrez, José María; García León, Manuel (Elsevier, 2012)129I is a very long-lived radionuclide (T1/2 = 15.7 × 106 years) that is present in the environment both because of natural ...
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Tesis Doctoral
Aplicación de la espectrometría de masas con aceleradores a la determinación de radionúclidos de semivida grande en la naturaleza
López Gutiérrez, José María (1999-05-28)La detección de radionúclidos de periodo de semidesintegración grande en muestras ambientales es interesante, entre otras ...
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Artículo
Ca-41 measurements on the 1 MV AMS facility at the Centro Nacional de Aceleradores (CNA, Spain)
Vivo Vilches, Carlos; López Gutiérrez, José María; García León, Manuel; Vockenhuber, Christof; Walczyk, Thomas (ScienceDirect, 2017-12-15)We present a detailed study of the performance parameters for 41Ca measurements at the 1 MV AMS system at the Centro ...
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Artículo
Determination of denudation rates by the measurement of meteoric 10Be in Guadiana river sediment samples (Spain) by low-energy AMS
Padilla, S.; López Gutiérrez, José María; Sampath, D.M.R.; Boski, T.; Nieto, J. M.; García León, Manuel (ScienceDirect, 2018-09)The concentration of meteoric 10Be in estuarine sediment samples has been measured by Spanish Accelerator for Radionuclides ...
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Artículo
Estimating the impact from Fukushima in Southern Spain by I-131 and Accelerator Mass Spectrometry detection of I-129
Gómez Guzmán, José Manuel; López Gutiérrez, José María; García-Tenorio García-Balmaseda, Rafael; Agulló, L.; Peruchena, Juan Ignacio; Manjón Collado, Guillermo; García León, Manuel (ScienceDirect, 2017-01)After the Fukushima accident, large amounts of radionuclides were discharged to the atmosphere. Some of them travelled ...
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Artículo
Factors related to 41K interference on 41Ca AMS measurements
Vivo Vilches, Carlos; López Gutiérrez, José María; García León, Manuel; Vockenhuber, Christof (ScienceDirect, 2019-01)Dealing with the 41K interference during 41Ca measurement with low energy AMS systems is challenging. The detection of 39K ...
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Artículo
I+D para detectar isótopos de difícil medida
López Gutiérrez, José María; Chamizo Calvo, Elena; Gómez Guzmán, José Manuel; Peruchena, Juan Ignacio; Ortega-Feliú, Inés; Jiménez Ramos, María del Carmen; Leganés Nieto, José Luis (Empresa Nacional de Residuos Radioactivos, ENRESA, 2012)Desde que el Centro Nacional de Aceleradores (CNA) abriera sus puertas en 1997, los investigadores españoles cuentan con ...
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Artículo
Influence of releases of 129I and 137Cs from European reprocessing facilities in Fucus vesiculosus and seawater from the Kattegat and Skagerrak areas
Gómez Guzmán, José Manuel; Holm, E.; Niagolova, N.; López Gutiérrez, José María; Pinto Gómez, A. R.; Abril, J. A.; García León, Manuel (ScienceDirect, 2014-08)129I is a very long-lived radionuclide (T1/2 = 15.7 × 106 years) that is present in the environment because of natural and ...
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Artículo
Long-lived radionuclides in residues from operation and decommissioning of nuclear power plants
López Gutiérrez, José María; Gómez Guzmán, José Manuel; Chamizo Calvo, Elena; Peruchena, Juan Ignacio; García León, Manuel (ScienceDirect, 2013-01)Radioactive residues, in order to be classified as Low-Level Waste (LLW), need to fulfil certain conditions; the limitation ...
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Tesis Doctoral
Medida de 129I en el Sistema de Espectrometría de Masas con Aceleradores de 1 MV del Centro Nacional de Aceleradores : Aplicación a problemas medioambientales.
Gómez Guzmán, José Manuel (2010)La Memoria que desarrollamos a continuación consta de seis capítulo, cuyo contenido se discute a continuación. En el ...
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Tesis Doctoral
Medidas de 10Be y 26Al en espectrometría de masas con acelerador de baja energía en el Centro Nacional de Aceleradores
Padilla Domínguez, Santiago (2015-11-19)Los radionucleidos cosmogénicos de periodo de semidesintegración grande se encuentran en la naturaleza a niveles traza, ...
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Artículo
Meteoric 10Be in aerosol filters in the city of Seville
Padilla, S.; López Gutiérrez, José María; Manjón Collado, Guillermo; García-Tenorio García-Balmaseda, Rafael; Galván, J.A.; García León, Manuel (ScienceDirect, 2019-01)Cosmogenic radionuclides in the one-million-year half-life range, like 10Be, find application fields in several Sciences. ...
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Artículo
Natural and artificial radionuclides in a marine core. First results of 236U in North Atlantic Ocean sediments
Villa Alfageme, María; Chamizo Calvo, Elena; Santos Arévalo, Francisco Javier; López Gutiérrez, José María; Gómez Martínez, Isabel; Hurtado Bermúdez, Santiago José (ScienceDirect, 2018-06)There are very few data available of 236U in marine sediment cores. In this study we present the results from the first ...
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Artículo
New insights on the role of sea ice in intercepting atmospheric pollutants using 129I
Gómez Guzmán, José Manuel; Cámara Mor, P.; Suzuki, Tomonari; López Gutiérrez, José María; Mas Balbuena, José Luis; Masqué, Pere; Moran, S.B.; Smith, J.N. (ScienceDirect, 2015-12-15)Abstract Measurements of 129I carried out on sea ice samples collected in the central Arctic Ocean in 2007 revealed ...
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Tesis Doctoral
Optimization of 10Be and 26Ai detection with low-energy accelerator mass spectrometry.
Scognamiglio, Grazia (2017-07-07)