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Título: | Precise 210Pb determination with high-efficiency gamma spectrometry for dating of marine sedimentary cores |
Autor: | Pedrosa, M. C.; Fontela, Marcos CSIC ORCID; Quintana, M.; Pérez, Fiz F. CSIC ORCID ; Francés, Guillermo; Marcos, T. | Palabras clave: | 210Pb-dating Gamma spectrometry HPGe detector |
Fecha de publicación: | 2020 | Editor: | Elsevier | Citación: | Applied Radiation and Isotopes 156: 108962 (2020) | Resumen: | In order to establish the chronology of deep-sea sediments from high-resolution 210Pb-dating, the determination of 210Pb and 226Ra activity concentrations needs to be improved. Gamma spectrometry allows determining simultaneously both radionuclides. However, spectrum background is still an issue to obtain high sensitivity. Four deep-sea sediment cores were dated using Mazinger, a gamma spectrometer with high-efficiency and very low-background, and the Constant Rate and Supply model was applied to obtain recent ages | Descripción: | 7 pages, 5 figures, 3 tables | Versión del editor: | https://doi.org/10.1016/j.apradiso.2019.108962 | URI: | http://hdl.handle.net/10261/196680 | DOI: | 10.1016/j.apradiso.2019.108962 | ISSN: | 0969-8043 | E-ISSN: | 1872-9800 |
Aparece en las colecciones: | (IIM) Artículos |
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Precise_210Pb_determination_2020.pdf | 296,18 kB | Adobe PDF | Visualizar/Abrir |
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