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Título
Precise 210Pb determination with high-efficiency gamma spectrometry for dating of marine sedimentary cores
Autor(es)
Palabras clave
Pb-dating
Gamma spectrometry
HPGe detector
Clasificación UNESCO
2202.05 Rayos Gamma
251090-1 Geología Marina. Dinámica Sedimentaria
Fecha de publicación
2020
Editor
Elsevier
Citación
Pedrosa García, M. C., Fontanela, M., Quintana, B., Pérez, F., Francés, G., & Marcos, T. (2020). Precise 210Pb determination with high-efficiency gamma spectrometry for dating of marine sedimentary cores. Applied Radiation and Isotopes, 156. https://doi.org/10.1016/j.apradiso.2019.108962
Resumen
[EN]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
URI
ISSN
0969-8043
DOI
10.1016/j.apradiso.2019.108962
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