137Cs contamination in the Adamello glacier: Improving the analytical method

An alpine ice core, extracted from the Adamello glacier (Central Italian Alps), was analyzed in its entire length through low background γ-spectroscopy, for the detection of 137Cs. Our results show that in glacier ice 137Cs is tightly bound to insoluble particulate matter inside the ice core, and it...

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Bibliographic Details
Published in:Journal of Environmental Radioactivity
Main Authors: Di Stefano, Elena, Clemenza, Massimiliano, Baccolo, Giovanni, Delmonte, Barbara, Maggi, Valter
Other Authors: Di Stefano, E, Clemenza, M, Baccolo, G, Delmonte, B, Maggi, V
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Ltd 2019
Subjects:
137
C
Adamello glacier
Alpine ice core
γ-spectroscopy
gamma- spectroscopy
137C
FIS/07 - FISICA APPLICATA (A BENI CULTURALI
AMBIENTALI
BIOLOGIA E MEDICINA)
FIS/04 - FISICA NUCLEARE E SUBNUCLEARE
ice core
Online Access:http://hdl.handle.net/10281/241051
https://doi.org/10.1016/j.jenvrad.2019.106039
https://www.sciencedirect.com/science/article/pii/S0265931X19302280
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Summary:An alpine ice core, extracted from the Adamello glacier (Central Italian Alps), was analyzed in its entire length through low background γ-spectroscopy, for the detection of 137Cs. Our results show that in glacier ice 137Cs is tightly bound to insoluble particulate matter inside the ice core, and it is therefore possible to restrict γ-spectroscopy analysis to particulate matter only. We show how the sensibility of the detection limit can be improved by almost one order of magnitude by using a well-type detector instead of a coaxial one. Hypothesis on the dating of some radioactive layers are also hereby presented.

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