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 gamma-spectroscopy, for the detection of Cs-137. Our results show that in glacier ice Cs-137 is tightly bound to insoluble particulate matter inside the ice core,...

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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
Format: Article in Journal/Newspaper
Language:English
Published: 2019
Subjects:
(137)C
Adamello glacier
Alpine ice core
γ-spectroscopy
ice core
Online Access:https://hdl.handle.net/11590/468651
https://doi.org/10.1016/j.jenvrad.2019.106039
Description
Summary:An alpine ice core, extracted from the Adamello glacier (Central Italian Alps), was analyzed in its entire length through low background gamma-spectroscopy, for the detection of Cs-137. Our results show that in glacier ice Cs-137 is tightly bound to insoluble particulate matter inside the ice core, and it is therefore possible to restrict gamma-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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