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,...
Published in: | Journal of Environmental Radioactivity |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
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Subjects: | |
Online Access: | https://hdl.handle.net/11590/468651 https://doi.org/10.1016/j.jenvrad.2019.106039 |
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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