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Updated: Jan 20, 2026
Development of Analytical Methods
137Cs contamination in the Adamello glacier: Improving the analytical method
Elena Di Stefano1, Massimiliano Clemenza2, Giovanni Baccolo3
1Physics Department, University Milano-Bicocca, 20126, Milano, Italy; Milano-Bicocca Section, Istituto Nazionale di Fisica Nucleare, 20126, Milano, Italy; Department of Physical, Earth and Environmental Sciences, University of Siena, 53100, Siena, Italy.
Abstract:
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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