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.
Di Stefano, E., Clemenza, M., Baccolo, G., Delmonte, B., Maggi, V. (2019). 137Cs contamination in the Adamello glacier: Improving the analytical method. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY, 208-209 [10.1016/j.jenvrad.2019.106039].
137Cs contamination in the Adamello glacier: Improving the analytical method
Baccolo, Giovanni;
2019-01-01
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
