Environment and Nuclear Physics: The GEDI Experiment

• Main Authors: E. Bernieri, A. Balerna, A. Esposito, U. Denni, M. Chiti, M.A. Frani, V. Tullio
• Format: Text
• Language: English
• Published: INFN Open Access Repository 2002
• Subjects: ice core
• Online Access: https://dx.doi.org/10.15161/oar.it/1447845114.88; https://www.openaccessrepository.it/record/17509?ln=en

The aim of GEDI (Gamma Emission in Deep Ice) experiment was the realisation of a portable g-ray spectrometer for in situ radioactivity measurements on glaciers and snowfields. This kind of measurements is very useful in a wide set of environmental studies, in particular during glacial drillings for ice core studies and in pollution monitoring in high altitude or in remote areas, were sampling is difficult or impossible. In this paper the instrument realised and its performances on the field are described in detail.The results of the first measurements performed on the Appennini and Himalaya range, showing the presence in the snow of small amounts of the artificial radioisotope 137Cs, are also reported and discussed.