Measurement of $^{222}Rn$ concentration in recent eruptive products of Mt. Etna volcano by gamma spectrometry.

Rapisarda G.G., Terray L., Giammanco S., Romano S., Costa M., Stefanescu Miralles G. Breton V., Gauthier P.J.
  Giovedì 14/09   09:00 - 13:30   Aula F3 - Maria Telkes   IV - Geofisica e fisica dell'ambiente   Presentazione
Several ash and lava samples from the Mt. Etna 2021/2022 activity have been analyzed by means of gamma-ray spectrometry using the HpGe detector available at the LARA laboratory of INFN-LNS. These measurements aim to the evaluation of the $^{222}Rn$ concentration in the erupted magma samples. The results have shown an interesting disequilibrium within nuclide activities in the $^{238}U$ decay chain. The obtained results together with volcanological inputs can allow us to infer interesting information about the dynamics of gas and magma transfer inside the volcano during the eruption.