Abstract
The MURAVES (MUon RAdiography of VESuvius) project is a joint activity participated by INGV, INFN and the Universities of Naples “Federico II” and Florence. The collaboration, following the experience gained within the previous INFN R&D project Mu-Ray, is currently completing the production of a robust four square meter low power consumption detector to be installed on the flank of Mount Vesuvius, an active volcano located on the western coast of Italy. The detector is supposed to collect data for at least one year, thus allowing performing a scan of the structure of the Vesuvius volcanic cone. In this work the status of the project and some parallel activities on muon radiography are presented.
Highlights
The muon radiography technique, based on the measurement of the absorption degree of cosmic ray muons while traversing a material volume under investigation, was exploited for the first time in 1955 to determine the overburden of rock above a mountain tunnel [1]
Following the Alvarez experience recently muon absorption radiography was again taken into consideration, at first by Japanese groups [3] and later by European, Canadian, Mexican and other groups (e.g. [4,5,6,7,8]), to be applied in the fields of Volcanology, Mining and Archaeology
The Mu-Ray hodoscope is the basic system adopted for the MURAVES project, whose main goal is to validate muon radiography as a new tool in the field of Volcanology, by applying this technique to the study of Mount Vesuvius near Naples in Italy, one of the most dangerous active volcanoes in the world due to the sub-plinian behavior of its eruptions together with the massive urbanization of the surrounding areas
Summary
Started in 2009 that led to the design of a rugged muon hodoscope based on plastic scintillators and low power electronics, optimized for muon radiography in inhospitable environments. The Mu-Ray hodoscope is the basic system adopted for the MURAVES project, whose main goal is to validate muon radiography as a new tool in the field of Volcanology, by applying this technique to the study of Mount Vesuvius near Naples in Italy, one of the most dangerous active volcanoes in the world due to the sub-plinian behavior of its eruptions together with the massive urbanization of the surrounding areas. According to the new data analysis [10], a large dense body seems to be located just below the Vesuvius crater, down to 2 km depth. This result is in agreement with an older interpretation based on seismic data.
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