The MEV project: A new high-resolution telescope for the Muography of Etna Volcano

The Muography of Etna Volcano (MEV) project aims at developing a high-resolution muon telescope for the muography of the summit area of the Etna volcano. A muon tracking telescope, based on plastic scintillation strips with WLS fibers embedded and photomultipliers readout, was built and tested during 2017. The telescope is composed of three 1 × 1 m2 position sensitive planes and the total angular aperture is about ±45◦, with an angular resolution not exceeding 0.4 msr. During the design of the detector, a special effort was devoted to mechanics and electronics in order to build a detector able to face the harsh conditions at the top of a high mountain. This paper summarizes the features of the first telescope prototype already operating at the top of the Etna volcano and the results of the test phase which lasted from January to July 2017.