Later on, coincidences were detected also at the Cagliari site, where also two muon telescopes are less than a km far away from each other, and the relative preliminary results have been reported elsewhere. The first detection of coincidences among different telescopes by means of the EEE network was performed at L’Aquila, where the two telescopes of the site were positioned at the closest distance among the telescopes of the network. It is possible to study very high energy cosmic ray showers by means of coincidences between telescopes located all over Italy.
The characteristics of the detector provide a manifold approach to the study of cosmic rays. The students were periodically involved in making efficiency tests in order to check that everything is working correctly. It is very important to determine the efficiency of MRPC for a proper functioning of the detector itself.
