The Extreme Energy Events Project is a synchronous sparse array of 52 tracking detectors for stud... more The Extreme Energy Events Project is a synchronous sparse array of 52 tracking detectors for studying High Energy Cosmic Rays (HECR) and Cosmic Rays-related phenomena. The observatory is also meant to address Long Distance Correlation (LDC) phenomena: the network is deployed over a broad area covering 10 degrees in latitude and 11 in longitude. An overview of a set of preliminary results is given, extending from the study of local muon flux dependance on solar activity to the investigation of the upward-going component of muon flux traversing the EEE stations; from the search for anisotropies at the sub-TeV scale to the hints for observations of km-scale Extensive Air Shower (EAS).
The whole Extreme Energy Events (EEE) array is composed of 61 telescopes installed in Italian Hig... more The whole Extreme Energy Events (EEE) array is composed of 61 telescopes installed in Italian High Schools, built and operated by students and teachers, constantly supervised by researchers. The muon telescope of the EEE Project is made by 3 Multigap Resistive Plate Chambers (MRPC). The unconventional working sites are a unique test field for checking the robustness and the low-ageing features of the MRPC technology for particle tracking and timing purposes. The MRPCs are fluxed with a standard mixture (98% C2H2F4 - 2% SF6) of greenhouse gases (GHG) phasing out of production. The EEE Collaboration is currently studying alternative mixtures environmentally and economically sustainable. The EEE Collaboration actions to reduce the Global Warming Potential (GWP) in the MRPC array of the EEE experiment are progressing.
I. Gnesi , M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, G. Bencivenni... more I. Gnesi , M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, G. Bencivenni, E. Bossini, A. Chiavassa , C. Cicalo, L. Cifarelli, F. Coccetti, E. Coccia, A. Corvaglia , D. De Gruttola, S. De Pasquale, A. Di Giovanni, M. D’Incecco, M. Dreucci, F.L. Fabbri, E. Fattibene, A. Ferraro, V. Frolov, P. Galeotti , M. Garbini, G. Gemme, S. Grazzi, C. Gustavino, D. Hatzifotiadu, F. Liciulli, P. La Rocca, A. Maggiora , O. Maragoto Rodriguez, G. Maron, B. Martelli, M.N. Mazziotta, S. Miozzi, R. Nania, F. Noferini, F. Nozzoli, M. Panareo , M.P. Panetta , R. Paoletti, W. Park, L. Perasso, F. Pilo, G. Piragino , F. Riggi, G.C. Righini, M. Rizzi, G. Sartorelli, E. Scapparone, M. Schioppa, A. Scribano, M. Selvi, S. Serci , E. Siddi, S. Squarcia, L. Stori, M. Taiuti, G. Terreni, O.B.Visnyei, M.C. Vistoli, L. Votano, M.C.S. Williams, S. Zani, A. Zichichi, R. Zuyeuski a Museo Storico della Fisica e Centro Studi e Ricerche E. Fermi, Roma, Italy b INFN and Dipartimento di Fisica Unive...
Due to their efficiency, tracking capabilities and long-term operational conditions, Multigap Res... more Due to their efficiency, tracking capabilities and long-term operational conditions, Multigap Resistive Plate Chambers (MRPC) may be used in a stable location in coincidence with additional detectors fixed to other parts of a civil building, to detect relative displacements of different parts of the building due to long term deformations of the structure. In this contribution we report the results of two different measurements carried out in the Department of Physics and Astronomy of the University of Catania (with three floors above the ground and an underground basement), using one of the MRPC telescopes of the Extreme Energy Events project, in coincidence with two scintillator-based muon telescopes located in various positions inside the building. Experimental results obtained by these measurements campaigns over a period of about three months are reported, together with a discussion about the performance of the technique. The sensitivity of the method is also discussed by means ...
The goal of the PolarquEEEst experiment was to measure the cosmic charged particle rate at latitu... more The goal of the PolarquEEEst experiment was to measure the cosmic charged particle rate at latitudes greater than 66$$^{\circ }$$ ∘ N, where no systematic and accurate measurements at sea level have ever been performed. A latitude range well above the Arctic Circle was explored on board of a sailboat, up to the unprecedented northernmost value of $$82^{\circ }07^{\prime }$$ 82 ∘ 07 ′ N. In this paper a description of the experimental set-up is reported, then the procedures for calibration and data analysis are described in detail. The results show that the rate measured in this latitude range stays constant within a novel accuracy of $$\pm 1$$ ± 1 %.
The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is a... more The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is arguably the largest detector system in the world implemented by Multigap Resistive Plate Chambers. The EEE network consists of 60 telescopes distributed over all the Italian territory; each telescope is made of three MRPCs and allows to reconstruct the trajectory of cosmic muons with high efficiency and optimal angular resolution. A distinctive feature of the EEE network is that almost all telescopes are housed in High Schools and managed by groups of students and teachers, who previously took care of their construction at CERN. This peculiarity is a big plus for the experiment, which combines the scientific relevance of its objectives with effective outreach activities. The unconventional location of the detectors, mainly in standard classrooms of school buildings, with heterogeneous maintenance conditions and without controlled temperature and dedicated power lines, is a unique test fi...
The Extreme Energy Events Project is a synchronous sparse array of 52 tracking detectors for stud... more The Extreme Energy Events Project is a synchronous sparse array of 52 tracking detectors for studying High Energy Cosmic Rays (HECR) and Cosmic Rays-related phenomena. The observatory is also meant to address Long Distance Correlation (LDC) phenomena: the network is deployed over a broad area covering 10 degrees in latitude and 11 in longitude. An overview of a set of preliminary results is given, extending from the study of local muon flux dependance on solar activity to the investigation of the upward-going component of muon flux traversing the EEE stations; from the search for anisotropies at the sub-TeV scale to the hints for observations of km-scale Extensive Air Shower (EAS).
The whole Extreme Energy Events (EEE) array is composed of 61 telescopes installed in Italian Hig... more The whole Extreme Energy Events (EEE) array is composed of 61 telescopes installed in Italian High Schools, built and operated by students and teachers, constantly supervised by researchers. The muon telescope of the EEE Project is made by 3 Multigap Resistive Plate Chambers (MRPC). The unconventional working sites are a unique test field for checking the robustness and the low-ageing features of the MRPC technology for particle tracking and timing purposes. The MRPCs are fluxed with a standard mixture (98% C2H2F4 - 2% SF6) of greenhouse gases (GHG) phasing out of production. The EEE Collaboration is currently studying alternative mixtures environmentally and economically sustainable. The EEE Collaboration actions to reduce the Global Warming Potential (GWP) in the MRPC array of the EEE experiment are progressing.
I. Gnesi , M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, G. Bencivenni... more I. Gnesi , M. Abbrescia, C. Avanzini, L. Baldini, R. Baldini Ferroli, G. Batignani, G. Bencivenni, E. Bossini, A. Chiavassa , C. Cicalo, L. Cifarelli, F. Coccetti, E. Coccia, A. Corvaglia , D. De Gruttola, S. De Pasquale, A. Di Giovanni, M. D’Incecco, M. Dreucci, F.L. Fabbri, E. Fattibene, A. Ferraro, V. Frolov, P. Galeotti , M. Garbini, G. Gemme, S. Grazzi, C. Gustavino, D. Hatzifotiadu, F. Liciulli, P. La Rocca, A. Maggiora , O. Maragoto Rodriguez, G. Maron, B. Martelli, M.N. Mazziotta, S. Miozzi, R. Nania, F. Noferini, F. Nozzoli, M. Panareo , M.P. Panetta , R. Paoletti, W. Park, L. Perasso, F. Pilo, G. Piragino , F. Riggi, G.C. Righini, M. Rizzi, G. Sartorelli, E. Scapparone, M. Schioppa, A. Scribano, M. Selvi, S. Serci , E. Siddi, S. Squarcia, L. Stori, M. Taiuti, G. Terreni, O.B.Visnyei, M.C. Vistoli, L. Votano, M.C.S. Williams, S. Zani, A. Zichichi, R. Zuyeuski a Museo Storico della Fisica e Centro Studi e Ricerche E. Fermi, Roma, Italy b INFN and Dipartimento di Fisica Unive...
Due to their efficiency, tracking capabilities and long-term operational conditions, Multigap Res... more Due to their efficiency, tracking capabilities and long-term operational conditions, Multigap Resistive Plate Chambers (MRPC) may be used in a stable location in coincidence with additional detectors fixed to other parts of a civil building, to detect relative displacements of different parts of the building due to long term deformations of the structure. In this contribution we report the results of two different measurements carried out in the Department of Physics and Astronomy of the University of Catania (with three floors above the ground and an underground basement), using one of the MRPC telescopes of the Extreme Energy Events project, in coincidence with two scintillator-based muon telescopes located in various positions inside the building. Experimental results obtained by these measurements campaigns over a period of about three months are reported, together with a discussion about the performance of the technique. The sensitivity of the method is also discussed by means ...
The goal of the PolarquEEEst experiment was to measure the cosmic charged particle rate at latitu... more The goal of the PolarquEEEst experiment was to measure the cosmic charged particle rate at latitudes greater than 66$$^{\circ }$$ ∘ N, where no systematic and accurate measurements at sea level have ever been performed. A latitude range well above the Arctic Circle was explored on board of a sailboat, up to the unprecedented northernmost value of $$82^{\circ }07^{\prime }$$ 82 ∘ 07 ′ N. In this paper a description of the experimental set-up is reported, then the procedures for calibration and data analysis are described in detail. The results show that the rate measured in this latitude range stays constant within a novel accuracy of $$\pm 1$$ ± 1 %.
The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is a... more The Extreme Energy Events (EEE) experiment, dedicated to the study of secondary cosmic rays, is arguably the largest detector system in the world implemented by Multigap Resistive Plate Chambers. The EEE network consists of 60 telescopes distributed over all the Italian territory; each telescope is made of three MRPCs and allows to reconstruct the trajectory of cosmic muons with high efficiency and optimal angular resolution. A distinctive feature of the EEE network is that almost all telescopes are housed in High Schools and managed by groups of students and teachers, who previously took care of their construction at CERN. This peculiarity is a big plus for the experiment, which combines the scientific relevance of its objectives with effective outreach activities. The unconventional location of the detectors, mainly in standard classrooms of school buildings, with heterogeneous maintenance conditions and without controlled temperature and dedicated power lines, is a unique test fi...
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