IOP : Ecological transition for the gas mixtures of the MRPC cosmic ray telescopes of the EEE Project

Ripoli, C.; Taiuti, M.; Lombardo, L.; Mulliri, A.; Pellegrino, C.; Grazzi, S.; Nozzoli, F.; Noferini, F.; Vistoliz, C.; Mazziotta, M.N.; Paoletti, R.; Mandaglio, G.; Maron, G.; Liu, Z.; Panetta, M.P.; De Gruttola, D.; Hatzifotiadou, D.; Scapparone, E.; Avanzini, C.; Garbini, M.; Sartorelli, G.; Coccia, E.; Galante, L.; Schioppa, M.; Williams, M.C.S.; Carnesecchi, F.; Cifarelli, L.; Pinto, C.; Palmonari, F.; Ferroli, R. Baldini; Trifirò, A.; Votano, L.; Parvis, M.; Rizzi, M.; Margotti, A.; Pinazza, O.; Zuyeuski, R.; Coccetti, F.; Selvi, M.; Zichichi, A.; Abbrescia, M.; Corvaglia, A.; Battaglieri, M.; Batignani, G.; Trimarchi, M.; Perasso, L.; Cicalò, C.; Terreni, G.; Panareo, M.; Righini, G.; Boi, S.; Riggi, F.; Baldini, L.; Scribanoz, A.; Scioli, G.; De Pasquale, S.; La Rocca, P.; Nania, R.; Bossini, E.; Pisano, S.; Gnesi, I.; Cavazza, D.

doi:10.1088/1748-0221/19/03/C03060

Article
Report number	arXiv:2309.17375
Title	Ecological transition for the gas mixtures of the MRPC cosmic ray telescopes of the EEE Project
Author(s)	Ripoli, C. (Salerno U. ; INFN, Naples) ; Abbrescia, M. (Bari Polytechnic ; INFN, Bari ; Bari U.) ; Avanzini, C. (Pisa U.) ; Baldini, L. (Pisa U.) ; Ferroli, R. Baldini (Frascati) ; Batignani, G. (Pisa U.) ; Battaglieri, M. (INFN, Genoa) ; Boi, S. (Cagliari U. ; INFN, Cagliari) ; Bossini, E. (Pisa U.) ; Carnesecchi, F. (CERN) ; Cavazza, D. (Salerno U.) ; Cicalò, C. (INFN, Cagliari) ; Cifarelli, L. (Bologna U. ; INFN, Bologna) ; Coccetti, F. (Enrico Fermi Ctr., Rome) ; Coccia, E. (GSSI, Aquila) ; Corvaglia, A. (Salento U. ; INFN, Lecce) ; De Gruttola, D. (Salerno U. ; INFN, Naples) ; De Pasquale, S. (Salerno U. ; INFN, Naples) ; Galante, L. (Polytech. Turin) ; Garbini, M. (Enrico Fermi Ctr., Rome ; INFN, Bologna) ; Gnesi, I. (Enrico Fermi Ctr., Rome ; INFN, Cosenza) ; Grazzi, S. (Messina U. ; INFN, Genoa) ; Hatzifotiadou, D. (INFN, Bologna ; CERN) ; La Rocca, P. (Catania U. ; INFN, Catania) ; Liu, Z. (World Lab., Geneva) ; Lombardo, L. (Turin Polytechnic) ; Mandaglio, G. (Messina U. ; INFN, Catania) ; Margotti, A. (INFN, Bologna) ; Maron, G. (INFN, Legnaro ; Padua U.) ; Mazziotta, M.N. (INFN, Bari ; Bari U.) ; Mulliri, A. (Cagliari U. ; INFN, Cagliari) ; Nania, R. (INFN, Bologna) ; Noferini, F. (INFN, Bologna) ; Nozzoli, F. (TIFPA-INFN, Trento) ; Palmonari, F. (Bologna U. ; INFN, Bologna) ; Panareo, M. (INFN, Lecce ; Salento U.) ; Panetta, M.P. (Salento U. ; INFN, Lecce) ; Paoletti, R. (Messina U. ; Pisa U.) ; Parvis, M. (Turin Polytechnic) ; Pellegrino, C. (INFN, CNAF) ; Perasso, L. (INFN, Genoa) ; Pinazza, O. (INFN, Bologna) ; Pinto, C. (Munich, Tech. U.) ; Pisano, S. (Enrico Fermi Ctr., Rome ; Frascati) ; Riggi, F. (Catania U. ; INFN, Catania) ; Righini, G. (Florence U. ; INFN, Florence) ; Rizzi, M. (INFN, Bari ; Bari U.) ; Sartorelli, G. (Bologna U. ; INFN, Bologna) ; Scapparone, E. (Salerno U.) ; Schioppa, M. (Calabria U. ; INFN, Cosenza) ; Scioli, G. (Bologna U. ; Salerno U.) ; Scribanoz, A. (INFN, Naples ; Pisa U.) ; Selvi, M. (INFN, Bologna) ; Taiuti, M. (Genoa U. ; INFN, Genoa) ; Terreni, G. (Pisa U.) ; Trifirò, A. (Messina U. ; INFN, Catania) ; Trimarchi, M. (Messina U. ; INFN, Catania) ; Vistoliz, C. (INFN, Bari ; Bari U.) ; Votano, L. (Gran Sasso) ; Williams, M.C.S. (CERN ; World Lab., Geneva) ; Zichichi, A. (Enrico Fermi Ctr., Rome ; Bologna U. ; INFN, Bologna ; CERN ; World Lab., Geneva) ; Zuyeuski, R. (World Lab., Geneva ; CERN)
Publication	2024-03-27
Imprint	2023-09-29
Number of pages	5
In:	JINST 19 (2024) C03060
DOI	10.1088/1748-0221/19/03/C03060
Subject category	physics.ins-det ; Detectors and Experimental Techniques ; hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment	EEE
Abstract	The Extreme Energy Events (EEE) Collaboration is fully involved in an ecological transition. The use of the standard gas mixture, \ce{C_2H_2F_4}+ \ce{SF_6}, has stopped in favor of an alternative green mixture based on \ce{C_3H_2F_4} with the addition of He or \ce{CO_2}. The choise of these new mixtures is motivated by the significant lower Global Warming Potential (GWP) to reduce the emission of gases potentially contributing to the greenhouse effect. The EEE experiment consists of 61 muon telescopes based on Multigap Resistive Plate Chambers (MRPCs), each telescope composed of 3 chambers filled with gas. Several EEE detectors are today completely fluxed with the new ecological mixture. This contribution will report recent results about the telescope performance obtained from studies with the eco-friendly alternative mixture carried out in the last years.
Copyright/License	preprint: (License: CC BY-NC-ND 4.0) publication: © 2024 The Author(s) (License: CC-BY-4.0)