17–24 Jul 2024
Prague
Europe/Prague timezone

Performance of eco-friendly alternative gas mixtures in CMS iRPC detector in the HL-LHC environment

19 Jul 2024, 19:00
2h
Foyer Floor 2

Foyer Floor 2

Poster 12. Operation, Performance and Upgrade (incl. HL-LHC) of Present Detectors Poster Session 2

Speaker

Joao Pinheiro (Universidade do Estado do Rio de Janeiro (BR))

Description

The RPC detectors in the CMS experiment operate with a gas mixture made of 95.2% C2H2F4, known to be a greenhouse gas. Several eco-friendly alternatives to C2H2F4, such as HFO, have been studied in the last few years in order to find an alternative mixture with low Global-Warming Potential (GWP), while maintaining the performance of the RPC chambers. Another way to improve the RPC standard gas mixture GWP, could be replacing between 30% and 40% of the C2H2F4 with CO2. Studies of Eco-gas and CO2 based mixtures are carried out at the CERN Gamma Irradiation Facility (GIF++), where the LHC Phase-2 conditions are mimicked by a 13.6TBq radiation source and a muon beam. This poster presents the performance of a 1.4 mm gap RPC chamber with several alternative gas mixtures in a high gamma background environment, as well as future perspectives of aging studies.

Alternate track 18. Sustainability (accelerators, detectors, computing)
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Primary authors

Cecilia Uribe Estrada (Autonomous University of Puebla (MX)) Joao Pinheiro (Universidade do Estado do Rio de Janeiro (BR))

Co-authors

Dayron Ramos Lopez (Universita e INFN, Bari (IT)) Dalia Lucero Ramirez Guadarrama (Universidad Iberoamericana (MX)) Mapse Barroso Ferreira Filho (Universidade do Estado do Rio de Janeiro (BR)) Sandro Fonseca De Souza (Universidade do Estado do Rio de Janeiro (BR))

Presentation materials