What does this research mean for the field?

The chemical analyses of materials used in the CMS RPC muon detector reveal important insights into the performance of the Closed Loop recirculation gas system. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to analyze the materials involved in the CERN Closed Loop gas system for RPC muon detectors.

March 5, 2026Open Access

Chemical Analyses of Materials Used in the CMS RPC Muon Detector

Key Points

The study aims to analyze the materials involved in the CERN Closed Loop gas system for RPC muon detectors.
Conducted a sampling campaign in a low-radiation environment at CERN
Performed chemical analysis on filters and gases used in the system
Executed dedicated tests on RPC chambers
Identified key chemical properties of materials used in the detector
Noted performance characteristics of the Closed Loop gas system
Discussed implications of findings for future RPC detector operations

Abstract

Results are reported on a study of materials used in the CERN Closed Loop recirculation gas system presently under test with the RPC muon detectors in the CMS experiment at the LHC. Studies include a sampling campaign in a low-radiation environment (cosmic rays at the CERN ISR test site). We describe the dedicated RPC chamber tests, the chemical analysis of the filters and gas used, and discuss the results of the Closed Loop system.

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