What question did this study set out to answer?

The aim is to improve material characterization for muon chambers and explore new technologies for detector upgrades.

March 5, 2026Open Access

A Study of Materials Used for Muon Chambers at the CMS Experiment at the LHC: Interaction with Gas, New Materials and New Technologies for Detector Upgrade

Key Points

The aim is to improve material characterization for muon chambers and explore new technologies for detector upgrades.
Conducted detailed studies on CMS RPC gas filters
Characterized purifier materials over three years of data collection
Developed a stable monitoring setup (GGM) for RPC muon chamber
Designed, built, and tested a new large-scale detector using innovative technologies
Achieved complete characterization of RPC gas filters
Introduced a monitoring setup significantly enhancing detector performance
Established a world's record size for the new detector considered for CMS upgrade

Abstract

This thesis lays its foundation in both technological and theoretical studies carried out between several aspects of applied engineering. There are several original contributions within the material science. The first is the detailed studies about the CMS RPC gas filters, which required an intense 3 years data-taking and ended up with a complete characterization of purifier materials. On top of this a stable ad-hoc setup (GGM) has been developed for the CMS Experiment in order to monitor the RPC muon chamber working point. Finally a complete new detector has been designed, build and tested using new technology and new electronics establishing the word's record in size for this kind of detector, which is taken under consideration for the upgrade of the high-⌘ region of the CMS Experiment.

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