Construction of the first full-size GEM-based prototype for the CMS high-$\eta$ muon system

TL;DR

This paper reports the design and construction of the largest Triple-GEM detector prototype for the CMS high-eta muon system, demonstrating advancements in detector technology for high-luminosity LHC upgrades.

Contribution

It presents the first full-size GEM-based prototype for CMS high-eta muon detection, including detailed design, modeling, and assembly procedures.

Findings

Successful construction of the largest Triple-GEM detector to date.

Detailed 3D modeling and electronics integration for the prototype.

Potential for improved muon detection in high-luminosity conditions.

Abstract

In view of a possible extension of the forward CMS muon detector system and future LHC luminosity upgrades, Micro-Pattern Gas Detectors (MPGDs) are an appealing technology. They can simultaneously provide precision tracking and fast trigger information, as well as sufficiently fine segmentation to cope with high particle rates in the high-eta region at LHC and its future upgrades. We report on the design and construction of a full-size prototype for the CMS endcap system, the largest Triple-GEM detector built to-date. We present details on the 3D modeling of the detector geometry, the implementation of the readout strips and electronics, and the detector assembly procedure.