Performance of the gas-filled detector prototypes based on the GEM, TGEM, and Micromegas technologies was studied on the test beam of the CERN PS accelerator. Three-component mixtures based on Ar and He were used as the working gas. For all tested detector prototypes, the gas amplification factors were measured, and the detection efficiencies, cluster distributions, and the radii of the charge cloud collected on the readout electrode were estimated.

Prototypes of the gas-filled detectors based on the GEM and TGEM technologies have been studied in the multistage gas amplification circuit with the aim of selecting variants for tracking detectors of the muon system capable of operating at high counting rates in the CBM experiment. Two- and three-component mixtures based on Ar and He are used as the working gas. Their key characteristics are presented. The gas amplification factors are measured for various high-voltage modes. The charge collection times determining the response speed of the tested detectors are estimated.

The structure and results of the experimental study of the application specific integrated circuit, which contains two versions of a preamplifier for reading out and preprocessing signals of muon chambers, are presented. An integrated circuit was designed for operation in the muon system of the International Compressed Baryonic Matter (CBM) experiment at the FAIR accelerator facility (Darmstadt, Germany). It was manufactured by the CMOS technology with 0.18-μm design rules of the UMC company (Taiwan) via the Europractice European organization.