Abstract
Prototypes of the gas-filled detectors produced on the basis of the Micromegas technology, as well as in combination with the Micromegas + GEM/TGEM structures in the multistage gas amplification circuit have been investigated with the aim of selecting variants for tracking detectors of the muon system designed for operating at high counting rates in the Compressed Baryonic Matter (CBM) experiment. Two- and three-component Ar- and He-based mixtures have been tested as the working gas. Their key characteristics are presented. The gas amplification factors are measured for various high-voltage modes, and the charge collection times determining the response speed of the tested detectors are estimated.
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Original Russian Text © E.V. Atkin, S.S. Volkov, A.G. Voronin, V.V. Ivanov, B.G. Komkov, L.G. Kudin, E.Z. Malankin, V.N. Nikulin, E.V. Roshchin, G.V. Rybakov, V.M. Samsonov, O.P. Tarasenkova, V.V. Shumikhin, A.V. Khanzadeev, E.A. Chernysheva, 2015, published in Pribory i Tekhnika Eksperimenta, 2015, No. 5, pp. 20–30.
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Atkin, E.V., Volkov, S.S., Voronin, A.G. et al. A study of the coordinate gas-filled detectors based on the Micromegas and Micromegas + GEM/TGEM technologies for the muon tracking system of the CBM experiment. Instrum Exp Tech 58, 602–611 (2015). https://doi.org/10.1134/S0020441215040260
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DOI: https://doi.org/10.1134/S0020441215040260