Study of the characteristics of GEM detectors for the future FAIR experiment CBM
S. Biswas, A. Abuhoza, U. Frankenfeld, J. Hehner, C.J. Schmidt, H.R., Schmidt, M.Traeger, S.Colafranceschi, A.Marinov, A.Sharma
TL;DR
This study systematically investigates the performance of triple GEM detectors, analyzing how their gain and energy resolution vary with voltage, gas mixture, and flow rate, including long-term stability tests for future FAIR CBM experiments.
Contribution
It provides new insights into the operational characteristics and stability of GEM detectors under various conditions relevant for the FAIR CBM experiment.
Findings
Effective gain increases with applied voltage.
Energy resolution depends on gas mixture and flow rate.
Long-term stability of GEM detectors has been demonstrated.
Abstract
Characteristics of triple GEM detector have been studied systematically. The variation of the effective gain and energy resolution of GEM with variation of the applied voltage has been measured with Fe55 X-ray source for different gas mixtures and with different gas flow rates. Long-term test of the GEM has also been performed.
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