Celebi, E.Brooks, T.Joos, M.Rembser, C.Gurbuz, S.Çetin, Serkant Ali2024-07-182024-07-1820171742-65881742-6596https://doi.org/10.1088/1742-6596/798/1/012172https://hdl.handle.net/11411/76052nd International Conference on Particle Physics and Astrophysics (ICPPA) -- OCT 11-14, 2016 -- Moscow, RUSSIATowards the end of LHC Runl, gas leaks were observed in some parts of the Transition Radiation Tracker (TRT) of ATLAS. Due to these leaks, primary Xenon based gas mixture was replaced with Argon based mixture in various parts. Test-beam studies with a dedicated Transition Radiation Detector (TRD) prototype were carried out in 2015 in order to understand transition radiation performance with mixtures based on Argon and Krypton. We present and discuss the results of these test-beam studies with different active gas compositions.eninfo:eu-repo/semantics/openAccessConference Object2-s2.0-8501628145910.1088/1742-6596/798/1/012172N/A798N/AWOS:000403476900171