SR1 atlas TRT development and test facility

The Transition Radiation Tracker (TRT) is particle tracking detector of the ATLAS Inner Detector which is designed as a robust and powerful gaseous detector that provides tracking through individual drift-tubes (straws) as well as particle identification via Transition Radiation (TR) detection. The TRT consists of 370000 straw proportional tubes of 4 mm diameter with a 30 micron anode wire, which operates with a Xe/CO2/O2 gas mixture at a high voltage of approximately 1.5 kV. This detector enters a new area that requires it to operate at unprecedented high rates and integrated particle fluxes. Full functionality of the detector over the lifetime (10 years) of the experiment is demanded.This MSc. thesis presents development, testing process and cosmic data analysis of a replica has been built in an above-ground laboratory environment in SR1 at CERN.