Study of the ATLAS MDT Spectrometer using High Energy CERN combined Test beam Data

n 2004, a combined system test was performed in the H8 beam line at the CERN SPS with a setup using muon chambers made of Monitored Drift Tubes (MDT) to form a spectrometer which represented 1% of the ATLAS detector. The basic design performances of the muon spectrometer were veried. The full ATLAS analysis chain was used to obtain the results presented in this paper. The stability of MDT calibration constants, the alignment system using optical devices and high energy tracks, as well as the intrinsic sagitta resolution of the Muon Spectrometer were studied and found to agree with expectations. The reconstruction of muon tracks using the combined information from both the Inner Detector and the Muon Spectrometer are also presented