TEST-RESULTS ON SILICON MICRO-STRIP DETECTORS FOR ATLAS

We report results from beam tests on silicon microstrip detectors usin g a binary readout system for ATLAS. The data were collected during th e 1-18 beam test at CERN in August/September 1995 and the KEK test in February 1996. The binary modules tested had been assembled from silic on microstrip detectors of different layout and from front-end electro nics chips of different architecture. The efficiency, noise occupancy and position resolution were determined as a function of the threshold setting for various bias voltages and angles of incidence for both ir radiated and non-irradiated detectors. In particular, the high spatial resolution of the beam telescope allowed the evaluation of the perfor mance as a function of the track location in between detector strips.