Performance of a beam telescope using double sided silicon microstrip detectors

A beam telescope consisting of four double sided, DC coupled microstrip detectors with VLSI readout electronics has been built and tested in a 70 GeV μ− beam at CERN. A signal-to-noise ratio of 53:1 and a spatial resolution of 2.7 μm (junction side) and 4.8 μm (ohmic side) have been observed on the best detectors. A telescope performance for a particle track of σxy = 2–3 μm and σslope = 2–3 μrad on the front face of a test object was achieved.