Author/Authors :
Braunschweig، نويسنده , , W. and Karpinski، نويسنده , , W. and Kubicki، نويسنده , , Th. and Lübelsmeyer، نويسنده , , K. and Ortmanns، نويسنده , , J. and Pandoulas، نويسنده , , D. and Pierschel، نويسنده , , G. and Rente، نويسنده , , C. and Siedling، نويسنده , , R. and Syben، نويسنده , , O. and Tenbusch، نويسنده , , F. and Toporowsky، نويسنده , , M. and Wilms، نويسنده , , Th. and Wittmer، نويسنده , , B. and Xiao، نويسنده , , W.J.، نويسنده ,
Abstract :
A microstrip gallium arsenide detector (thickness 508 μm, strip width 100 μm, strip pitch and readout pitch 200 μm) has been tested in a 50 GeV/c electron beam at CERN. Using the low noise Viking preamplifier chip (shaping time ∼1.5 μs) signal to noise ratios up to 25 were measured depending on bias voltage and angle of incidence. Applying the so-called η-algorithm (using the impact position-sensitive charge sharing between adjacent strips) a resolution down to σ ∼ 20 μm could be obtained.
