Author/Authors :
Sellin، نويسنده , , P.J. and Buttar، نويسنده , , C.M. and Booth، نويسنده , , C.N. and Manolopoulos، نويسنده , , S. and Walsh، نويسنده , , S. and Hill، نويسنده , , J.C. and Roe، نويسنده , , Miroslav S. and Chilingarov، نويسنده , , A. and Fares، نويسنده , , F. and Moorhead، نويسنده , , G.F. and Stapnes، نويسنده , , S. and Murray، نويسنده , , W.، نويسنده ,
Abstract :
Results are reported from beam test measurements of one of the first commercial prototype gallium arsenide microstrip detectors. The detector consisted of 128 strips on a 50 μm pitch, with a wafer thickness of 200 μm. Operating at a bias of 180 V, the detector produced a signal to noise ratio of 19 to 1, with a particle detection efficiency of better than 99%. The spatial resolution of the detector was measured as 14.6 μm without charge sharing effects. Charge sharing between pairs of strips was seen to improve the spatial resolution, with an average value for all events of 10.4 μm.
