Detector Geometry

The primary goal of silicon detectors is to measure a particle track, i.e., the geometrical position of the points where a particle traverses several layers of silicon detectors. Due to its function, a silicon detector is basically limited to two dimensions. With a simple detector with two large-area electrodes as shown in fig. , p. , no geometrical information can be retrieved. This information can only be obtained with a dedicated geometrical layout of one or both electrodes. The two prinicpal layout schemes are strips and pixels, measuring one and two dimensions, respectively.