A simple Pulse Shape Analysis method for the determination of the number of interactions and their radial localization inside one HPGe segmented detector segment is presented. The algorithm processes only the net charge signal using a fast comparison procedure with a basis of reference signals. The efficiency of the algorithm calculated for 600 keV -rays ranges between 65 to 95% depending on the complexity of the analyzed event. The algorithm has been applied to real signals acquired during an in-beam test of the MARS 25-fold segmented HPGe detector.
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