Application of a Simple PSA Algorithm for HPGe Segmented Detectors to in-Beam Data

A simple Pulse Shape Analysis (PSA) algorithm is applied to signals acquired during the in-beam tests of two different highly segmented HPGe detectors. The issue of the algorithm, named Recursive Subtraction (RS), consists in the determination of the number of interactions in a detector segment and their radial localization. Following a comparison of the results obtained applying RS to the acquired signals with those of specific GEANT simulations, excellent agreement is found between the experimental number of interactions distribution and the calculated one. Some deviations between the experimental radial distribution and the calculated one are instead present. Evidence is provided that this cannot be adduced to the algorithm but most probably to a non perfect reproduction of the detector position response in the calculated signals used