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HK: Fachverband Physik der Hadronen und Kerne

HK 9: Astroteilchenphysik I

HK 9.9: Vortrag

Montag, 15. März 2010, 18:45–19:00, HG ÜR 5

Simulation and modeling of BEGe detectors for GERDA Phase II — •Matteo Agostini¹, Calin A. Ur², Marik Barnabé Heider¹, Enrico Bellotti³, Dušan Budjáš¹, Carla Cattadori³, Assunta di Vacri⁴, Alberto Garfagnini^2,5, Luciano Pandola⁴, and Stefan Schönert¹ — ¹Max-Plank-Institute für Kernphysik, Heidelbeg, Germany — ²INFN - Padova, Padova, Italy — ³INFN - Milano Bicocca, Milano, Italy — ⁴INFN - LNGS, L’Aquila, Italy — ⁵University of Padova, Italy

The GERDA experiment aims to search for the neutrinoless double beta decay of ⁷⁶Ge by using high purity germanium detectors enriched in ⁷⁶Ge. The background suppression in the GERDA experiment can be achieved by analyzing the time-development of the detector signals. To investigate the pulse shape discrimination capabilities of Broad Energy Germanium (BEGe) detectors, a complete simulation of the signal formation and evolution was developed. The results of the simulations will be presented and compared with measurements. The characteristic shapes of the BEGe detector signals and their dependence of the interaction position will be discussed.