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The European Physical Journal A

, Volume 36, Issue 2, pp 139–149

First Online: 16 April 2008Received: 09 October 2007Accepted: 12 March 2008


The GERmanium Detector Array GERDA is designed for the search for -neutrinoless double-beta decay- 0ν2β with germanium detectors enriched in Ge . An 18-fold-segmented prototype detector for GERDA Phase II was exposed to an AmBe neutron source to improve the understanding of neutron-induced backgrounds. Neutron interactions with the germanium isotopes themselves and in the surrounding materials were studied. Segment information is used to identify neutron-induced peaks in the recorded energy spectra. The Geant4-based simulation package MaGe is used to simulate the experiment. Though many photon peaks from germanium isotopes excited by neutrons are correctly described by Geant4, some physics processes were identified as being incorrectly treated or even missing.

PACS.23.40.-s β decay; double β decay; electron and muon capture 14.60.Pq Neutrino mass and mixing 28.20.-v Neutron physics 29.40.-n Radiation detectors E. Bellotti

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Autor: I. Abt - A. Caldwell - K. Kröninger - J. Liu - X. Liu - B. Majorovits


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