Photon Identification with Segmented Germanium Detectors in Low Radiation Environments

Journal Article · Wed Mar 28 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2722061· OSTI ID:21055036

Abt, I; Caldwell, A; Kroeninger, K; Liu, J; Liu, X; Majorovits, B; Stelzer, F ^[1]

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1. MPI fuer Physik, Foehringer Ring 6, 80805 Munich (Germany)

Effective identification of photon-induced events is essential for a new generation of double beta-decay experiments. One such experiment is the GERmanium Detector Array, GERDA, located at the INFN Gran Sasso National Laboratory (LNGS) in Italy. It uses germanium, enriched in 76Ge, as source and detector, and aims at a background level of less than 10-3 counts/(kg {center_dot} keV {center_dot} y) in the region of the Q{beta}{beta}-value. Highly segmented detectors are being developed for this experiment. A detailed GEANT4 Monte Carlo study about the possibilities to identify photon--induced background was published previously. An 18-fold segmented prototype detector was tested and its performance compared with Monte Carlo predictions. The detector performed well and the agreement with the Monte Carlo is excellent.

• OSTI ID: 21055036
• Journal Information: AIP Conference Proceedings, Vol. 897, Issue 1; Conference: LRT 2006: Topical workshop on low radioactivity techniques, Aussois (France), 1-4 Oct 2006; Other Information: DOI: 10.1063/1.2722061; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BACKGROUND RADIATION
COMPARATIVE EVALUATIONS
DOUBLE BETA DECAY
G CODES
GE SEMICONDUCTOR DETECTORS
GERMANIUM 76
MONTE CARLO METHOD
PARTICLE IDENTIFICATION
PARTICLE TRACKS
PERFORMANCE
PHOTONS