Pulse shape analysis in segmented detectors as a technique for background reduction in Ge double-beta decay experiments

Abstract

The need to understand and reject backgrounds in Ge-diode detector double-beta decay experiments has given rise to the development of pulse shape analysis in such detectors to discern single-site energy deposits from multiple-site deposits. Here, we extend this analysis to segmented Ge detectors to study the effectiveness of combining segmentation with pulse shape analysis to identify the multiplicity of the energy deposits.

12 pages, 13 figures, will be submitted to NIM

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• Identification of photons in double beta-decay experiments using segmented germanium detectors - studies with a GERDA Phase II prototype detector
• Ge Detectors and $0\nu \beta \beta$: The Search for Double Beta Decay with Germanium Detectors: Past, Present and Future
• The Majorana Project
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• Background reduction and sensitivity for germanium double beta decay experiments
• Pulse shape simulation for segmented true-coaxial HPGe detectors
• Systematic Effects in Pulse Shape Analysis of HPGe Detector Signals for Neutrinoless Double-Beta Decay
• Double Beta Decay Experiments at Canfranc Underground Laboratory
• Test of pulse shape analysis using single Compton scattering events
• Pulse Shape Analysis with a Broad-Energy Germanium Detector for the GERDA experiment
• Measurement of the temperature dependence of pulse lengths in an n-type germanium detector
• A Segmented, Enriched N-type Germanium Detector for Neutrinoless Double Beta-Decay Experiments
• Real-time digital signal processor implementation of self-calibrating pulse-shape discriminator for high purity germanium
• Axes determination for segmented true-coaxial HPGe detectors
• Compton suppression in BEGe detectors by digital pulse shape analysis